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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ac3840c05f85fdf3172d6982b27f80e9a32b06583ddaf6d475482b294ae3778a. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


GuLoader


Vendor detections: 12


Intelligence 12 IOCs YARA 4 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ac3840c05f85fdf3172d6982b27f80e9a32b06583ddaf6d475482b294ae3778a
SHA3-384 hash: 3a1d0f04b89917a8aa7441938b63dd62ab0abb17076ef6557abfd58a56dd1ccdd77e117fe1b45c523973196f90fbf32d
SHA1 hash: f3e7ed4d0d8dc9ea567d0e85b8655ccffc349e65
MD5 hash: b452327a9048770fe793a57e19c32768
humanhash: saturn-lake-beer-johnny
File name:ac3840c05f85fdf3172d6982b27f80e9a32b06583ddaf6d475482b294ae3778a
Download: download sample
Signature GuLoader
Create hunting rule
File size:238'368 bytes
First seen:2026-07-07 15:34:02 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 6e7f9a29f2c85394521a08b9f31f6275 (326 x GuLoader, 65 x AgentTesla, 63 x RemcosRAT)
ssdeep 6144:EMm4CCBMRt3Tl0+BkGobx0IqgyBJSHl6+:EMwNbjl02kGU0azFp
TLSH T14C3401013170C496E4968571C837AAF91FE4EE21EE95828B23D4BF9E7C3A6D0E41F356
TrID 50.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
10.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
10.5% (.EXE) Win64 Executable (generic) (6522/11/2)
8.1% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.2% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
dhash icon cccebe9696e47998 (3 x GuLoader, 2 x AgentTesla)
Reporter adrian__luca
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:Programmelkonstruktionerne
Issuer:Programmelkonstruktionerne
Algorithm:sha256WithRSAEncryption
Valid from:2026-05-17T00:45:42Z
Valid to:2027-05-17T00:45:42Z
Serial number: 61f687b20593f67eed70eef87216ca7bab35ce7a
Thumbprint Algorithm:SHA256
Thumbprint: 167ff3961ba463026409232c2214306ad1bbaeae5dd451aedd8875f14c324a2e
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
1
# of downloads :
152
Origin country :
HU HU
Vendor Threat Intelligence
Malware configuration found for:
GuLoader NSIS
Details
Link:
https://research.acce.ciphertechsolutions.com/results/f5e0618d-6276-41af-86e2-30113300587a/
Malware family:
n/a
ID:
1
File name:
23062026_1721_DHLShipmentDocument-23062026.exe.tar
Verdict:
Malicious activity
Analysis date:
2026-06-23 17:27:16 UTC
Tags:
arch-exec ip-check evasion stealer
Link:
https://app.any.run/tasks/30d424d5-ca1c-4223-a3ab-00b871ed4e88

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/73788/
Detection(s):
SecuriteInfo.com.Trojan.Inject6.15694.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
91.7%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6a4d3337df078fe3c154236c
Tags:
injection obfusc virus
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Searching for the window
Creating a file in the %AppData% subdirectories
Creating a file in the %temp% subdirectories
Delayed reading of the file
Unauthorized injection to a recently created process
Restart of the analyzed sample
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context anti-debug installer installer installer-heuristic microsoft_visual_cc nsis reconnaissance signed
Link:
https://www.filescan.io/uploads/6a4d302651f8d7a4558b6894/reports/4986094a-4ab5-4cc6-8e0c-69571d3bf8e9/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/ac3840c05f85fdf3172d6982b27f80e9a32b06583ddaf6d475482b294ae3778a
Verdict:
Malicious
File Type:
exe x32
First seen:
2026-06-23T02:32:00Z UTC
Last seen:
2026-07-09T07:16:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/ac3840c05f85fdf3172d6982b27f80e9a32b06583ddaf6d475482b294ae3778a/results?tab=lookup
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/c8c55af4-16ad-438a-abd0-d2e7ce351b01
Score:
68%
Verdict:
Susipicious
File Type:
PE
Link:
https://malprob.io/report/ac3840c05f85fdf3172d6982b27f80e9a32b06583ddaf6d475482b294ae3778a
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ac3840c05f85fdf3172d6982b27f80e9a32b06583ddaf6d475482b294ae3778a/
Threat name:
Win32.Backdoor.Androm
Create hunting rule
Status:
Suspicious
First seen:
2026-06-23 05:18:46 UTC
File Type:
PE (Exe)
Extracted files:
13
AV detection:
21 of 36 (58.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vq4ebqc7qx67gfznngble74a5grswbsyhxnpnvdvjavsssxdo6fa._file
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:guloader adware discovery downloader persistence spyware
Link:
https://tria.ge/reports/260707-vb3y7sas2s/
Behaviour
Checks SCSI registry key(s)
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of NtSetInformationThreadHideFromDebugger
Enumerates connected drives
Loads dropped DLL
Boot or Logon Autostart Execution: Active Setup
Family: Guloader,Cloudeye
Unpacked files
SH256 hash:
ac3840c05f85fdf3172d6982b27f80e9a32b06583ddaf6d475482b294ae3778a
MD5 hash:
b452327a9048770fe793a57e19c32768
SHA1 hash:
f3e7ed4d0d8dc9ea567d0e85b8655ccffc349e65
Link:
https://www.unpac.me/results/5707885b-3beb-45c9-8fc4-6843a58f8c77/
SH256 hash:
acf90ab6f4edc687e94aaf604d05e16e6cfb5e35873783b50c66f307a35c6506
MD5 hash:
6e55a6e7c3fdbd244042eb15cb1ec739
SHA1 hash:
070ea80e2192abc42f358d47b276990b5fa285a9
Link:
https://www.unpac.me/results/5707885b-3beb-45c9-8fc4-6843a58f8c77/
Malware family:
GuLoader
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/ac3840c05f85/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:Detect_NSIS_Nullsoft_Installer
Create hunting rule
Author:Obscurity Labs LLC
Description:Detects NSIS installers by .ndata section + NSIS header string
Rule name:NSIS
Create hunting rule
Author:kevoreilly
Description:NSIS Integrity Check function
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:VECT_Ransomware
Create hunting rule
Author:Mustafa Bakhit
Description:Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Cape
Cape
https://www.capesandbox.com/analysis/73788/

Comments