MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3f01ff986c36bb3738b261023b009ec18d700ff3b0cb6e768138b9c2d33af356. 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: 18

Intelligence 18 IOCs YARA 26 File information Comments

SHA256 hash:	3f01ff986c36bb3738b261023b009ec18d700ff3b0cb6e768138b9c2d33af356
SHA3-384 hash:	69641781944e844c86c76acafd4b38a5e552486050510085d6eb8d7163dc55d741b86ce576859a5e5a3bed06389e3ec2
SHA1 hash:	f25ed9fc0089b246205f48e65bbd705e1da51c65
MD5 hash:	ac4431755af25c74408cd7dd293ee344
humanhash:	mobile-mississippi-illinois-missouri
File name:	3f01ff986c36bb3738b261023b009ec18d700ff3b0cb6e768138b9c2d33af356
Download:	download sample
Signature	Formbook Create hunting rule
File size:	822'784 bytes
First seen:	2025-11-06 11:06:49 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	21371b611d91188d602926b15db6bd48 (61 x Formbook, 23 x AgentTesla, 20 x RemcosRAT)
ssdeep	24576:if+iN57Gtene3lACXAf00vifKp/+7AMg:sLXKtene3lxi0iifKQ
Threatray	2'102 similar samples on MalwareBazaar
TLSH	T18B052372ED402B04C5978D30C81EB82D553E6FA4281E916BEF6DBBF25CF83D09B69464
TrID	39.1% (.EXE) UPX compressed Win32 Executable (27066/9/6) 38.3% (.EXE) Win32 EXE Yoda's Crypter (26569/9/4) 7.2% (.EXE) Win16 NE executable (generic) (5038/12/1) 6.5% (.EXE) Win32 Executable (generic) (4504/4/1) 2.9% (.EXE) OS/2 Executable (generic) (2029/13)
Magika	pebin
Reporter	adrian__luca
Tags:	exe FormBook UPX

UPX packed

This file is packed with UPX. We have therefore unpacked the file. Below is furhter information about the unpacked (de-compressed) file.

File size (compressed) :	822'784 bytes
File size (de-compressed) :	1'329'152 bytes
Format:	win32/pe
Unpacked file:	ccb3e83b48a9e67d951bd5c4c732bec3d924d6a01b5af72eeeae976d575b0bc2

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

_3f01ff986c36bb3738b261023b009ec18d700ff3b0cb6e768138b9c2d33af356.exe

Verdict:

No threats detected

Analysis date:

2025-11-06 11:18:14 UTC

Tags:

n/a

Link:

https://app.any.run/tasks/2bd02790-0d14-4b40-940c-e6e0ed6e28ec

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/36029/

Verdict:

Malicious

Score:

96.5%

Link:

https://cyber-fortress.com/docs/result/index.php?id=690c81a2ea0f3e915c2389e9

Tags:

virus spawn

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:

Cerbu.Generic

Link:

https://www.hybrid-analysis.com/sample/3f01ff986c36bb3738b261023b009ec18d700ff3b0cb6e768138b9c2d33af356

Verdict:

Malicious

File Type:

exe x32

First seen:

2025-10-21T21:02:00Z UTC

Last seen:

2025-11-07T11:04:00Z UTC

Hits:

~1000

Detections:

Trojan.Win32.Strab.sb Trojan-PSW.Win32.Stealer.sb Trojan-Dropper.Win32.Dorifel.sbd Trojan-Spy.Win32.Noon.sb Trojan.Win32.Inject.sb VHO:Trojan.Win64.Injects.haf Trojan-Spy.Noon.HTTP.ServerRequest Trojan.Win32.Zenpak.sb Trojan.Win32.Agent.sb PDM:Trojan.Win32.Generic Trojan.Win64.Injects.haf Trojan.Win64.Injects.hac

Link:

https://opentip.kaspersky.com/3f01ff986c36bb3738b261023b009ec18d700ff3b0cb6e768138b9c2d33af356/results?tab=lookup

Malware family:

Formbook

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/ca59722c-1523-4727-b204-fe95e80a419b

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/3f01ff986c36bb3738b261023b009ec18d700ff3b0cb6e768138b9c2d33af356

Verdict:

Malware

YARA:

5 match(es)

Tags:

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

Link:

https://app.malva.re/file/ac4431755af25c74408cd7dd293ee344

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/3f01ff986c36bb3738b261023b009ec18d700ff3b0cb6e768138b9c2d33af356/

Verdict:

Malicious

Threat:

Family.FORMBOOK

Link:

https://tip.neiki.dev/file/3f01ff986c36bb3738b261023b009ec18d700ff3b0cb6e768138b9c2d33af356

Threat name:

