MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cf7a6439b00603e72fb87b2a6368ad646cb4787e075a4b5c4a2e31af71f4cdcd. 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 7 File information Comments

SHA256 hash:	cf7a6439b00603e72fb87b2a6368ad646cb4787e075a4b5c4a2e31af71f4cdcd
SHA3-384 hash:	8a31796fca2bb968a8da5e01cb9726a310474ae99ead24c54668499423b771cbc47d86d8e8bcdeb7b3e142091f7d4d29
SHA1 hash:	9d6210836e0c4f87d48c0588c6743668f1044480
MD5 hash:	26de6589ae2b57be90c313b085997d5d
humanhash:	robert-alpha-mountain-magazine
File name:	PO#6910000309.rar
Download:	download sample
Signature	Formbook Create hunting rule
File size:	550'913 bytes
First seen:	2025-03-11 07:59:35 UTC
Last seen:	2025-03-11 08:08:04 UTC
File type:	rar
MIME type:	application/x-rar
ssdeep	12288:yHPZMcdB0EHimf7HaQOK53qYk/IqTun7vAzXAhw0oSj:yHhxBjl7VBy/IqI7vAzXA3oSj
TLSH	T1F1C4332BE89F142323B5D576D323E7772726C2E0C3CA6CCD60656BC046A79647F1E982
TrID	61.5% (.RAR) RAR compressed archive (v5.0) (8000/1) 38.4% (.RAR) RAR compressed archive (gen) (5000/1)
Magika	rar
Reporter	cocaman
Tags:	FormBook rar

cocaman

Malicious email (T1566.001)
From: "Cindy <mail@nuevotec.com>" (likely spoofed)
Received: "from nuevotec.com (unknown [45.144.212.136]) "
Date: "11 Mar 2025 08:30:57 -0700"
Subject: "Re: New Order & Contract 90878900653 "
Attachment: "PO#6910000309.rar"

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

File Archive Information

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

File name:	PO#6910000309.exe
File size:	597'504 bytes
SHA256 hash:	22d92af6c8a273dc5a9e69e37ccfb5ffe6e7d7f0c7a46ee6b9f7e5cb34402128
MD5 hash:	7d306e85271cd072f49871b8ab0cef7b
MIME type:	application/x-dosexec
Signature	Formbook

Vendor Threat Intelligence

Verdict:

Malicious

Score:

97.4%

Link:

https://cyber-fortress.com/docs/result/index.php?id=67ce63c61f777fe306087ad5

Tags:

micro shell msil

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

obfuscated packed packed packer_detected phishing vbnet

Link:

https://www.filescan.io/uploads/67cfeda44a3011c802cd018a/reports/526ae0bd-35e8-437f-a8ba-f50b6d4f9295/overview

Verdict:

Malicious

Labled as:

Ransom.Wacatac

Link:

https://www.hybrid-analysis.com/sample/cf7a6439b00603e72fb87b2a6368ad646cb4787e075a4b5c4a2e31af71f4cdcd

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/cf7a6439b00603e72fb87b2a6368ad646cb4787e075a4b5c4a2e31af71f4cdcd/

Threat name:

ByteCode-MSIL.Trojan.DarkCloud

Status:

Malicious

First seen:

2025-03-10 05:27:35 UTC

File Type:

Binary (Archive)

Extracted files:

AV detection:

23 of 38 (60.53%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=z55gionqayb6ol5ypmvgg2fnmrwli6d6a5newxckfyy264puzxgq._file

Result

Malware family:

formbook

Score:

10/10

Tags:

family:formbook campaign:mg63 discovery execution rat spyware stealer trojan

Link:

https://tria.ge/reports/250311-ld1gesztax/

Behaviour

Modifies registry class

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

Deletes itself

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/cf7a6439b00603e72fb87b2a6368ad646cb4787e075a4b5c4a2e31af71f4cdcd

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:	NETexecutableMicrosoft 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:	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)