Summary

e52ea899694b37fc_backup.exe

File e52ea899694b37fc_backup.exe

Summary
Download Resubmit sample

Size 90.6KB
Type PE32 executable (GUI) Intel 80386, for MS Windows
MD5 9e354d1409442ecba1f6e3d06c3760b8
SHA1 7c81563b1e93045e476943a1e1494b68441da13a
SHA256 e52ea899694b37fcb96edec4ef9578f293d604416caba440dc72c31868430620
SHA512
d8de71a9ac8a3cfcfc85270d0ddb0d47a0dafd55294e3dc4b4885206dc4026cdf96d32d0411a1f318c4b529889cca4a5f462339604a9bc72af85fc2376735ecd
CRC32 4E36658A
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:6700400

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Information on Execution

Analysis
Category Started Completed Duration Routing Logs
FILE July 17, 2025, 4:16 p.m. July 17, 2025, 4:24 p.m. 516 seconds internet Show Analyzer Log
Show Cuckoo Log

Analyzer Log

2025-07-13 19:36:50,015 [analyzer] DEBUG: Starting analyzer from: C:\tmpht3fil
2025-07-13 19:36:50,015 [analyzer] DEBUG: Pipe server name: \??\PIPE\pxXNXqvZbtwTtoSZp
2025-07-13 19:36:50,015 [analyzer] DEBUG: Log pipe server name: \??\PIPE\KgEuoYOPrgCZsrSoTJqKfqJ
2025-07-13 19:36:50,030 [analyzer] DEBUG: No analysis package specified, trying to detect it automagically.
2025-07-13 19:36:50,030 [analyzer] INFO: Automatically selected analysis package "exe"
2025-07-13 19:36:50,312 [analyzer] DEBUG: Started auxiliary module Curtain
2025-07-13 19:36:50,312 [analyzer] DEBUG: Started auxiliary module DbgView
2025-07-13 19:36:50,842 [analyzer] DEBUG: Started auxiliary module Disguise
2025-07-13 19:36:51,078 [analyzer] DEBUG: Loaded monitor into process with pid 504
2025-07-13 19:36:51,078 [analyzer] DEBUG: Started auxiliary module DumpTLSMasterSecrets
2025-07-13 19:36:51,078 [analyzer] DEBUG: Started auxiliary module Human
2025-07-13 19:36:51,078 [analyzer] DEBUG: Started auxiliary module InstallCertificate
2025-07-13 19:36:51,078 [analyzer] DEBUG: Started auxiliary module Reboot
2025-07-13 19:36:51,155 [analyzer] DEBUG: Started auxiliary module RecentFiles
2025-07-13 19:36:51,171 [analyzer] DEBUG: Started auxiliary module Screenshots
2025-07-13 19:36:51,171 [analyzer] DEBUG: Started auxiliary module Sysmon
2025-07-13 19:36:51,171 [analyzer] DEBUG: Started auxiliary module LoadZer0m0n
2025-07-13 19:36:51,328 [lib.api.process] INFO: Successfully executed process from path u'C:\\Users\\ADMINI~1\\AppData\\Local\\Temp\\e52ea899694b37fc_backup.exe' with arguments '' and pid 2888
2025-07-13 19:36:51,546 [analyzer] DEBUG: Loaded monitor into process with pid 2888
2025-07-13 19:36:51,592 [analyzer] INFO: Added new file to list with pid 2888 and path C:\Users\Administrator\AppData\Local\Temp\backup.exe
2025-07-13 19:36:51,608 [analyzer] INFO: Added new file to list with pid 2888 and path C:\Users\Administrator\AppData\Local\Temp\0C7910BA-F902-421E-9E69-CF9AEE0DD4D7\backup.exe
2025-07-13 19:36:51,671 [analyzer] INFO: Injected into process with pid 2148 and name ''
2025-07-13 19:36:51,842 [analyzer] DEBUG: Loaded monitor into process with pid 2148
2025-07-13 19:36:51,905 [analyzer] INFO: Added new file to list with pid 2888 and path C:\Users\Administrator\AppData\Local\Temp\9C7EA51D-B2B9-4ABB-A82F-1B32707A146E\backup.exe
2025-07-13 19:36:51,983 [analyzer] INFO: Added new file to list with pid 2888 and path C:\Users\Administrator\AppData\Local\Temp\hsperfdata_Administrator\data.exe
2025-07-13 19:36:52,890 [analyzer] INFO: Added new file to list with pid 2148 and path C:\backup.exe
2025-07-13 19:40:10,328 [analyzer] INFO: Analysis timeout hit, terminating analysis.
2025-07-13 19:40:11,437 [analyzer] INFO: Terminating remaining processes before shutdown.
2025-07-13 19:40:11,437 [lib.api.process] INFO: Successfully terminated process with pid 2888.
2025-07-13 19:40:11,437 [lib.api.process] INFO: Successfully terminated process with pid 2148.
2025-07-13 19:40:11,467 [analyzer] INFO: Analysis completed.