Win32.Trojan.AutoitInject

Status:

Malicious

First seen:

2025-10-22 00:23:33 UTC

File Type:

PE (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=h4a77gdmg25toofsmebdwae6yggxad7twdfw45ubhc44fuz26nla._file

Verdict:

malicious

Label(s):

formbook

Formbook

20f2f32534dbab75a5c3ee41786c118bdd6b638e1fd9b4e863f21e51248d45e4

Formbook

228f14fb73d1cfbcb7c7916505a0504bcc66ee0adaea057e030a3618a6d07422

Formbook

31067e4964e4e4c454217fd32a1e68221ae3f470be4faf28a85e48eaccf39162

Formbook

51baf7fe0bb25ca0810b31eb224f2c779ccdb6086151139dfcf95ebc70bad029

Formbook

ab560f8779a244097805aae7b6c95eecd6de7909c9ca0bffa7f6a7fda28eb6b2

Formbook

e087ef304badb09dbb8b38a88337c5e2d4a0d3fc174d75817e622fdd8f5a6722

Formbook

+ 2'092 additional samples on MalwareBazaar

Result

Malware family:

formbook

Score:

10/10

Tags:

family:formbook discovery rat spyware stealer trojan upx

Link:

https://tria.ge/reports/251106-m79smaal5v/

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

AutoIT Executable

Suspicious use of SetThreadContext

UPX packed file

Formbook payload

Formbook

Formbook family

Verdict:

Suspicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/2c4273d7-b374-428f-8590-68fa7a38946e

Unpacked files

SH256 hash:

3f01ff986c36bb3738b261023b009ec18d700ff3b0cb6e768138b9c2d33af356

MD5 hash:

ac4431755af25c74408cd7dd293ee344

SHA1 hash:

f25ed9fc0089b246205f48e65bbd705e1da51c65

Link:

https://www.unpac.me/results/68e72ae1-3e43-4b59-9d5f-94acc96d8928/

SH256 hash:

ccb3e83b48a9e67d951bd5c4c732bec3d924d6a01b5af72eeeae976d575b0bc2

MD5 hash:

ea3cd0d5f69fe812a27701244ffd79bd

SHA1 hash:

14301703bd81c267f9e5b7085a9ce20bb802680b

Detections:

AutoIT_Compiled

Link:

https://www.unpac.me/results/68e72ae1-3e43-4b59-9d5f-94acc96d8928/

Parent samples :

3f01ff986c36bb3738b261023b009ec18d700ff3b0cb6e768138b9c2d33af356
ccb3e83b48a9e67d951bd5c4c732bec3d924d6a01b5af72eeeae976d575b0bc2

SH256 hash:

57dacc029e706ae184b9f8c3f8efe78b04919967b622d84261d2bf6cc7b1ff62

MD5 hash:

e0d6c5d15b34e08ed4602a1f2a22dd00

SHA1 hash:

129df54a2a54863c5fa96531d12be6702ed302cc

Link:

https://www.unpac.me/results/68e72ae1-3e43-4b59-9d5f-94acc96d8928/

SH256 hash:

7fb5e123f51210c3da7f985e84f1d6d19a686f94c5f23fe8e0fdd0e5a7968e05

MD5 hash:

5fa2df5b2ef66b37f9858b52975d88dd

SHA1 hash:

dbb76612f9e9ce2653368ec3c7fa0891fd775580

Detections:

win_formbook_g0

Link:

https://www.unpac.me/results/68e72ae1-3e43-4b59-9d5f-94acc96d8928/

Parent samples :
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Malware family:

FormBook

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/3f01ff986c36/report/overview.html

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/3f01ff986c36bb3738b261023b009ec18d700ff3b0cb6e768138b9c2d33af356

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_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:	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_Win_ETW_Bypass_2025_CYFARE Create hunting rule
Author:	CYFARE
Description:	Windows ETW Bypass Detection Rule - 2025
Reference:	https://cyfare.net/

Rule name:	UPXV200V290MarkusOberhumerLaszloMolnarJohnReiser Create hunting rule
Author:	malware-lu

Rule name:	upx_largefile Create hunting rule
Author:	k3nr9

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Formbook

exe 3f01ff986c36bb3738b261023b009ec18d700ff3b0cb6e768138b9c2d33af356

(this sample)

Formbook

exe ccb3e83b48a9e67d951bd5c4c732bec3d924d6a01b5af72eeeae976d575b0bc2

Dropping

SHA256 ccb3e83b48a9e67d951bd5c4c732bec3d924d6a01b5af72eeeae976d575b0bc2

Dropping

MD5 ea3cd0d5f69fe812a27701244ffd79bd

Cape

https://www.capesandbox.com/analysis/36029/

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