Summary

07fcf32f96aba31f_backup.exe

File 07fcf32f96aba31f_backup.exe

Summary
Download Resubmit sample

Size 446.8KB
Type PE32 executable (GUI) Intel 80386 (stripped to external PDB), for MS Windows, UPX compressed
MD5 a0615838994452f69d7a9a0d869b3071
SHA1 c0899d9b3cee1d97f8e320a89cc3f39b4bf52171
SHA256 07fcf32f96aba31fa18cc50a5d5c03f10ca2439f8b741d4d7ad23fcefa904d61
SHA512
47e79035f4ef0118b820fdd935fa988a6105aa1c35e4cd258568f7b1851fa85d0dc3985d6e25b201efe3a506b87556a3312a45b540c357d1bd607e3fa23596f2
CRC32 E4C289C9
ssdeep None
Yara
  • UPX - (no description)
  • suspicious_packer_section - The packer/protector section names/keywords
  • SEH__vba - (no description)
  • escalate_priv - Escalade priviledges
  • win_mutex - Create or check mutex
  • win_registry - Affect system registries
  • win_token - Affect system token

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:6660541

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Information on Execution

Analysis
Category Started Completed Duration Routing Logs
FILE July 8, 2025, 4:31 p.m. July 8, 2025, 4:38 p.m. 451 seconds internet Show Analyzer Log
Show Cuckoo Log

Analyzer Log

2025-07-07 15:09:03,015 [analyzer] DEBUG: Starting analyzer from: C:\tmpwwr_kc
2025-07-07 15:09:03,015 [analyzer] DEBUG: Pipe server name: \??\PIPE\hHTuOxalhAMDOIvONhclCtdHGwPEzt
2025-07-07 15:09:03,015 [analyzer] DEBUG: Log pipe server name: \??\PIPE\FKrEstOktNbZOvIZYThrO
2025-07-07 15:09:03,015 [analyzer] DEBUG: No analysis package specified, trying to detect it automagically.
2025-07-07 15:09:03,015 [analyzer] INFO: Automatically selected analysis package "exe"
2025-07-07 15:09:03,296 [analyzer] DEBUG: Started auxiliary module Curtain
2025-07-07 15:09:03,312 [analyzer] DEBUG: Started auxiliary module DbgView
2025-07-07 15:09:03,765 [analyzer] DEBUG: Started auxiliary module Disguise
2025-07-07 15:09:03,967 [analyzer] DEBUG: Loaded monitor into process with pid 504
2025-07-07 15:09:03,967 [analyzer] DEBUG: Started auxiliary module DumpTLSMasterSecrets
2025-07-07 15:09:03,967 [analyzer] DEBUG: Started auxiliary module Human
2025-07-07 15:09:03,967 [analyzer] DEBUG: Started auxiliary module InstallCertificate
2025-07-07 15:09:03,967 [analyzer] DEBUG: Started auxiliary module Reboot
2025-07-07 15:09:04,046 [analyzer] DEBUG: Started auxiliary module RecentFiles
2025-07-07 15:09:04,046 [analyzer] DEBUG: Started auxiliary module Screenshots
2025-07-07 15:09:04,046 [analyzer] DEBUG: Started auxiliary module Sysmon
2025-07-07 15:09:04,046 [analyzer] DEBUG: Started auxiliary module LoadZer0m0n
2025-07-07 15:09:04,171 [lib.api.process] INFO: Successfully executed process from path u'C:\\Users\\ADMINI~1\\AppData\\Local\\Temp\\07fcf32f96aba31f_backup.exe' with arguments '' and pid 2496
2025-07-07 15:09:04,358 [analyzer] DEBUG: Loaded monitor into process with pid 2496
2025-07-07 15:09:04,421 [analyzer] INFO: Added new file to list with pid 2496 and path C:\Users\Administrator\AppData\Local\Temp\backup.exe
2025-07-07 15:09:04,437 [analyzer] INFO: Added new file to list with pid 2496 and path C:\Users\Administrator\AppData\Local\Temp\0C7910BA-F902-421E-9E69-CF9AEE0DD4D7\backup.exe
2025-07-07 15:09:04,500 [analyzer] INFO: Injected into process with pid 2728 and name ''
2025-07-07 15:09:04,655 [analyzer] DEBUG: Loaded monitor into process with pid 2728
2025-07-07 15:09:04,717 [analyzer] INFO: Added new file to list with pid 2496 and path C:\Users\Administrator\AppData\Local\Temp\9C7EA51D-B2B9-4ABB-A82F-1B32707A146E\backup.exe
2025-07-07 15:09:04,780 [analyzer] INFO: Added new file to list with pid 2496 and path C:\Users\Administrator\AppData\Local\Temp\hsperfdata_Administrator\System Restore.exe
2025-07-07 15:09:05,687 [analyzer] INFO: Added new file to list with pid 2728 and path C:\backup.exe
2025-07-07 15:12:23,171 [analyzer] INFO: Analysis timeout hit, terminating analysis.
2025-07-07 15:12:24,187 [analyzer] INFO: Terminating remaining processes before shutdown.
2025-07-07 15:12:24,187 [lib.api.process] INFO: Successfully terminated process with pid 2496.
2025-07-07 15:12:24,187 [lib.api.process] INFO: Successfully terminated process with pid 2728.
2025-07-07 15:12:24,217 [analyzer] INFO: Analysis completed.

