Summary

7942290d8a21f653_backup.exe

File 7942290d8a21f653_backup.exe

Summary
Download Resubmit sample

Size 122.8KB
Type PE32 executable (GUI) Intel 80386, for MS Windows
MD5 5d873b1ef7e49d8a665de7921e16f7e1
SHA1 89c22d11981f6e3742aa4edc2f580b229b100471
SHA256 7942290d8a21f6531879f0a5f7f53b64c2c28705ef76b7b164278450e7c6b385
SHA512
4d64d8da08a46775b5baa182bd6a357717470ab7805286240be7373a47ea1ac1c3419295368c4aaafcacb104ee0580db2165b99722ce8a778c85938e4e226e4d
CRC32 8E9577E5
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

Parent_Task_ID:6660511

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Information on Execution

Analysis
Category Started Completed Duration Routing Logs
FILE July 8, 2025, 4:21 p.m. July 8, 2025, 4:27 p.m. 391 seconds internet Show Analyzer Log
Show Cuckoo Log

Analyzer Log

2025-07-07 15:02:27,015 [analyzer] DEBUG: Starting analyzer from: C:\tmpqqrt4a
2025-07-07 15:02:27,015 [analyzer] DEBUG: Pipe server name: \??\PIPE\xiAdOmNgTZrQgjEqAlrf
2025-07-07 15:02:27,015 [analyzer] DEBUG: Log pipe server name: \??\PIPE\InycdbiHFgdEXRlZvYLKLjgEDtS
2025-07-07 15:02:27,015 [analyzer] DEBUG: No analysis package specified, trying to detect it automagically.
2025-07-07 15:02:27,015 [analyzer] INFO: Automatically selected analysis package "exe"
2025-07-07 15:02:27,296 [analyzer] DEBUG: Started auxiliary module Curtain
2025-07-07 15:02:27,312 [analyzer] DEBUG: Started auxiliary module DbgView
2025-07-07 15:02:27,842 [analyzer] DEBUG: Started auxiliary module Disguise
2025-07-07 15:02:28,062 [analyzer] DEBUG: Loaded monitor into process with pid 504
2025-07-07 15:02:28,062 [analyzer] DEBUG: Started auxiliary module DumpTLSMasterSecrets
2025-07-07 15:02:28,062 [analyzer] DEBUG: Started auxiliary module Human
2025-07-07 15:02:28,062 [analyzer] DEBUG: Started auxiliary module InstallCertificate
2025-07-07 15:02:28,062 [analyzer] DEBUG: Started auxiliary module Reboot
2025-07-07 15:02:28,140 [analyzer] DEBUG: Started auxiliary module RecentFiles
2025-07-07 15:02:28,140 [analyzer] DEBUG: Started auxiliary module Screenshots
2025-07-07 15:02:28,140 [analyzer] DEBUG: Started auxiliary module Sysmon
2025-07-07 15:02:28,140 [analyzer] DEBUG: Started auxiliary module LoadZer0m0n
2025-07-07 15:02:28,280 [lib.api.process] INFO: Successfully executed process from path u'C:\\Users\\ADMINI~1\\AppData\\Local\\Temp\\7942290d8a21f653_backup.exe' with arguments '' and pid 2508
2025-07-07 15:02:28,515 [analyzer] DEBUG: Loaded monitor into process with pid 2508
2025-07-07 15:02:28,578 [analyzer] INFO: Added new file to list with pid 2508 and path C:\Users\Administrator\AppData\Local\Temp\backup.exe
2025-07-07 15:02:28,578 [analyzer] INFO: Added new file to list with pid 2508 and path C:\Users\Administrator\AppData\Local\Temp\0C7910BA-F902-421E-9E69-CF9AEE0DD4D7\backup.exe
2025-07-07 15:02:28,655 [analyzer] INFO: Injected into process with pid 216 and name ''
2025-07-07 15:02:28,812 [analyzer] DEBUG: Loaded monitor into process with pid 216
2025-07-07 15:02:28,875 [analyzer] INFO: Added new file to list with pid 2508 and path C:\Users\Administrator\AppData\Local\Temp\9C7EA51D-B2B9-4ABB-A82F-1B32707A146E\backup.exe
2025-07-07 15:02:28,953 [analyzer] INFO: Added new file to list with pid 2508 and path C:\Users\Administrator\AppData\Local\Temp\hsperfdata_Administrator\backup.exe
2025-07-07 15:02:29,858 [analyzer] INFO: Added new file to list with pid 216 and path C:\backup.exe
2025-07-07 15:05:47,280 [analyzer] INFO: Analysis timeout hit, terminating analysis.
2025-07-07 15:05:48,405 [analyzer] INFO: Terminating remaining processes before shutdown.
2025-07-07 15:05:48,405 [lib.api.process] INFO: Successfully terminated process with pid 2508.
2025-07-07 15:05:48,405 [lib.api.process] INFO: Successfully terminated process with pid 216.
2025-07-07 15:05:48,421 [analyzer] INFO: Analysis completed.

