Summary

d0f4b601ec0028ab1dbde57d6b91c77

File d0f4b601ec0028ab1dbde57d6b91c77

Summary
Download Resubmit sample Download yara

Size 1.1MB
Type PE32+ executable (GUI) x86-64, for MS Windows
MD5 d0f4b601ec0028ab1dbde57d6b91c77a
SHA1 fa568618c0d1a7ba6965742d15f80378795e6df1
SHA256 91af8e1da6c110954d001e703c668eb799bd308a913ae34bd2ff4f6d07f97735
SHA512
1b3ee989ed1ced511274e3af40889ae34a8e4ac50757d179beb8b3db313dd0431de58390faffbaf8e369642b56d579793b2e4aedad2fc403265efdb3186f0078
CRC32 D138CBAC
ssdeep None
PDB Path c:\srv\slave\workdir\repos\opera\chromium\src\out\Release\installer_helper\installer_helper.exe.pdb
Yara
  • anti_dbg - Checks if being debugged
  • win_files_operation - Affect private profile

Score

This file is very suspicious, with a score of 10 out of 10!

Please notice: The scoring system is currently still in development and should be considered an alpha feature.

Autosubmit

6433748

6433749

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Information on Execution

Analysis
Category Started Completed Duration Routing Logs
FILE May 5, 2025, 11:57 a.m. May 5, 2025, 12:03 p.m. 357 seconds internet Show Analyzer Log
Show Cuckoo Log

Analyzer Log

2025-05-05 10:41:03,015 [analyzer] DEBUG: Starting analyzer from: C:\tmpsftntc
2025-05-05 10:41:03,030 [analyzer] DEBUG: Pipe server name: \??\PIPE\DvtzrUIeJhLBbVXoSJtZHjEDXS
2025-05-05 10:41:03,030 [analyzer] DEBUG: Log pipe server name: \??\PIPE\uAMLixnvvtrVVpbcZVYs
2025-05-05 10:41:03,342 [analyzer] DEBUG: Started auxiliary module Curtain
2025-05-05 10:41:03,342 [analyzer] DEBUG: Started auxiliary module DbgView
2025-05-05 10:41:03,937 [analyzer] DEBUG: Started auxiliary module Disguise
2025-05-05 10:41:04,203 [analyzer] DEBUG: Loaded monitor into process with pid 508
2025-05-05 10:41:04,203 [analyzer] DEBUG: Started auxiliary module DumpTLSMasterSecrets
2025-05-05 10:41:04,203 [analyzer] DEBUG: Started auxiliary module Human
2025-05-05 10:41:04,203 [analyzer] DEBUG: Started auxiliary module InstallCertificate
2025-05-05 10:41:04,217 [analyzer] DEBUG: Started auxiliary module Reboot
2025-05-05 10:41:04,280 [analyzer] DEBUG: Started auxiliary module RecentFiles
2025-05-05 10:41:04,280 [analyzer] DEBUG: Started auxiliary module Screenshots
2025-05-05 10:41:04,296 [analyzer] DEBUG: Started auxiliary module Sysmon
2025-05-05 10:41:04,296 [analyzer] DEBUG: Started auxiliary module LoadZer0m0n
2025-05-05 10:41:04,421 [lib.api.process] INFO: Successfully executed process from path u'C:\\Users\\ADMINI~1\\AppData\\Local\\Temp\\d0f4b601ec0028ab1dbde57d6b91c77.exe' with arguments '' and pid 1524
2025-05-05 10:41:04,671 [analyzer] DEBUG: Loaded monitor into process with pid 1524
2025-05-05 10:41:05,030 [analyzer] INFO: Added new file to list with pid 1524 and path C:\Windows\SysWOW64\Macromed\Flash\FlashPlayerUpdateService.exe
2025-05-05 10:41:05,467 [analyzer] INFO: Added new file to list with pid 1524 and path C:\Windows\System32\alg.exe
2025-05-05 10:41:05,750 [analyzer] INFO: Added new file to list with pid 1524 and path C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_state.exe
2025-05-05 10:41:06,171 [analyzer] INFO: Added new file to list with pid 1524 and path C:\Windows\Microsoft.NET\Framework\v2.0.50727\mscorsvw.exe
2025-05-05 10:41:06,578 [analyzer] INFO: Added new file to list with pid 1524 and path C:\Windows\Microsoft.NET\Framework64\v2.0.50727\mscorsvw.exe
2025-05-05 10:41:06,890 [analyzer] INFO: Added new file to list with pid 1524 and path C:\Windows\System32\dllhost.exe
2025-05-05 11:00:23,405 [analyzer] INFO: Analysis timeout hit, terminating analysis.
2025-05-05 11:00:23,719 [lib.api.process] ERROR: Failed to dump memory of 64-bit process with pid 1524.
2025-05-05 11:00:24,094 [analyzer] INFO: Terminating remaining processes before shutdown.
2025-05-05 11:00:24,094 [lib.api.process] INFO: Successfully terminated process with pid 1524.
2025-05-05 11:00:24,155 [analyzer] WARNING: File at path u'c:\\windows\\system32\\alg.exe' does not exist, skip.
2025-05-05 11:00:24,155 [analyzer] INFO: Analysis completed.

