MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 36e66d557dd0ad8c7dc8f32ea4b8e43b4a19ee4b7603fdab534e42a4319ab3c7. 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: 14


Intelligence 14 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 36e66d557dd0ad8c7dc8f32ea4b8e43b4a19ee4b7603fdab534e42a4319ab3c7
SHA3-384 hash: 3cd584006ed76d3598ad98c44a5175624e291810a29edfb90768bf222d1cd2c6b3a3f674446077a148e7961242a370cc
SHA1 hash: d330fafdc3ee8d4f71afe584e0e5a2e684d2455e
MD5 hash: b5c3d5a05b6a26846c725c88c10a2035
humanhash: indigo-papa-stream-ceiling
File name:RQ_0985_7948T.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:500'000 bytes
First seen:2025-10-10 06:51:04 UTC
Last seen:2025-11-06 10:13:07 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b34f154ec913d2d2c435cbd644e91687 (557 x GuLoader, 120 x RemcosRAT, 82 x EpsilonStealer)
ssdeep 12288:d2A57QLALKv8B/7uEZXTnmG0mx4teMXSzspdoDD:dbQLLYiYX7B01kMXosXoDD
TLSH T127B402226DC351BDD69140B9704A63627FC61EF8561A2A7F0348F71E37E722273A326D
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 Anonymous
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:Colletic
Issuer:Colletic
Algorithm:sha256WithRSAEncryption
Valid from:2025-08-13T07:03:28Z
Valid to:2026-08-13T07:03:28Z
Serial number: 2603c138a7dcaf242c3b159d05cccf7d4e43c1e3
Thumbprint Algorithm:SHA256
Thumbprint: 9517d114abe51d88cfde049f107b321f3c9057e0febbdbb6b043acfe4842cdbd
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence

File Origin
# of uploads :
2
# of downloads :
132
Origin country :
PL PL
Vendor Threat Intelligence
Malware family:
remcos
Create hunting rule
ID:
1
File name:
a9d08b05789fb2dafdc99ad683d02ea9dd9814079cc70cd92e6c9a824dddd8ca.zip
Verdict:
Malicious activity
Analysis date:
2025-10-10 03:15:52 UTC
Tags:
arch-exec rat remcos
Link:
https://app.any.run/tasks/ad1111b0-5692-4d17-9419-dc0e27e139b5

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/32211/
Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68e87a678b7b147cc4b67c33
Tags:
obfuscate xtreme virus nsis
Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Creating a window
Searching for the window
Creating a file
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
adaptive-context installer microsoft_visual_cc obfuscated overlay signed similar-threat
Link:
https://www.filescan.io/uploads/68e8baf871883144ef2ffa62/reports/3493d778-caed-4b61-8ffe-c2fa7bf1d9e7/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/36e66d557dd0ad8c7dc8f32ea4b8e43b4a19ee4b7603fdab534e42a4319ab3c7
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-10-09T22:23:00Z UTC
Last seen:
2025-10-12T04:57:00Z UTC
Hits:
~1000
Detections:
VHO:Backdoor.Win32.Remcos.gen UDS:DangerousObject.Multi.Generic Trojan.NSIS.Makoob.sba HEUR:Backdoor.Win32.Remcos.gen
Link:
https://opentip.kaspersky.com/36e66d557dd0ad8c7dc8f32ea4b8e43b4a19ee4b7603fdab534e42a4319ab3c7/results?tab=lookup
Malware family:
Unlabeled
Create hunting rule
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/454e1019-5ffb-4c88-8c07-21affd608422
Score:
95%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/36e66d557dd0ad8c7dc8f32ea4b8e43b4a19ee4b7603fdab534e42a4319ab3c7
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable NSIS Installer PE (Portable Executable) PE File Layout Win 32 Exe x86
Link:
https://app.malva.re/file/b5c3d5a05b6a26846c725c88c10a2035
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/36e66d557dd0ad8c7dc8f32ea4b8e43b4a19ee4b7603fdab534e42a4319ab3c7/
Threat name:
Win32.Trojan.GuLoader
Create hunting rule
Status:
Malicious
First seen:
2025-10-10 02:55:38 UTC
File Type:
PE (Exe)
Extracted files:
12
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=g3tg2vl52cwyy7oi6mxkjohehnfbt3sloyb73k2tjzbkimm2wpdq._file
Result
Malware family:
remcos
Create hunting rule
Score:
  10/10
Tags:
family:remcos adware collection discovery execution persistence ransomware rat spyware
Link:
https://tria.ge/reports/251010-jpg34shl6z/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: PowerShell
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Accesses Microsoft Outlook accounts
Badlisted process makes network request
Legitimate hosting services abused for malware hosting/C2
Looks up external IP address via web service
Checks computer location settings
Detected Nirsoft tools
NirSoft MailPassView
NirSoft WebBrowserPassView
Remcos
Remcos family
Malware Config
C2 Extraction:
161.248.179.208:2404
Verdict:
Unknown
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/3f972591-285f-4dc7-8052-25936ff6bce2
Unpacked files
SH256 hash:
36e66d557dd0ad8c7dc8f32ea4b8e43b4a19ee4b7603fdab534e42a4319ab3c7
MD5 hash:
b5c3d5a05b6a26846c725c88c10a2035
SHA1 hash:
d330fafdc3ee8d4f71afe584e0e5a2e684d2455e
Link:
https://www.unpac.me/results/901488c5-6a55-4d11-b833-c82ee24f82d3/
SH256 hash:
dd1a9a601f668006624d2bc9fd3a8e6827416053f5c0908a7c07f506bb27f64f
MD5 hash:
87b6ce39391a90c959c088bc23e33f90
SHA1 hash:
08dc2eaaeea4a1b1f4125bffafc354f824302902
Link:
https://www.unpac.me/results/901488c5-6a55-4d11-b833-c82ee24f82d3/
SH256 hash:
a632d74332b3f08f834c732a103dafeb09a540823a2217ca7f49159755e8f1d7
MD5 hash:
75ed96254fbf894e42058062b4b4f0d1
SHA1 hash:
996503f1383b49021eb3427bc28d13b5bbd11977
Link:
https://www.unpac.me/results/901488c5-6a55-4d11-b833-c82ee24f82d3/
Malware family:
Remcos
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/36e66d557dd0/report/overview.html
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/36e66d557dd0ad8c7dc8f32ea4b8e43b4a19ee4b7603fdab534e42a4319ab3c7

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

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/32211/

Comments