MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3c609fde5e771ccb3cff10b9e5fcc216848d94f7065eaeda2075b12ed44d2be7. 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: 12


Intelligence 12 IOCs YARA 2 File information Comments 1

SHA256 hash: 3c609fde5e771ccb3cff10b9e5fcc216848d94f7065eaeda2075b12ed44d2be7
SHA3-384 hash: 860e9d711336f0d9d48f0f39d0d1296a1ae88797b2312c3a3eefefdfb1c45d277b56263c67580b2bcde26ab8a32afb13
SHA1 hash: 119dedc1768e7971dc2aa621fd06787e9ba4e62a
MD5 hash: 11918dee7fc7db0c4b2c9bee96e9f9d9
humanhash: twenty-oregon-fish-november
File name:11918dee7fc7db0c4b2c9bee96e9f9d9
Download: download sample
Signature GuLoader
File size:374'208 bytes
First seen:2023-08-02 18:41:18 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash b78ecf47c0a3e24a6f4af114e2d1f5de (304 x GuLoader, 23 x Formbook, 21 x RemcosRAT)
ssdeep 6144:UBebKFxUGBNCRKSUmGRuVdToB8RT40E9hKVzpht/OiYbU+KLR/ElhKtFGCd:1KFxcRDGRudsBgSS1nIU+KSlgFld
TLSH T11584CD26099B547FCC8177B0797FC25483EF7C91FE11B5F652482A2BA93D2EE1A460C8
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 d679cc969e99d32b (2 x GuLoader)
Reporter zbetcheckin
Tags:32 exe GuLoader signed

Code Signing Certificate

Organisation:
Issuer:
Algorithm:sha256WithRSAEncryption
Valid from:2023-07-25T10:47:37Z
Valid to:2026-07-24T10:47:37Z
Serial number: 6a881787db350a4bd9992803f8e359b8bacb0a3e
Thumbprint Algorithm:SHA256
Thumbprint: 87e28f8b62d5b609773c00373d362ab9a71a98532a0604784b010bdb04a098fa
Source:This information was brought to you by ReversingLabs A1000 Malware Analysis Platform

Intelligence


File Origin
# of uploads :
1
# of downloads :
343
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
guloader
ID:
1
File name:
REQUEST FOR QUOTATION.xls
Verdict:
Malicious activity
Analysis date:
2023-08-02 15:38:11 UTC
Tags:
opendir exploit cve-2017-11882 loader guloader

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
Creating a file in the %temp% subdirectories
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control lolbin overlay packed shell32
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:
troj.evad.spyw
Score:
100 / 100
Signature
Antivirus detection for URL or domain
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
Tries to detect Any.run
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
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
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Guloader
Status:
Malicious
First seen:
2023-08-02 16:28:19 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
cloudeye
Result
Malware family:
guloader
Score:
  10/10
Tags:
family:guloader downloader
Behaviour
Enumerates physical storage devices
Loads dropped DLL
Guloader,Cloudeye
Unpacked files
SH256 hash:
fa4ab1d6f79fd677433a31ada7806373a789d34328da46ccb0449bbf347bd73e
MD5 hash:
3f176d1ee13b0d7d6bd92e1c7a0b9bae
SHA1 hash:
fe582246792774c2c9dd15639ffa0aca90d6fd0b
SH256 hash:
3c609fde5e771ccb3cff10b9e5fcc216848d94f7065eaeda2075b12ed44d2be7
MD5 hash:
11918dee7fc7db0c4b2c9bee96e9f9d9
SHA1 hash:
119dedc1768e7971dc2aa621fd06787e9ba4e62a
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:Ins_NSIS_Buer_Nov_2020_1
Author:Arkbird_SOLG
Description:Detect NSIS installer used for Buer loader
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.

Web download

GuLoader

Executable exe 3c609fde5e771ccb3cff10b9e5fcc216848d94f7065eaeda2075b12ed44d2be7

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
zbet commented on 2023-08-02 18:41:19 UTC

url : hxxp://192.3.189.179/400/Regasm.exe