Summary

af5f9fabf7d89d8f0d8af6b93206727c598a8eadfd3b3b4780c99001de7c7613

File af5f9fabf7d89d8f0d8af6b93206727c598a8eadfd3b3b4780c99001de7c7613

Summary
Download Resubmit sample

Size 88.2KB
Type PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed
MD5 c21e260e88a8225124c97dab8cf96160
SHA1 b12a76ec6a474fedc62d9b56af61ae12e41259c8
SHA256 af5f9fabf7d89d8f0d8af6b93206727c598a8eadfd3b3b4780c99001de7c7613
SHA512
d4730bd7d562d9ad6c4b47cd544725aa7744f4fdb01b1985dba0cb762feb91d4a324b0ba67a7f5219e358b201c5d76d44bc3f7c4e1b0bb01fdd10155547d61d7
CRC32 50E8A1B2
ssdeep None
Yara
  • UPX - (no description)
  • suspicious_packer_section - The packer/protector section names/keywords

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

6732399

6732400

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Information on Execution

Analysis
Category Started Completed Duration Routing Logs
FILE July 14, 2025, 1:11 p.m. July 14, 2025, 1:12 p.m. 67 seconds internet Show Analyzer Log
Show Cuckoo Log

Analyzer Log

2025-07-09 07:34:07,015 [analyzer] DEBUG: Starting analyzer from: C:\tmptpreht
2025-07-09 07:34:07,015 [analyzer] DEBUG: Pipe server name: \??\PIPE\PXQFDETDiAQrBduEQH
2025-07-09 07:34:07,015 [analyzer] DEBUG: Log pipe server name: \??\PIPE\MBaibPFMqbPxGmeTvLqtRtDqtrsfu
2025-07-09 07:34:07,312 [analyzer] DEBUG: Started auxiliary module Curtain
2025-07-09 07:34:07,312 [analyzer] DEBUG: Started auxiliary module DbgView
2025-07-09 07:34:08,015 [analyzer] DEBUG: Started auxiliary module Disguise
2025-07-09 07:34:08,203 [analyzer] DEBUG: Loaded monitor into process with pid 500
2025-07-09 07:34:08,203 [analyzer] DEBUG: Started auxiliary module DumpTLSMasterSecrets
2025-07-09 07:34:08,203 [analyzer] DEBUG: Started auxiliary module Human
2025-07-09 07:34:08,203 [analyzer] DEBUG: Started auxiliary module InstallCertificate
2025-07-09 07:34:08,203 [analyzer] DEBUG: Started auxiliary module Reboot
2025-07-09 07:34:08,280 [analyzer] DEBUG: Started auxiliary module RecentFiles
2025-07-09 07:34:08,280 [analyzer] DEBUG: Started auxiliary module Screenshots
2025-07-09 07:34:08,280 [analyzer] DEBUG: Started auxiliary module Sysmon
2025-07-09 07:34:08,280 [analyzer] DEBUG: Started auxiliary module LoadZer0m0n
2025-07-09 07:34:08,453 [lib.api.process] INFO: Successfully executed process from path u'C:\\Users\\ADMINI~1\\AppData\\Local\\Temp\\af5f9fabf7d89d8f0d8af6b93206727c598a8eadfd3b3b4780c99001de7c7613.exe' with arguments '' and pid 2648
2025-07-09 07:34:08,687 [analyzer] DEBUG: Loaded monitor into process with pid 2648
2025-07-09 07:34:08,780 [analyzer] INFO: Added new file to list with pid 2648 and path C:\Users\Administrator\AppData\Local\Temp\backup.exe
2025-07-09 07:34:08,796 [analyzer] INFO: Added new file to list with pid 2648 and path C:\Users\Administrator\AppData\Local\Temp\0C7910BA-F902-421E-9E69-CF9AEE0DD4D7\backup.exe
2025-07-09 07:34:08,890 [analyzer] INFO: Injected into process with pid 344 and name ''
2025-07-09 07:34:09,078 [analyzer] DEBUG: Loaded monitor into process with pid 344
2025-07-09 07:34:09,171 [analyzer] INFO: Added new file to list with pid 2648 and path C:\Users\Administrator\AppData\Local\Temp\9C7EA51D-B2B9-4ABB-A82F-1B32707A146E\backup.exe
2025-07-09 07:34:09,328 [analyzer] INFO: Added new file to list with pid 2648 and path C:\Users\Administrator\AppData\Local\Temp\hsperfdata_Administrator\backup.exe
2025-07-09 07:34:10,140 [analyzer] INFO: Added new file to list with pid 344 and path C:\backup.exe
2025-07-09 07:34:37,453 [analyzer] INFO: Analysis timeout hit, terminating analysis.
2025-07-09 07:34:37,905 [analyzer] INFO: Terminating remaining processes before shutdown.
2025-07-09 07:34:37,905 [lib.api.process] INFO: Successfully terminated process with pid 2648.
2025-07-09 07:34:37,905 [lib.api.process] INFO: Successfully terminated process with pid 344.
2025-07-09 07:34:37,937 [analyzer] INFO: Analysis completed.