Cuckoo Log

2025-07-08 16:31:00,474 [cuckoo.core.scheduler] INFO: Task #6667545: acquired machine win7x645 (label=win7x645)
2025-07-08 16:31:00,475 [cuckoo.core.resultserver] DEBUG: Now tracking machine 192.168.168.205 for task #6667545
2025-07-08 16:31:00,745 [cuckoo.auxiliary.sniffer] INFO: Started sniffer with PID 525037 (interface=vboxnet0, host=192.168.168.205)
2025-07-08 16:31:00,967 [cuckoo.machinery.virtualbox] DEBUG: Starting vm win7x645
2025-07-08 16:31:01,578 [cuckoo.machinery.virtualbox] DEBUG: Restoring virtual machine win7x645 to vmcloak
2025-07-08 16:32:45,795 [cuckoo.core.guest] INFO: Starting analysis #6667545 on guest (id=win7x645, ip=192.168.168.205)
2025-07-08 16:32:46,801 [cuckoo.core.guest] DEBUG: win7x645: not ready yet
2025-07-08 16:32:51,839 [cuckoo.core.guest] INFO: Guest is running Cuckoo Agent 0.10 (id=win7x645, ip=192.168.168.205)
2025-07-08 16:32:51,925 [cuckoo.core.guest] DEBUG: Uploading analyzer to guest (id=win7x645, ip=192.168.168.205, monitor=latest, size=6660546)
2025-07-08 16:32:53,251 [cuckoo.core.resultserver] DEBUG: Task #6667545: live log analysis.log initialized.
2025-07-08 16:32:54,159 [cuckoo.core.resultserver] DEBUG: Task #6667545 is sending a BSON stream
2025-07-08 16:32:54,535 [cuckoo.core.resultserver] DEBUG: Task #6667545 is sending a BSON stream
2025-07-08 16:32:54,831 [cuckoo.core.resultserver] DEBUG: Task #6667545 is sending a BSON stream
2025-07-08 16:32:55,387 [cuckoo.core.resultserver] DEBUG: Task #6667545: File upload for 'shots/0001.jpg'
2025-07-08 16:32:55,402 [cuckoo.core.resultserver] DEBUG: Task #6667545 uploaded file length: 133457
2025-07-08 16:33:07,957 [cuckoo.core.guest] DEBUG: win7x645: analysis #6667545 still processing
2025-07-08 16:33:23,042 [cuckoo.core.guest] DEBUG: win7x645: analysis #6667545 still processing
2025-07-08 16:33:38,119 [cuckoo.core.guest] DEBUG: win7x645: analysis #6667545 still processing
2025-07-08 16:33:53,348 [cuckoo.core.guest] DEBUG: win7x645: analysis #6667545 still processing
2025-07-08 16:34:08,470 [cuckoo.core.guest] DEBUG: win7x645: analysis #6667545 still processing
2025-07-08 16:34:23,602 [cuckoo.core.guest] DEBUG: win7x645: analysis #6667545 still processing
2025-07-08 16:34:38,757 [cuckoo.core.guest] DEBUG: win7x645: analysis #6667545 still processing
2025-07-08 16:34:53,878 [cuckoo.core.guest] DEBUG: win7x645: analysis #6667545 still processing
2025-07-08 16:35:09,002 [cuckoo.core.guest] DEBUG: win7x645: analysis #6667545 still processing
2025-07-08 16:35:24,114 [cuckoo.core.guest] DEBUG: win7x645: analysis #6667545 still processing
2025-07-08 16:35:39,528 [cuckoo.core.guest] DEBUG: win7x645: analysis #6667545 still processing
2025-07-08 16:35:54,646 [cuckoo.core.guest] DEBUG: win7x645: analysis #6667545 still processing
2025-07-08 16:36:09,796 [cuckoo.core.guest] DEBUG: win7x645: analysis #6667545 still processing
2025-07-08 16:36:13,607 [cuckoo.core.resultserver] DEBUG: Task #6667545: File upload for 'curtain/1751893943.34.curtain.log'
2025-07-08 16:36:13,610 [cuckoo.core.resultserver] DEBUG: Task #6667545 uploaded file length: 36
