MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4f6b4079a3f1b56421cbca34d112ba6a867ff8a6bd706010bfe931ac6d635361. 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: 7


Intelligence 7 IOCs YARA File information Comments

SHA256 hash: 4f6b4079a3f1b56421cbca34d112ba6a867ff8a6bd706010bfe931ac6d635361
SHA3-384 hash: 367df315a9790049cd61eb18a943a69945b7cf806980abfd2c51c53516361d286555be65ffa76b027ae9c27907c3682b
SHA1 hash: 37968cade61e54ce0c4ec24e83c35fadd583019f
MD5 hash: 196b3c910b8d74c5916029f6eb037d5d
humanhash: north-april-bravo-winter
File name:196b3c910b8d74c5916029f6eb037d5d.exe
Download: download sample
Signature GuLoader
File size:147'456 bytes
First seen:2021-06-09 06:47:55 UTC
Last seen:2021-06-09 09:46:16 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 9b8686288ab82fdbf8ede30bc55c83b7 (4 x GuLoader)
ssdeep 1536:IFXJHkDZ+2HdXrK5feyoSP+6a3bQQ6GaXSt4lY5YGw12IjqQRsk:CJiUEXrKIIPcl6o4lBGw12IuMsk
Threatray 684 similar samples on MalwareBazaar
TLSH 6AE33E21BA21E123E44590B4FE55D7DEA4013F721E9F9D03368D3F5A503E3CBAAB1A16
Reporter abuse_ch
Tags:exe GuLoader


Avatar
abuse_ch
GuLoader payload URL:
https://mail.gryph.com.au/main/Loader_XclRlqyg39.bin
https://tough-guy.xyz/back/Loader_XclRlqyg39.bin

Intelligence


File Origin
# of uploads :
2
# of downloads :
288
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
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:
rans.troj.evad
Score:
92 / 100
Signature
C2 URLs / IPs found in malware configuration
Contains functionality to detect hardware virtualization (CPUID execution measurement)
Detected RDTSC dummy instruction sequence (likely for instruction hammering)
Found malware configuration
Found potential dummy code loops (likely to delay analysis)
Multi AV Scanner detection for submitted file
Potential malicious icon found
Tries to detect virtualization through RDTSC time measurements
Yara detected GuLoader
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.GuLoader
Status:
Malicious
First seen:
2021-06-09 06:48:10 UTC
AV detection:
22 of 28 (78.57%)
Threat level:
  5/5
Result
Malware family:
guloader
Score:
  10/10
Tags:
family:guloader downloader
Behaviour
Suspicious use of SetWindowsHookEx
Guloader,Cloudeye
Malware Config
C2 Extraction:
https://mail.gryph.com.au/main/Loader_XclRlqyg39.bin
https://tough-guy.xyz/back/Loader_XclRlqyg39.bin
Unpacked files
SH256 hash:
4f6b4079a3f1b56421cbca34d112ba6a867ff8a6bd706010bfe931ac6d635361
MD5 hash:
196b3c910b8d74c5916029f6eb037d5d
SHA1 hash:
37968cade61e54ce0c4ec24e83c35fadd583019f
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


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

Web download

GuLoader

Executable exe 4f6b4079a3f1b56421cbca34d112ba6a867ff8a6bd706010bfe931ac6d635361

(this sample)

  
Delivery method
Distributed via web download

Comments