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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 401883ee8334db650bbd0363335ee46a35492ef1842261341cd1f737f091678a. 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: 15


Intelligence 15 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 401883ee8334db650bbd0363335ee46a35492ef1842261341cd1f737f091678a
SHA3-384 hash: 7c496d711a71cf0d0cd2772422de54dcc60f407a01be8c91e7cb89457404dc8427ad3eb36db87bfaceb4ef0779f86ce1
SHA1 hash: 7e1926679af2e80e1d0adcdcca1c4cb682e284e2
MD5 hash: 6400abb2c3fb21c083cfcd2a67e12376
humanhash: eighteen-double-friend-maine
File name:RFQ_TPS25-233-NRAH-SUPPLY.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:971'344 bytes
First seen:2026-05-20 17:35:21 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f4639a0b3116c2cfc71144b88a929cfd (144 x GuLoader, 57 x Formbook, 46 x VIPKeylogger)
ssdeep 24576:jXFkV+EdQ1pvb9Ct8OTTNUU5WaLoqGcKX:DFkkOQjJsJTeNEoqfKX
TLSH T10C2512707240DA77FC2546B55D0A41A22BD32F3AE584595E33E0B76988B210E9CDFB2F
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 c0e4be8e8ecce871 (1 x VIPKeylogger, 1 x GuLoader)
Reporter TomU
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:forgngeliges
Issuer:forgngeliges
Algorithm:sha256WithRSAEncryption
Valid from:2025-08-21T23:20:02Z
Valid to:2026-08-21T23:20:02Z
Serial number: 0c9ac04374220f2a5da3fca616effaa3533bc2e2
Thumbprint Algorithm:SHA256
Thumbprint: 38947f1a9dd4a0a99a083cf52e3c197f322fa7e50c81f27e0df0fd13899a7894
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
1
# of downloads :
81
Origin country :
CH CH
Vendor Threat Intelligence
Malware configuration found for:
NSIS
Details
NSIS
extracted archive contents
Link:
https://research.acce.ciphertechsolutions.com/results/bfa0cf5f-9532-4f04-aabf-4f1b3d04f558/
Malware family:
guloader
Create hunting rule
ID:
1
File name:
RFQ_TPS25-233-NRAH-SUPPLY.exe
Verdict:
Malicious activity
Analysis date:
2026-05-20 17:40:27 UTC
Tags:
guloader
Link:
https://app.any.run/tasks/149a2f54-22cd-46d3-9c00-fceb63b741fe

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/66833/
Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6a0df20a4159ce11f601d30f
Tags:
obfuscate xtreme virus
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Creating a file in the %temp% subdirectories
Searching for the window
Creating a file
Launching a process
Creating a process with a hidden window
Using the Windows Management Instrumentation requests
Sending a custom TCP request
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
adaptive-context anti-debug guloader installer installer installer-heuristic microsoft_visual_cc nsis reconnaissance signed
Link:
https://www.filescan.io/uploads/6a0df445ed770578157cc929/reports/57f0a3cd-c975-4d5b-a76a-108cb845af13/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/401883ee8334db650bbd0363335ee46a35492ef1842261341cd1f737f091678a
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-09-10T02:30:00Z UTC
Last seen:
2026-05-22T02:55:00Z UTC
Hits:
~1000
Detections:
Trojan.NSIS.Makoob.sbb Trojan.NSIS.Makoob.sba HEUR:Trojan.Win32.Makoob.gen
Link:
https://opentip.kaspersky.com/401883ee8334db650bbd0363335ee46a35492ef1842261341cd1f737f091678a/results?tab=lookup
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/2a00792b-a87c-4fd0-b038-b96f0d96a87d
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/401883ee8334db650bbd0363335ee46a35492ef1842261341cd1f737f091678a
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/401883ee8334db650bbd0363335ee46a35492ef1842261341cd1f737f091678a/
Verdict:
Malicious
Threat:
Family.GULOADER
Link:
https://tip.neiki.dev/file/401883ee8334db650bbd0363335ee46a35492ef1842261341cd1f737f091678a
Threat name:
Win32.Trojan.GuLoader
Create hunting rule
Status:
Malicious
First seen:
2025-09-10 06:07:41 UTC
File Type:
PE (Exe)
Extracted files:
20
AV detection:
24 of 37 (64.86%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=iamih3udgtnwkc55anrtgxxeni2uslxrqqrgcna42h3tp4erm6fa._file
Result
Malware family:
guloader
Create hunting rule
Score:
  10/10
Tags:
family:guloader discovery downloader
Link:
https://tria.ge/reports/260520-v6hazsez4j/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of NtSetInformationThreadHideFromDebugger
Checks computer location settings
Family: Guloader,Cloudeye
Unpacked files
SH256 hash:
401883ee8334db650bbd0363335ee46a35492ef1842261341cd1f737f091678a
MD5 hash:
6400abb2c3fb21c083cfcd2a67e12376
SHA1 hash:
7e1926679af2e80e1d0adcdcca1c4cb682e284e2
Link:
https://www.unpac.me/results/5f7e9079-100c-4ae8-9959-3fcbe4d1624f/
SH256 hash:
23d618a0293c78ce00f7c6e6dd8b8923621da7dd1f63a070163ef4c0ec3033d6
MD5 hash:
192639861e3dc2dc5c08bb8f8c7260d5
SHA1 hash:
58d30e460609e22fa0098bc27d928b689ef9af78
Link:
https://www.unpac.me/results/5f7e9079-100c-4ae8-9959-3fcbe4d1624f/
SH256 hash:
89a82c4849c21dfe765052681e1fad02d2d7b13c8b5075880c52423dca72a912
MD5 hash:
b7d61f3f56abf7b7ff0d4e7da3ad783d
SHA1 hash:
15ab5219c0e77fd9652bc62ff390b8e6846c8e3e
Link:
https://www.unpac.me/results/5f7e9079-100c-4ae8-9959-3fcbe4d1624f/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/401883ee8334db650bbd0363335ee46a35492ef1842261341cd1f737f091678a

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: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.

Malspam

GuLoader

Executable exe 401883ee8334db650bbd0363335ee46a35492ef1842261341cd1f737f091678a

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/66833/

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