MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3b162f2943b2ee8d6075b2f8f4cbd7832e11b50ecdfcb4a68cf18eb1c7614651. 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


Intelligence 5 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3b162f2943b2ee8d6075b2f8f4cbd7832e11b50ecdfcb4a68cf18eb1c7614651
SHA3-384 hash: 08cc0d192450d979e37769c79a1264310892b4dc6711511d91e2aa7826e1667aabb30598d2584a9d5a73514ef4ba67e3
SHA1 hash: 7e72225620b06b6d9f5d54ee45ca2dd7ba10e87e
MD5 hash: 937841064411662c36469498ea645660
humanhash: river-don-oregon-whiskey
File name:TR-D45.pdf.exe
Download: download sample
Signature GuLoader
Create hunting rule
File size:86'016 bytes
First seen:2020-11-20 07:49:28 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 0cb4f4ece3f5875b40d2bf4babdf78ef (3 x GuLoader)
ssdeep 768:dM21YSCVEWuYk96U1N+2gC3UGHNbdfJ+fQ2uepQc5408zZkOcG:hYSwuYk22gdyN2bueypaOZ
Threatray 4'454 similar samples on MalwareBazaar
TLSH 24835C4AB19DD532D22979B24725C9EC859A7F39DEC74D0334893E2FF931D186A0213E
Reporter abuse_ch
Tags:exe GuLoader


Avatar
abuse_ch
Malspam distributing GuLoader:

HELO: ygw4.ni.net.tr
Sending IP: 159.253.40.124
From: info@ynsreksan.com.tr
Subject: Re:Quotation Update Request
Attachment: TR-D45.pdf.rar (contains "TR-D45.pdf.exe")

GuLoader payload URL:
https://pilatescollective.com/myguy/Edog_WaRWObtLyf156.bin

Intelligence

File Origin
# of uploads :
1
# of downloads :
270
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
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:
FormBook GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/543812
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
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
Sigma detected: Suspicious Double Extension
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
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 an obfuscated file name to hide its real file extension (double extension)
Yara detected FormBook
Yara detected Generic Dropper
Yara detected GuLoader
Yara detected VB6 Downloader Generic
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 321007 Sample: TR-D45.pdf.exe Startdate: 20/11/2020 Architecture: WINDOWS Score: 100 29 g.msn.com 2->29 39 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->39 41 Malicious sample detected (through community Yara rule) 2->41 43 Multi AV Scanner detection for submitted file 2->43 45 9 other signatures 2->45 11 TR-D45.pdf.exe 1 2->11         started        signatures3 process4 signatures5 55 Contains functionality to detect hardware virtualization (CPUID execution measurement) 11->55 57 Detected RDTSC dummy instruction sequence (likely for instruction hammering) 11->57 59 Tries to detect Any.run 11->59 61 3 other signatures 11->61 14 TR-D45.pdf.exe 6 11->14         started        process6 dnsIp7 37 pilatescollective.com 192.185.152.65, 443, 49718 UNIFIEDLAYER-AS-1US United States 14->37 63 Modifies the context of a thread in another process (thread injection) 14->63 65 Tries to detect Any.run 14->65 67 Maps a DLL or memory area into another process 14->67 69 3 other signatures 14->69 18 explorer.exe 14->18 injected signatures8 process9 dnsIp10 31 gcvinternational.com 34.102.136.180, 49743, 80 GOOGLEUS United States 18->31 33 www.celebrations.sucks 54.147.194.143, 49745, 80 AMAZON-AESUS United States 18->33 35 2 other IPs or domains 18->35 47 System process connects to network (likely due to code injection or exploit) 18->47 22 control.exe 18->22         started        signatures11 process12 signatures13 49 Modifies the context of a thread in another process (thread injection) 22->49 51 Maps a DLL or memory area into another process 22->51 53 Tries to detect virtualization through RDTSC time measurements 22->53 25 cmd.exe 1 22->25         started        process14 process15 27 conhost.exe 25->27         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/3b162f2943b2ee8d6075b2f8f4cbd7832e11b50ecdfcb4a68cf18eb1c7614651/
Threat name:
Win32.Trojan.Vebzenpak
Create hunting rule
Status:
Malicious
First seen:
2020-11-20 04:48:16 UTC
AV detection:
22 of 29 (75.86%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=hmlc6kkdwlxi2ydvwl4pjs6xqmxbdniozx6ljjum6ghldr3biziq._file
Verdict:
suspicious
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+ 4'444 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  1/10
Tags:
n/a
Link:
https://tria.ge/reports/201120-6rkg14nw86/
Behaviour
Suspicious use of SetWindowsHookEx
Unpacked files
SH256 hash:
3b162f2943b2ee8d6075b2f8f4cbd7832e11b50ecdfcb4a68cf18eb1c7614651
MD5 hash:
937841064411662c36469498ea645660
SHA1 hash:
7e72225620b06b6d9f5d54ee45ca2dd7ba10e87e
Link:
https://www.unpac.me/results/6ff59d2a-82b7-47c0-8a4f-f32854e63601/
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

GuLoader

rar b8d28e16d22608e1d33387500fbc57dabb657db75b68150d6c6593c323d40af0

GuLoader

Executable exe 3b162f2943b2ee8d6075b2f8f4cbd7832e11b50ecdfcb4a68cf18eb1c7614651

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/835903/
  
Dropped by
MD5 7d18a4c89f87a5546c343ebf636fa886
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 b8d28e16d22608e1d33387500fbc57dabb657db75b68150d6c6593c323d40af0

Comments