MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b940e236d07bfe37f26f27a9cd08e5a3038e4b5529fbdfb385723873ba742ce6. 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: 16

Intelligence 16 IOCs YARA 20 File information Comments

SHA256 hash:	b940e236d07bfe37f26f27a9cd08e5a3038e4b5529fbdfb385723873ba742ce6
SHA3-384 hash:	cb112f4c0690456176b1cf3fb188502d4719d08bf60f85f1ffa2d9e78431e899f14b608f8219fb6ddbb4a23039f103f9
SHA1 hash:	4d6330e5f832f8c1dd48891fb9e6952d9e5a131b
MD5 hash:	f711b83e84676ba0dc92721c5e9e7764
humanhash:	freddie-mockingbird-crazy-red
File name:	b940e236d07bfe37f26f27a9cd08e5a3038e4b5529fbdfb385723873ba742ce6
Download:	download sample
Signature	Formbook Create hunting rule
File size:	765'952 bytes
First seen:	2025-10-09 15:12:42 UTC
Last seen:	2025-11-06 10:04:42 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep	12288:WsLybvu/J/lh9/5p/pEpyC0iTHbXxfDHgDXUghb35+dlysGmXMUpzch3AwACcF:WcybvufJphEpf0iNjMk2b35+ny2MUs3G
Threatray	1'881 similar samples on MalwareBazaar
TLSH	T1A0F4020423ADEB03D4B62FF448B0D77557B9AE98A911D21A4EF6ACDF7C28B001D59393
TrID	71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.2% (.EXE) Win64 Executable (generic) (10522/11/4) 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)
Magika	pebin
Reporter	adrian__luca
Tags:	exe FormBook

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

b940e236d07bfe37f26f27a9cd08e5a3038e4b5529fbdfb385723873ba742ce6

Verdict:

No threats detected

Analysis date:

2025-10-10 00:51:43 UTC

Tags:

n/a

Link:

https://app.any.run/tasks/942b4562-4a8c-4dcf-869f-5455f4c833cf

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Detection:

Formbook

Link:

https://www.capesandbox.com/analysis/31887/

Verdict:

Malicious

Score:

93.3%

Link:

https://cyber-fortress.com/docs/result/index.php?id=68e7d41a8b7b147cc4b633fe

Tags:

shell virus msil

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Sending a custom TCP request

Creating a process with a hidden window

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)

Adding an exclusion to Microsoft Defender

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

obfuscated packed packed packer_detected vbnet

Link:

https://www.filescan.io/uploads/68e7f38c7c75fa33a278b596/reports/8e9fc773-446e-46f8-9e63-86d839babaf5/overview

Verdict:

Malicious

Labled as:

Trojan.Generic

Link:

https://www.hybrid-analysis.com/sample/b940e236d07bfe37f26f27a9cd08e5a3038e4b5529fbdfb385723873ba742ce6

Verdict:

Malicious

File Type:

exe x32

First seen:

2025-09-29T12:37:00Z UTC

Last seen:

2025-10-06T11:19:00Z UTC

Hits:

~100

Link:

https://opentip.kaspersky.com/b940e236d07bfe37f26f27a9cd08e5a3038e4b5529fbdfb385723873ba742ce6/results?tab=lookup

Malware family:

Formbook

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/d9810dbe-7edb-45eb-9052-6ed1f5d04fdc

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/b940e236d07bfe37f26f27a9cd08e5a3038e4b5529fbdfb385723873ba742ce6

Gathering data

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/b940e236d07bfe37f26f27a9cd08e5a3038e4b5529fbdfb385723873ba742ce6/

Threat name:

ByteCode-MSIL.Trojan.PureLogStealer

Status:

Malicious

First seen:

2025-09-29 16:33:10 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

28 of 36 (77.78%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=xfaoenwqpp7dp4tpe6u42chfumby4s2vfh557m4foi4hhotuftta._file

Verdict:

malicious

Label(s):

unc_loader_037

unc_loader_078

Formbook

7985040d483f6eca76fb896a97b9e22c594ad6e954f5a03f65c87a7ae8c1192a

Formbook

94f3a5b7cc5784d0be1f7d4c726ea45c5c84a132f7b86a10dee5d63332c5415a

Formbook

ad0a87e7d15323230f7732b7d734abe976d5e6b4e32ec086e7892ca0f67acfe7

Formbook

b3c42ac0d9356260564780ae62be7b241024aa8da3df358f48a1097e6926d86b

Formbook

bb41674ddf9e288e3bf546dae1c5961bf515876dfbd4f78e16bbff0a590cacec

Formbook

bce46d675d57b09b2bf85f109ab3cdd12c7894519b8ba37426601dd18eb03671

Formbook

c374f2998fc7dcbc0c3e559a1dfcdf4b2729a12ea1783ead0624a1553a8bacf1

Formbook

e1115ce415d73e1edbb8b00b0fef88fdaeb8ebc9d99836752e80531a5c2c833c

Formbook

+ 1'871 additional samples on MalwareBazaar

Result

Malware family:

formbook

Score:

10/10

Tags:

family:formbook discovery execution rat spyware stealer trojan

Link:

https://tria.ge/reports/251009-v4xb5ahk9z/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

Program crash

System Location Discovery: System Language Discovery

Suspicious use of SetThreadContext

Checks computer location settings

Command and Scripting Interpreter: PowerShell

Formbook payload

Formbook

Formbook family

Verdict:

Suspicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/6d57ca4a-840c-4e20-bc81-02a1cac1bc4e

Unpacked files

SH256 hash:

b940e236d07bfe37f26f27a9cd08e5a3038e4b5529fbdfb385723873ba742ce6

MD5 hash:

f711b83e84676ba0dc92721c5e9e7764

SHA1 hash:

4d6330e5f832f8c1dd48891fb9e6952d9e5a131b

Link:

https://www.unpac.me/results/81b5ee8c-4a55-4be4-b027-f54daf0ac81d/

SH256 hash:

134e5f48177b1e6aaa456b9cbeccee018feee2222695b73d74fd8ca86b4bfb27

MD5 hash:

bce4f3dff74bd099b181e423d8ad76de

SHA1 hash:

1552e91a184c005c4e71f74d2c7bec6784196b97

Link:

https://www.unpac.me/results/81b5ee8c-4a55-4be4-b027-f54daf0ac81d/

SH256 hash:

d1db0502301c4c2ab8e0d302767d812aa2594521b49a9b62abe323e902c2001a

MD5 hash:

9cc4b65dd1ba9f221ddcbc38592c2b86

SHA1 hash:

aa1125909a1d6390a3793797a9a5c45c172982d6

Detections:

SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24

SUSP_OBF_NET_Reactor_Indicators_Jan24

Link:

https://www.unpac.me/results/81b5ee8c-4a55-4be4-b027-f54daf0ac81d/

SH256 hash:

7c32c98bef725bb66a30f348652841de8102af19c65d34a52e65771ae09e38d1

MD5 hash:

74a92f932bad193caa26b82f16dad7b7

SHA1 hash:

ab4d3edcc4887ad24eceede964e1066e1eb04e76

Link:

https://www.unpac.me/results/81b5ee8c-4a55-4be4-b027-f54daf0ac81d/

SH256 hash:

6b74227e7599ba1678ecdfc59828defd288a57a64920808791dc528f2c4e6c1a

MD5 hash:

187ffe36547bdd8cfbc66dd716dcaa98

SHA1 hash:

5c1c567f2b53404dfaaeaf13174fb4c2725286c1

Detections:

win_formbook_g0

Link:

https://www.unpac.me/results/81b5ee8c-4a55-4be4-b027-f54daf0ac81d/

Parent samples :

bb41674ddf9e288e3bf546dae1c5961bf515876dfbd4f78e16bbff0a590cacec
52aa545f64500659257ce324193e1e2ca1b06fe7e84873bcdca15db4e0aaba1a
66599dea9a4391eed990a634d789da4393ebe7bd33b8a11aef5aeb2bcd4e620e
c8a1503e8dfce4ab2af0bd927f216cda426007cb60f7baa638f4bf4ed74656f8
bac9500e882b2ec0a430edd0a2fe89609f4ccb60befa4c46cb95281c480f3f11
b940e236d07bfe37f26f27a9cd08e5a3038e4b5529fbdfb385723873ba742ce6

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/b940e236d07b/report/overview.html

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/b940e236d07bfe37f26f27a9cd08e5a3038e4b5529fbdfb385723873ba742ce6

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:	CP_AllMal_Detector Create hunting rule
Author:	DiegoAnalytics
Description:	CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication

Rule name:	CP_Script_Inject_Detector Create hunting rule
Author:	DiegoAnalytics
Description:	Detects attempts to inject code into another process across PE, ELF, Mach-O binaries

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:	DetectEncryptedVariants Create hunting rule
Author:	Zinyth
Description:	Detects 'encrypted' in ASCII, Unicode, base64, or hex-encoded

Rule name:	dgaagas Create hunting rule
Author:	Harshit
Description:	Uses certutil.exe to download a file named test.txt

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

Rule name:	golang_bin_JCorn_CSC846 Create hunting rule
Author:	Justin Cornwell
Description:	CSC-846 Golang detection ruleset

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

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

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/31887/

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