MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1b245652f8eb90239d220881931099461279d671ad3c9f386c1c93699a9d4fc5. 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: 12

Intelligence 12 IOCs YARA 22 File information Comments

SHA256 hash:	1b245652f8eb90239d220881931099461279d671ad3c9f386c1c93699a9d4fc5
SHA3-384 hash:	32243be06bf012593a3fc4b1e2c12bb8ea9787822451a9dff420a60b70879597f90cb8d415b2a39b70028affc5cc3b8e
SHA1 hash:	235be68849a4562be150c3b0fbf9030704925331
MD5 hash:	faf2187e3f8d113f88d35022b98dcbde
humanhash:	nine-jig-wyoming-april
File name:	SecuriteInfo.com.Win32.KeyloggerX-gen.32739.16926
Download:	download sample
Signature	Formbook Create hunting rule
File size:	692'736 bytes
First seen:	2023-12-01 21:20:54 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep	12288:HcaIilR6XiceLO+/TO4ofH/QhQGQ56BY90fDkDP9wM1/PTXQQpWEXq3:Hciiuy+/atfsQCBJi9w2/PDQQpW
Threatray	471 similar samples on MalwareBazaar
TLSH	T1DFE423457EBD4B65C5BA07F73EC062080775C60BA9A6E04A4EFF14CE67A27500B61F2B
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)
Reporter	SecuriteInfoCom
Tags:	exe FormBook

Intelligence

File Origin

# of uploads :

# of downloads :

416

Origin country :

Vendor Threat Intelligence

Detection:

Formbook

Link:

https://www.capesandbox.com/analysis/461823/

Detection(s):

SecuriteInfo.com.Win32.KeyloggerX-gen.32739.16926.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

Searching for synchronization primitives

Launching the default Windows debugger (dwwin.exe)

Verdict:

Malicious

Labled as:

Malware

Link:

https://www.hybrid-analysis.com/sample/1b245652f8eb90239d220881931099461279d671ad3c9f386c1c93699a9d4fc5

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/48e28318-79f4-42c0-88fb-cd7869f1f770

Result

Threat name:

FormBook

Detection:

malicious

Classification:

troj.evad

Score:

88 / 100

Link:

https://www.joesandbox.com/analysis/1351756

Behaviour

Behavior Graph:

n/a

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/1b245652f8eb90239d220881931099461279d671ad3c9f386c1c93699a9d4fc5

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/1b245652f8eb90239d220881931099461279d671ad3c9f386c1c93699a9d4fc5/

Threat name:

Win32.Trojan.Generic

Status:

Suspicious

First seen:

2023-12-01 17:05:28 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

15 of 23 (65.22%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=dmsfmuxy5oichhjcbcazgeeziyjhtvtrvu6j6odmdsjwtgu5j7cq._file

Verdict:

malicious

Label(s):

formbook

agenttesla

Formbook

33d4f40d83493428f817717c92af34b335788346735a5563e7ee515993fa8d93

Formbook

af40728c6916a1018b6ac0a6639eb8d357f1253d5ca073b8aebc18dffdb9fac6

Formbook

ebaa05165e9a04e110a016a74016effe016f9e19c83fc73f25ed6b3c49db40d8

Formbook

f925810c89fa8a74336dd667fd0b57e3caf827a0976647a20d655351252b91cd

Formbook

+ 461 additional samples on MalwareBazaar

Result

Malware family:

n/a

Score:

5/10

Tags:

n/a

Link:

https://tria.ge/reports/231201-z7a1hsgc65/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Program crash

Suspicious use of SetThreadContext

Unpacked files

SH256 hash:

41e245bf0dafde03a575b0d3d6581d5f0e59329047da738ddd88b5e19fe38e87

MD5 hash:

6be36044741307f6bd5dfe7f510a84e8

SHA1 hash:

e5c31ea1f7f5a17098a001af2804aea15405766b

Detections:

win_formbook_w0

win_formbook_g0

Link:

https://www.unpac.me/results/7ee41119-0b89-4d3e-9693-6063de4d454c/

Parent samples :

33d4f40d83493428f817717c92af34b335788346735a5563e7ee515993fa8d93
8a396b8151f475d72a31a9897353e57ee18cd5ec5a4cd82d29998940ff71b3a7
1b245652f8eb90239d220881931099461279d671ad3c9f386c1c93699a9d4fc5
5e8b9a3cfcbc1a19ade37e8d246f61d95caf08ce139b6280b77dea376b626ec7
482fe81656515bb2c9d01bb6d5d6497834fdc36758a069616a4c71a995c10aeb
c01f5a812c3ca378bc066a4fbd56d1ceda30f8b051eaaa4941b9af92956fc8e6
be5ea75b6b003e8d06764370ba6a89be22845dec6bcf25a6f2d50c2d478dd214

SH256 hash:

a0f01eaf0772e8a22deec7deaffe23c78790261a8e917005e7796e12f4b89b6d

MD5 hash:

2d194f56ed6fd1e15d977f873b63df83

SHA1 hash:

adf44b215e43477d8e70b942c528a83df3837c7b

Link:

https://www.unpac.me/results/7ee41119-0b89-4d3e-9693-6063de4d454c/

SH256 hash:

7f8f998b781f31b7bfba6d717f00dbe1ccd9eef6959a940b699ac520abc83dae

MD5 hash:

d6c1e87697760ea23299d2cdf42b9e6f

SHA1 hash:

e0e5947d82d4a51cf17dbb32e604e7d63390cd6a

Link:

https://www.unpac.me/results/7ee41119-0b89-4d3e-9693-6063de4d454c/

SH256 hash:

f20e0279022f03712a8dbfbba2ba6b0dfc5a7225498ffd2922a14f53baed59c8

MD5 hash:

b065dabf3c9063d5403d39141c9c6b58

SHA1 hash:

c2ab32a02091f08ece16e054039a54345cc44422

Link:

https://www.unpac.me/results/7ee41119-0b89-4d3e-9693-6063de4d454c/

SH256 hash:

0e8a5f6bd3e915b9d2fae9428730dc5017348d23b622bccbb1971e352052734b

MD5 hash:

56feb04fdc8b0453c62267ac204ed555

SHA1 hash:

7d41fb41cac90bea85cb6691a5945568115cbcbf

Link:

https://www.unpac.me/results/7ee41119-0b89-4d3e-9693-6063de4d454c/

SH256 hash:

b13a50d811ac51cb1c8150e1a920801df06fc1eb4fcbd349c7825d7cd5ca541c

MD5 hash:

38d8a9c844f5451a5c55abd65e1847c0

SHA1 hash:

4c4f87150e09964b03314deacf7a86310a7ace91

Link:

https://www.unpac.me/results/7ee41119-0b89-4d3e-9693-6063de4d454c/

SH256 hash:

1b245652f8eb90239d220881931099461279d671ad3c9f386c1c93699a9d4fc5

MD5 hash:

faf2187e3f8d113f88d35022b98dcbde

SHA1 hash:

235be68849a4562be150c3b0fbf9030704925331

Link:

https://www.unpac.me/results/7ee41119-0b89-4d3e-9693-6063de4d454c/

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/1b245652f8eb90239d220881931099461279d671ad3c9f386c1c93699a9d4fc5

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:	AgentTesla_DIFF_Common_Strings_01 Create hunting rule
Author:	schmidtsz
Description:	Identify partial Agent Tesla strings

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:	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.

Cape

https://www.capesandbox.com/analysis/461823/

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