Cuckoo Log

2025-07-17 16:16:04,235 [cuckoo.core.scheduler] INFO: Task #6727542: acquired machine win7x6411 (label=win7x6411)
2025-07-17 16:16:04,244 [cuckoo.core.resultserver] DEBUG: Now tracking machine 192.168.168.211 for task #6727542
2025-07-17 16:16:05,137 [cuckoo.auxiliary.sniffer] INFO: Started sniffer with PID 584742 (interface=vboxnet0, host=192.168.168.211)
2025-07-17 16:16:05,467 [cuckoo.machinery.virtualbox] DEBUG: Starting vm win7x6411
2025-07-17 16:16:06,790 [cuckoo.machinery.virtualbox] DEBUG: Restoring virtual machine win7x6411 to vmcloak
2025-07-17 16:18:15,611 [cuckoo.core.guest] INFO: Starting analysis #6727542 on guest (id=win7x6411, ip=192.168.168.211)
2025-07-17 16:18:16,617 [cuckoo.core.guest] DEBUG: win7x6411: not ready yet
2025-07-17 16:18:21,643 [cuckoo.core.guest] INFO: Guest is running Cuckoo Agent 0.10 (id=win7x6411, ip=192.168.168.211)
2025-07-17 16:18:21,728 [cuckoo.core.guest] DEBUG: Uploading analyzer to guest (id=win7x6411, ip=192.168.168.211, monitor=latest, size=6660546)
2025-07-17 16:18:22,926 [cuckoo.core.resultserver] DEBUG: Task #6727542: live log analysis.log initialized.
2025-07-17 16:18:23,944 [cuckoo.core.resultserver] DEBUG: Task #6727542 is sending a BSON stream
2025-07-17 16:18:24,396 [cuckoo.core.resultserver] DEBUG: Task #6727542 is sending a BSON stream
2025-07-17 16:18:24,787 [cuckoo.core.resultserver] DEBUG: Task #6727542 is sending a BSON stream
2025-07-17 16:18:25,400 [cuckoo.core.resultserver] DEBUG: Task #6727542: File upload for 'shots/0001.jpg'
2025-07-17 16:18:25,412 [cuckoo.core.resultserver] DEBUG: Task #6727542 uploaded file length: 133463
2025-07-17 16:18:37,614 [cuckoo.core.guest] DEBUG: win7x6411: analysis #6727542 still processing
2025-07-17 16:18:52,776 [cuckoo.core.guest] DEBUG: win7x6411: analysis #6727542 still processing
2025-07-17 16:19:07,890 [cuckoo.core.guest] DEBUG: win7x6411: analysis #6727542 still processing
2025-07-17 16:19:23,082 [cuckoo.core.guest] DEBUG: win7x6411: analysis #6727542 still processing
2025-07-17 16:19:38,405 [cuckoo.core.guest] DEBUG: win7x6411: analysis #6727542 still processing
2025-07-17 16:19:53,917 [cuckoo.core.guest] DEBUG: win7x6411: analysis #6727542 still processing
2025-07-17 16:20:09,307 [cuckoo.core.guest] DEBUG: win7x6411: analysis #6727542 still processing
2025-07-17 16:20:24,821 [cuckoo.core.guest] DEBUG: win7x6411: analysis #6727542 still processing
2025-07-17 16:20:40,026 [cuckoo.core.guest] DEBUG: win7x6411: analysis #6727542 still processing
2025-07-17 16:20:55,192 [cuckoo.core.guest] DEBUG: win7x6411: analysis #6727542 still processing
