Summary

a83087ae019e8eaca191cd958e2423e3b200d7660b94347d47991558e898ba56

File a83087ae019e8eaca191cd958e2423e3b200d7660b94347d47991558e898ba56

Summary
Download Resubmit sample

Size 89.5KB
Type PE32 executable (GUI) Intel 80386, for MS Windows
MD5 35ae694469fe9237ded45188d61f30db
SHA1 3518f2f6c8153e8db452b61024655924b5641713
SHA256 a83087ae019e8eaca191cd958e2423e3b200d7660b94347d47991558e898ba56
SHA512
f30fb5e4a5a4ee202a39c0e8acbc9110e92829f15a1ff6a4173280e0a2c1a1665d065b0de7270ebdf212084a38c3ee1c5c0ee6968434250e9e0f595ba0b373aa
CRC32 F0C70D30
ssdeep None
Yara
  • 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

6727559

6727560

Feedback

Expecting different results? Send us this analysis and we will inspect it. Click here

Information on Execution

Analysis
Category Started Completed Duration Routing Logs
FILE July 13, 2025, 7:34 p.m. July 13, 2025, 7:41 p.m. 433 seconds internet Show Analyzer Log
Show Cuckoo Log

Analyzer Log

2025-07-09 03:09:37,000 [analyzer] DEBUG: Starting analyzer from: C:\tmpsgyfoe
2025-07-09 03:09:37,015 [analyzer] DEBUG: Pipe server name: \??\PIPE\OtIrRWrwkfWlaFIwYbkqTAPnekZ
2025-07-09 03:09:37,015 [analyzer] DEBUG: Log pipe server name: \??\PIPE\zcjEXPiATvgkLOsn
2025-07-09 03:09:37,342 [analyzer] DEBUG: Started auxiliary module Curtain
2025-07-09 03:09:37,342 [analyzer] DEBUG: Started auxiliary module DbgView
2025-07-09 03:09:37,796 [analyzer] DEBUG: Started auxiliary module Disguise
2025-07-09 03:09:38,000 [analyzer] DEBUG: Loaded monitor into process with pid 516
2025-07-09 03:09:38,000 [analyzer] DEBUG: Started auxiliary module DumpTLSMasterSecrets
2025-07-09 03:09:38,000 [analyzer] DEBUG: Started auxiliary module Human
2025-07-09 03:09:38,000 [analyzer] DEBUG: Started auxiliary module InstallCertificate
2025-07-09 03:09:38,000 [analyzer] DEBUG: Started auxiliary module Reboot
2025-07-09 03:09:38,108 [analyzer] DEBUG: Started auxiliary module RecentFiles
2025-07-09 03:09:38,108 [analyzer] DEBUG: Started auxiliary module Screenshots
2025-07-09 03:09:38,108 [analyzer] DEBUG: Started auxiliary module Sysmon
2025-07-09 03:09:38,108 [analyzer] DEBUG: Started auxiliary module LoadZer0m0n
2025-07-09 03:09:38,280 [lib.api.process] INFO: Successfully executed process from path u'C:\\Users\\ADMINI~1\\AppData\\Local\\Temp\\a83087ae019e8eaca191cd958e2423e3b200d7660b94347d47991558e898ba56.exe' with arguments '' and pid 656
2025-07-09 03:09:38,467 [analyzer] DEBUG: Loaded monitor into process with pid 656
2025-07-09 03:09:38,562 [analyzer] INFO: Added new file to list with pid 656 and path C:\Users\Administrator\AppData\Local\Temp\backup.exe
2025-07-09 03:09:38,578 [analyzer] INFO: Added new file to list with pid 656 and path C:\Users\Administrator\AppData\Local\Temp\0C7910BA-F902-421E-9E69-CF9AEE0DD4D7\backup.exe
2025-07-09 03:09:38,655 [analyzer] INFO: Injected into process with pid 2800 and name ''
2025-07-09 03:09:38,828 [analyzer] DEBUG: Loaded monitor into process with pid 2800
2025-07-09 03:09:38,921 [analyzer] INFO: Added new file to list with pid 656 and path C:\Users\Administrator\AppData\Local\Temp\9C7EA51D-B2B9-4ABB-A82F-1B32707A146E\backup.exe
2025-07-09 03:09:39,000 [analyzer] INFO: Added new file to list with pid 656 and path C:\Users\Administrator\AppData\Local\Temp\hsperfdata_Administrator\backup.exe
2025-07-09 03:09:39,890 [analyzer] INFO: Added new file to list with pid 2800 and path C:\backup.exe
2025-07-09 03:10:07,296 [analyzer] INFO: Analysis timeout hit, terminating analysis.
2025-07-09 03:10:07,828 [analyzer] INFO: Terminating remaining processes before shutdown.
2025-07-09 03:10:07,828 [lib.api.process] INFO: Successfully terminated process with pid 656.
2025-07-09 03:10:07,828 [lib.api.process] INFO: Successfully terminated process with pid 2800.
2025-07-09 03:10:07,858 [analyzer] INFO: Analysis completed.

