MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 400ac8682d2eb81d4d1a75212ff4b3da9b9787971823f21b5d3a65ebff86120d. 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: 17

Intelligence 17 IOCs YARA 21 File information Comments

SHA256 hash:	400ac8682d2eb81d4d1a75212ff4b3da9b9787971823f21b5d3a65ebff86120d
SHA3-384 hash:	8ae01e09562d5de909c80a291bbaabef0e86ba21412140c1c59e82f911bdf93a3b17912b5015e5b3f3c3c765524b3371
SHA1 hash:	273b5325f051cd415ea6eb0b55ef0c26604d555e
MD5 hash:	8a9197140eabcae457eece18a00e91fb
humanhash:	four-pluto-solar-mobile
File name:	400ac8682d2eb81d4d1a75212ff4b3da9b9787971823f21b5d3a65ebff86120d
Download:	download sample
Signature	Formbook Create hunting rule
File size:	1'267'712 bytes
First seen:	2025-11-06 11:27:10 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	1895460fffad9475fda0c84755ecfee1 (309 x Formbook, 53 x AgentTesla, 36 x SnakeKeylogger)
ssdeep	24576:e5EmXFtKaL4/oFe5T9yyXYfP1ijXdaIQ7MiA03kFzS/0Ob4ha:ePVt/LZeJbInQRaIyMY30
Threatray	2'092 similar samples on MalwareBazaar
TLSH	T17345CF0273D1C062FFAB96334F5AF6115BBC7A260123A62F13981979BD701B1563E7A3
TrID	40.3% (.EXE) Win64 Executable (generic) (10522/11/4) 19.3% (.EXE) Win16 NE executable (generic) (5038/12/1) 17.2% (.EXE) Win32 Executable (generic) (4504/4/1) 7.7% (.EXE) OS/2 Executable (generic) (2029/13) 7.6% (.EXE) Generic Win/DOS Executable (2002/3)
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:

400ac8682d2eb81d4d1a75212ff4b3da9b9787971823f21b5d3a65ebff86120d

Verdict:

Malicious activity

Analysis date:

2025-11-06 21:21:10 UTC

Tags:

autoit

Link:

https://app.any.run/tasks/e098f37c-1f1c-4497-9cb4-5e711d137297

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/36190/

Detection(s):

SecuriteInfo.com.Win32.Trojan.Agent.35E5V6.UNOFFICIAL

Verdict:

Malicious

Score:

96.5%

Link:

https://cyber-fortress.com/docs/result/index.php?id=690c865cea0f3e915c239086

Tags:

autoit emotet

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Creating a file in the %temp% directory

Launching a process

Сreating synchronization primitives

Unauthorized injection to a system process

Gathering data

Verdict:

Malicious

Labled as:

Win/malicious_confidence_100%

Link:

https://www.hybrid-analysis.com/sample/400ac8682d2eb81d4d1a75212ff4b3da9b9787971823f21b5d3a65ebff86120d

Verdict:

Malicious

File Type:

exe x32

First seen:

2025-10-27T08:49:00Z UTC

Last seen:

2025-11-06T18:20:00Z UTC

Hits:

~1000

Link:

https://opentip.kaspersky.com/400ac8682d2eb81d4d1a75212ff4b3da9b9787971823f21b5d3a65ebff86120d/results?tab=lookup

Malware family:

Formbook

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/897b90d2-74dd-4bf1-bd4f-47d9c35c4615

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/400ac8682d2eb81d4d1a75212ff4b3da9b9787971823f21b5d3a65ebff86120d

Verdict:

Malware

YARA:

7 match(es)

Tags:

AutoIt Decompiled Executable PDB Path PE (Portable Executable) PE File Layout Suspect Win 32 Exe x86

Link:

https://app.malva.re/file/8a9197140eabcae457eece18a00e91fb

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/400ac8682d2eb81d4d1a75212ff4b3da9b9787971823f21b5d3a65ebff86120d/

Threat name:

Win32.Trojan.Swotter

Status:

Malicious

First seen:

2025-10-27 11:58:28 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

20 of 24 (83.33%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=iafmq2bnf24b2ti2ouqs75ft3knzpb4xdar7eg25hjs6x74gcigq._file

