Summary

8b09326ea1e92f5e_backup.exe

File 8b09326ea1e92f5e_backup.exe

Summary
Download Resubmit sample

Size 89.5KB
Type PE32 executable (GUI) Intel 80386, for MS Windows
MD5 9af23201e35dbeb3a46e99b31e9fff4e
SHA1 a143a2ee22b1d5117e04717f7e79361a1d194dbf
SHA256 8b09326ea1e92f5e3455837726e2761c05aaf9e3a3b691444e7850518b735a4f
SHA512
31b40ce56e1d2e82bf64e4bcf9797dfbbab9a6e9ea86ad760056f8e925348347758c767d2d8d7737cbc2f88897cb5a68eb0748db03c125cae7c44a9eb2281482
CRC32 797B8842
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:6700425

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Information on Execution

Analysis
Category Started Completed Duration Routing Logs
FILE July 17, 2025, 4:20 p.m. July 17, 2025, 4:29 p.m. 535 seconds internet Show Analyzer Log
Show Cuckoo Log

Analyzer Log

2025-07-13 19:42:04,000 [analyzer] DEBUG: Starting analyzer from: C:\tmpriinqn
2025-07-13 19:42:04,015 [analyzer] DEBUG: Pipe server name: \??\PIPE\OhTvllZgvktjMSOSDxCBouVyvHmQm
2025-07-13 19:42:04,015 [analyzer] DEBUG: Log pipe server name: \??\PIPE\IoeTDqezKDuBdmsRfBgFyx
2025-07-13 19:42:04,015 [analyzer] DEBUG: No analysis package specified, trying to detect it automagically.
2025-07-13 19:42:04,015 [analyzer] INFO: Automatically selected analysis package "exe"
2025-07-13 19:42:04,375 [analyzer] DEBUG: Started auxiliary module Curtain
2025-07-13 19:42:04,375 [analyzer] DEBUG: Started auxiliary module DbgView
2025-07-13 19:42:04,858 [analyzer] DEBUG: Started auxiliary module Disguise
2025-07-13 19:42:05,062 [analyzer] DEBUG: Loaded monitor into process with pid 512
2025-07-13 19:42:05,062 [analyzer] DEBUG: Started auxiliary module DumpTLSMasterSecrets
2025-07-13 19:42:05,062 [analyzer] DEBUG: Started auxiliary module Human
2025-07-13 19:42:05,062 [analyzer] DEBUG: Started auxiliary module InstallCertificate
2025-07-13 19:42:05,078 [analyzer] DEBUG: Started auxiliary module Reboot
2025-07-13 19:42:05,140 [analyzer] DEBUG: Started auxiliary module RecentFiles
2025-07-13 19:42:05,140 [analyzer] DEBUG: Started auxiliary module Screenshots
2025-07-13 19:42:05,155 [analyzer] DEBUG: Started auxiliary module Sysmon
2025-07-13 19:42:05,155 [analyzer] DEBUG: Started auxiliary module LoadZer0m0n
2025-07-13 19:42:05,280 [lib.api.process] INFO: Successfully executed process from path u'C:\\Users\\ADMINI~1\\AppData\\Local\\Temp\\8b09326ea1e92f5e_backup.exe' with arguments '' and pid 2364
2025-07-13 19:42:05,467 [analyzer] DEBUG: Loaded monitor into process with pid 2364
2025-07-13 19:42:05,530 [analyzer] INFO: Added new file to list with pid 2364 and path C:\Users\Administrator\AppData\Local\Temp\backup.exe
2025-07-13 19:42:05,546 [analyzer] INFO: Added new file to list with pid 2364 and path C:\Users\Administrator\AppData\Local\Temp\0C7910BA-F902-421E-9E69-CF9AEE0DD4D7\backup.exe
2025-07-13 19:42:05,608 [analyzer] INFO: Injected into process with pid 1844 and name ''
2025-07-13 19:42:05,765 [analyzer] DEBUG: Loaded monitor into process with pid 1844
2025-07-13 19:42:05,828 [analyzer] INFO: Added new file to list with pid 2364 and path C:\Users\Administrator\AppData\Local\Temp\9C7EA51D-B2B9-4ABB-A82F-1B32707A146E\backup.exe
2025-07-13 19:42:05,890 [analyzer] INFO: Added new file to list with pid 2364 and path C:\Users\Administrator\AppData\Local\Temp\hsperfdata_Administrator\backup.exe
2025-07-13 19:42:06,796 [analyzer] INFO: Added new file to list with pid 1844 and path C:\System Restore.exe
2025-07-13 19:45:24,296 [analyzer] INFO: Analysis timeout hit, terminating analysis.
2025-07-13 19:45:25,296 [analyzer] INFO: Terminating remaining processes before shutdown.
2025-07-13 19:45:25,296 [lib.api.process] INFO: Successfully terminated process with pid 2364.
2025-07-13 19:45:25,312 [lib.api.process] INFO: Successfully terminated process with pid 1844.
2025-07-13 19:45:25,328 [analyzer] INFO: Analysis completed.

