MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 b40cbfc5b305924116c41f9f96add7e45e3f023c5bdefddbdcc9889e2443834e. 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: 4
| SHA256 hash: | b40cbfc5b305924116c41f9f96add7e45e3f023c5bdefddbdcc9889e2443834e |
|---|---|
| SHA3-384 hash: | c1411a2c820d4fc8469646d48a68e0b643703f96aa6e436c62566b63187797bb29e80696016314ea46d722ba50e4cd26 |
| SHA1 hash: | 650b387325ca1cfe5f7fde296ab3abec88fd4796 |
| MD5 hash: | 594906ac618036c814735443d7ae264d |
| humanhash: | oregon-harry-yankee-oven |
| File name: | RFQ MOLD6312701 2K Modification.exe |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 69'632 bytes |
| First seen: | 2020-11-12 14:40:17 UTC |
| Last seen: | 2024-07-24 20:33:42 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | d6030cf8147a673a435cb1240ac66c00 (2 x GuLoader) |
| ssdeep | 768:i+Y2RddQf2Ja+Mn0i9mfoC/XCZI2rOsv:G2Rddaia+c0PwXX |
| Threatray | 3'781 similar samples on MalwareBazaar |
| TLSH | FA637D7165818072D2EAF2B86D7BC6EC0267EF2019E58A4B34243B3DE972F011DB4767 |
| Reporter |  FORMALITYDE |
| Tags: | exe GuLoader |
Intelligence
File Origin
# of uploads :
3
# of downloads :
213
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
Result
Verdict:
Clean
Maliciousness:
Behaviour
Creating a window
Result
Gathering data
Result
Threat name:
FormBook 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)
Hides threads from debuggers
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Potential malicious icon found
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
System process connects to network (likely due to code injection or exploit)
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 ipconfig to lookup or modify the Windows network settings
Yara detected FormBook
Yara detected Generic Dropper
Yara detected GuLoader
Yara detected VB6 Downloader Generic
Behaviour
Behavior Graph:
Threat name:
Win32.Ransomware.VBCryptor
Status:
Malicious
First seen:
2020-11-12 14:31:05 UTC
AV detection:
25 of 29 (86.21%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
suspicious
Similar samples:
+ 3'771 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
1/10
Tags:
n/a
Behaviour
Suspicious use of SetWindowsHookEx
Unpacked files
SH256 hash:
b40cbfc5b305924116c41f9f96add7e45e3f023c5bdefddbdcc9889e2443834e
MD5 hash:
594906ac618036c814735443d7ae264d
SHA1 hash:
650b387325ca1cfe5f7fde296ab3abec88fd4796
Please note that we are no longer able to provide a coverage score for Virus Total.
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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