MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 c845d091a060520675309673246e766d1e61bd90ee0e46e1ba46fc08e1cd1ead. 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: | c845d091a060520675309673246e766d1e61bd90ee0e46e1ba46fc08e1cd1ead |
|---|---|
| SHA3-384 hash: | a5acb684a2c8d46750aefba85809ee08a24d43a6816dea8dd6f65ca46c1df60e3ea49e84fd17c8c6c29cc77468428ad6 |
| SHA1 hash: | cac765a4ac0c38822143c28d44c2b7b4aaaa1c3c |
| MD5 hash: | 7c18961a1aab50c8d092ee1285d5f354 |
| humanhash: | hamper-washington-beryllium-nebraska |
| File name: | PO.pdf.exe |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 65'536 bytes |
| First seen: | 2020-10-06 06:04:54 UTC |
| Last seen: | 2020-10-06 07:22:48 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | b05ff7faf0ef7c5daecbf99f3a4e5a6f (6 x GuLoader) |
| ssdeep | 768:Pk5WJesbbC+MrPrjlXj49tR5o5qG5Y0HQ8TdaA:CWjbC+MDrjlXj4Z5sqG3T |
| Threatray | 2'263 similar samples on MalwareBazaar |
| TLSH | 9153C1B9A3C99C16F40DFDB00E5283904C527D707EE98A87A4787B3A1872B6E7C1175B |
| 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 Inquiry.pdf.zip (contains "PO.pdf.exe")
GuLoader payload URL:
https://onedrive.live.com/download?cid=7A41C5DF29C70D9C&resid=7A41C5DF29C70D9C%21118&authkey=AGpYDF93tk1PiOc
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.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
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)
Hides threads from debuggers
Initial sample is a PE file and has a suspicious name
Machine Learning detection for sample
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
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:
2020-10-06 02:05:38 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
guloader
Similar samples:
+ 2'253 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
1/10
Tags:
n/a
Behaviour
Suspicious use of SetWindowsHookEx
Unpacked files
SH256 hash:
c845d091a060520675309673246e766d1e61bd90ee0e46e1ba46fc08e1cd1ead
MD5 hash:
7c18961a1aab50c8d092ee1285d5f354
SHA1 hash:
cac765a4ac0c38822143c28d44c2b7b4aaaa1c3c
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.16
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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