MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 aa349231ea23c5b67cffe342631c97dc97fe6e1e02a0661fcb8c1c1d24bbfcfe. 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: 9


Intelligence 9 IOCs YARA 12 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: aa349231ea23c5b67cffe342631c97dc97fe6e1e02a0661fcb8c1c1d24bbfcfe
SHA3-384 hash: ed787691a79fde5b6d1a327e727b2cdec744c5c0d529fb5eb8c7c8a87da2e9acf0c99ef765c5bd0794efd9d6e4700b61
SHA1 hash: 846b7af655b21b0edb07e27810b6c527eff8b98f
MD5 hash: e80fd97e7eccd93bd26673062dda7e40
humanhash: may-black-seven-tennessee
File name:SWIFT.zip
Download: download sample
Signature Formbook
Create hunting rule
File size:800'603 bytes
First seen:2025-03-13 10:41:50 UTC
Last seen:Never
File type: zip
MIME type:application/zip
ssdeep 24576:2otvwhra+1rFOrluGcKawqqW4ICnD5nZm:xtaPOrluGcmfQe5n4
TLSH T16A0523D34B5E06971B19923329D5CD3258E3210A2293EA5BBF9FB4F064ED5068FB0B47
Magika zip
Reporter cocaman
Tags:FormBook SWIFT zip


Avatar
cocaman
Malicious email (T1566.001)
From: "gdansk@muehlhan.com" (likely spoofed)
Received: "from [195.211.191.129] (unknown [195.211.191.129]) "
Date: "13 Mar 2025 03:41:12 -0700"
Subject: "RE: SWIFT"
Attachment: "SWIFT.zip"

Intelligence

File Origin
# of uploads :
1
# of downloads :
442
Origin country :
CH CH
File Archive Information

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

File name:xrNDP8ydHiSLVec.exe
File size:871'936 bytes
SHA256 hash: f5bf548a92e16ade13e22e9def6ba5bc424c9ff797570e5992b615d9adce311c
MD5 hash: 1b0ba023c6d5a79557e2d25b3d22131b
MIME type:application/x-dosexec
Signature Formbook
Vendor Threat Intelligence
Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67d2b7fd3962f1a6f470c574
Tags:
virus krypt msil
Result
Verdict:
Unknown
File Type:
PE File
Link:
https://app.docguard.net/aa349231ea23c5b67cffe342631c97dc97fe6e1e02a0661fcb8c1c1d24bbfcfe/results/dashboard
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed packed packer_detected vbnet
Link:
https://www.filescan.io/uploads/67d2b68de95d0f9029e8c1c9/reports/f2a34b1f-7612-492b-bb39-04261f0f5076/overview
Verdict:
Suspicious
Labled as:
Troj/Krypt
Link:
https://www.hybrid-analysis.com/sample/aa349231ea23c5b67cffe342631c97dc97fe6e1e02a0661fcb8c1c1d24bbfcfe
Result
Verdict:
UNKNOWN
Link:
https://labs.inquest.net/dfi/sha256/aa349231ea23c5b67cffe342631c97dc97fe6e1e02a0661fcb8c1c1d24bbfcfe
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/aa349231ea23c5b67cffe342631c97dc97fe6e1e02a0661fcb8c1c1d24bbfcfe
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/aa349231ea23c5b67cffe342631c97dc97fe6e1e02a0661fcb8c1c1d24bbfcfe/
Threat name:
Win32.Backdoor.FormBook
Create hunting rule
Status:
Suspicious
First seen:
2025-03-13 09:19:38 UTC
File Type:
Binary (Archive)
Extracted files:
17
AV detection:
23 of 38 (60.53%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=vi2jempkepc3m7h74nbgghex3sl743q6akqgmh6lrqob2jf37t7a._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:my18 discovery execution rat spyware stealer trojan
Link:
https://tria.ge/reports/250313-pxx27asyfz/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of UnmapMainImage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Checks computer location settings
Command and Scripting Interpreter: PowerShell
Formbook payload
Formbook
Formbook family
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/aa349231ea23c5b67cffe342631c97dc97fe6e1e02a0661fcb8c1c1d24bbfcfe

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:AgentTesla_DIFF_Common_Strings_01
Create hunting rule
Author:schmidtsz
Description:Identify partial Agent Tesla strings
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
Rule name:Suspicious_Latam_MSI_and_ZIP_Files
Create hunting rule
Author:eremit4, P4nd3m1cb0y
Description:Detects suspicious .msi and .zip files used in Latam banking trojan campaigns.
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:win32_dotnet_form_obfuscate
Create hunting rule
Author:Reedus0
Description:Rule for detecting .NET form obfuscate malware

File information

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

Malspam

Formbook

zip aa349231ea23c5b67cffe342631c97dc97fe6e1e02a0661fcb8c1c1d24bbfcfe

(this sample)

Formbook

Executable exe f5bf548a92e16ade13e22e9def6ba5bc424c9ff797570e5992b615d9adce311c

  
Delivery method
Distributed via e-mail attachment
  
Dropping
SHA256 f5bf548a92e16ade13e22e9def6ba5bc424c9ff797570e5992b615d9adce311c
  
Dropping
MD5 1b0ba023c6d5a79557e2d25b3d22131b

Comments