MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 4b39340a9efe9d10ca32c47ef9c738f51248289d27235286f45c9eb079f59d63. 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: 6
| SHA256 hash: | 4b39340a9efe9d10ca32c47ef9c738f51248289d27235286f45c9eb079f59d63 |
|---|---|
| SHA3-384 hash: | 2801189bd3811160cea725654302830a12e6128d28684cbbd17472d2290d518c5164592740ecbdecfd432ec6f1ef382d |
| SHA1 hash: | fcff9409fac6b56f945a363ef4dd68e98667e642 |
| MD5 hash: | d9fa6435162d4ba40cedef45aca224ef |
| humanhash: | october-pluto-enemy-white |
| File name: | Origineal Documents (1).exe |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 86'016 bytes |
| First seen: | 2020-08-05 09:22:10 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 6d57a2066a14899d5d329f1129d874cc (5 x GuLoader) |
| ssdeep | 768:MUul/QfWTXor9JENHUJj7LVgko7pVaV0U3uu:MUu/QojH+j7LVgjU3u |
| Threatray | 477 similar samples on MalwareBazaar |
| TLSH | 3E833C8265DCE932F338C6B53F3591B7227ABE3206828F0B71583F6E2973D166951217 |
| Reporter |  abuse_ch |
| Tags: | DHL exe GuLoader |
abuse_ch
Malspam distributing GuLoader:From: DHL Customer Support <support_dhl@webavyadmin.live>
Subject: Re: DHL Shipment Notification : 1481951402
Attachment: Origineal Documents.z (contains "Origineal Documents (1).exe")
GuLoader payload URL:
https://drive.google.com/uc?export=download&id=1HceKOZ4jqSp5bxNcLN_fkCb_AORR3-Th
Intelligence
File Origin
# of uploads :
1
# of downloads :
148
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Result
Verdict:
Clean
Maliciousness:
Behaviour
Creating a window
Sending a UDP request
Result
Threat name:
AgentTesla GuLoader
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Contains functionality to hide a thread from the debugger
Executable has a suspicious name (potential lure to open the executable)
Found malware configuration
Hides threads from debuggers
Initial sample is a PE file and has a suspicious name
Machine Learning detection for sample
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)
Sigma detected: RegAsm connects to smtp port
Tries to detect Any.run
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 harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file access)
Writes to foreign memory regions
Yara detected AgentTesla
Yara detected GuLoader
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.FormBook
Status:
Malicious
First seen:
2020-08-05 08:01:58 UTC
AV detection:
24 of 28 (85.71%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
guloader
Similar samples:
+ 467 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
1/10
Tags:
n/a
Behaviour
Suspicious use of SetWindowsHookEx
Suspicious use of SetWindowsHookEx
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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