MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3864b3a157ece572eabb6d56e50d577d0993fc7150bb5046e26e4fdc6bdf3c76. 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


Formbook


Vendor detections: 12


Intelligence 12 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 3864b3a157ece572eabb6d56e50d577d0993fc7150bb5046e26e4fdc6bdf3c76
SHA3-384 hash: eda8e8cd85da40c84dcd3b41c63a78c8137186d630320c5818815a99558543826955d13725cc30cf51770dbf9625637b
SHA1 hash: d2972fb3c632473eb22f353755e0f31f999532b7
MD5 hash: 3daaa20ac455b9586113cba234ae3153
humanhash: illinois-oscar-vegan-triple
File name:3daaa20ac455b9586113cba234ae3153.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:697'344 bytes
First seen:2021-09-03 07:35:40 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'647 x AgentTesla, 19'451 x Formbook, 12'201 x SnakeKeylogger)
ssdeep 6144:HBYFJLgGVFjvC+w7Mp5zmeEyK1mlfu7oVMGMLQwNFRKs0ZnnsCJaIUSSLyFpVI:6vVBpnAIutGMnNFR90DaIkepI
Threatray 8'883 similar samples on MalwareBazaar
TLSH T113E42C3E58FE23279176C7D5CBE18923F6C498AF3233A96467D747264306A4635C322E
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
249
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
P.OInvoice.doc
Verdict:
Malicious activity
Analysis date:
2021-09-03 07:28:06 UTC
Tags:
exploit CVE-2017-11882 loader trojan formbook stealer
Link:
https://app.any.run/tasks/fff5e792-1d45-4f67-8e55-d849076e017a

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/185057/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/ab408f65-5198-4be5-813e-84f6996f0e0e
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/844613
Signature
.NET source code contains potential unpacker
.NET source code contains very large strings
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found malware configuration
Injects a PE file into a foreign processes
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
Self deletion via cmd delete
Sigma detected: CMSTP Execution Process Creation
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 sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 477045 Sample: 8a2Qe2xVtQ.exe Startdate: 03/09/2021 Architecture: WINDOWS Score: 100 36 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->36 38 Found malware configuration 2->38 40 Malicious sample detected (through community Yara rule) 2->40 42 10 other signatures 2->42 10 8a2Qe2xVtQ.exe 3 2->10         started        process3 file4 28 C:\Users\user\AppData\...\8a2Qe2xVtQ.exe.log, ASCII 10->28 dropped 54 Tries to detect virtualization through RDTSC time measurements 10->54 56 Injects a PE file into a foreign processes 10->56 14 8a2Qe2xVtQ.exe 10->14         started        signatures5 process6 signatures7 58 Modifies the context of a thread in another process (thread injection) 14->58 60 Maps a DLL or memory area into another process 14->60 62 Sample uses process hollowing technique 14->62 64 Queues an APC in another process (thread injection) 14->64 17 explorer.exe 14->17 injected process8 dnsIp9 30 www.safercheckin.com 17->30 32 www.cookingweb.net 17->32 34 2 other IPs or domains 17->34 44 System process connects to network (likely due to code injection or exploit) 17->44 21 cmstp.exe 17->21         started        signatures10 process11 signatures12 46 Self deletion via cmd delete 21->46 48 Modifies the context of a thread in another process (thread injection) 21->48 50 Maps a DLL or memory area into another process 21->50 52 Tries to detect virtualization through RDTSC time measurements 21->52 24 cmd.exe 1 21->24         started        process13 process14 26 conhost.exe 24->26         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/3864b3a157ece572eabb6d56e50d577d0993fc7150bb5046e26e4fdc6bdf3c76/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2021-09-03 04:39:21 UTC
AV detection:
9 of 42 (21.43%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
25644ff35da89545c702b633182c4ff1f649dd64c9c8249be9afe7090359d87d
Formbook
2e607b4e0cec9f7569023816f39f2822e4363c9b67ca3bf8eb128932e42a0535
Formbook
44fbe3e681b0298ad218c311c799a31aca40509fc6da64d5be24074043404572
Formbook
ad86b6dd3faef43b4ef56786e35a7d2b38a369e6082c72c3cac0267a5b8efc5a
Formbook
ae5df8905dd1b9de509e6764dea4c5571916b1705a129bddf2f5e2e554552acb
Formbook
b3c5b3cf581d15fcbacf67b4bdba199bfe7089704875746109b3206eb07b99e2
Formbook
d0116b0ea676a655b1d55a2b7a79fb2585c1d04803e9d1d6f9cd1da15f789138
Formbook
d869fa27fd5d5a229609f218572f1625820cb8176ba6c1616714e40d4e6b7897
Formbook
e4145611fb9671662e34a829bbebdafa3bf22e16ec460c49939c52ccc3ba03d7
Formbook
e8be28fabd7cdb2d4e96137dae73bd9b227a86b654c696e9fd401cb37ec68267
Formbook
+ 8'873 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:crg3 rat spyware stealer trojan
Link:
https://tria.ge/reports/210903-je915scfh7/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.infinityormus.com/crg3/
Unpacked files
SH256 hash:
332be21efbb752152a374212f6dfd06de281f558523db11d1c01fe02fa71033d
MD5 hash:
db9fc14b124b2bf3d691822c28c5348b
SHA1 hash:
aaaed82b614b14d936fbdf54d9c4e6e1ff068069
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/2ac539be-1f32-42ab-b669-b9a1392b5214/
Parent samples :
44fbe3e681b0298ad218c311c799a31aca40509fc6da64d5be24074043404572
2e607b4e0cec9f7569023816f39f2822e4363c9b67ca3bf8eb128932e42a0535
3864b3a157ece572eabb6d56e50d577d0993fc7150bb5046e26e4fdc6bdf3c76
SH256 hash:
9a569be1313734a7a5657149f890204e1246833e80ac0e45c15b9ebc972cfa99
MD5 hash:
db1ca79a10eb8debc020653b67a41ed4
SHA1 hash:
c9aff868749946879d85e0c75c11a085d3c244c2
Link:
https://www.unpac.me/results/2ac539be-1f32-42ab-b669-b9a1392b5214/
SH256 hash:
dbd346e0572e8ce5c7dd274ea621e57f95af7e052b73b813f099313020a85083
MD5 hash:
c5c82b6b57632ed33ab17e1d4fc86d0c
SHA1 hash:
c5861efc9065660a81fb487797730017acbca6ea
Link:
https://www.unpac.me/results/2ac539be-1f32-42ab-b669-b9a1392b5214/
SH256 hash:
3864b3a157ece572eabb6d56e50d577d0993fc7150bb5046e26e4fdc6bdf3c76
MD5 hash:
3daaa20ac455b9586113cba234ae3153
SHA1 hash:
d2972fb3c632473eb22f353755e0f31f999532b7
Link:
https://www.unpac.me/results/2ac539be-1f32-42ab-b669-b9a1392b5214/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.81
Link:
https://yomi.yoroi.company/submissions/3864b3a157ece572eabb6d56e50d577d0993fc7150bb5046e26e4fdc6bdf3c76

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:pe_imphash
Create hunting rule
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Formbook

Executable exe 3864b3a157ece572eabb6d56e50d577d0993fc7150bb5046e26e4fdc6bdf3c76

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1586157/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/185057/

Comments