MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 6a3131b719f6687d8d51316dc8fd7ec2eb5bda66eca9220f66d0c1b0853d470c. 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: | 6a3131b719f6687d8d51316dc8fd7ec2eb5bda66eca9220f66d0c1b0853d470c |
|---|---|
| SHA3-384 hash: | 26c372ce7a4278f552ddf8ab65f74d0193e2645c51125769adfc3b340e162220553cf07ab710453c64ba8353e1d4a7ff |
| SHA1 hash: | fa95455197021e97d00a91d7b95c4e810300623d |
| MD5 hash: | 437e9f115bd3c2badcea029764c761fc |
| humanhash: | coffee-arkansas-indigo-don |
| File name: | RFQ documents for 250 KTA VCM PLANT and 250 KTA PVC EXPANSION.exe |
| Download: | download sample |
| Signature | GuLoader |
| File size: | 65'536 bytes |
| First seen: | 2020-10-06 05:58:44 UTC |
| Last seen: | 2020-10-06 07:22:34 UTC |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | fd0bb607c2afaa7ad34821eaaeac4dd3 (1 x GuLoader) |
| ssdeep | 384:DM4O+uGrvsJesUZff8T1hAI51xT2F6OlFUDM75qLrIJJ54t23YXRBgj6/f77bO:DMYuGRhZMnAUJOMO5QrIXuw3wRBlbP |
| Threatray | 2'257 similar samples on MalwareBazaar |
| TLSH | 82534A71D94C0227F65C927E2EEC45B550BA6F78D2BDF84209120A4F19B1F056DACE37 |
| Reporter |  abuse_ch |
| Tags: | exe GuLoader Hostwinds |
abuse_ch
Malspam distributing GuLoader:HELO: hwsrv-786083.hostwindsdns.com
Sending IP: 104.168.149.36
From: Chae-Won Lee <giuluo@hec.co.kr>
Reply-To: kevin.yen@powertech.tw
Subject: KHE Request for Bid for 250 KTA VCM Plant and 250 KTA PVC Expansion (SULFINDO)
Attachment: RFQ documents for 250 KTA VCM PLANT and 250 KTA PVC EXPANSION.exe
GuLoader payload URL:
http://otumbauyhhggggs.webredirect.org/uploud/5bab0b1d864615bab0b1d864b3/bin_SBQLIfAQna96.bin
Intelligence
File Origin
# of uploads :
2
# of downloads :
153
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:
FormBook GuLoader
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
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)
Executable has a suspicious name (potential lure to open the executable)
Hides threads from debuggers
Initial sample is a PE file and has a suspicious name
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 submitted file
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
Yara detected FormBook
Yara detected Generic Dropper
Yara detected GuLoader
Yara detected VB6 Downloader Generic
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Vebzenpak
Status:
Malicious
First seen:
2020-10-06 01:18:11 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
5/5
Detection(s):
Malicious file
Verdict:
suspicious
Similar samples:
+ 2'247 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
1/10
Tags:
n/a
Behaviour
Suspicious use of SetWindowsHookEx
Unpacked files
SH256 hash:
6a3131b719f6687d8d51316dc8fd7ec2eb5bda66eca9220f66d0c1b0853d470c
MD5 hash:
437e9f115bd3c2badcea029764c761fc
SHA1 hash:
fa95455197021e97d00a91d7b95c4e810300623d
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Dropper
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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