MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1fbf984271ffa5cf79c2e5e9be8d40198d2c6619ce96899844a9d4ab2ef5bffa. 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: 1fbf984271ffa5cf79c2e5e9be8d40198d2c6619ce96899844a9d4ab2ef5bffa
SHA3-384 hash: f8bcaddf7f8004a7d580da912449d0f8788ba4bb021f1e82f900db166aa22a9f29567a12f22752eea82a30cbe9840e0c
SHA1 hash: 2c0cf4adfe283e55a8c409367f396a84101defa3
MD5 hash: 8ff85d12eff7c5ab365a1feccd45513b
humanhash: north-texas-nebraska-aspen
File name:8ff85d12eff7c5ab365a1feccd45513b
Download: download sample
Signature GuLoader
File size:192'512 bytes
First seen:2021-07-23 16:35:27 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 30a987447f4236964a321e9298f967fb (5 x GuLoader)
ssdeep 1536:5Naz+jgr2NZ6CgaJ1GMrZnAsaUWppUlgmvw+i6:CrUnJ1rrZdaUecX
Threatray 5'230 similar samples on MalwareBazaar
TLSH T1BF1459597E27A636D256C5BC0B4296F128ABFCF44D9EB847D10775322CF1BF90221A23
dhash icon e9f8f2f3949cbcfe (1 x GuLoader, 1 x AgentTesla)
Reporter zbetcheckin
Tags:32 exe GuLoader

Intelligence


File Origin
# of uploads :
1
# of downloads :
225
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
8ff85d12eff7c5ab365a1feccd45513b
Verdict:
No threats detected
Analysis date:
2021-07-23 16:42:14 UTC
Tags:
n/a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
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
Score:
80 / 100
Signature
Contains functionality to detect hardware virtualization (CPUID execution measurement)
Detected RDTSC dummy instruction sequence (likely for instruction hammering)
Found potential dummy code loops (likely to delay analysis)
Multi AV Scanner detection for submitted file
Tries to detect virtualization through RDTSC time measurements
Yara detected GuLoader
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.VBObfuse
Status:
Malicious
First seen:
2021-07-23 16:36:11 UTC
AV detection:
25 of 28 (89.29%)
Threat level:
  5/5
Result
Malware family:
guloader
Score:
  10/10
Tags:
family:guloader downloader
Behaviour
Suspicious use of SetWindowsHookEx
Guloader,Cloudeye
Unpacked files
SH256 hash:
1fbf984271ffa5cf79c2e5e9be8d40198d2c6619ce96899844a9d4ab2ef5bffa
MD5 hash:
8ff85d12eff7c5ab365a1feccd45513b
SHA1 hash:
2c0cf4adfe283e55a8c409367f396a84101defa3
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 1fbf984271ffa5cf79c2e5e9be8d40198d2c6619ce96899844a9d4ab2ef5bffa

(this sample)

  
Delivery method
Distributed via web download

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