MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ebfb4fdfcd6bfd3af853940bd2630919d6ea001e36038bd9973f6e37599fd44e. 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 2 File information Comments

SHA256 hash:	ebfb4fdfcd6bfd3af853940bd2630919d6ea001e36038bd9973f6e37599fd44e
SHA3-384 hash:	f0b25f76ed7953d71f13bf40984b07b97037e3a68b1f1eea3e8ac0e26b3f8d57b070cdeb4e41285cfd83ae1d78abfc0b
SHA1 hash:	c726f277f4e7f73a39666dcf490abf66d3e992ec
MD5 hash:	c5b4e0c85df51fb948f20bac85b2ecf7
humanhash:	triple-muppet-finch-pasta
File name:	invoice copy.pdf.z
Download:	download sample
Signature	Formbook Create hunting rule
File size:	767'558 bytes
First seen:	2022-04-14 14:01:15 UTC
Last seen:	Never
File type:	z
MIME type:	application/x-rar
ssdeep	12288:F8QmaNaan3da87zH32GsOAPqRERUHmXPdl0USHg6koAdgPkdCjbKoFh/834l8kgx:XNZ3da87zH3MOAPqRmUHm4XHyDe9K4hS
TLSH	T180F433B3AF911EC65122F885B6E14C2FBA4E335057BFD384A97E78281D9B318045F6C6
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 z

cocaman

Malicious email (T1566.001)
From: "finance department <rud-division@alkuhaimi.com>" (likely spoofed)
Received: "from alkuhaimi.com (unknown [45.137.22.245]) "
Date: "14 Apr 2022 12:01:17 +0200"
Subject: "Re: Re: Due invoice"
Attachment: "invoice copy.pdf.z"

Intelligence

File Origin

# of uploads :

# of downloads :

249

Origin country :

n/a

Vendor Threat Intelligence

Verdict:

Suspicious

Threat level:

5/10

Confidence:

100%

Tags:

obfuscated packed replace.exe update.exe

Link:

https://www.filescan.io/uploads/62582964ffe27d5119ced710/reports/27dc13c8-7f3b-4554-ab9c-e88f102dfcc6/overview

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/ebfb4fdfcd6bfd3af853940bd2630919d6ea001e36038bd9973f6e37599fd44e/

Threat name:

ByteCode-MSIL.Trojan.RemLoader

Status:

Malicious

First seen:

2022-04-14 09:34:32 UTC

File Type:

Binary (Archive)

Extracted files:

AV detection:

19 of 41 (46.34%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=5p5u7x6nnp6tv6ctsqf5eyyjdhlouaa6gybyxwmxh5xdowm72rha._file

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/ebfb4fdfcd6bfd3af853940bd2630919d6ea001e36038bd9973f6e37599fd44e

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:	SUSP_RAR_with_PDF_Script_Obfuscation Create hunting rule
Author:	Florian Roth
Description:	Detects RAR file with suspicious .pdf extension prefix to trick users
Reference:	Internal Research

Rule name:	SUSP_RAR_with_PDF_Script_Obfuscation_RID34A4 Create hunting rule
Author:	Florian Roth
Description:	Detects RAR file with suspicious .pdf extension prefix to trick users
Reference:	Internal Research