Cuckoo Log

2025-07-08 16:21:15,521 [cuckoo.core.scheduler] INFO: Task #6667495: acquired machine win7x6428 (label=win7x6428)
2025-07-08 16:21:15,522 [cuckoo.core.resultserver] DEBUG: Now tracking machine 192.168.168.228 for task #6667495
2025-07-08 16:21:15,872 [cuckoo.auxiliary.sniffer] INFO: Started sniffer with PID 510151 (interface=vboxnet0, host=192.168.168.228)
2025-07-08 16:21:15,993 [cuckoo.machinery.virtualbox] DEBUG: Starting vm win7x6428
2025-07-08 16:21:16,636 [cuckoo.machinery.virtualbox] DEBUG: Restoring virtual machine win7x6428 to vmcloak
2025-07-08 16:22:12,408 [cuckoo.core.guest] INFO: Starting analysis #6667495 on guest (id=win7x6428, ip=192.168.168.228)
2025-07-08 16:22:13,413 [cuckoo.core.guest] DEBUG: win7x6428: not ready yet
2025-07-08 16:22:18,468 [cuckoo.core.guest] INFO: Guest is running Cuckoo Agent 0.10 (id=win7x6428, ip=192.168.168.228)
2025-07-08 16:22:18,535 [cuckoo.core.guest] DEBUG: Uploading analyzer to guest (id=win7x6428, ip=192.168.168.228, monitor=latest, size=6660546)
2025-07-08 16:22:19,768 [cuckoo.core.resultserver] DEBUG: Task #6667495: live log analysis.log initialized.
2025-07-08 16:22:20,778 [cuckoo.core.resultserver] DEBUG: Task #6667495 is sending a BSON stream
2025-07-08 16:22:21,216 [cuckoo.core.resultserver] DEBUG: Task #6667495 is sending a BSON stream
2025-07-08 16:22:21,563 [cuckoo.core.resultserver] DEBUG: Task #6667495 is sending a BSON stream
2025-07-08 16:22:22,027 [cuckoo.core.resultserver] DEBUG: Task #6667495: File upload for 'shots/0001.jpg'
2025-07-08 16:22:22,039 [cuckoo.core.resultserver] DEBUG: Task #6667495 uploaded file length: 133432
2025-07-08 16:22:34,503 [cuckoo.core.guest] DEBUG: win7x6428: analysis #6667495 still processing
2025-07-08 16:22:49,632 [cuckoo.core.guest] DEBUG: win7x6428: analysis #6667495 still processing
2025-07-08 16:23:04,800 [cuckoo.core.guest] DEBUG: win7x6428: analysis #6667495 still processing
2025-07-08 16:23:19,957 [cuckoo.core.guest] DEBUG: win7x6428: analysis #6667495 still processing
2025-07-08 16:23:36,225 [cuckoo.core.guest] DEBUG: win7x6428: analysis #6667495 still processing
2025-07-08 16:23:51,444 [cuckoo.core.guest] DEBUG: win7x6428: analysis #6667495 still processing
2025-07-08 16:24:06,600 [cuckoo.core.guest] DEBUG: win7x6428: analysis #6667495 still processing
2025-07-08 16:24:22,012 [cuckoo.core.guest] DEBUG: win7x6428: analysis #6667495 still processing
2025-07-08 16:24:37,282 [cuckoo.core.guest] DEBUG: win7x6428: analysis #6667495 still processing
2025-07-08 16:24:52,605 [cuckoo.core.guest] DEBUG: win7x6428: analysis #6667495 still processing
2025-07-08 16:25:07,732 [cuckoo.core.guest] DEBUG: win7x6428: analysis #6667495 still processing
2025-07-08 16:25:23,136 [cuckoo.core.guest] DEBUG: win7x6428: analysis #6667495 still processing
2025-07-08 16:25:38,400 [cuckoo.core.guest] DEBUG: win7x6428: analysis #6667495 still processing