Cuckoo Log

2025-05-05 11:57:22,978 [cuckoo.core.scheduler] DEBUG: Task #6433120: no machine available yet
2025-05-05 11:57:24,087 [cuckoo.core.scheduler] DEBUG: Task #6433120: no machine available yet
2025-05-05 11:57:25,209 [cuckoo.core.scheduler] DEBUG: Task #6433120: no machine available yet
2025-05-05 11:57:26,408 [cuckoo.core.scheduler] DEBUG: Task #6433120: no machine available yet
2025-05-05 11:57:27,688 [cuckoo.core.scheduler] INFO: Task #6433120: acquired machine win7x6421 (label=win7x6421)
2025-05-05 11:57:27,691 [cuckoo.core.resultserver] DEBUG: Now tracking machine 192.168.168.221 for task #6433120
2025-05-05 11:57:28,096 [cuckoo.auxiliary.sniffer] INFO: Started sniffer with PID 3079562 (interface=vboxnet0, host=192.168.168.221)
2025-05-05 11:57:39,420 [cuckoo.machinery.virtualbox] DEBUG: Starting vm win7x6421
2025-05-05 11:57:40,184 [cuckoo.machinery.virtualbox] DEBUG: Restoring virtual machine win7x6421 to vmcloak
2025-05-05 11:59:45,351 [cuckoo.core.guest] INFO: Starting analysis #6433120 on guest (id=win7x6421, ip=192.168.168.221)
2025-05-05 11:59:46,357 [cuckoo.core.guest] DEBUG: win7x6421: not ready yet
2025-05-05 11:59:51,393 [cuckoo.core.guest] INFO: Guest is running Cuckoo Agent 0.10 (id=win7x6421, ip=192.168.168.221)
2025-05-05 11:59:51,505 [cuckoo.core.guest] DEBUG: Uploading analyzer to guest (id=win7x6421, ip=192.168.168.221, monitor=latest, size=6660546)
2025-05-05 11:59:52,981 [cuckoo.core.resultserver] DEBUG: Task #6433120: live log analysis.log initialized.
2025-05-05 11:59:54,110 [cuckoo.core.resultserver] DEBUG: Task #6433120 is sending a BSON stream
2025-05-05 11:59:54,469 [cuckoo.core.resultserver] DEBUG: Task #6433120 is sending a BSON stream
2025-05-05 11:59:55,417 [cuckoo.core.resultserver] DEBUG: Task #6433120: File upload for 'shots/0001.jpg'
2025-05-05 11:59:55,447 [cuckoo.core.resultserver] DEBUG: Task #6433120 uploaded file length: 133477
2025-05-05 11:59:57,591 [cuckoo.core.resultserver] DEBUG: Task #6433120: File upload for 'shots/0002.jpg'
2025-05-05 11:59:57,613 [cuckoo.core.resultserver] DEBUG: Task #6433120 uploaded file length: 141513
2025-05-05 12:00:04,934 [cuckoo.core.resultserver] DEBUG: Task #6433120: File upload for 'shots/0003.jpg'
2025-05-05 12:00:04,955 [cuckoo.core.resultserver] DEBUG: Task #6433120 uploaded file length: 141026
2025-05-05 12:00:07,518 [cuckoo.core.guest] DEBUG: win7x6421: analysis #6433120 still processing
2025-05-05 12:00:22,632 [cuckoo.core.guest] DEBUG: win7x6421: analysis #6433120 still processing
2025-05-05 12:00:23,853 [cuckoo.core.resultserver] DEBUG: Task #6433120: File upload for 'curtain/1746435623.84.curtain.log'
2025-05-05 12:00:23,856 [cuckoo.core.resultserver] DEBUG: Task #6433120 uploaded file length: 36
2025-05-05 12:00:24,079 [cuckoo.core.resultserver] DEBUG: Task #6433120: File upload for 'sysmon/1746435624.06.sysmon.xml'
2025-05-05 12:00:24,101 [cuckoo.core.resultserver] DEBUG: Task #6433120 uploaded file length: 1950820
2025-05-05 12:00:24,112 [cuckoo.core.resultserver] DEBUG: Task #6433120: File upload for 'files/9738696ee3c747e7_mscorsvw.exe'