Cuckoo Log

2025-07-14 13:11:27,875 [cuckoo.core.scheduler] INFO: Task #6705115: acquired machine win7x641 (label=win7x641)
2025-07-14 13:11:27,876 [cuckoo.core.resultserver] DEBUG: Now tracking machine 192.168.168.201 for task #6705115
2025-07-14 13:11:28,245 [cuckoo.auxiliary.sniffer] INFO: Started sniffer with PID 1730138 (interface=vboxnet0, host=192.168.168.201)
2025-07-14 13:11:28,305 [cuckoo.machinery.virtualbox] DEBUG: Starting vm win7x641
2025-07-14 13:11:29,141 [cuckoo.machinery.virtualbox] DEBUG: Restoring virtual machine win7x641 to vmcloak
2025-07-14 13:11:40,537 [cuckoo.core.guest] INFO: Starting analysis #6705115 on guest (id=win7x641, ip=192.168.168.201)
2025-07-14 13:11:41,544 [cuckoo.core.guest] DEBUG: win7x641: not ready yet
2025-07-14 13:11:46,584 [cuckoo.core.guest] INFO: Guest is running Cuckoo Agent 0.10 (id=win7x641, ip=192.168.168.201)
2025-07-14 13:11:46,678 [cuckoo.core.guest] DEBUG: Uploading analyzer to guest (id=win7x641, ip=192.168.168.201, monitor=latest, size=6660546)
2025-07-14 13:11:48,101 [cuckoo.core.resultserver] DEBUG: Task #6705115: live log analysis.log initialized.
2025-07-14 13:11:49,250 [cuckoo.core.resultserver] DEBUG: Task #6705115 is sending a BSON stream
2025-07-14 13:11:49,702 [cuckoo.core.resultserver] DEBUG: Task #6705115 is sending a BSON stream
2025-07-14 13:11:50,094 [cuckoo.core.resultserver] DEBUG: Task #6705115 is sending a BSON stream
2025-07-14 13:11:50,551 [cuckoo.core.resultserver] DEBUG: Task #6705115: File upload for 'shots/0001.jpg'
2025-07-14 13:11:50,576 [cuckoo.core.resultserver] DEBUG: Task #6705115 uploaded file length: 133433
2025-07-14 13:12:02,898 [cuckoo.core.guest] DEBUG: win7x641: analysis #6705115 still processing
2025-07-14 13:12:18,089 [cuckoo.core.guest] DEBUG: win7x641: analysis #6705115 still processing
2025-07-14 13:12:18,861 [cuckoo.core.resultserver] DEBUG: Task #6705115: File upload for 'curtain/1752039277.73.curtain.log'
2025-07-14 13:12:18,866 [cuckoo.core.resultserver] DEBUG: Task #6705115 uploaded file length: 36
2025-07-14 13:12:19,014 [cuckoo.core.resultserver] DEBUG: Task #6705115: File upload for 'sysmon/1752039277.89.sysmon.xml'
2025-07-14 13:12:19,021 [cuckoo.core.resultserver] DEBUG: Task #6705115 uploaded file length: 526368
2025-07-14 13:12:19,030 [cuckoo.core.resultserver] DEBUG: Task #6705115: File upload for 'files/98095e12419a5484_backup.exe'
2025-07-14 13:12:19,032 [cuckoo.core.resultserver] DEBUG: Task #6705115 uploaded file length: 90300
2025-07-14 13:12:19,037 [cuckoo.core.resultserver] DEBUG: Task #6705115: File upload for 'files/a1378d16cf226114_backup.exe'
2025-07-14 13:12:19,039 [cuckoo.core.resultserver] DEBUG: Task #6705115 uploaded file length: 90302
2025-07-14 13:12:19,044 [cuckoo.core.resultserver] DEBUG: Task #6705115: File upload for 'files/dc531a3005803477_backup.exe'
2025-07-14 13:12:19,047 [cuckoo.core.resultserver] DEBUG: Task #6705115 uploaded file length: 90300
2025-07-14 13:12:19,574 [cuckoo.core.resultserver] DEBUG: Task #6705115 had connection reset for <Context for LOG>
2025-07-14 13:12:21,102 [cuckoo.core.guest] INFO: win7x641: analysis completed successfully
2025-07-14 13:12:21,115 [cuckoo.core.plugins] DEBUG: Stopped auxiliary module: Redsocks
2025-07-14 13:12:21,143 [cuckoo.core.plugins] DEBUG: Stopped auxiliary module: Sniffer
2025-07-14 13:12:22,224 [cuckoo.machinery.virtualbox] INFO: Successfully generated memory dump for virtual machine with label win7x641 to path /srv/cuckoo/cwd/storage/analyses/6705115/memory.dmp
2025-07-14 13:12:22,225 [cuckoo.machinery.virtualbox] DEBUG: Stopping vm win7x641
2025-07-14 13:12:34,385 [cuckoo.core.resultserver] DEBUG: Stopped tracking machine 192.168.168.201 for task #6705115
2025-07-14 13:12:34,869 [cuckoo.core.scheduler] DEBUG: Released database task #6705115
2025-07-14 13:12:34,885 [cuckoo.core.scheduler] INFO: Task #6705115: analysis procedure completed

