MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c8b86f436d0bdc91763e23126a5ea0da8504ce66196eb73dc3dde8f955af1ea9. 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: 14


Intelligence 14 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c8b86f436d0bdc91763e23126a5ea0da8504ce66196eb73dc3dde8f955af1ea9
SHA3-384 hash: 5dafa51ca6cb80b6406cd974f485ead3a2251d002c906b4921684562149b7e77e39113048acde9cb608c0e8f1fac92b0
SHA1 hash: 74f7aa308918769af8cc88c16f59f9a5edfc6704
MD5 hash: bd5c3ee098497398ee0f1a08b37923e1
humanhash: lemon-earth-steak-fanta
File name:bd5c3ee098497398ee0f1a08b37923e1
Download: download sample
Signature Formbook
Create hunting rule
File size:883'200 bytes
First seen:2021-11-16 09:35:15 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:Bu3gLh5BhvnYjp5wylGlBNLGcB74RW+aENIK2:Buyh5BhvnYjp5wylGjNCI4Rba
Threatray 11'237 similar samples on MalwareBazaar
TLSH T164154C167AD49C05C37A0231495BE12CDAA46D6B663E8218FE9E33BB2B77711061733F
Reporter zbetcheckin
Tags:32 exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
90
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/206281/
Detection(s):
SecuriteInfo.com.Trojan.Siggen15.37236.6091.20982.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Unauthorized injection to a recently created process
Creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
coinminer obfuscated packed
Link:
https://www.filescan.io/uploads/61937b854912a8c920a01256/reports/e665e052-a8bc-427a-bce4-18d6fc95187a/overview
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.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/8b0fe98c-072f-49ea-8996-b00185bf185f
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/890261
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Found malware configuration
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/c8b86f436d0bdc91763e23126a5ea0da8504ce66196eb73dc3dde8f955af1ea9/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2021-11-08 12:37:19 UTC
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1a1189a38c1148e8c829eca6808ff3bf76df724cdb8dc301a1e5a0e18916739a
Formbook
342bac531d9b15d642629e91af8944289af752dd5d70c687e39cefe9a14dc81d
Formbook
85ee6fb97c2010a9360ee393b6f8515260e312de96ca3afbde06d5aaed699d3d
Formbook
a2dd12adec362ce7457da7795a1b0505dc2c88ab322a1c59637e8196528739f0
Formbook
b0cfa1848c7b08eb881e615731493df57963468fa3fb461ebf1468271dd17a14
Formbook
b89374513ef2e5bd74a6922fc049df5d7037136f47c0fa67c6587ea363513958
Formbook
ddcee2fa36f568c004181f3d91b4b75eeb935a28e9b5a3d32d1c0fd78be4fa70
Formbook
fcd3b620d09a3268b7d58c23a46aaa8446c13e045ad99cf5c71eb2d811f3a61f
Formbook
+ 11'227 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:jy0b rat spyware stealer trojan
Link:
https://tria.ge/reports/211116-lkgynaabbl/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.filecrev.com/jy0b/
Unpacked files
SH256 hash:
5f345f7c4e00a361e326b4678f1812965e8a14957b065eb78d6da684aa0fe0d3
MD5 hash:
4d6d5351b751dec76d80c643bb7d6846
SHA1 hash:
a4695f4529fe8b467ce8711dd5d55fd27f4ddbc3
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/32306807-8b28-4a0f-a5d7-d2748d06966b/
Parent samples :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 hash:
91655863c7906a8d20c7c782144f553c027843a72f2fdab2b1ccc80808083af0
MD5 hash:
b5044dd0e9c91b1a9185d491da7d07f2
SHA1 hash:
a9ff8129771d85f77b6a145f750c70e53f51125e
Link:
https://www.unpac.me/results/32306807-8b28-4a0f-a5d7-d2748d06966b/
SH256 hash:
e0248aceb1c09673449caa624879ba5bf66cc9a919d3adc473e82dd71e6118f3
MD5 hash:
467460520c9607da9e03256272eca437
SHA1 hash:
9f8273649836bfc5ee6fd5a726edf7e704601ff8
Link:
https://www.unpac.me/results/32306807-8b28-4a0f-a5d7-d2748d06966b/
SH256 hash:
c8b86f436d0bdc91763e23126a5ea0da8504ce66196eb73dc3dde8f955af1ea9
MD5 hash:
bd5c3ee098497398ee0f1a08b37923e1
SHA1 hash:
74f7aa308918769af8cc88c16f59f9a5edfc6704
Link:
https://www.unpac.me/results/32306807-8b28-4a0f-a5d7-d2748d06966b/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/c8b86f436d0b/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.95
Link:
https://yomi.yoroi.company/submissions/c8b86f436d0bdc91763e23126a5ea0da8504ce66196eb73dc3dde8f955af1ea9

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 c8b86f436d0bdc91763e23126a5ea0da8504ce66196eb73dc3dde8f955af1ea9

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/1792412/
Cape
Cape
https://www.capesandbox.com/analysis/206281/

Comments