MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ca3ab25a8c3213aa08113b09cc4b60df1d2c440aeb0e02c1e3bd192a57f86208. 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: 7


Intelligence 7 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: ca3ab25a8c3213aa08113b09cc4b60df1d2c440aeb0e02c1e3bd192a57f86208
SHA3-384 hash: 77225aa4ece6652887df1424212b04bff2d375f2144b0e9a97240695ffadd27fd91294f6e2b561366fd61d0c1bd432e7
SHA1 hash: 5408ff7b5aa92e0f4d39b4b336f5496fbd669a05
MD5 hash: 85f5cd12e5a29d0ac665b37c778917f1
humanhash: carbon-beer-happy-oscar
File name:PO-4093021.exe
Download: download sample
Signature FormBook
Create hunting rule
File size:370'688 bytes
First seen:2020-07-06 06:35:57 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 6144:SJe7wWX7SFG7i+n3HAApBz+HVliJ30U3K6ZbWjVElgPqkhO8+3zJUyPXcYe5:skuwPn3VkiPZbWj++ONzCIXLe
Threatray 5'121 similar samples on MalwareBazaar
TLSH E574E1B20646BEDEE73D0D74D24513500DE91C6BAB60C449BECC35CA12FBB609DB9A36
Reporter abuse_ch
Tags:exe FormBook


Avatar
abuse_ch
Malspam distributing FormBook:

HELO: mail.opticalnetworks.xyz
Sending IP: 159.89.88.255
From: Joakim (MALIQUE CO LTD) <j.kim@malique.net>
Subject: Re: Purchase Order PO-4093021b
Attachment: PO-4093021.arj (contains "PO-4093021.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
576
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/20839/
Detection(s):
SecuriteInfo.com.Generic-EXE.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Unauthorized injection to a recently created process
Launching a process
Launching cmd.exe command interpreter
Possible injection to a system process
Unauthorized injection to a system process
Deleting of the original file
Unauthorized injection to a browser process
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/ca3ab25a8c3213aa08113b09cc4b60df1d2c440aeb0e02c1e3bd192a57f86208/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2020-07-06 02:03:40 UTC
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=zi5lewumgij2ucarhme4ys3a34osyrak5mhafqpdxumsuv7ymiea._file
Verdict:
malicious
Similar samples:
0d567b16454b8c3be5e7dbc796bf7049c0eb18ba9a625d6b5f45eff7202aaf70
FormBook
165a08681451ecc7ad583d97bacbc449b219a7ea3daa0355f2c77d19907a1d0d
FormBook
22f4207de77f987b6791843539e25e05ff3f6c010e805330210399e23c323b87
FormBook
51d3cb67de439aca2814ae5eda56dc730fc590ed7353aba47febc451c740f501
FormBook
5767bcddaf9404e411f25e457d8af27eeefa15515f415e901b6e7412708e5209
FormBook
8509ca4c5f81525eb6f300294703c9c66af0369374bc064ac024c9dae62c7092
FormBook
b881e52663ba0b4af029f185d0ff8b16c7e77f253df90a489e46b67e44c3c20f
FormBook
c2d515e9dd5705196004ff3a32c774ac254b80d3fe97d6d8619c0468ef6ecabf
FormBook
d6330004986cb2968200bad58cb3f1135e2383d9bdf6894feff0f28f952f4c2b
FormBook
fff1c46e62b2f3a4e202e05aebfc1e7d72b8b3c540912fe18f4b97dc4ab50e55
FormBook
+ 5'111 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://tria.ge/reports/200706-v3ft1sffn6/
Behaviour
Modifies Internet Explorer settings
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: MapViewOfSection
Suspicious use of SendNotifyMessage
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: MapViewOfSection
Drops file in Program Files directory
Suspicious use of SetThreadContext
Suspicious use of SetThreadContext
Adds Run entry to start application
Reads user/profile data of web browsers
Deletes itself
Please note that we are no longer able to provide a coverage score for Virus Total.

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
Rule name:win_formbook_g0
Create hunting rule
Author:Slavo Greminger, SWITCH-CERT

File information

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

Malspam

FormBook

arj 7f9ddd5ee15cad6dcd9a4b0327504856676258f0cdcf6af29596b1dcbf0a64f5

FormBook

Executable exe ca3ab25a8c3213aa08113b09cc4b60df1d2c440aeb0e02c1e3bd192a57f86208

(this sample)

  
Dropped by
MD5 a454983301213648c0ad9321cd55b0e8
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 7f9ddd5ee15cad6dcd9a4b0327504856676258f0cdcf6af29596b1dcbf0a64f5
Cape
Cape
https://www.capesandbox.com/analysis/20839/

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