MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 31ad3cdc1ccc501f7d7ac1d15c4092e834fe9dd9f62d26c076cd4bf86ceeb444. 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 2 File information Comments

SHA256 hash: 31ad3cdc1ccc501f7d7ac1d15c4092e834fe9dd9f62d26c076cd4bf86ceeb444
SHA3-384 hash: 67c42a73d3d85b950ded8b4ce7832f65447b4edb43fd43178aff8a0cb7643c1323b61c10a1d1557aa93a9ef39382111d
SHA1 hash: 269a63c352efb43e71f1cc1d24739e0af4281995
MD5 hash: e88e85a581edead861fcc4971768572d
humanhash: twenty-kilo-princess-lion
File name:Bank copy_details_998643_TT_00.exe
Download: download sample
Signature GuLoader
File size:1'139'224 bytes
First seen:2025-09-26 15:58:58 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 6e7f9a29f2c85394521a08b9f31f6275 (278 x GuLoader, 44 x RemcosRAT, 40 x VIPKeylogger)
ssdeep 24576:ATuizwEqQemDl9cE6UMrAtN+smFX/22opSkG/UYT:ATuiwTmJ9cPUEqot5upSkGB
Threatray 1'499 similar samples on MalwareBazaar
TLSH T1FD35BE813D8CC087E76E4EB3744E84B024A46CB9B7F120DF6B95771904A27E255BEE6C
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10522/11/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
Reporter mazznrz
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:Bekvemme
Issuer:Bekvemme
Algorithm:sha256WithRSAEncryption
Valid from:2025-09-14T00:56:44Z
Valid to:2026-09-14T00:56:44Z
Serial number: 79580998972e4b0e7e203655f292d86244717bef
Thumbprint Algorithm:SHA256
Thumbprint: 6323732a2c3b36ebb4f47b9204326b3bcfa22559bdb1629a5cc2170802907318
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence


File Origin
# of uploads :
1
# of downloads :
146
Origin country :
ID ID
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
Bank copy_details_998643_TT_00.exe
Verdict:
Malicious activity
Analysis date:
2025-09-26 16:02:00 UTC
Tags:
remcos rat auto-reg guloader remote evasion

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
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% directory
Delayed reading of the file
Creating a file
Sending a custom TCP request
Verdict:
Unknown
Threat level:
  2.5/10
Confidence:
100%
Tags:
adaptive-context installer microsoft_visual_cc obfuscated overlay signed
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-09-25T20:57:00Z UTC
Last seen:
2025-09-25T20:57:00Z UTC
Hits:
~10000
Detections:
Trojan-Downloader.Win32.Minix.sb Trojan.Win32.Guloader.sb Trojan.NSIS.Makoob.sbe Trojan.NSIS.Makoob.sba
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable NSIS Installer PE (Portable Executable) PE File Layout Win 32 Exe x86
Threat name:
Win32.Trojan.Znyonm
Status:
Malicious
First seen:
2025-09-26 00:34:31 UTC
File Type:
PE (Exe)
Extracted files:
24
AV detection:
22 of 38 (57.89%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:guloader family:remcos collection discovery downloader persistence rat
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
Drops file in Program Files directory
Drops file in Windows directory
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Adds Run key to start application
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Detected Nirsoft tools
NirSoft MailPassView
NirSoft WebBrowserPassView
Guloader family
Guloader,Cloudeye
Remcos
Remcos family
Malware Config
C2 Extraction:
196.251.118.205:2404
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
31ad3cdc1ccc501f7d7ac1d15c4092e834fe9dd9f62d26c076cd4bf86ceeb444
MD5 hash:
e88e85a581edead861fcc4971768572d
SHA1 hash:
269a63c352efb43e71f1cc1d24739e0af4281995
SH256 hash:
b7823a15e7b1866ba3d77248f750b66505859d264cfc39d8c8c5e812f8ae4a81
MD5 hash:
a1da6788aeaf78ca4ae1dece8019e49d
SHA1 hash:
d770155e6e9aa69223be198c44a8da26a1756d89
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
Author:Obscurity Labs LLC
Description:Detects NSIS installers by .ndata section + NSIS header string
Rule name:PE_Digital_Certificate
Author:albertzsigovits

File information


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

Comments