Signatures

Yara rules detected for file (2 events)
description (no description) rule UPX
description The packer/protector section names/keywords rule suspicious_packer_section
Creates executable files on the filesystem (5 events)
file C:\Users\Administrator\AppData\Local\Temp\0C7910BA-F902-421E-9E69-CF9AEE0DD4D7\backup.exe
file C:\backup.exe
file C:\Users\Administrator\AppData\Local\Temp\backup.exe
file C:\Users\Administrator\AppData\Local\Temp\9C7EA51D-B2B9-4ABB-A82F-1B32707A146E\backup.exe
file C:\Users\Administrator\AppData\Local\Temp\hsperfdata_Administrator\backup.exe
Drops an executable to the user AppData folder (1 event)
file C:\Users\Administrator\AppData\Local\Temp\0C7910BA-F902-421E-9E69-CF9AEE0DD4D7\backup.exe
Changes read-write memory protection to read-execute (probably to avoid detection when setting all RWX flags at the same time) (1 event)
Time & API Arguments Status Return Repeated

NtProtectVirtualMemory

 process_identifier: 2648
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
length: 24576
protection: 32 (PAGE_EXECUTE_READ)
base_address: 0x003f0000
process_handle: 0xffffffff
1 0 0
The binary likely contains encrypted or compressed data indicative of a packer (2 events)
section {u'size_of_data': u'0x00003e00', u'virtual_address': u'0x00011000', u'entropy': 7.804677160000422, u'name': u'UPX1', u'virtual_size': u'0x00004000'} entropy 7.80467716 description A section with a high entropy has been found
entropy 0.392405063291 description Overall entropy of this PE file is high
The executable is compressed using UPX (2 events)
section UPX0 description Section name indicates UPX
section UPX1 description Section name indicates UPX
Attempts to modify Explorer settings to prevent file extensions from being displayed (1 event)
registry HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt
Attempts to modify Explorer settings to prevent hidden files from being displayed (1 event)
registry HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Hidden
File has been identified by 14 AntiVirus engine on IRMA as malicious (14 events)
G Data Antivirus (Windows) Virus: Trojan.Generic.4385790 (Engine A), Win32.Trojan.Vilsel.B (Engine B)
Avast Core Security (Linux) Win32:Evo-gen [Trj]
C4S ClamAV (Linux) Win.Malware.Genpack-6989317-0