2025-05-05 12:00:24,118 [cuckoo.core.resultserver] DEBUG: Task #6433120 uploaded file length: 663552
2025-05-05 12:00:24,122 [cuckoo.core.resultserver] DEBUG: Task #6433120: File upload for 'files/48e4a8f565fbe359_flashplayerupdateservice.exe'
2025-05-05 12:00:24,128 [cuckoo.core.resultserver] DEBUG: Task #6433120 uploaded file length: 841216
2025-05-05 12:00:24,134 [cuckoo.core.resultserver] DEBUG: Task #6433120: File upload for 'files/53b2a2e24a4e82b0_aspnet_state.exe'
2025-05-05 12:00:24,141 [cuckoo.core.resultserver] DEBUG: Task #6433120 uploaded file length: 616448
2025-05-05 12:00:24,145 [cuckoo.core.resultserver] DEBUG: Task #6433120: File upload for 'files/f7ad4b09afb301ce_dllhost.exe'
2025-05-05 12:00:24,147 [cuckoo.core.resultserver] DEBUG: Task #6433120 uploaded file length: 7168
2025-05-05 12:00:24,153 [cuckoo.core.resultserver] DEBUG: Task #6433120: File upload for 'files/a9144d8db6680c89_mscorsvw.exe'
2025-05-05 12:00:24,162 [cuckoo.core.resultserver] DEBUG: Task #6433120 uploaded file length: 640000
2025-05-05 12:00:24,608 [cuckoo.core.resultserver] DEBUG: Task #6433120 had connection reset for <Context for LOG>
2025-05-05 12:00:25,700 [cuckoo.core.guest] INFO: win7x6421: analysis completed successfully
2025-05-05 12:00:25,750 [cuckoo.core.plugins] DEBUG: Stopped auxiliary module: Redsocks
2025-05-05 12:00:25,780 [cuckoo.core.plugins] DEBUG: Stopped auxiliary module: Sniffer
2025-05-05 12:00:26,490 [cuckoo.machinery.virtualbox] INFO: Successfully generated memory dump for virtual machine with label win7x6421 to path /srv/cuckoo/cwd/storage/analyses/6433120/memory.dmp
2025-05-05 12:00:26,491 [cuckoo.machinery.virtualbox] DEBUG: Stopping vm win7x6421
2025-05-05 12:03:18,191 [cuckoo.core.resultserver] DEBUG: Stopped tracking machine 192.168.168.221 for task #6433120
2025-05-05 12:03:19,907 [cuckoo.core.scheduler] DEBUG: Released database task #6433120
2025-05-05 12:03:19,961 [cuckoo.core.scheduler] INFO: Task #6433120: analysis procedure completed

Signatures

Yara rules detected for file (2 events)
description Checks if being debugged rule anti_dbg
description Affect private profile rule win_files_operation
Allocates read-write-execute memory (usually to unpack itself) (1 event)
Time & API Arguments Status Return Repeated

NtProtectVirtualMemory

 process_identifier: 1524
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
length: 393216
protection: 64 (PAGE_EXECUTE_READWRITE)
base_address: 0x0000000001cd0000
process_handle: 0xffffffffffffffff
1 0 0
Queries for the computername (2 events)
Time & API Arguments Status Return Repeated

GetComputerNameW

 computer_name: ǣ Ǣ
0 0

GetComputerNameW

 computer_name: NSDRZVUQFCHAB
1 1 0
This executable has a PDB path (1 event)
pdb_path c:\srv\slave\workdir\repos\opera\chromium\src\out\Release\installer_helper\installer_helper.exe.pdb
The executable contains unknown PE section names indicative of a packer (could be a false positive) (4 events)
section .00cfg
section .gxfg
section .retplne
section _RDATA
One or more processes crashed (1 event)
Time & API Arguments Status Return Repeated