Cuckoo Log

2025-07-17 16:20:33,031 [cuckoo.core.scheduler] INFO: Task #6727560: acquired machine win7x6426 (label=win7x6426)
2025-07-17 16:20:33,032 [cuckoo.core.resultserver] DEBUG: Now tracking machine 192.168.168.226 for task #6727560
2025-07-17 16:20:33,583 [cuckoo.auxiliary.sniffer] INFO: Started sniffer with PID 591851 (interface=vboxnet0, host=192.168.168.226)
2025-07-17 16:20:33,725 [cuckoo.machinery.virtualbox] DEBUG: Starting vm win7x6426
2025-07-17 16:20:35,002 [cuckoo.machinery.virtualbox] DEBUG: Restoring virtual machine win7x6426 to vmcloak
2025-07-17 16:23:30,648 [cuckoo.core.guest] INFO: Starting analysis #6727560 on guest (id=win7x6426, ip=192.168.168.226)
2025-07-17 16:23:31,653 [cuckoo.core.guest] DEBUG: win7x6426: not ready yet
2025-07-17 16:23:36,674 [cuckoo.core.guest] INFO: Guest is running Cuckoo Agent 0.10 (id=win7x6426, ip=192.168.168.226)
2025-07-17 16:23:36,747 [cuckoo.core.guest] DEBUG: Uploading analyzer to guest (id=win7x6426, ip=192.168.168.226, monitor=latest, size=6660546)
2025-07-17 16:23:37,992 [cuckoo.core.resultserver] DEBUG: Task #6727560: live log analysis.log initialized.
2025-07-17 16:23:39,190 [cuckoo.core.resultserver] DEBUG: Task #6727560 is sending a BSON stream
2025-07-17 16:23:39,411 [cuckoo.core.resultserver] DEBUG: Task #6727560 is sending a BSON stream
2025-07-17 16:23:39,693 [cuckoo.core.resultserver] DEBUG: Task #6727560 is sending a BSON stream
2025-07-17 16:23:40,256 [cuckoo.core.resultserver] DEBUG: Task #6727560: File upload for 'shots/0001.jpg'
2025-07-17 16:23:40,271 [cuckoo.core.resultserver] DEBUG: Task #6727560 uploaded file length: 133374
2025-07-17 16:23:53,153 [cuckoo.core.guest] DEBUG: win7x6426: analysis #6727560 still processing
2025-07-17 16:24:08,252 [cuckoo.core.guest] DEBUG: win7x6426: analysis #6727560 still processing
2025-07-17 16:24:23,333 [cuckoo.core.guest] DEBUG: win7x6426: analysis #6727560 still processing
2025-07-17 16:24:38,725 [cuckoo.core.guest] DEBUG: win7x6426: analysis #6727560 still processing
2025-07-17 16:24:53,975 [cuckoo.core.guest] DEBUG: win7x6426: analysis #6727560 still processing
2025-07-17 16:25:09,351 [cuckoo.core.guest] DEBUG: win7x6426: analysis #6727560 still processing
2025-07-17 16:25:24,547 [cuckoo.core.guest] DEBUG: win7x6426: analysis #6727560 still processing
2025-07-17 16:25:39,827 [cuckoo.core.guest] DEBUG: win7x6426: analysis #6727560 still processing
2025-07-17 16:25:55,039 [cuckoo.core.guest] DEBUG: win7x6426: analysis #6727560 still processing
2025-07-17 16:26:10,355 [cuckoo.core.guest] DEBUG: win7x6426: analysis #6727560 still processing
2025-07-17 16:26:25,570 [cuckoo.core.guest] DEBUG: win7x6426: analysis #6727560 still processing
