MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d13291e55cdb8ff8e67f7b984eb27654c695f6a111058d1cb60da6ae479fc13a. 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 13 File information Comments

SHA256 hash:	d13291e55cdb8ff8e67f7b984eb27654c695f6a111058d1cb60da6ae479fc13a
SHA3-384 hash:	ecd10122fc592db00d483e47c4d7dc6de6477a250a9d8a17bfde4583c4d97d075523b07aa00eb68dad4076499b4953df
SHA1 hash:	8ce0472fb2876c5df4457e610fdcf3674a5a9219
MD5 hash:	a933fe957a54ae9701ed638b2cfbeea9
humanhash:	island-one-maine-mockingbird
File name:	d13291e55cdb8ff8e67f7b984eb27654c695f6a111058d1cb60da6ae479fc13a
Download:	download sample
Signature	Formbook Create hunting rule
File size:	1'243'136 bytes
First seen:	2025-09-05 13:26:03 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	1895460fffad9475fda0c84755ecfee1 (341 x Formbook, 89 x AgentTesla, 56 x a310Logger)
ssdeep	24576:G5EmXFtKaL4/oFe5T9yyXYfP1ijXdaAazFeUmtwvQpl6JEp:GPVt/LZeJbInQRaAazFhI
Threatray	764 similar samples on MalwareBazaar
TLSH	T10B45BF0273C1C062FFAB92334B5AF6115ABD79260127AA2F13981D79FD701B1563E7A3
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:

d13291e55cdb8ff8e67f7b984eb27654c695f6a111058d1cb60da6ae479fc13a

Verdict:

No threats detected

Analysis date:

2025-09-05 22:46:33 UTC

Tags:

n/a

Link:

https://app.any.run/tasks/75402f40-1f00-4676-96bb-7a688454a47c

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/25726/

Verdict:

Malicious

Score:

99.1%

Link:

https://cyber-fortress.com/docs/result/index.php?id=68bae54eeb163e0ec1848938

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

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

adaptive-context autoit compiled-script fingerprint keylogger microsoft_visual_cc obfuscated packed packed packer_detected threat

Link:

https://www.filescan.io/uploads/68baf85537c25fcf12d4d84d/reports/da973db6-42d1-4aaa-bb8c-1fdcefc2b5e5/overview

Verdict:

Malicious

Labled as:

Win/malicious_confidence_90%

Link:

https://www.hybrid-analysis.com/sample/d13291e55cdb8ff8e67f7b984eb27654c695f6a111058d1cb60da6ae479fc13a

Verdict:

Malicious

File Type:

exe x32

First seen:

2025-08-26T09:41:00Z UTC

Last seen:

2025-08-26T09:41:00Z UTC

Hits:

~1000

Link:

https://opentip.kaspersky.com/d13291e55cdb8ff8e67f7b984eb27654c695f6a111058d1cb60da6ae479fc13a/results?tab=lookup

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/75e0a908-c5f7-468e-8051-dcf25ab8eeb4

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/d13291e55cdb8ff8e67f7b984eb27654c695f6a111058d1cb60da6ae479fc13a

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/a933fe957a54ae9701ed638b2cfbeea9

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/d13291e55cdb8ff8e67f7b984eb27654c695f6a111058d1cb60da6ae479fc13a/

Threat name:

Win32.Trojan.AutoitInject

Status:

Malicious

First seen:

2025-08-26 12:23:51 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

19 of 23 (82.61%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=2ezjdzk43oh7rzt7pome5mtwktdjl5vbcecy2hfwbwtk4r47ye5a._file

Verdict:

malicious

Label(s):

formbook

Formbook

0ec78936cfd600f8f7b64b4d58bf9ea1fb2586c96e0e2fefa938c758712b24d1

Formbook

50c0d11e8f7153f1129643673ded00e74fe4cb9e929b0a97d9c5bcf983805e41

Formbook

5adae07eaecfdb9e5bee71b119547079a8d685ae044d1cd3523bf074a2ccb473

Formbook

b9efbbd81183b0e4b818455b4409b3b7c5852069130614ff175abc9d9277edc9

Formbook

c926da758d8eff68c5c7f830129ced658297f81878bc053ab5c09d1b56f20c62

Formbook

d6db45310338efda0778f101ea3378831370913796f5971fd861d9f2c3f49ef0

Formbook

e15bf322a7c587a47c91dad4734d8d56a941664ded7ddbd171416abeb1e34b47

Formbook

+ 754 additional samples on MalwareBazaar

Result

Malware family:

formbook

Score:

10/10

Tags:

family:formbook discovery rat spyware stealer trojan

Link:

https://tria.ge/reports/250905-r4gpws1yb1/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

System Location Discovery: System Language Discovery

Suspicious use of SetThreadContext

Formbook payload

Formbook

Formbook family

Verdict:

Suspicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/6d4a86bf-dc88-40a3-8ccd-1726d175ee40

Unpacked files

SH256 hash:

21f29bc3b043132b3d7919319cb73b1da85e946a485130c7737f343608aa4232

MD5 hash:

4dbd1af1f2e149f82154a56b64a932c4

SHA1 hash:

58a9b41387d53e1dcbe67dba8adc2d0aad4a4e4c

Link:

https://www.unpac.me/results/bf647c8c-461c-488a-af96-52194e399156/

SH256 hash:

8faebdddf13a4eb8c8cd90a06f3cd538b3a8f6cfd41bd2e6c9ce8bc0dc20b878

MD5 hash:

c36a1bd72b9282a4c389a6f42ad90264

SHA1 hash:

fecdb218a6e76437b45911b45a3f026d39afb6a9

Detections:

win_formbook_g0

Link:

https://www.unpac.me/results/bf647c8c-461c-488a-af96-52194e399156/

Parent samples :

901905df3e72235908f6f0c86ebfd965b35ec1ebbe5cab56607ed8b874c0246e
c926da758d8eff68c5c7f830129ced658297f81878bc053ab5c09d1b56f20c62
d6db45310338efda0778f101ea3378831370913796f5971fd861d9f2c3f49ef0
0ec78936cfd600f8f7b64b4d58bf9ea1fb2586c96e0e2fefa938c758712b24d1
d02280a77bf42090eba1fb12375840ed831b0c470c4c6c5a644b2e23ec915ec6
e6e54139bcd7f169ed5f2d33e9156f904fcbada234f843cc64201673ca38a517
a368e153204998c0371fe959c33c8bb4672571a6c2787b140b6862473072dc76
d13291e55cdb8ff8e67f7b984eb27654c695f6a111058d1cb60da6ae479fc13a
0238b20b93f2e52440023b55ae7ba15061d12e4c29a573b42106983a48f54cfc

SH256 hash:

d13291e55cdb8ff8e67f7b984eb27654c695f6a111058d1cb60da6ae479fc13a

MD5 hash:

a933fe957a54ae9701ed638b2cfbeea9

SHA1 hash:

8ce0472fb2876c5df4457e610fdcf3674a5a9219

Link:

https://www.unpac.me/results/bf647c8c-461c-488a-af96-52194e399156/

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

Threat name:

Formbook

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/d13291e55cdb8ff8e67f7b984eb27654c695f6a111058d1cb60da6ae479fc13a

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_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__API 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:	golang_bin_JCorn_CSC846 Create hunting rule
Author:	Justin Cornwell
Description:	CSC-846 Golang detection ruleset

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:	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:	Sus_Obf_Enc_Spoof_Hide_PE Create hunting rule
Author:	XiAnzheng
Description:	Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

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/25726/

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