Summary

c4d8a432e8d267fd95be61a5c9006c5ebb243f5f651c7057f3048c8b07d2e57f

File c4d8a432e8d267fd95be61a5c9006c5ebb243f5f651c7057f3048c8b07d2e57f

Summary
Download Resubmit sample

Size 88.2KB
Type PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed
MD5 5b4f826e98d33c7dcac3f1dce011a29f
SHA1 608a945c956157f57138149cece7c01ae3cc4871
SHA256 c4d8a432e8d267fd95be61a5c9006c5ebb243f5f651c7057f3048c8b07d2e57f
SHA512
3fac5682bbd92542de60da96281fb7d0870cd24134ceae74911c253b8487385ca062e677aeb9a3191d3ae5ac37a4125b6b15cc93aff006375bc9b05c699462a1
CRC32 41E91506
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

6732401

6732402

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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. 76 seconds internet Show Analyzer Log
Show Cuckoo Log

Analyzer Log

2025-07-09 07:34:07,015 [analyzer] DEBUG: Starting analyzer from: C:\tmpblqbwr
2025-07-09 07:34:07,030 [analyzer] DEBUG: Pipe server name: \??\PIPE\VyPzxrXBXZUCKQHpGMzBKNmVvV
2025-07-09 07:34:07,030 [analyzer] DEBUG: Log pipe server name: \??\PIPE\JUrzireBivvIBFWM
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 07:34:07,717 [analyzer] DEBUG: Started auxiliary module Disguise
2025-07-09 07:34:07,921 [analyzer] DEBUG: Loaded monitor into process with pid 504
2025-07-09 07:34:07,921 [analyzer] DEBUG: Started auxiliary module DumpTLSMasterSecrets
2025-07-09 07:34:07,921 [analyzer] DEBUG: Started auxiliary module Human
2025-07-09 07:34:07,921 [analyzer] DEBUG: Started auxiliary module InstallCertificate
2025-07-09 07:34:07,937 [analyzer] DEBUG: Started auxiliary module Reboot
2025-07-09 07:34:08,092 [analyzer] DEBUG: Started auxiliary module RecentFiles
2025-07-09 07:34:08,092 [analyzer] DEBUG: Started auxiliary module Screenshots
2025-07-09 07:34:08,092 [analyzer] DEBUG: Started auxiliary module Sysmon
2025-07-09 07:34:08,092 [analyzer] DEBUG: Started auxiliary module LoadZer0m0n
2025-07-09 07:34:08,233 [lib.api.process] INFO: Successfully executed process from path u'C:\\Users\\ADMINI~1\\AppData\\Local\\Temp\\c4d8a432e8d267fd95be61a5c9006c5ebb243f5f651c7057f3048c8b07d2e57f.exe' with arguments '' and pid 1648
2025-07-09 07:34:08,437 [analyzer] DEBUG: Loaded monitor into process with pid 1648
2025-07-09 07:34:08,530 [analyzer] INFO: Added new file to list with pid 1648 and path C:\Users\Administrator\AppData\Local\Temp\backup.exe
2025-07-09 07:34:08,546 [analyzer] INFO: Added new file to list with pid 1648 and path C:\Users\Administrator\AppData\Local\Temp\0C7910BA-F902-421E-9E69-CF9AEE0DD4D7\backup.exe
2025-07-09 07:34:08,640 [analyzer] INFO: Injected into process with pid 3032 and name ''
2025-07-09 07:34:08,842 [analyzer] DEBUG: Loaded monitor into process with pid 3032
2025-07-09 07:34:08,921 [analyzer] INFO: Added new file to list with pid 1648 and path C:\Users\Administrator\AppData\Local\Temp\9C7EA51D-B2B9-4ABB-A82F-1B32707A146E\System Restore.exe
2025-07-09 07:34:09,030 [analyzer] INFO: Added new file to list with pid 1648 and path C:\Users\Administrator\AppData\Local\Temp\hsperfdata_Administrator\data.exe
2025-07-09 07:34:09,921 [analyzer] INFO: Added new file to list with pid 3032 and path C:\backup.exe
2025-07-09 07:34:37,233 [analyzer] INFO: Analysis timeout hit, terminating analysis.
2025-07-09 07:34:37,687 [analyzer] INFO: Terminating remaining processes before shutdown.
2025-07-09 07:34:37,687 [lib.api.process] INFO: Successfully terminated process with pid 1648.
2025-07-09 07:34:37,687 [lib.api.process] INFO: Successfully terminated process with pid 3032.
2025-07-09 07:34:37,717 [analyzer] INFO: Analysis completed.