2025-07-08 16:25:40,240 [cuckoo.core.resultserver] DEBUG: Task #6667495: File upload for 'curtain/1751893547.45.curtain.log'
2025-07-08 16:25:40,244 [cuckoo.core.resultserver] DEBUG: Task #6667495 uploaded file length: 36
2025-07-08 16:25:41,100 [cuckoo.core.resultserver] DEBUG: Task #6667495: File upload for 'sysmon/1751893548.31.sysmon.xml'
2025-07-08 16:25:41,184 [cuckoo.core.resultserver] DEBUG: Task #6667495 uploaded file length: 13580708
2025-07-08 16:25:41,411 [cuckoo.core.guest] INFO: win7x6428: analysis completed successfully
2025-07-08 16:25:41,421 [cuckoo.core.plugins] DEBUG: Stopped auxiliary module: Redsocks
2025-07-08 16:25:41,442 [cuckoo.core.plugins] DEBUG: Stopped auxiliary module: Sniffer
2025-07-08 16:25:41,722 [cuckoo.core.resultserver] DEBUG: Task #6667495 had connection reset for <Context for LOG>
2025-07-08 16:25:41,724 [cuckoo.core.resultserver] DEBUG: Task #6667495: File upload for 'files/0437528916ecd89d_backup.exe'
2025-07-08 16:25:41,727 [cuckoo.core.resultserver] DEBUG: Task #6667495 uploaded file length: 125754
2025-07-08 16:25:41,729 [cuckoo.core.resultserver] DEBUG: Task #6667495: File upload for 'files/c0e72492fc193eb1_backup.exe'
2025-07-08 16:25:41,731 [cuckoo.core.resultserver] DEBUG: Task #6667495 uploaded file length: 125756
2025-07-08 16:25:42,245 [cuckoo.machinery.virtualbox] INFO: Successfully generated memory dump for virtual machine with label win7x6428 to path /srv/cuckoo/cwd/storage/analyses/6667495/memory.dmp
2025-07-08 16:25:42,247 [cuckoo.machinery.virtualbox] DEBUG: Stopping vm win7x6428
2025-07-08 16:27:46,783 [cuckoo.core.resultserver] DEBUG: Stopped tracking machine 192.168.168.228 for task #6667495
2025-07-08 16:27:47,213 [cuckoo.core.scheduler] DEBUG: Released database task #6667495
2025-07-08 16:27:47,227 [cuckoo.core.scheduler] INFO: Task #6667495: 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: 2508
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
length: 24576
protection: 32 (PAGE_EXECUTE_READ)
base_address: 0x00510000
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 13 AntiVirus engine on IRMA as malicious (13 events)
G Data Antivirus (Windows) Virus: Trojan.GenericKD.76484443 (Engine A), Win32.Trojan.Vilsel.B (Engine B)
Avast Core Security (Linux) Win32:Evo-gen [Trj]
C4S ClamAV (Linux) Win.Malware.Genpack-6989317-0
Trellix (Linux) Generic VB.z trojan
WithSecure (Linux) Trojan.TR/Crypt.ULPM.Gen
eScan Antivirus (Linux) Trojan.GenericKD.76484443(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.GenericKD.76484443
Kaspersky Standard (Windows) Trojan.Win32.Vilsel.loy
Emsisoft Commandline Scanner (Windows) Trojan.GenericKD.76484443 (B)
Screenshots
Name Response Post-Analysis Lookup
No hosts contacted.
IP Address Status Action VT Location
No hosts contacted.
Cuckoo

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