MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cbf93b2bacf9e0aa11ff45a7b39541bf47da07574c778fee8a0a9e2ce21c5993. 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: 14

Intelligence 14 IOCs YARA 22 File information Comments

SHA256 hash:	cbf93b2bacf9e0aa11ff45a7b39541bf47da07574c778fee8a0a9e2ce21c5993
SHA3-384 hash:	490fbd7fdcf6d3e5147c7e7c829cb2913b124b9e646bf3bff8381fe85e8155e7364c0149a1b885881b5edf634f241da0
SHA1 hash:	78783cdc74693e381e4829b586347dc42faa6fb0
MD5 hash:	ecbcbe7b7fc38a9199ed2adc93543cd5
humanhash:	eleven-steak-nebraska-apart
File name:	EFT-17363849 numarali 10000.00 tutarli surecin dekontu,PDF.exe
Download:	download sample
Signature	Formbook Create hunting rule
File size:	579'072 bytes
First seen:	2023-11-22 21:04:21 UTC
Last seen:	2023-11-22 22:28:00 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep	12288:hy8oEDUranTiF0Ovtpi+N8AuMDHZYnu2o/cTy7UTa:hFFeanW/T/u5nu7RwTa
Threatray	300 similar samples on MalwareBazaar
TLSH	T166C42308916DC3E0C91894F75CF681F7877EB90002DBF59A1D9921BCA1B3B6E4F18E69
TrID	63.0% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 11.2% (.SCR) Windows screen saver (13097/50/3) 9.0% (.EXE) Win64 Executable (generic) (10523/12/4) 5.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 3.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):
dhash icon	15cce4f4d0d8cc53 (12 x Formbook, 5 x AgentTesla, 3 x RemcosRAT)
Reporter	Anonymous
Tags:	exe FormBook

Intelligence

File Origin

# of uploads :

# of downloads :

334

Origin country :

Vendor Threat Intelligence

Detection:

Formbook

Link:

https://www.capesandbox.com/analysis/459762/

Detection(s):

SecuriteInfo.com.Trojan.Inject4.59820.26098.13555.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

Creating a window

Sending a custom TCP request

Unauthorized injection to a recently created process

Restart of the analyzed sample

Creating a file

Сreating synchronization primitives

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

packed

Link:

https://www.filescan.io/uploads/655e6d114ad9ae08369c2e3b/reports/6767afeb-aae7-4857-ae76-76e00d478fcf/overview

Verdict:

Malicious

Labled as:

Win/malicious_confidence_100%

Link:

https://www.hybrid-analysis.com/sample/cbf93b2bacf9e0aa11ff45a7b39541bf47da07574c778fee8a0a9e2ce21c5993

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.

Malware family:

Formbook

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/f35a556a-e83c-42bc-b2a4-83fe12de7782

Result

Threat name:

FormBook

Detection:

malicious

Classification:

troj.evad

Score:

88 / 100

Link:

https://www.joesandbox.com/analysis/1346609

Signature

.NET source code contains potential unpacker

.NET source code contains very large array initializations

Injects a PE file into a foreign processes

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for submitted file

Yara detected AntiVM3

Yara detected FormBook

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/cbf93b2bacf9e0aa11ff45a7b39541bf47da07574c778fee8a0a9e2ce21c5993

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/cbf93b2bacf9e0aa11ff45a7b39541bf47da07574c778fee8a0a9e2ce21c5993/

Threat name:

ByteCode-MSIL.Trojan.AgentTesla

Status:

Malicious

First seen:

2023-11-22 07:52:02 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

24 of 37 (64.86%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=zp4twk5m7hqkuep7iwt3hfkbx5d5ub2xjr3y73ukbkpczyq4lgjq._file

Verdict:

malicious

Label(s):

formbook

Formbook

29747217bce30303d61906054f220ec42a5895938db61bf39d1b541db15ac47b

Formbook

38687f648dac2391e0d3510baab25f8ae4272a41d2f378314a36a52362f7d442

Formbook

80bb6faabfb8cfdfc6f858a50b3893f0df49b414087619470cafce4ea26af74c

Formbook

ad75b282d723aca18196bbafaf8cce4901aa56b696967fd652fc163e1c0fc9ee

Formbook

ad88ebe85ec15202272324207b4d11133e9f52c076435ea45d181590bff8e179

Formbook

e12bb875c395c4575c2482f653fd3005cc564a244e027f47218c99569c22ccf2

Formbook

+ 290 additional samples on MalwareBazaar

Result

Malware family:

n/a

Score:

7/10

Tags:

n/a

Link:

https://tria.ge/reports/231122-zw6caafc9v/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious use of SetThreadContext