__exception__

 stacktrace: 
d0f4b601ec0028ab1dbde57d6b91c77+0x2283 @ 0x140002283
d0f4b601ec0028ab1dbde57d6b91c77+0x219e @ 0x14000219e
d0f4b601ec0028ab1dbde57d6b91c77+0x308e @ 0x14000308e
d0f4b601ec0028ab1dbde57d6b91c77+0x26aa @ 0x1400026aa
d0f4b601ec0028ab1dbde57d6b91c77+0x2ae3 @ 0x140002ae3
d0f4b601ec0028ab1dbde57d6b91c77+0x2a99 @ 0x140002a99
d0f4b601ec0028ab1dbde57d6b91c77+0x2e09 @ 0x140002e09
d0f4b601ec0028ab1dbde57d6b91c77+0xf03a @ 0x14000f03a
d0f4b601ec0028ab1dbde57d6b91c77+0x2f92 @ 0x140002f92
d0f4b601ec0028ab1dbde57d6b91c77+0x11ea1 @ 0x140011ea1
d0f4b601ec0028ab1dbde57d6b91c77+0x10c8c @ 0x140010c8c
d0f4b601ec0028ab1dbde57d6b91c77+0x302ce @ 0x1400302ce
d0f4b601ec0028ab1dbde57d6b91c77+0x300b4 @ 0x1400300b4
d0f4b601ec0028ab1dbde57d6b91c77+0x323bd @ 0x1400323bd
d0f4b601ec0028ab1dbde57d6b91c77+0x164d8 @ 0x1400164d8
d0f4b601ec0028ab1dbde57d6b91c77+0x17020 @ 0x140017020
BaseThreadInitThunk+0xd CreateThread-0x53 kernel32+0x1652d @ 0x76c3652d
RtlUserThreadStart+0x21 strchr-0x3df ntdll+0x2c541 @ 0x76d6c541

exception.instruction_r: cc 0f 0b cc cc cc cc cc cc cc cc cc cc 48 ff 25
exception.symbol: d0f4b601ec0028ab1dbde57d6b91c77+0x2283
exception.instruction: int3
exception.module: d0f4b601ec0028ab1dbde57d6b91c77.exe
exception.exception_code: 0x80000003
exception.offset: 8835
exception.address: 0x140002283
registers.r14: 0
registers.r15: 0
registers.rcx: 127
registers.rsi: 0
registers.r10: 3221225785
registers.rbx: 0
registers.rsp: 1245152
registers.r11: 514
registers.r8: 1993605120
registers.r9: 958
registers.rdx: 0
registers.r12: 0
registers.rbp: 0
registers.rdi: 0
registers.rax: 0
registers.r13: 0
1 0 0
One or more potentially interesting buffers were extracted, these generally contain injected code, configuration data, etc.
Creates executable files on the filesystem (6 events)
file C:\Windows\Microsoft.NET\Framework\v2.0.50727\mscorsvw.exe
file C:\Windows\SysWOW64\Macromed\Flash\FlashPlayerUpdateService.exe
file C:\Windows\Microsoft.NET\Framework64\v4.0.30319\aspnet_state.exe
file C:\Windows\System32\dllhost.exe
file C:\Windows\Microsoft.NET\Framework64\v2.0.50727\mscorsvw.exe
file C:\Windows\System32\alg.exe
The binary likely contains encrypted or compressed data indicative of a packer (2 events)
section {u'size_of_data': u'0x0008e000', u'virtual_address': u'0x000a2000', u'entropy': 7.930453550384914, u'name': u'.reloc', u'virtual_size': u'0x0008f000'} entropy 7.93045355038 description A section with a high entropy has been found
entropy 0.491987873538 description Overall entropy of this PE file is high
Checks for the Locally Unique Identifier on the system for a suspicious privilege (1 event)
Time & API Arguments Status Return Repeated

