MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 ad461bb5f3aecb4d10fadafd90961b2ca8c82f477e933926d2b7d415e6e1aaec. 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
| SHA256 hash: | ad461bb5f3aecb4d10fadafd90961b2ca8c82f477e933926d2b7d415e6e1aaec |
|---|---|
| SHA3-384 hash: | adc536f26b55ba4bff836f0e3567f58330f684ae46c694192f838820fd2f4a9a7e27c08446b633969364dfb78625d29b |
| SHA1 hash: | 6b1091747c91bffff9325709e96249e4a4ddd35e |
| MD5 hash: | 32b5a082583e0315c21df6fb951dd3fd |
| humanhash: | north-yankee-wyoming-uncle |
| File name: | ad461bb5f3aecb4d10fadafd90961b2ca8c82f477e933926d2b7d415e6e1aaec |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 394'168 bytes |
| First seen: | 2025-12-08 15:29:53 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 9dda1a1d1f8a1d13ae0297b47046b26e (65 x Formbook, 48 x GuLoader, 28 x RemcosRAT) |
| ssdeep | 12288:8nPdGPgJhjMrUiQ4oYfYxm/6bMINJBCSm5QoUv:8PdGPOhjMwHxm/6II5CS6Qtv |
| TLSH | T19F8423557B10D9BFC42F0730887B98EB9FFAAD640291835F47846668BC63690DE0E24F |
| 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 |
| dhash icon | c4dadadad2f492c2 (148 x GuLoader, 51 x RemcosRAT, 23 x VIPKeylogger) |
| Reporter |  adrian__luca |
| Tags: | exe GuLoader signed |
Code Signing Certificate
| Organisation: | Shrewd |
|---|---|
| Issuer: | Shrewd |
| Algorithm: | sha256WithRSAEncryption |
| Valid from: | 2025-10-27T02:00:47Z |
| Valid to: | 2026-10-27T02:00:47Z |
| Serial number: | 5ee97d0513c0e8e4a15ad1e34c38eb4a27860c5d |
| Thumbprint Algorithm: | SHA256 |
| Thumbprint: | 9ab723be7c91c11644426525611642bc19abf390dd2b8f9c827caceb713eb1f0 |
| Source: | This information was brought to you by ReversingLabs A1000 Malware Analysis Platform |
Intelligence
File Origin
# of uploads :
1
# of downloads :
99
Origin country :
HUVendor Threat Intelligence
Malware configuration found for:
GuLoader
NSIS
Details
GuLoader
a c2 URL, a useragent string, and a string XOR key
GuLoader
an XOR decryption key and an extracted component
NSIS
extracted archive contents
Malware family:
remcos
ID:
1
File name:
ad461bb5f3aecb4d10fadafd90961b2ca8c82f477e933926d2b7d415e6e1aaec
Verdict:
Malicious activity
Analysis date:
2025-12-09 00:41:24 UTC
Tags:
remcos rat auto-reg
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Guloader
Verdict:
Malicious
Score:
93.3%
Tags:
injection virus blic
Result
Verdict:
Clean
Maliciousness:
Behaviour
Creating a file in the %temp% directory
Creating a window
Searching for the window
Creating a file
Delayed reading of the file
Verdict:
Malicious
File Type:
exe x32
First seen:
2025-11-20T21:19:00Z UTC
Last seen:
2025-12-10T07:04:00Z UTC
Hits:
~1000
Verdict:
Unknown
Score:
99%
Verdict:
Malware
File Type:
PE
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable NSIS Installer PE (Portable Executable) PE File Layout Win 32 Exe x86
Threat name:
Win32.Trojan.GuLoader
Status:
Malicious
First seen:
2025-11-21 01:13:27 UTC
File Type:
PE (Exe)
Extracted files:
20
AV detection:
21 of 36 (58.33%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
cloudeye
Result
Malware family:
remcos
Score:
10/10
Tags:
family:remcos botnet:remotehost discovery persistence rat
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Adds Run key to start application
Legitimate hosting services abused for malware hosting/C2
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Remcos
Remcos family
Malware Config
C2 Extraction:
91.231.222.180:2404
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
ad461bb5f3aecb4d10fadafd90961b2ca8c82f477e933926d2b7d415e6e1aaec
MD5 hash:
32b5a082583e0315c21df6fb951dd3fd
SHA1 hash:
6b1091747c91bffff9325709e96249e4a4ddd35e
SH256 hash:
4b7d17da290f41ebe244827cc295ce7e580da2f7e9f7cc3efc1abc6898e3c9ed
MD5 hash:
1d8f01a83ddd259bc339902c1d33c8f1
SHA1 hash:
9f7806af462c94c39e2ec6cc9c7ad05c44eba04e
SH256 hash:
9111099efe9d5c9b391dc132b2faf0a3851a760d4106d5368e30ac744eb42706
MD5 hash:
4add245d4ba34b04f213409bfe504c07
SHA1 hash:
ef756d6581d70e87d58cc4982e3f4d18e0ea5b09
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
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.
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