MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d3e579b62c6877384f6ed9da7d86aea05ff6b881c141470ec7858fe9f0d992a9. 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: 10


Intelligence 10 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: d3e579b62c6877384f6ed9da7d86aea05ff6b881c141470ec7858fe9f0d992a9
SHA3-384 hash: a0d87717282e032b45bfa18b314f94160b9cc5f7bba0ad4ae2d91461bfdc69b4743a821f44385c399a5010c2448e1a35
SHA1 hash: 11206d11c9068b05b3561fcc92769a795d7c7394
MD5 hash: a4a52476601d83fa47fc59ba7a548ac2
humanhash: west-sweet-happy-early
File name:4-08.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:456'192 bytes
First seen:2020-08-04 15:24:11 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'666 x AgentTesla, 19'479 x Formbook, 12'209 x SnakeKeylogger)
ssdeep 6144:hXdHAgbCa8sGQTPyCrbMPSTsuXlQHzsTBOtWcOi+NTj:htHX8kTPyCrbSR2lCiTj
Threatray 5'304 similar samples on MalwareBazaar
TLSH E4A48E3A3943C028C9150AB498396AD7E6397B753B128A1EB3A7134C1F5356F7B2712F
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing Formbook:

HELO: slot0.emothway.com
Sending IP: 45.95.169.243
From: EMILIA PABLO <info@emothway.com>
Subject: COPIA DE PAGO BANCO
Attachment: 4-08.zip (contains "4-08.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
88
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/38815/
Detection(s):
Win.Malware.Formbook-7399661-0
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %temp% directory
Creating a process from a recently created file
Creating a file
Launching a process
Launching cmd.exe command interpreter
Setting browser functions hooks
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Forced shutdown of a system process
Unauthorized injection to a system process
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/409701
Signature
.NET source code contains very large array initializations
Injects a PE file into a foreign processes
Machine Learning detection for sample
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)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/d3e579b62c6877384f6ed9da7d86aea05ff6b881c141470ec7858fe9f0d992a9/
Threat name:
ByteCode-MSIL.Backdoor.Bladabhindi
Create hunting rule
Status:
Malicious
First seen:
2020-08-04 15:26:08 UTC
AV detection:
38 of 48 (79.17%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=2psxtnrmnb3tqt3o3hnh3bvoubp7noebyfauodwhqwh6t4gzskuq._file
Verdict:
malicious
Similar samples:
172842029f8937753e79843e36fcb4715c0f3a9de4b256585847df48caf8e10f
Formbook
1f9fd019fecafc3fbe198147d78effb31ddcf7908536854e386a971602afe1c1
Formbook
474cad642b1cf88f8d7f922cbfd9b8a00d7fc0eb40cafc0877007ee2884f105f
Formbook
590fde182a154cd89b15d88546d60351b9fecb51e04fbbf4affd8d49a618bd23
Formbook
5ad5a878cb51009bc4e935705c0a1ef60654891dd16fe19f728f344b5aaeff2e
Formbook
8e2f9a1b23ade94b0803ea57ac92e916daad73d760f075fed8f1443715104531
Formbook
967360ebfc55336f03edccc32869b0e6b65c17e66fcdac083d4bcc185b852c0d
Formbook
db976b273e92b605275bbe6c8590f3ef6687faa0effc351a35d15af1f8fc1c3a
Formbook
e04b0836667f55bcc1778c62761c99af52cb5c42c14cef3962531512def2944b
Formbook
e6d371badc121f232f4305f3a50f0a136d1b7edbc3337414ca692c26ae41986c
Formbook
+ 5'294 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
rat family:formbook
Link:
https://tria.ge/reports/200804-4nltvt8h1n/
Behaviour
Formbook Payload
Formbook family
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
0.70
Link:
https://yomi.yoroi.company/submissions/d3e579b62c6877384f6ed9da7d86aea05ff6b881c141470ec7858fe9f0d992a9

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:Formbook
Create hunting rule
Author:JPCERT/CC Incident Response Group
Description:detect Formbook in memory
Reference:internal research
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information

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

Malspam

Formbook

zip 8a2169109b8ddedf13693733dffba25670ab91e8a281ff8107bc607d3ddbec96

Formbook

Executable exe d3e579b62c6877384f6ed9da7d86aea05ff6b881c141470ec7858fe9f0d992a9

(this sample)

  
Dropped by
MD5 6c37fbd758bd2830a1d21e52a564c88a
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/38815/
  
Dropped by
SHA256 8a2169109b8ddedf13693733dffba25670ab91e8a281ff8107bc607d3ddbec96

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