Checks computer location settings

Unpacked files

SH256 hash:

e2710c2d8d002b8156e112ed1c4281314c5d3114bbeaa769b68cf09633bf79c5

MD5 hash:

0b88c2cf6090c99d17dd5c98df86b2f9

SHA1 hash:

6484f6d9c0dc729ee79d40d84d60ec8b3439b4aa

Detections:

win_formbook_w0

win_formbook_g0

Link:

https://www.unpac.me/results/b6710d30-003f-4fb7-b191-6afd9dd60e8b/

Parent samples :

6a5fb47fa51f3c9fda9c9b2646a5d0b7d35ea2447e1c144131f2819d49e73518
5762d46e91e94d731bb4f1047a3d080b27be1b34d05236e8c8f24b24238545fd
89c067236782e5c962ac5f4b18f76b962d9e4bd9e91c50871252380bb90e3a89
738bddac3a99456ddf5662b18a963a9b96f9353b826b15367d9aa21520ee0a59
ad88ebe85ec15202272324207b4d11133e9f52c076435ea45d181590bff8e179
e12bb875c395c4575c2482f653fd3005cc564a244e027f47218c99569c22ccf2
2379a4e1ccdd7849ad7ea9e11ee55b2052e58dda4628cd4e28c3378de503de23
ad75b282d723aca18196bbafaf8cce4901aa56b696967fd652fc163e1c0fc9ee
80bb6faabfb8cfdfc6f858a50b3893f0df49b414087619470cafce4ea26af74c
29747217bce30303d61906054f220ec42a5895938db61bf39d1b541db15ac47b
38687f648dac2391e0d3510baab25f8ae4272a41d2f378314a36a52362f7d442
cbf93b2bacf9e0aa11ff45a7b39541bf47da07574c778fee8a0a9e2ce21c5993
e72b90cdd75e9fcc56f6a017cb0b496ad0292bf4eb58d5f82ea51f98d7472e13
d07898b300b08a5bf93a6814e095476aa8ee8161e61a4d1a822640c69321b655
871a29a5b20d5534205d177ec159eb6984e1b543b31d66f5d2110838e50fb86e

SH256 hash:

a415414e68d200b7ba63c49c7e6df646d04c5859b1aab6ce0393c505f8fc9b1c

MD5 hash:

a9a8418c823334769794df3c4d967962

SHA1 hash:

aa2e724493d4f57186c4fd0ae1bc20ce4406776b

Link:

https://www.unpac.me/results/b6710d30-003f-4fb7-b191-6afd9dd60e8b/

SH256 hash:

3fc435481d7ef0079bdad4dd86185e61a5092a5df4a3e17a75266cf283effaa1

MD5 hash:

ead80ad88662af6f37f0c49fe6e3fb44

SHA1 hash:

dbeb4019c7337347d1c6d0913c9249021cafd849

Link:

https://www.unpac.me/results/b6710d30-003f-4fb7-b191-6afd9dd60e8b/

SH256 hash:

fa31bf7774fbb40b3d6e4d54cd532dfa24f81ba6ebd10ac331c6c35999e6330c

MD5 hash:

75f255a8a448fd93cd0368c39ff84086

SHA1 hash:

d45c5f282377e084370d9f9e7b62ffd5dbd992c4

Link:

https://www.unpac.me/results/b6710d30-003f-4fb7-b191-6afd9dd60e8b/

SH256 hash:

d01f3dea3851602ba5a0586c60430d286adf6fcc7e17aab080601a66630606e5

MD5 hash:

579197d4f760148a9482d1ebde113259

SHA1 hash:

cf6924eb360c7e5a117323bebcb6ee02d2aec86d

Link:

https://www.unpac.me/results/b6710d30-003f-4fb7-b191-6afd9dd60e8b/

SH256 hash:

cbf93b2bacf9e0aa11ff45a7b39541bf47da07574c778fee8a0a9e2ce21c5993

MD5 hash:

ecbcbe7b7fc38a9199ed2adc93543cd5

SHA1 hash:

78783cdc74693e381e4829b586347dc42faa6fb0

Link:

https://www.unpac.me/results/b6710d30-003f-4fb7-b191-6afd9dd60e8b/

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/cbf93b2bacf9/report/overview.html

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

Malicious File

Score:

0.96

Link:

https://yomi.yoroi.company/submissions/cbf93b2bacf9e0aa11ff45a7b39541bf47da07574c778fee8a0a9e2ce21c5993

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

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

exe cbf93b2bacf9e0aa11ff45a7b39541bf47da07574c778fee8a0a9e2ce21c5993

(this sample)

Delivery method

Distributed via e-mail attachment

Cape

https://www.capesandbox.com/analysis/459762/

Comments

Login required

You need to login to in order to write a comment. Login with your abuse.ch account.

No comments found for this malware sample