MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 db2fc817af6b9f6d4a4b1ad1a837d9e56b8f8be9ee52266eded777d1f4b5a28b. 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: 8


Intelligence 8 IOCs YARA 1 File information Comments

SHA256 hash: db2fc817af6b9f6d4a4b1ad1a837d9e56b8f8be9ee52266eded777d1f4b5a28b
SHA3-384 hash: 84101c2090f81b0b13fd10f881f5c708393fdced020c29754db0b80d990f437d483b2926bdf8b341eabce1283ce165bb
SHA1 hash: 95d8f6d7a8c5096b15b8ce9cf2aa44992251445e
MD5 hash: cca85b09c94d8eff9e7f898f873f88ae
humanhash: butter-jersey-king-sink
File name:db2fc817af6b9f6d4a4b1ad1a837d9e56b8f8be9ee52266eded777d1f4b5a28b
Download: download sample
Signature GuLoader
File size:344'336 bytes
First seen:2022-12-07 14:02:08 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash b34f154ec913d2d2c435cbd644e91687 (533 x GuLoader, 110 x RemcosRAT, 80 x EpsilonStealer)
ssdeep 6144:eVGdx6xDFvo/u/8ITnWHMJWjYc7CedZckqjSGAjTJ:qXvoY8ICHTWePck0zAjTJ
Threatray 18'758 similar samples on MalwareBazaar
TLSH T1BF749E919110F16AD33188BED11F18F68E6AFC65E205783756513FEB3AB5E818123F2B
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)
Reporter adrian__luca
Tags:exe GuLoader signed

Code Signing Certificate

Organisation:
Issuer:
Algorithm:sha256WithRSAEncryption
Valid from:2022-04-30T09:42:22Z
Valid to:2025-04-29T09:42:22Z
Serial number: 2b16fbffaa159331
Thumbprint Algorithm:SHA256
Thumbprint: 65cd78ca1ce35e7757604e4da30e353b157e2699f6c34037e2aada3de432cacf
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence


File Origin
# of uploads :
1
# of downloads :
188
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
db2fc817af6b9f6d4a4b1ad1a837d9e56b8f8be9ee52266eded777d1f4b5a28b
Verdict:
No threats detected
Analysis date:
2022-12-07 14:01:52 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Creating a file in the %AppData% subdirectories
Sending a custom TCP request
Creating a file in the %temp% subdirectories
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
overlay packed shell32.dll
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
GuLoader
Detection:
malicious
Classification:
evad.troj
Score:
64 / 100
Signature
Multi AV Scanner detection for submitted file
Tries to detect Any.run
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected GuLoader
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Leonem
Status:
Malicious
First seen:
2022-11-17 18:17:40 UTC
File Type:
PE (Exe)
Extracted files:
5
AV detection:
15 of 26 (57.69%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Windows directory
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Checks QEMU agent file
Loads dropped DLL
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
a632d74332b3f08f834c732a103dafeb09a540823a2217ca7f49159755e8f1d7
MD5 hash:
75ed96254fbf894e42058062b4b4f0d1
SHA1 hash:
996503f1383b49021eb3427bc28d13b5bbd11977
SH256 hash:
db2fc817af6b9f6d4a4b1ad1a837d9e56b8f8be9ee52266eded777d1f4b5a28b
MD5 hash:
cca85b09c94d8eff9e7f898f873f88ae
SHA1 hash:
95d8f6d7a8c5096b15b8ce9cf2aa44992251445e
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:cobalt_strike_tmp01925d3f
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com

File information


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

Comments