2025-07-17 16:21:10,870 [cuckoo.core.guest] DEBUG: win7x6411: analysis #6727542 still processing
2025-07-17 16:21:26,424 [cuckoo.core.guest] DEBUG: win7x6411: analysis #6727542 still processing
2025-07-17 16:21:41,782 [cuckoo.core.guest] DEBUG: win7x6411: analysis #6727542 still processing
2025-07-17 16:21:43,448 [cuckoo.core.resultserver] DEBUG: Task #6727542: File upload for 'curtain/1752428410.52.curtain.log'
2025-07-17 16:21:43,468 [cuckoo.core.resultserver] DEBUG: Task #6727542 uploaded file length: 36
2025-07-17 16:21:44,292 [cuckoo.core.resultserver] DEBUG: Task #6727542: File upload for 'sysmon/1752428411.36.sysmon.xml'
2025-07-17 16:21:44,376 [cuckoo.core.resultserver] DEBUG: Task #6727542 uploaded file length: 11564202
2025-07-17 16:21:44,398 [cuckoo.core.resultserver] DEBUG: Task #6727542: File upload for 'files/d8964a13e5bb6745_backup.exe'
2025-07-17 16:21:44,418 [cuckoo.core.resultserver] DEBUG: Task #6727542: File upload for 'files/82fe658f5ec05f5e_backup.exe'
2025-07-17 16:21:44,437 [cuckoo.core.resultserver] DEBUG: Task #6727542 uploaded file length: 92734
2025-07-17 16:21:44,459 [cuckoo.core.resultserver] DEBUG: Task #6727542 had connection reset for <Context for LOG>
2025-07-17 16:21:44,461 [cuckoo.core.resultserver] DEBUG: Task #6727542 uploaded file length: 92736
2025-07-17 16:21:44,819 [cuckoo.core.guest] INFO: win7x6411: analysis completed successfully
2025-07-17 16:21:44,834 [cuckoo.core.plugins] DEBUG: Stopped auxiliary module: Redsocks
2025-07-17 16:21:44,863 [cuckoo.core.plugins] DEBUG: Stopped auxiliary module: Sniffer
2025-07-17 16:21:46,516 [cuckoo.machinery.virtualbox] INFO: Successfully generated memory dump for virtual machine with label win7x6411 to path /srv/cuckoo/cwd/storage/analyses/6727542/memory.dmp
2025-07-17 16:21:46,519 [cuckoo.machinery.virtualbox] DEBUG: Stopping vm win7x6411
2025-07-17 16:24:39,320 [cuckoo.core.resultserver] DEBUG: Stopped tracking machine 192.168.168.211 for task #6727542
2025-07-17 16:24:39,805 [cuckoo.core.scheduler] DEBUG: Released database task #6727542
2025-07-17 16:24:39,821 [cuckoo.core.scheduler] INFO: Task #6727542: 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\data.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\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: 2888
stack_dep_bypass: 0
stack_pivoted: 0
heap_dep_bypass: 1
length: 24576
protection: 32 (PAGE_EXECUTE_READ)
base_address: 0x003f0000
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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