Cuckoo Log

2025-07-13 19:34:06,413 [cuckoo.core.scheduler] DEBUG: Task #6700425: no machine available yet
2025-07-13 19:34:07,439 [cuckoo.core.scheduler] DEBUG: Task #6700425: no machine available yet
2025-07-13 19:34:08,459 [cuckoo.core.scheduler] DEBUG: Task #6700425: no machine available yet
2025-07-13 19:34:09,481 [cuckoo.core.scheduler] DEBUG: Task #6700425: no machine available yet
2025-07-13 19:34:10,506 [cuckoo.core.scheduler] DEBUG: Task #6700425: no machine available yet
2025-07-13 19:34:11,533 [cuckoo.core.scheduler] DEBUG: Task #6700425: no machine available yet
2025-07-13 19:34:12,555 [cuckoo.core.scheduler] DEBUG: Task #6700425: no machine available yet
2025-07-13 19:34:13,577 [cuckoo.core.scheduler] DEBUG: Task #6700425: no machine available yet
2025-07-13 19:34:14,609 [cuckoo.core.scheduler] DEBUG: Task #6700425: no machine available yet
2025-07-13 19:34:15,650 [cuckoo.core.scheduler] INFO: Task #6700425: acquired machine win7x6413 (label=win7x6413)
2025-07-13 19:34:15,651 [cuckoo.core.resultserver] DEBUG: Now tracking machine 192.168.168.213 for task #6700425
2025-07-13 19:34:16,106 [cuckoo.auxiliary.sniffer] INFO: Started sniffer with PID 39977 (interface=vboxnet0, host=192.168.168.213)
2025-07-13 19:34:16,226 [cuckoo.machinery.virtualbox] DEBUG: Starting vm win7x6413
2025-07-13 19:34:17,192 [cuckoo.machinery.virtualbox] DEBUG: Restoring virtual machine win7x6413 to vmcloak
2025-07-13 19:37:17,803 [cuckoo.core.guest] INFO: Starting analysis #6700425 on guest (id=win7x6413, ip=192.168.168.213)
2025-07-13 19:37:18,808 [cuckoo.core.guest] DEBUG: win7x6413: not ready yet
2025-07-13 19:37:23,832 [cuckoo.core.guest] INFO: Guest is running Cuckoo Agent 0.10 (id=win7x6413, ip=192.168.168.213)
2025-07-13 19:37:23,915 [cuckoo.core.guest] DEBUG: Uploading analyzer to guest (id=win7x6413, ip=192.168.168.213, monitor=latest, size=6660546)
2025-07-13 19:37:25,349 [cuckoo.core.resultserver] DEBUG: Task #6700425: live log analysis.log initialized.
2025-07-13 19:37:26,279 [cuckoo.core.resultserver] DEBUG: Task #6700425 is sending a BSON stream
2025-07-13 19:37:26,722 [cuckoo.core.resultserver] DEBUG: Task #6700425 is sending a BSON stream
2025-07-13 19:37:27,082 [cuckoo.core.resultserver] DEBUG: Task #6700425 is sending a BSON stream
2025-07-13 19:37:27,554 [cuckoo.core.resultserver] DEBUG: Task #6700425: File upload for 'shots/0001.jpg'
2025-07-13 19:37:27,571 [cuckoo.core.resultserver] DEBUG: Task #6700425 uploaded file length: 133545
2025-07-13 19:37:40,049 [cuckoo.core.guest] DEBUG: win7x6413: analysis #6700425 still processing
2025-07-13 19:37:55,151 [cuckoo.core.guest] DEBUG: win7x6413: analysis #6700425 still processing
2025-07-13 19:37:55,909 [cuckoo.core.resultserver] DEBUG: Task #6700425: File upload for 'curtain/1752023407.56.curtain.log'
