MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 253f5d458d58c68d652d8034d533b958226b72ba3f9e120acb2b7a8808aa052e. 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: 10


Intelligence 10 IOCs YARA 1 File information Comments

SHA256 hash: 253f5d458d58c68d652d8034d533b958226b72ba3f9e120acb2b7a8808aa052e
SHA3-384 hash: 426fc20cddbbe4a8c2461ce1388b8dbe0aad741a0e922274f195bf1fcf5631fd3d0bdacc2818f793da0e57511f1ef186
SHA1 hash: 19fdc8a3e63d6ab09cbc0233d243d61eedf8c341
MD5 hash: 595dfd7b53ca113b1caaad0565ce7568
humanhash: nineteen-xray-east-nine
File name:rSC_TR11670000.exe
Download: download sample
Signature GuLoader
File size:1'384'568 bytes
First seen:2023-03-12 13:39:04 UTC
Last seen:2023-03-15 14:05:03 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash b34f154ec913d2d2c435cbd644e91687 (535 x GuLoader, 110 x RemcosRAT, 80 x EpsilonStealer)
ssdeep 24576:ms7aBdTshE58ef4lfAGI6o8JBTmqibFj0y9whWW3dWTHX5Gx:Z7aTtfGor6ZJBTmTZ/C73dWTJGx
Threatray 328 similar samples on MalwareBazaar
TLSH T117552321F2139867D0454BB009279E6A7B3A3D52F0E5D7373398B3473E37289AF5A189
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
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) (4505/5/1)
File icon (PE):PE icon
dhash icon c0eae8eef0e8e8e0 (8 x GuLoader)
Reporter FXOLabs
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:
Issuer:
Algorithm:sha256WithRSAEncryption
Valid from:2023-02-18T11:19:34Z
Valid to:2026-02-17T11:19:34Z
Serial number: 7d2db63e729ebc96dbef23e96b27c53f2e1534cf
Thumbprint Algorithm:SHA256
Thumbprint: 1ee5478b2eb33dec770d396d8b9226a18f701994f0a9d3a1fde66397a6188e24
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence


File Origin
# of uploads :
4
# of downloads :
215
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
rSC_TR11670000.exe
Verdict:
Malicious activity
Analysis date:
2023-03-12 13:39:40 UTC
Tags:
n/a

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
Creating a file in the %temp% directory
Creating a file in the %AppData% subdirectories
Creating a file
Delayed reading of the file
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
guloader overlay packed shell32.dll
Result
Threat name:
GuLoader, Lokibot
Detection:
malicious
Classification:
rans.troj.evad.spyw
Score:
100 / 100
Signature
Antivirus detection for URL or domain
Found potential ransomware demand text
Multi AV Scanner detection for submitted file
Sample is not signed and drops a device driver
Snort IDS alert for network traffic
Tries to detect Any.run
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected GuLoader
Yara detected Lokibot
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.GuLoader
Status:
Malicious
First seen:
2023-03-12 02:45:26 UTC
File Type:
PE (Exe)
Extracted files:
25
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Behaviour
Enumerates physical storage devices
Loads dropped DLL
Unpacked files
SH256 hash:
a632d74332b3f08f834c732a103dafeb09a540823a2217ca7f49159755e8f1d7
MD5 hash:
75ed96254fbf894e42058062b4b4f0d1
SHA1 hash:
996503f1383b49021eb3427bc28d13b5bbd11977
SH256 hash:
253f5d458d58c68d652d8034d533b958226b72ba3f9e120acb2b7a8808aa052e
MD5 hash:
595dfd7b53ca113b1caaad0565ce7568
SHA1 hash:
19fdc8a3e63d6ab09cbc0233d243d61eedf8c341
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:PE_Digital_Certificate
Author:albertzsigovits

File information


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

Malspam

GuLoader

Executable exe 253f5d458d58c68d652d8034d533b958226b72ba3f9e120acb2b7a8808aa052e

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments