MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ca0509fa76c36ebde7f059f872329178eb2b1307971424c5b3cb33e3242a2e6f. 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: 7

Intelligence 7 IOCs YARA 2 File information Comments

SHA256 hash:	ca0509fa76c36ebde7f059f872329178eb2b1307971424c5b3cb33e3242a2e6f
SHA3-384 hash:	a6d6bb3cee40e70decde81511a077fb10bd966498c8cc79a18c110c5cf4cd505c87a84da6924f54f53d19d8271f59d02
SHA1 hash:	395b9a06056a52e45a45af8bcb61bdaabca4f7d0
MD5 hash:	0b27578b9d4dcac099786e0018af101f
humanhash:	harry-carbon-queen-uniform
File name:	RFQ-003451980.XZ
Download:	download sample
Signature	Formbook Create hunting rule
File size:	731'983 bytes
First seen:	2023-03-24 07:39:02 UTC
Last seen:	Never
File type:	xz
MIME type:	application/x-rar
ssdeep	12288:U+T2jY4C393wTRWnjna6rBrrzFs1bRoBvGDg0cwtXq0AzQgvztDX+U67avx6KYp:U+T2j7YjBrBH61qBv103U5SEwp
TLSH	T1D1F423B0B7C3B06BFE2C4D9C1626CE2EAFEC5DD764B8360395C589D745B58E98AD0102
TrID	61.5% (.RAR) RAR compressed archive (v5.0) (8000/1) 38.4% (.RAR) RAR compressed archive (gen) (5000/1)
Reporter	cocaman
Tags:	FormBook RFQ xz

cocaman

Malicious email (T1566.001)
From: "Lazito Barretto<helen@rileypepler.com>" (likely spoofed)
Received: "from rachel.rileypepler.com (rachel.rileypepler.com [83.137.158.106]) "
Date: "23 Mar 2023 22:30:23 -0700"
Subject: "GMC HEALTHCARE LLC ORDER"
Attachment: "RFQ-003451980.XZ"

Intelligence

File Origin

# of uploads :

# of downloads :

102

Origin country :

n/a

File Archive Information

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

File name:	RFQ-003451980.exe
File size:	810'496 bytes
SHA256 hash:	e1803249e33265318c9f806db079934571ee55c2554e001cee050bea59e06037
MD5 hash:	0cd67eb934ba91045650fee0b4ffed72
MIME type:	application/x-dosexec
Signature	Formbook

Vendor Threat Intelligence

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

packed

Link:

https://www.filescan.io/uploads/641d53981770808abe9b3962/reports/518e58da-2d56-4b5a-8e5a-ec103b3013b0/overview

Verdict:

Suspicious

Labled as:

Mal/DrodRar

Link:

https://www.hybrid-analysis.com/sample/ca0509fa76c36ebde7f059f872329178eb2b1307971424c5b3cb33e3242a2e6f

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/ca0509fa76c36ebde7f059f872329178eb2b1307971424c5b3cb33e3242a2e6f/

Threat name:

ByteCode-MSIL.Trojan.Zmutzy

Status:

Malicious

First seen:

2023-03-24 07:40:09 UTC

File Type:

Binary (Archive)

Extracted files:

AV detection:

11 of 37 (29.73%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=zicqt6twynxl3z7qlh4hemurpdvsweyhs4kcjrntzmz6gjbkfzxq._file

Result

Malware family:

formbook

Score:

10/10

Tags:

family:formbook campaign:h4fa rat spyware stealer trojan

Link:

https://tria.ge/reports/230324-jgz9qach88/

Behaviour

Gathers network information

Modifies registry class

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of WriteProcessMemory

Suspicious use of SetThreadContext

Formbook payload

Formbook

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.