2025-07-17 16:26:40,926 [cuckoo.core.guest] DEBUG: win7x6426: analysis #6727560 still processing
2025-07-17 16:26:56,220 [cuckoo.core.guest] DEBUG: win7x6426: analysis #6727560 still processing
2025-07-17 16:26:58,508 [cuckoo.core.resultserver] DEBUG: Task #6727560: File upload for 'curtain/1752428724.5.curtain.log'
2025-07-17 16:26:58,511 [cuckoo.core.resultserver] DEBUG: Task #6727560 uploaded file length: 36
2025-07-17 16:26:59,205 [cuckoo.core.resultserver] DEBUG: Task #6727560: File upload for 'sysmon/1752428725.19.sysmon.xml'
2025-07-17 16:26:59,315 [cuckoo.core.resultserver] DEBUG: Task #6727560 uploaded file length: 9396618
2025-07-17 16:26:59,346 [cuckoo.core.resultserver] DEBUG: Task #6727560: File upload for 'files/af2bac7f3642ca60_backup.exe'
2025-07-17 16:26:59,348 [cuckoo.core.resultserver] DEBUG: Task #6727560: File upload for 'files/61df8108904d7d48_system restore.exe'
2025-07-17 16:26:59,350 [cuckoo.core.resultserver] DEBUG: Task #6727560 uploaded file length: 91651
2025-07-17 16:26:59,351 [cuckoo.core.resultserver] DEBUG: Task #6727560 uploaded file length: 91653
2025-07-17 16:26:59,357 [cuckoo.core.resultserver] DEBUG: Task #6727560 had connection reset for <Context for LOG>
2025-07-17 16:27:02,292 [cuckoo.core.guest] INFO: win7x6426: analysis completed successfully
2025-07-17 16:27:02,318 [cuckoo.core.plugins] DEBUG: Stopped auxiliary module: Redsocks
2025-07-17 16:27:02,340 [cuckoo.core.plugins] DEBUG: Stopped auxiliary module: Sniffer
2025-07-17 16:27:03,948 [cuckoo.machinery.virtualbox] INFO: Successfully generated memory dump for virtual machine with label win7x6426 to path /srv/cuckoo/cwd/storage/analyses/6727560/memory.dmp
2025-07-17 16:27:03,950 [cuckoo.machinery.virtualbox] DEBUG: Stopping vm win7x6426
2025-07-17 16:29:27,399 [cuckoo.core.resultserver] DEBUG: Stopped tracking machine 192.168.168.226 for task #6727560
2025-07-17 16:29:28,191 [cuckoo.core.scheduler] DEBUG: Released database task #6727560
2025-07-17 16:29:28,242 [cuckoo.core.scheduler] INFO: Task #6727560: 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:\Users\Administrator\AppData\Local\Temp\hsperfdata_Administrator\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:\System Restore.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: 2364
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
length: 24576
protection: 32 (PAGE_EXECUTE_READ)
base_address: 0x004d0000
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 12 AntiVirus engine on IRMA as malicious (12 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
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
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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