MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c81df87277f737b11645601a7f7f24c272bbc3b77936619460bc9c88e13662cd. 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: 8


Intelligence 8 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c81df87277f737b11645601a7f7f24c272bbc3b77936619460bc9c88e13662cd
SHA3-384 hash: a958dda4400e5fa5f850f26c4f38e58175aa80625bc8089942e2369e36b18754573419df54365ac757a46719b157d863
SHA1 hash: cbdd31502d24310588c01419d7ff12d86ec27a2b
MD5 hash: a55f95295e6e4c9c262f6c2fe44a1649
humanhash: happy-south-april-pizza
File name:TT Application Copy for payment.zip
Download: download sample
Signature Formbook
Create hunting rule
File size:605'733 bytes
First seen:2023-10-30 15:17:28 UTC
Last seen:Never
File type: zip
MIME type:application/zip
ssdeep 12288:5elPITUMzc4CKXMo868BUvTIriYUs/nz6WyB9gmgh18Yf8EO2UM:5BTUMojKXMEcUvTW/N7+B9gn1aEO2p
TLSH T11AD4237825828E0651BFF40F3EA0787EA3B0C068AB7703544DBE1EB74B6595582DC9B7
TrID 80.0% (.ZIP) ZIP compressed archive (4000/1)
20.0% (.PG/BIN) PrintFox/Pagefox bitmap (640x800) (1000/1)
Reporter cocaman
Tags:FormBook payment zip


Avatar
cocaman
Malicious email (T1566.001)
From: ""TEMP1 SG SIN" <temp1@ekmtc.com>" (likely spoofed)
Received: "from ekmtc.com (unknown [79.110.62.128]) "
Date: "30 Oct 2023 16:15:29 +0100"
Subject: "TT Application Copy for payment"
Attachment: "TT Application Copy for payment.zip"

Intelligence

File Origin
# of uploads :
1
# of downloads :
107
Origin country :
CH CH
File Archive Information

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

File name:TT Application Copy for payment.exe
File size:641'024 bytes
SHA256 hash: 22da6798edf7ecbc018e132ff61dff54b38704226c0f4693e8981b112e69eafc
MD5 hash: ed2fce4f08d4b4ebbc737100e1a9f656
MIME type:application/x-dosexec
Signature Formbook
Vendor Threat Intelligence
Detection(s):
Sanesecurity.Foxhole.Zip_fs3293.UNOFFICIAL
Create hunting rule

Result
Verdict:
Unknown
File Type:
PE File
Link:
https://app.docguard.net/c81df87277f737b11645601a7f7f24c272bbc3b77936619460bc9c88e13662cd/results/dashboard
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
masquerade packed
Link:
https://www.filescan.io/uploads/653fc92a34de31f579ce0865/reports/77606ba3-7c92-4a45-a179-17d76fa9ad9c/overview
Verdict:
Malicious
Labled as:
Troj/Krypt
Link:
https://www.hybrid-analysis.com/sample/c81df87277f737b11645601a7f7f24c272bbc3b77936619460bc9c88e13662cd
Result
Verdict:
MALICIOUS
Link:
https://labs.inquest.net/dfi/sha256/c81df87277f737b11645601a7f7f24c272bbc3b77936619460bc9c88e13662cd
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Score:
100%
Verdict:
Malware
File Type:
Archive
Link:
https://malprob.io/report/c81df87277f737b11645601a7f7f24c272bbc3b77936619460bc9c88e13662cd
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c81df87277f737b11645601a7f7f24c272bbc3b77936619460bc9c88e13662cd/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2023-10-30 13:38:35 UTC
File Type:
Binary (Archive)
Extracted files:
20
AV detection:
20 of 23 (86.96%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=zao7q4tx6433cfsfmanh67zeyjzlxq5xpe3gdfdaxsoiryjwmlgq._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
n/a
Link:
https://tria.ge/reports/231030-thcvxsea31/
Behaviour
Creates scheduled task(s)
Modifies Internet Explorer settings
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
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.
Threat name:
Formbook
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/c81df87277f737b11645601a7f7f24c272bbc3b77936619460bc9c88e13662cd

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:NET
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Malspam

Formbook

zip c81df87277f737b11645601a7f7f24c272bbc3b77936619460bc9c88e13662cd

(this sample)

Formbook

Executable exe 22da6798edf7ecbc018e132ff61dff54b38704226c0f4693e8981b112e69eafc

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 22da6798edf7ecbc018e132ff61dff54b38704226c0f4693e8981b112e69eafc
  
Dropping
Formbook
  
Dropping
MD5 ed2fce4f08d4b4ebbc737100e1a9f656

Comments