Verdict:

malicious

Label(s):

formbook

Formbook

336b45d6525d7f84650bedc820b46047a465bb14c2e6f7829a45be9436b363d6

Formbook

40eb95d0ad64a1451d51d018778573335e94e4a28fc044c629795ef7f6caede8

Formbook

5c9a6fed3fd78b68420b26dcfcb6775b1fb49c8f49a25ceb3311bcb1beeb4bd0

Formbook

6a552490f5fe075731262f257c9d49392da0534935d28492bcb8a3d8fa41bb0d

Formbook

9b6137a8a2aab203501a3131ae0aea965acf9afde14a739a5dbb5f5e7b08bfe1

Formbook

b486ec0314eabf1bd79a42201829893561d949978e264bcaec545ba7f1b25f10

Formbook

b9404b68730c9f6c3f7aa156bec2374f76e64d1526512d87ff5451f823da8185

Formbook

cef704d7865892c9752273badf9c9cc765448e69610a161b1e61f30239d730a4

Formbook

+ 2'082 additional samples on MalwareBazaar

Result

Malware family:

formbook

Score:

10/10

Tags:

family:formbook discovery rat spyware stealer trojan

Link:

https://tria.ge/reports/251106-nknsbaam7t/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

Program crash

System Location Discovery: System Language Discovery

Suspicious use of SetThreadContext

Formbook payload

Formbook

Formbook family

Verdict:

Malicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/64b8e4b3-5962-438b-b282-be2e6ca5467f

Unpacked files

SH256 hash:

400ac8682d2eb81d4d1a75212ff4b3da9b9787971823f21b5d3a65ebff86120d

MD5 hash:

8a9197140eabcae457eece18a00e91fb

SHA1 hash:

273b5325f051cd415ea6eb0b55ef0c26604d555e

Link:

https://www.unpac.me/results/a649460d-e819-4cb0-86bd-21739e21c6ce/

SH256 hash:

332c010d3fd0bf7e0fe5727a75787fdfe6d46c13b1f3499691d7d534eb9fd547

MD5 hash:

5ac4bc707f2edeadf7ae1f78105ecadf

SHA1 hash:

c98b1a1fa8f2cb344fabaf280b53ff2c8f88b3d7

Link:

https://www.unpac.me/results/a649460d-e819-4cb0-86bd-21739e21c6ce/

SH256 hash:

a3adeeeeae2da66eb68d98dfe0844750e75cc77a743e8c55df163d4d74619e64

MD5 hash:

c16a25429b082738b8f1da0bad75b516

SHA1 hash:

5eca65a50ab7f07481937aa8262d3ebcfbe65dbd

Detections:

win_formbook_g0

Link:

https://www.unpac.me/results/a649460d-e819-4cb0-86bd-21739e21c6ce/

Parent samples :

9b6137a8a2aab203501a3131ae0aea965acf9afde14a739a5dbb5f5e7b08bfe1
cef704d7865892c9752273badf9c9cc765448e69610a161b1e61f30239d730a4
98136b07dbeb94aad3d16faf1387c063a44eed9bc0c6a7befae44fcfc22a60f8
3e196c25cf20db735613b0dea47af7aed5af92939b08b076227aa6447b230ecf
768840db2049909af3e535ec4ebf2c60883fb9cda5ac3e4d0fe33a04f144b43a
400ac8682d2eb81d4d1a75212ff4b3da9b9787971823f21b5d3a65ebff86120d
918564e95d999323bcd307cdf53fc2d4150fc91b2765052985921d87b1640d88

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/400ac8682d2eb81d4d1a75212ff4b3da9b9787971823f21b5d3a65ebff86120d

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:	AutoIT_Compiled Create hunting rule
Author:	@bartblaze
Description:	Identifies compiled AutoIT script (as EXE). This rule by itself does NOT necessarily mean the detected file is malicious.

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

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:	pe_detect_tls_callbacks 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:	TH_Generic_MassHunt_Win_Malware_2025_CYFARE Create hunting rule
Author:	CYFARE
Description:	Generic Windows malware mass-hunt rule - 2025
Reference:	https://cyfare.net/

Rule name:	TH_Win_ETW_Bypass_2025_CYFARE Create hunting rule
Author:	CYFARE
Description:	Windows ETW Bypass Detection Rule - 2025
Reference:	https://cyfare.net/

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/36190/

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