2025-07-08 16:36:14,374 [cuckoo.core.resultserver] DEBUG: Task #6667545: File upload for 'sysmon/1751893944.11.sysmon.xml'
2025-07-08 16:36:14,450 [cuckoo.core.resultserver] DEBUG: Task #6667545 uploaded file length: 11988590
2025-07-08 16:36:14,474 [cuckoo.core.resultserver] DEBUG: Task #6667545: File upload for 'files/0534b9c7e2d52b79_system restore.exe'
2025-07-08 16:36:14,480 [cuckoo.core.resultserver] DEBUG: Task #6667545: File upload for 'files/a9c534bba20be2f7_backup.exe'
2025-07-08 16:36:14,483 [cuckoo.core.resultserver] DEBUG: Task #6667545 uploaded file length: 457477
2025-07-08 16:36:14,493 [cuckoo.core.resultserver] DEBUG: Task #6667545 uploaded file length: 457479
2025-07-08 16:36:14,504 [cuckoo.core.resultserver] DEBUG: Task #6667545 had connection reset for <Context for LOG>
2025-07-08 16:36:15,835 [cuckoo.core.guest] INFO: win7x645: analysis completed successfully
2025-07-08 16:36:15,861 [cuckoo.core.plugins] DEBUG: Stopped auxiliary module: Redsocks
2025-07-08 16:36:15,891 [cuckoo.core.plugins] DEBUG: Stopped auxiliary module: Sniffer
2025-07-08 16:36:16,754 [cuckoo.machinery.virtualbox] INFO: Successfully generated memory dump for virtual machine with label win7x645 to path /srv/cuckoo/cwd/storage/analyses/6667545/memory.dmp
2025-07-08 16:36:16,761 [cuckoo.machinery.virtualbox] DEBUG: Stopping vm win7x645
2025-07-08 16:38:31,209 [cuckoo.core.resultserver] DEBUG: Stopped tracking machine 192.168.168.205 for task #6667545
2025-07-08 16:38:31,778 [cuckoo.core.scheduler] DEBUG: Released database task #6667545
2025-07-08 16:38:31,814 [cuckoo.core.scheduler] INFO: Task #6667545: analysis procedure completed

Signatures

Yara rules detected for file (7 events)
description (no description) rule UPX
description The packer/protector section names/keywords rule suspicious_packer_section
description (no description) rule SEH__vba
description Escalade priviledges rule escalate_priv
description Create or check mutex rule win_mutex
description Affect system registries rule win_registry
description Affect system token rule win_token
The executable contains unknown PE section names indicative of a packer (could be a false positive) (1 event)
section .imports
Creates executable files on the filesystem (5 events)
file C:\Users\Administrator\AppData\Local\Temp\hsperfdata_Administrator\System Restore.exe
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
Drops an executable to the user AppData folder (1 event)
file C:\Users\Administrator\AppData\Local\Temp\hsperfdata_Administrator\System Restore.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: 2496
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 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 13 AntiVirus engine on IRMA as malicious (13 events)
G Data Antivirus (Windows) Virus: Trojan.Generic.4385790 (Engine A), Win32.Trojan.Vilsel.A (Engine B)
Avast Core Security (Linux) Win32:Vilsel-CT [Trj]
C4S ClamAV (Linux) Win.Malware.Genpack-6989317-0
Trellix (Linux) Generic VB.z trojan
WithSecure (Linux) Trojan.TR/ATRAPS.Gen2
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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