Trend Micro SProtect (Linux) WORM_VILSEL.SMB
Trellix (Linux) Generic VB.z trojan
WithSecure (Linux) Trojan.TR/Crypt.ULPM.Gen
eScan Antivirus (Linux) Trojan.Generic.4385790(DB)
ESET Security (Windows) Win32/VB.OZA trojan
Sophos Anti-Virus (Linux) Troj/VB-LET
DrWeb Antivirus (Linux) Trojan.Copyself.102
ClamAV (Linux) Win.Malware.Genpack-6989317-0
Bitdefender Antivirus (Linux) Trojan.Generic.4385790
Kaspersky Standard (Windows) Trojan.Win32.Vilsel.loy
Emsisoft Commandline Scanner (Windows) Trojan.Generic.4385790 (B)
File has been identified by 61 AntiVirus engines on VirusTotal as malicious (50 out of 61 events)
tehtris Generic.Malware
Cynet Malicious (score: 100)
Skyhigh BehavesLike.Win32.Generic.mh
ALYac Trojan.Generic.4385790
Cylance Unsafe
VIPRE Trojan.Generic.4385790
Sangfor Suspicious.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
BitDefender Trojan.Generic.4385790
K7GW Trojan ( 005640b91 )
K7AntiVirus Trojan ( 005640b91 )
Arcabit Trojan.Generic.D42EBFE
Baidu Win32.Trojan.VB.x
VirIT Trojan.Win32.Copyself.DY
Symantec W32.Vilsel!gen1
Elastic malicious (moderate confidence)
ESET-NOD32 Win32/VB.OZA
APEX Malicious
Avast Win32:Evo-gen [Trj]
ClamAV Win.Malware.Genpack-6989317-0
Kaspersky Trojan.Win32.Vilsel.loy
NANO-Antivirus Trojan.Win32.Vilsel.junlqn
SUPERAntiSpyware Trojan.Agent/Gen-Dropper
MicroWorld-eScan Trojan.Generic.4385790
Rising Stealer.Fareit!8.170 (TFE:1:KB9r79iDurJ)
Emsisoft Trojan.Generic.4385790 (B)
F-Secure Trojan.TR/Crypt.ULPM.Gen
DrWeb Trojan.Copyself.102
Zillya Trojan.Vilsel.Win32.13108
TrendMicro WORM_VILSEL.SMB
McAfeeD Real Protect-LS!C21E260E88A8
Trapmine malicious.high.ml.score
CTX exe.trojan.generic
Sophos Troj/VB-LET
SentinelOne Static AI - Malicious PE
Jiangmin Trojan.Vilsel.cji
Webroot W32.Trojan.Gen
Google Detected
Avira TR/Crypt.ULPM.Gen
Antiy-AVL Trojan/Win32.Vilsel
Kingsoft malware.kb.b.999
Gridinsoft Trojan.Win32.Agent.bot!s2
Xcitium TrojWare.Win32.Trojan.Vilsel.loy0@1qq4nk
Microsoft Trojan:Win32/PlugX!rfn
ZoneAlarm Troj/VB-LET
GData Win32.Trojan.Vilsel.B
Varist W32/VB.ADL.gen!Eldorado
AhnLab-V3 Trojan/Win.Vilsel.R614204
VBA32 SScope.Trojan.VB
DeepInstinct MALICIOUS
Screenshots
Name Response Post-Analysis Lookup
No hosts contacted.
IP Address Status Action VT Location
No hosts contacted.
Cuckoo

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