MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b4200046cce33757a5d9624c35cefcd43a2d64adfbc80607f7c26b59bff3034b. 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 11 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b4200046cce33757a5d9624c35cefcd43a2d64adfbc80607f7c26b59bff3034b
SHA3-384 hash: 85b7fcdc1aa80b83291d62e9aa6cebd3936f7e0a1bdc6781f5c8dd3b1fd71c07f344f31b315ae1b1c7d9e0007bc3028e
SHA1 hash: 4796c47af6c340f3f049512b7be77c9794235774
MD5 hash: 971b8218ba2493718e7608f5f23a234a
humanhash: nitrogen-maine-vermont-alaska
File name:PURCHASE ORDER.zip
Download: download sample
Signature Formbook
Create hunting rule
File size:269'646 bytes
First seen:2023-02-13 08:00:56 UTC
Last seen:Never
File type: zip
MIME type:application/zip
ssdeep 6144:q/jUb7bnY9SkEYwOIczjMwshTpCkae18NtOMQa8Q:qrUb/YzEYwOj3MHhTae1g0MbD
TLSH T1C244230F0E2E7D4C8FF847DE70C6EDC00516F9143AA66E3A9869B2526578315CD6B0BE
TrID 80.0% (.ZIP) ZIP compressed archive (4000/1)
20.0% (.PG/BIN) PrintFox/Pagefox bitmap (640x800) (1000/1)
Reporter cocaman
Tags:FormBook zip


Avatar
cocaman
Malicious email (T1566.001)
From: "<info@vibrantgroupqatar.com >" (likely spoofed)
Received: "from hosted-by.rootlayer.net (unknown [45.137.22.136]) "
Date: "11 Feb 2023 08:38:15 +0100"
Subject: "RE: PURCHASE ORDER 121120"
Attachment: "PURCHASE ORDER.zip"

Intelligence

File Origin
# of uploads :
1
# of downloads :
84
Origin country :
n/a
File Archive Information

This file archive contains 1 file(s), sorted by their relevance:

File name:PURCHASE ORDER.exe
File size:284'418 bytes
SHA256 hash: a21c6c623959c4995842ace85f7f5a7e3751c4930d28ebad92c7a737a7f8cfb8
MD5 hash: 3d734fb96e17397d796961993832b394
MIME type:application/x-dosexec
Signature Formbook
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Foxhole.Zip_fs3213.UNOFFICIAL
Create hunting rule

Sanesecurity.Rogue.0hr.20230211-0434.UNOFFICIAL
Create hunting rule

Sanesecurity.Malware.22360.ZipHeur.UNOFFICIAL
Create hunting rule

Gathering data
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/b4200046cce33757a5d9624c35cefcd43a2d64adfbc80607f7c26b59bff3034b
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/b4200046cce33757a5d9624c35cefcd43a2d64adfbc80607f7c26b59bff3034b
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b4200046cce33757a5d9624c35cefcd43a2d64adfbc80607f7c26b59bff3034b/
Threat name:
Win32.Trojan.Zmutzy
Create hunting rule
Status:
Malicious
First seen:
2023-02-11 11:48:50 UTC
File Type:
Binary (Archive)
Extracted files:
4
AV detection:
24 of 37 (64.86%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wqqaarwm4m3vpjozmjgdltx42q5c2zfn7peamb7xyjvvtp7tanfq._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
spyware stealer
Link:
https://tria.ge/reports/230213-l3ydcsce28/
Behaviour
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Suspicious use of SetThreadContext
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Reads user/profile data of web browsers
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/b4200046cce33757a5d9624c35cefcd43a2d64adfbc80607f7c26b59bff3034b

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:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:meth_get_eip
Create hunting rule
Author:Willi Ballenthin
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:SUSP_Archive_Phishing_Attachment_Characteristics_Jun22_1
Create hunting rule
Author:Florian Roth
Description:Detects characteristics of suspicious file names or double extensions often found in phishing mail attachments
Reference:https://twitter.com/0xtoxin/status/1540524891623014400?s=12&t=IQ0OgChk8tAIdTHaPxh0Vg
Rule name:SUSP_Archive_Phishing_Attachment_Characteristics_Jun22_1
Create hunting rule
Author:Florian Roth (Nextron Systems)
Description:Detects characteristics of suspicious file names or double extensions often found in phishing mail attachments
Reference:https://twitter.com/0xtoxin/status/1540524891623014400?s=12&t=IQ0OgChk8tAIdTHaPxh0Vg
Rule name:Windows_Trojan_Formbook
Create hunting rule
Author:@malgamy12
Rule name:Windows_Trojan_Formbook_1112e116
Create hunting rule
Author:Elastic Security
Rule name:win_formbook_auto
Create hunting rule
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.formbook.
Rule name:win_formbook_g0
Create hunting rule
Author:Slavo Greminger, SWITCH-CERT
Rule name:win_formbook_w0
Create hunting rule
Author:@malgamy12

File information

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

Malspam

Formbook

zip b4200046cce33757a5d9624c35cefcd43a2d64adfbc80607f7c26b59bff3034b

(this sample)

Formbook

Executable exe a21c6c623959c4995842ace85f7f5a7e3751c4930d28ebad92c7a737a7f8cfb8

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 a21c6c623959c4995842ace85f7f5a7e3751c4930d28ebad92c7a737a7f8cfb8
  
Dropping
Formbook

Comments