MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 21afff77ea0ce89dca2d925ed0d8b5a61f7ab42ca9aca78019843e9e251bbcb3. 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: | 21afff77ea0ce89dca2d925ed0d8b5a61f7ab42ca9aca78019843e9e251bbcb3 |
|---|---|
| SHA3-384 hash: | 71bbc94e6db1b13b7c5927cef468169a63b8ca743718c3205b642d8943741d0a7e92f8cb73948e9e699838fc3df76daa |
| SHA1 hash: | a7838df5f7c9ff634e5f14f5214050ebfe83930f |
| MD5 hash: | 88082512c0e181dad2f506893c40657b |
| humanhash: | muppet-december-three-aspen |
| File name: | i_Remittance.exe |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 61'440 bytes |
| First seen: | 2020-12-03 17:41:32 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 277010f73b829299387a797a681d7e8c (3 x GuLoader) |
| ssdeep | 384:2YlbXDIEvUNEqbBKV6HDlSAxrZ7haSeVnFEEfJkbCmCTQgogpkgQwX/P:2OzLYBMVqz74Z1FQ+mNd5U |
| Threatray | 4'593 similar samples on MalwareBazaar |
| TLSH | 38530A03F6438866E4C345B35F7397A841933D75AE426903A9A87A4DF932DC1BC6DB0B |
| Reporter |  abuse_ch |
| Tags: | exe GuLoader |
abuse_ch
Malspam distributing GuLoader:HELO: server.jayaproperty.com
Sending IP: 119.235.255.130
From: Vale <sales@horeco.com>
Subject: Payment Remittance Advice.
Attachment: i_Remittance.iso (contains "i_Remittance.exe")
GuLoader payload URL:
https://mindforcehypnosis.com/fas/decemberomo_FkoIc77.bin
Intelligence
File Origin
# of uploads :
1
# of downloads :
344
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Result
Verdict:
Clean
Maliciousness:
Behaviour
Creating a window
Sending a UDP request
Result
Verdict:
UNKNOWN
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:
Nanocore GuLoader
Detection:
malicious
Classification:
rans.troj.evad
Score:
100 / 100
Signature
Detected Nanocore Rat
Detected RDTSC dummy instruction sequence (likely for instruction hammering)
Hides that the sample has been downloaded from the Internet (zone.identifier)
Hides threads from debuggers
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Potential malicious icon found
Sigma detected: NanoCore
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 dynamic DNS services
Writes to foreign memory regions
Yara detected GuLoader
Yara detected VB6 Downloader Generic
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Vebzenpak
Status:
Malicious
First seen:
2020-12-03 17:42:07 UTC
AV detection:
16 of 28 (57.14%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
suspicious
Similar samples:
+ 4'583 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
1/10
Tags:
n/a
Behaviour
Suspicious use of SetWindowsHookEx
Unpacked files
SH256 hash:
21afff77ea0ce89dca2d925ed0d8b5a61f7ab42ca9aca78019843e9e251bbcb3
MD5 hash:
88082512c0e181dad2f506893c40657b
SHA1 hash:
a7838df5f7c9ff634e5f14f5214050ebfe83930f
Malware family:
GuLoader
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.00
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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