2025-07-13 19:37:55,913 [cuckoo.core.resultserver] DEBUG: Task #6700425 uploaded file length: 36
2025-07-13 19:37:56,151 [cuckoo.core.resultserver] DEBUG: Task #6700425: File upload for 'sysmon/1752023407.81.sysmon.xml'
2025-07-13 19:37:56,161 [cuckoo.core.resultserver] DEBUG: Task #6700425 uploaded file length: 1386040
2025-07-13 19:37:56,170 [cuckoo.core.resultserver] DEBUG: Task #6700425: File upload for 'files/5feb268c891b28f4_backup.exe'
2025-07-13 19:37:56,173 [cuckoo.core.resultserver] DEBUG: Task #6700425 uploaded file length: 91647
2025-07-13 19:37:56,176 [cuckoo.core.resultserver] DEBUG: Task #6700425: File upload for 'files/8b09326ea1e92f5e_backup.exe'
2025-07-13 19:37:56,179 [cuckoo.core.resultserver] DEBUG: Task #6700425 uploaded file length: 91649
2025-07-13 19:37:56,187 [cuckoo.core.resultserver] DEBUG: Task #6700425: File upload for 'files/fd4279b08a303bce_backup.exe'
2025-07-13 19:37:56,191 [cuckoo.core.resultserver] DEBUG: Task #6700425 uploaded file length: 91647
2025-07-13 19:37:56,466 [cuckoo.core.resultserver] DEBUG: Task #6700425 had connection reset for <Context for LOG>
2025-07-13 19:37:58,165 [cuckoo.core.guest] INFO: win7x6413: analysis completed successfully
2025-07-13 19:37:58,180 [cuckoo.core.plugins] DEBUG: Stopped auxiliary module: Redsocks
2025-07-13 19:37:58,213 [cuckoo.core.plugins] DEBUG: Stopped auxiliary module: Sniffer
2025-07-13 19:37:59,488 [cuckoo.machinery.virtualbox] INFO: Successfully generated memory dump for virtual machine with label win7x6413 to path /srv/cuckoo/cwd/storage/analyses/6700425/memory.dmp
2025-07-13 19:37:59,489 [cuckoo.machinery.virtualbox] DEBUG: Stopping vm win7x6413
2025-07-13 19:41:19,516 [cuckoo.core.resultserver] DEBUG: Stopped tracking machine 192.168.168.213 for task #6700425
2025-07-13 19:41:19,885 [cuckoo.core.scheduler] DEBUG: Released database task #6700425
2025-07-13 19:41:19,936 [cuckoo.core.scheduler] INFO: Task #6700425: analysis procedure completed

Signatures

Yara rule detected for file (1 event)
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: 656
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
length: 24576
protection: 32 (PAGE_EXECUTE_READ)
base_address: 0x003b0000
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'.pdata', u'virtual_size': u'0x00004000'} entropy 7.80467716 description A section with a high entropy has been found
entropy 0.260504201681 description Overall entropy of this PE file is high
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)
Screenshots
Name Response Post-Analysis Lookup
No hosts contacted.
IP Address Status Action VT Location
No hosts contacted.
Cuckoo

We're processing your submission... This could take a few seconds.