MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f43ff8bb143f6da24863c080bba19cb1c8f2356ae1ce72dac146acfca67885ce. 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: 6


Intelligence 6 IOCs YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f43ff8bb143f6da24863c080bba19cb1c8f2356ae1ce72dac146acfca67885ce
SHA3-384 hash: e7950604990f9cee3b4939daf7186b21dae7ece646fa3357c7b4a17fc8b7486c287617771667dfa0c4c3a072d44ccb92
SHA1 hash: e514327778130a1c3a37eb637fac6f5b28030be9
MD5 hash: a4f42034904b39478ddc486c0b14e2e4
humanhash: juliet-helium-twelve-fanta
File name:Invoice.rar
Download: download sample
Signature Formbook
Create hunting rule
File size:279'463 bytes
First seen:2023-07-12 06:22:51 UTC
Last seen:2023-07-12 06:24:42 UTC
File type: rar
MIME type:application/x-rar
ssdeep 6144:QeTuyr9tHTv2Q4R+3zQJYioIB7H42ECKRwN/wssdC5Ntw6y5VKetA1Z9v:pT3nHjb4k3EJYOY2ZKRM/sw5jw6s+Pv
TLSH T1025423B5B1367B34E0B3CBA498F0F5669A9C30A585CF034549F1D4C748B26E342A6AB7
TrID 61.5% (.RAR) RAR compressed archive (v5.0) (8000/1)
38.4% (.RAR) RAR compressed archive (gen) (5000/1)
Reporter cocaman
Tags:FormBook INVOICE rar


Avatar
cocaman
Malicious email (T1566.001)
From: ""Joyston Lobo" <ahandu@visvero.com>" (likely spoofed)
Received: "from visvero.com (unknown [45.137.22.135]) "
Date: "11 Jul 2023 23:40:57 +0200"
Subject: "LPO NO: MAV/2023/2419REV-0 Proforma Invoice"
Attachment: "Invoice.rar"

Intelligence

File Origin
# of uploads :
2
# of downloads :
102
Origin country :
CH CH
File Archive Information

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

File name:Invoice.exe
File size:295'386 bytes
SHA256 hash: 84291d10881f84cd06dd28dc30dfe76d6b8c8920f0dc63e7b068a5a03699bd90
MD5 hash: b6a83e939d77b59e15d211d4643422df
MIME type:application/x-dosexec
Signature Formbook
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Malware.27502.Rar5Heur.UNOFFICIAL
Create hunting rule

Result
Verdict:
Unknown
File Type:
PE File
Link:
https://app.docguard.net/f43ff8bb143f6da24863c080bba19cb1c8f2356ae1ce72dac146acfca67885ce/results/dashboard
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control lolbin masquerade overlay packed shell32
Link:
https://www.filescan.io/uploads/64ae46ca57d1eb6a904f1e2f/reports/8ac050f1-28ab-4ac2-b6de-ed282de171ab/overview
Verdict:
Malicious
Labled as:
Trojan.Generic
Link:
https://www.hybrid-analysis.com/sample/f43ff8bb143f6da24863c080bba19cb1c8f2356ae1ce72dac146acfca67885ce
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.
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f43ff8bb143f6da24863c080bba19cb1c8f2356ae1ce72dac146acfca67885ce/
Threat name:
Win32.Trojan.Leonem
Create hunting rule
Status:
Malicious
First seen:
2023-07-11 21:06:14 UTC
File Type:
Binary (Archive)
Extracted files:
4
AV detection:
19 of 37 (51.35%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=6q77royuh5w2esddycalxim4whepenlk4hhhfwwbi2wpzjtyqxha._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/230712-g8xa2adc2t/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Loads dropped DLL
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: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: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

rar f43ff8bb143f6da24863c080bba19cb1c8f2356ae1ce72dac146acfca67885ce

(this sample)

Formbook

Executable exe 84291d10881f84cd06dd28dc30dfe76d6b8c8920f0dc63e7b068a5a03699bd90

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 84291d10881f84cd06dd28dc30dfe76d6b8c8920f0dc63e7b068a5a03699bd90
  
Dropping
Formbook
  
Dropping
MD5 b6a83e939d77b59e15d211d4643422df

Comments