MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 fd9a58a1ecdcfcfe67bc1eb8d2d2d35ec30a93651c6c60cca4c519b19c20be39. 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: 5
| SHA256 hash: | fd9a58a1ecdcfcfe67bc1eb8d2d2d35ec30a93651c6c60cca4c519b19c20be39 |
|---|---|
| SHA3-384 hash: | 1b15efe7fadebb355e5d12698e64b6d9345ce5bdbaebc2eac55475aaea5a1e27570111bc42fba15ad04eca1f3180b6dc |
| SHA1 hash: | 58b1e8c5ae40698016d3a1e1a82caa73b147b15f |
| MD5 hash: | 2febe1778eb937eb0e093df5c2f2239d |
| humanhash: | paris-virginia-twenty-west |
| File name: | possible PO.pdf.exe |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 65'536 bytes |
| First seen: | 2020-10-07 05:03:07 UTC |
| Last seen: | 2020-10-07 06:24:10 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | d69f519ae42d0f7dbb0f0ea17eed53bc (6 x GuLoader) |
| ssdeep | 384:3cXTIdQ9QXrvI/N2taxaOsshXEFop3G1WKF7KX4nhmLV8ewvQtuNp2O2:3zdQ9QXrvrt0tssPlLKF7KX4k6K4NAO |
| Threatray | 2'264 similar samples on MalwareBazaar |
| TLSH | B1539F7EA3E8DC51F1ACFD7407619A940C25BC317DE8884729B87BBA063376C6E60257 |
| Reporter |  abuse_ch |
| Tags: | exe GuLoader |
abuse_ch
Malspam distributing GuLoader:HELO: sipau1-19.nexcess.net
Sending IP: 103.242.92.13
From: Azmi Alshanti <Office-Purchasing@mail.com>
Subject: Possible Inquiry
Attachment: possible PO.pdf.zip (contains "possible PO.pdf.exe")
GuLoader payload URL:
https://onedrive.live.com/download?cid=7A41C5DF29C70D9C&resid=7A41C5DF29C70D9C%21120&authkey=ANb4_N57gW8qfaA
Intelligence
File Origin
# of uploads :
2
# of downloads :
157
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Result
Verdict:
Clean
Maliciousness:
Behaviour
Creating a window
Result
Threat name:
AgentTesla GuLoader
Detection:
malicious
Classification:
rans.troj.spyw.evad
Score:
100 / 100
Signature
Contains functionality to detect hardware virtualization (CPUID execution measurement)
Contains functionality to hide a thread from the debugger
Detected RDTSC dummy instruction sequence (likely for instruction hammering)
Found malware configuration
Hides threads from debuggers
Initial sample is a PE file and has a suspicious name
Installs a global keyboard hook
Machine Learning detection for sample
May check the online IP address of the machine
Multi AV Scanner detection for submitted file
Potential malicious icon found
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Tries to detect Any.run
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to steal Mail credentials (via file access)
Uses an obfuscated file name to hide its real file extension (double extension)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected GuLoader
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Vebzenpak
Status:
Malicious
First seen:
2020-10-07 01:58:26 UTC
AV detection:
27 of 29 (93.10%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
suspicious
Similar samples:
+ 2'254 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
1/10
Tags:
n/a
Behaviour
Suspicious use of SetWindowsHookEx
Unpacked files
SH256 hash:
fd9a58a1ecdcfcfe67bc1eb8d2d2d35ec30a93651c6c60cca4c519b19c20be39
MD5 hash:
2febe1778eb937eb0e093df5c2f2239d
SHA1 hash:
58b1e8c5ae40698016d3a1e1a82caa73b147b15f
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Farheyt
Score:
0.80
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Malspam
Delivery method
Distributed via e-mail attachment
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