MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 cd9b1bef8decc710af8d73592e4438aa09b8da993995bca1983d845a3e1c7476. 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: 8
| SHA256 hash: | cd9b1bef8decc710af8d73592e4438aa09b8da993995bca1983d845a3e1c7476 |
|---|---|
| SHA3-384 hash: | 457a2587717a886ed06f53d0712b765e7f403a8957f343aaa9cdde34dbed4ecf1a73721371c44ca7a70a439495e42f41 |
| SHA1 hash: | d477b83c0c89cdcbc7294c9deda93cc63f2cd5f6 |
| MD5 hash: | 239af05f107a9afc53699ab9af35d467 |
| humanhash: | berlin-virginia-fifteen-hawaii |
| File name: | 239af05f107a9afc53699ab9af35d467.exe |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 102'400 bytes |
| First seen: | 2021-02-18 15:44:29 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 28cfb83efbb0b6bd426b66f31651da5c (16 x GuLoader, 1 x RemcosRAT) |
| ssdeep | 1536:W345mSgkK6Z2UQcisS6PyUzt2Lpv+/t+d+:PIySUQOLaIt0 |
| Threatray | 4'774 similar samples on MalwareBazaar |
| TLSH | B1A3E772B560EDB6D18080714552F7AC0957BF324844AD2FFACCBB5E1ABB6D3A090D1B |
| Reporter |  abuse_ch |
| Tags: | exe GuLoader |
Intelligence
File Origin
# of uploads :
1
# of downloads :
180
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Guloader
Detection(s):
Result
Verdict:
Clean
Maliciousness:
Behaviour
Creating a window
Sending a UDP request
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:
Nanocore GuLoader
Detection:
malicious
Classification:
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
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Sigma detected: NanoCore
Sigma detected: Scheduled temp file as task from temp location
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
Uses schtasks.exe or at.exe to add and modify task schedules
Writes to foreign memory regions
Yara detected GuLoader
Yara detected Nanocore RAT
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Wacatac
Status:
Malicious
First seen:
2021-02-18 15:45:07 UTC
AV detection:
13 of 29 (44.83%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
malicious
Label(s):
guloader
Similar samples:
+ 4'764 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
1/10
Tags:
n/a
Behaviour
Suspicious use of SetWindowsHookEx
Unpacked files
SH256 hash:
cd9b1bef8decc710af8d73592e4438aa09b8da993995bca1983d845a3e1c7476
MD5 hash:
239af05f107a9afc53699ab9af35d467
SHA1 hash:
d477b83c0c89cdcbc7294c9deda93cc63f2cd5f6
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Web download
Delivery method
Distributed via web download
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