MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 294292bd5f627f91c050eabadda0803e926e07655f493c7e565e92c09927e7b7. 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 22 File information Comments

SHA256 hash:	294292bd5f627f91c050eabadda0803e926e07655f493c7e565e92c09927e7b7
SHA3-384 hash:	79326d5cb5e2bd05139f1e9d5cb87c73720610038709ddb55b444b5f2ebc1dd566f7e7988f5818433b0759c05f16d80f
SHA1 hash:	f72a57a4f1aafb3a8d591c7176011137cb87f0f2
MD5 hash:	29ed43c6cabbf130c55e1e6c387e0cce
humanhash:	nebraska-alaska-skylark-purple
File name:	SecuriteInfo.com.Trojan.DownLoader45.1747.25664.30022
Download:	download sample
Signature	Formbook Create hunting rule
File size:	870'400 bytes
First seen:	2024-03-04 05:19:43 UTC
Last seen:	2024-03-04 11:49:21 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'737 x AgentTesla, 19'596 x Formbook, 12'241 x SnakeKeylogger)
ssdeep	12288:egjMG/K4bE8e0y0t8/5WKo+6mEQr1wO+bgdsZ14mvX8eLU:VIvv0/tSjoFMCiGyAMeL
TLSH	T1DB05E1A625F846AFF40D08BA90346103CF7252777593E7C5B9DE12FD8F85B912A03E4A
TrID	71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.2% (.EXE) Win64 Executable (generic) (10523/12/4) 6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.3% (.EXE) Win32 Executable (generic) (4504/4/1) 2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):
dhash icon	1071f0e8e8e87130 (2 x AgentTesla, 1 x Formbook)
Reporter	SecuriteInfoCom
Tags:	exe FormBook

Intelligence

File Origin

# of uploads :

# of downloads :

413

Origin country :

Vendor Threat Intelligence

Detection(s):

Porcupine.Malware.58887.UNOFFICIAL

SecuriteInfo.com.Trojan.DownLoader45.1747.25664.30022.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Сreating synchronization primitives

Creating a process with a hidden window

Launching a process

Creating a file

Searching for the window

Adding an exclusion to Microsoft Defender

Unauthorized injection to a system process

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

packed powershell

Link:

https://www.filescan.io/uploads/65e55a03d86c827370ce8d91/reports/f9c73796-8ff1-40b2-b23b-f319cefaf8b8/overview

Verdict:

Unknown

Link:

https://www.hybrid-analysis.com/sample/294292bd5f627f91c050eabadda0803e926e07655f493c7e565e92c09927e7b7

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.

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/d8c683a0-7883-4ea3-849b-aeb12dbb683d

Result

Threat name:

FormBook

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1402321

Signature

.NET source code contains potential unpacker

.NET source code contains very large array initializations

Adds a directory exclusion to Windows Defender

Allocates memory in foreign processes

Antivirus / Scanner detection for submitted sample

Injects a PE file into a foreign processes

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Maps a DLL or memory area into another process

Multi AV Scanner detection for submitted file

Queues an APC in another process (thread injection)

Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments

Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet

Writes to foreign memory regions

Yara detected AntiVM3

Yara detected FormBook

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/294292bd5f627f91c050eabadda0803e926e07655f493c7e565e92c09927e7b7

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/294292bd5f627f91c050eabadda0803e926e07655f493c7e565e92c09927e7b7/

Threat name:

Win32.Trojan.CrypterX

Status:

Malicious

First seen:

2024-03-04 03:40:40 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

24 of 38 (63.16%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=ffbjfpk7mj7zdqcq5k5n3ieah2jg4b3fl5ety7swl2jmbgjh463q._file

Verdict:

unknown

Result

Malware family:

n/a

Score:

7/10

Tags:

n/a

Link:

https://tria.ge/reports/240304-f1ewcabg74/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

Program crash

Suspicious use of SetThreadContext

Checks computer location settings

Unpacked files

SH256 hash:

294292bd5f627f91c050eabadda0803e926e07655f493c7e565e92c09927e7b7

MD5 hash:

29ed43c6cabbf130c55e1e6c387e0cce

SHA1 hash:

f72a57a4f1aafb3a8d591c7176011137cb87f0f2

Link:

https://www.unpac.me/results/3b91f5c2-c99a-4a40-be6e-3c4feefc133d/

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/294292bd5f62/report/overview.html

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.

Rule name:	DebuggerCheck__GlobalFlags Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DebuggerCheck__QueryInfo Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DebuggerHiding__Active Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	DebuggerHiding__Thread Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	Formbook Create hunting rule
Author:	kevoreilly
Description:	Formbook Payload

Rule name:	maldoc_find_kernel32_base_method_1 Create hunting rule
Author:	Didier Stevens (https://DidierStevens.com)

Rule name:	maldoc_getEIP_method_1 Create hunting rule
Author:	Didier Stevens (https://DidierStevens.com)

Rule name:	MD5_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for MD5 constants

Rule name:	meth_get_eip Create hunting rule
Author:	Willi Ballenthin

Rule name:	meth_stackstrings Create hunting rule
Author:	Willi Ballenthin

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:	pe_no_import_table Create hunting rule
Description:	Detect pe file that no import table

Rule name:	RIPEMD160_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for RIPEMD-160 constants

Rule name:	SEH__vectored Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	SHA1_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for SHA1 constants

Rule name:	shellcode Create hunting rule
Author:	nex
Description:	Matched shellcode byte patterns

Rule name:	Skystars_Malware_Imphash Create hunting rule
Author:	Skystars LightDefender
Description:	imphash

Rule name:	Windows_Trojan_Formbook Create hunting rule
Author:	@malgamy12

Rule name:	Windows_Trojan_Formbook_1112e116 Create hunting rule
Author:	Elastic Security
Reference:	https://www.elastic.co/security-labs/formbook-adopts-cab-less-approach

Rule name:	win_formbook_w0 Create hunting rule
Author:	@malgamy12

File information

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

Malspam

Formbook

rar 1d4baa7459988ebd105c483ec100feb84f93f99670468ce957099c4f5794351a

Formbook

exe 294292bd5f627f91c050eabadda0803e926e07655f493c7e565e92c09927e7b7

(this sample)

Dropped by

SHA256 1d4baa7459988ebd105c483ec100feb84f93f99670468ce957099c4f5794351a

Dropped by

MD5 79343f36526a1545c441df293a84e8d1

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings

ID	Title	Severity
CHECK_AUTHENTICODE	Missing Authenticode	high
CHECK_DLL_CHARACTERISTICS	Missing dll Security Characteristics (HIGH_ENTROPY_VA)	high

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