LookupPrivilegeValueW

 system_name:
privilege_name: SeTakeOwnershipPrivilege
1 1 0
Raised Snort alerts (2 events)
snort ET INFO Observed DNS Query to .biz TLD
snort ET INFO Namecheap URL Forward
Raised Suricata alerts (7 events)
suricata ET INFO Observed DNS Query to .biz TLD
suricata ETPRO MALWARE Win32/Expiro.NDO CnC Activity
suricata ET MALWARE Possible Compromised Host AnubisNetworks Sinkhole Cookie Value Snkz
suricata ET MALWARE Possible Compromised Host AnubisNetworks Sinkhole Cookie Value btst
suricata ET MALWARE DNS Query to Expiro Related Domain (przvgke .biz)
suricata ET MALWARE DNS Query to Expiro Related Domain (knjghuig .biz)
suricata ET INFO Namecheap URL Forward
File has been identified by 13 AntiVirus engine on IRMA as malicious (13 events)
G Data Antivirus (Windows) Virus: Win64.Expiro.Gen.7 (Engine A)
Avast Core Security (Linux) Win64:Expiro-AJ [Inf]
C4S ClamAV (Linux) Win.Virus.Expiro-10035210-0
Trend Micro SProtect (Linux) Virus.Win64.EXPIRO.SMAJC
WithSecure (Linux) Malware.W32/Infector.Gen
eScan Antivirus (Linux) Win64.Expiro.Gen.7(DB)
ESET Security (Windows) a variant of Win64/Expiro.DP virus
Sophos Anti-Virus (Linux) W64/Moiva-B
DrWeb Antivirus (Linux) Win32.Expiro.153
ClamAV (Linux) Win.Virus.Expiro-10035210-0
Bitdefender Antivirus (Linux) Win64.Expiro.Gen.7
Kaspersky Standard (Windows) Virus.Win64.Moiva.a
Emsisoft Commandline Scanner (Windows) Win64.Expiro.Gen.7 (B)
File has been identified by 49 AntiVirus engines on VirusTotal as malicious (49 events)
Bkav W64.AIDetectMalware
Lionic Virus.Win32.Expiro.n!c
Cynet Malicious (score: 100)
CAT-QuickHeal W32.Expiro.R3
Skyhigh BehavesLike.Win64.Generic.tc
ALYac Win64.Expiro.Gen.7
Cylance unsafe
VIPRE Win64.Expiro.Gen.7
Sangfor Virus.Win64.Expiro.Vnwo
CrowdStrike win/malicious_confidence_100% (W)
BitDefender Win64.Expiro.Gen.7
K7GW Virus ( 0058d9c51 )
K7AntiVirus Virus ( 0058d9c51 )
Arcabit Win64.Expiro.Gen.7
Symantec W64.Xpiro.J!dam
Elastic malicious (high confidence)
ESET-NOD32 a variant of Win64/Expiro.DP
APEX Malicious
Avast Win64:Expiro-AJ [Inf]
Kaspersky Virus.Win64.Moiva.a
Alibaba Virus:Win64/Expiro.8508a2fd
NANO-Antivirus Virus.Win64.Moiva.khmpmn
MicroWorld-eScan Win64.Expiro.Gen.7
Emsisoft Win64.Expiro.Gen.7 (B)
F-Secure Malware.W32/Infector.Gen
DrWeb Win32.Expiro.158
TrendMicro Virus.Win64.EXPIRO.SMAJC
Trapmine malicious.high.ml.score
FireEye Generic.mg.d0f4b601ec0028ab
Sophos W64/Moiva-B
Ikarus Virus.Win64.Expiro
Google Detected
Avira W32/Infector.Gen
MAX malware (ai score=80)
Antiy-AVL Virus/Win32.Expiro.x
Kingsoft malware.kb.a.748
Microsoft Virus:Win64/Expiro.DD!MTB
ZoneAlarm Virus.Win64.Moiva.a
GData Win64.Expiro.Gen.7
Varist W64/Expiro.AR.gen!Eldorado
AhnLab-V3 Virus/Win.Expiro.X2155
TACHYON Virus/W64.Movia
DeepInstinct MALICIOUS
Malwarebytes Virus.M0yv
Panda W64/Moyv.A
Tencent Virus.Win64.VirMoiva.a
SentinelOne Static AI - Malicious PE
Fortinet W64/Expiro.CU
AVG Win64:Expiro-AJ [Inf]
Screenshots
Name Response Post-Analysis Lookup
No hosts contacted.
IP Address Status Action VT Location
No hosts contacted.
Cuckoo

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