Cuckoo Log

2025-07-14 13:11:38,540 [cuckoo.core.scheduler] INFO: Task #6705116: acquired machine win7x6418 (label=win7x6418)
2025-07-14 13:11:38,540 [cuckoo.core.resultserver] DEBUG: Now tracking machine 192.168.168.218 for task #6705116
2025-07-14 13:11:38,938 [cuckoo.auxiliary.sniffer] INFO: Started sniffer with PID 1730337 (interface=vboxnet0, host=192.168.168.218)
2025-07-14 13:11:39,012 [cuckoo.machinery.virtualbox] DEBUG: Starting vm win7x6418
2025-07-14 13:11:40,148 [cuckoo.machinery.virtualbox] DEBUG: Restoring virtual machine win7x6418 to vmcloak
2025-07-14 13:11:52,730 [cuckoo.core.guest] INFO: Starting analysis #6705116 on guest (id=win7x6418, ip=192.168.168.218)
2025-07-14 13:11:53,738 [cuckoo.core.guest] DEBUG: win7x6418: not ready yet
2025-07-14 13:11:58,885 [cuckoo.core.guest] INFO: Guest is running Cuckoo Agent 0.10 (id=win7x6418, ip=192.168.168.218)
2025-07-14 13:11:58,982 [cuckoo.core.guest] DEBUG: Uploading analyzer to guest (id=win7x6418, ip=192.168.168.218, monitor=latest, size=6660546)
2025-07-14 13:12:00,192 [cuckoo.core.resultserver] DEBUG: Task #6705116: live log analysis.log initialized.
2025-07-14 13:12:01,069 [cuckoo.core.resultserver] DEBUG: Task #6705116 is sending a BSON stream
2025-07-14 13:12:01,569 [cuckoo.core.resultserver] DEBUG: Task #6705116 is sending a BSON stream
2025-07-14 13:12:01,959 [cuckoo.core.resultserver] DEBUG: Task #6705116 is sending a BSON stream
2025-07-14 13:12:02,597 [cuckoo.core.resultserver] DEBUG: Task #6705116: File upload for 'shots/0001.jpg'
2025-07-14 13:12:02,608 [cuckoo.core.resultserver] DEBUG: Task #6705116 uploaded file length: 133433
2025-07-14 13:12:14,830 [cuckoo.core.guest] DEBUG: win7x6418: analysis #6705116 still processing
2025-07-14 13:12:29,931 [cuckoo.core.guest] DEBUG: win7x6418: analysis #6705116 still processing
2025-07-14 13:12:30,713 [cuckoo.core.resultserver] DEBUG: Task #6705116: File upload for 'curtain/1752039277.5.curtain.log'
2025-07-14 13:12:30,717 [cuckoo.core.resultserver] DEBUG: Task #6705116 uploaded file length: 36
2025-07-14 13:12:30,897 [cuckoo.core.resultserver] DEBUG: Task #6705116: File upload for 'sysmon/1752039277.67.sysmon.xml'
2025-07-14 13:12:30,905 [cuckoo.core.resultserver] DEBUG: Task #6705116 uploaded file length: 508298
2025-07-14 13:12:30,914 [cuckoo.core.resultserver] DEBUG: Task #6705116: File upload for 'files/7aedcf8e586fa034_backup.exe'
2025-07-14 13:12:30,918 [cuckoo.core.resultserver] DEBUG: Task #6705116 uploaded file length: 90326
2025-07-14 13:12:30,922 [cuckoo.core.resultserver] DEBUG: Task #6705116: File upload for 'files/8db88b8ba2d529b8_data.exe'
2025-07-14 13:12:30,928 [cuckoo.core.resultserver] DEBUG: Task #6705116 uploaded file length: 90326
2025-07-14 13:12:30,937 [cuckoo.core.resultserver] DEBUG: Task #6705116: File upload for 'files/1be1de044d223bbd_backup.exe'
2025-07-14 13:12:30,945 [cuckoo.core.resultserver] DEBUG: Task #6705116 uploaded file length: 90328
2025-07-14 13:12:31,611 [cuckoo.core.resultserver] DEBUG: Task #6705116 had connection reset for <Context for LOG>
2025-07-14 13:12:32,950 [cuckoo.core.guest] INFO: win7x6418: analysis completed successfully
2025-07-14 13:12:32,965 [cuckoo.core.plugins] DEBUG: Stopped auxiliary module: Redsocks
2025-07-14 13:12:32,997 [cuckoo.core.plugins] DEBUG: Stopped auxiliary module: Sniffer
2025-07-14 13:12:34,475 [cuckoo.machinery.virtualbox] INFO: Successfully generated memory dump for virtual machine with label win7x6418 to path /srv/cuckoo/cwd/storage/analyses/6705116/memory.dmp
2025-07-14 13:12:34,477 [cuckoo.machinery.virtualbox] DEBUG: Stopping vm win7x6418
2025-07-14 13:12:54,011 [cuckoo.core.resultserver] DEBUG: Stopped tracking machine 192.168.168.218 for task #6705116
2025-07-14 13:12:54,387 [cuckoo.core.scheduler] DEBUG: Released database task #6705116
2025-07-14 13:12:54,405 [cuckoo.core.scheduler] INFO: Task #6705116: 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:\Users\Administrator\AppData\Local\Temp\hsperfdata_Administrator\data.exe
file C:\backup.exe
file C:\Users\Administrator\AppData\Local\Temp\9C7EA51D-B2B9-4ABB-A82F-1B32707A146E\System Restore.exe
file C:\Users\Administrator\AppData\Local\Temp\backup.exe
Drops an executable to the user AppData folder (2 events)
file C:\Users\Administrator\AppData\Local\Temp\0C7910BA-F902-421E-9E69-CF9AEE0DD4D7\backup.exe
file C:\Users\Administrator\AppData\Local\Temp\hsperfdata_Administrator\data.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: 1648
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
length: 24576
protection: 32 (PAGE_EXECUTE_READ)
base_address: 0x003e0000
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)
Screenshots
Name Response Post-Analysis Lookup
No hosts contacted.
IP Address Status Action VT Location
No hosts contacted.
Cuckoo

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