MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 221c96dcf9d3f774e6d79c3db0c56885381f2134f381cb471f08c75072adba26. 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: 5


Intelligence 5 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 221c96dcf9d3f774e6d79c3db0c56885381f2134f381cb471f08c75072adba26
SHA3-384 hash: f9439b711c9f30420cd0bf64fc5c7048fcb5bf89dd0f1d278a995b1a4f4d462779dcb5152ab4fb58eaf89fc6e30567cd
SHA1 hash: df23d0e3389e21b6547715e38362c41421273a53
MD5 hash: 11819542eef06554403f4af78cd3f61d
humanhash: texas-arizona-social-seventeen
File name:6130449.jpg.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:436'224 bytes
First seen:2020-09-02 13:30:19 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'752 x AgentTesla, 19'657 x Formbook, 12'248 x SnakeKeylogger)
ssdeep 6144:3BPYE9q5gTCGeXNdtrlqs2wQoPiWw+5xO6:eE9qSC/XNdOs27+iWwQO6
Threatray 61 similar samples on MalwareBazaar
TLSH 69943A3A36CB8028C43D42B1502C59E2B629AE4B3B848E2E73D7534C9F16D9FB76155F
Reporter James_inthe_box
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
184
Origin country :
n/a
Vendor Threat Intelligence
Gathering data
Result
Verdict:
Clean
Maliciousness:

Behaviour
Creating a window
Launching the default Windows debugger (dwwin.exe)
Sending a UDP request
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
72 / 100
Link:
https://www.joesandbox.com/analysis/457512
Signature
.NET source code contains very large array initializations
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Uses an obfuscated file name to hide its real file extension (double extension)
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/221c96dcf9d3f774e6d79c3db0c56885381f2134f381cb471f08c75072adba26/
Threat name:
ByteCode-MSIL.Trojan.Kryptik
Create hunting rule
Status:
Malicious
First seen:
2020-09-02 11:19:39 UTC
File Type:
PE (.Net Exe)
Extracted files:
3
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=eiojnxhz2p3xjzwxtq63brliqu4b6iju6oa4wry7bddva4vnxita._file
Verdict:
unknown
Similar samples:
159921268e1634b4695fdeb118786e1d8b3607e775ec42913beeae5f497d0011
Formbook
4b957c9c068b3545eeebdafc11543b47228daf7e5bfa9500cf5660c1236a8184
Formbook
72401bf3b38c9ea0fafb14afa9fd35484add4163752be1f7243a9e7d6fa3c7af
Formbook
8ab140bb28604e13079fa3aa37f12f521a7ab3619b979e0ca505a337a544431b
Formbook
acf68538ba67b523ff52999cc40e2ef3383c53b5b5fe53c634cf7c52f5c9dbe3
Formbook
af403c116c3b92f0d3d363f85a7d70e97abcffbe2278651471dfe0e1a46a1945
Formbook
d0894e4e4298d1dda4d2f1072eaefac087c6723206cf07260f1ab075f47169ed
Formbook
e14485ceea75d472b156c60312308d431fbd7bf1fbc0b4994fb47c05b79c6ddf
Formbook
e33cc945d6b0681de6b34b52f0cb609676cdf5f3ecf61f4122b64d7a7e74b5ca
Formbook
fbab77a9399461b71d65d586ad2aac134941f7fac37e5e607822749a627b3937
Formbook
+ 51 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  4/10
Tags:
n/a
Link:
https://tria.ge/reports/200902-krjk3djqex/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Program crash
Program crash
Drops file in Windows directory
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/221c96dcf9d3f774e6d79c3db0c56885381f2134f381cb471f08c75072adba26

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.

  
Delivery method
Other
Cape
Cape
https://www.capesandbox.com/analysis/54358/

Comments