MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cf9f153ef4164c6e3eae8343a4cd3eee044010d821e98e0e8c2de77edacae925. 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: 13

Intelligence 13 IOCs YARA 33 File information Comments

SHA256 hash:	cf9f153ef4164c6e3eae8343a4cd3eee044010d821e98e0e8c2de77edacae925
SHA3-384 hash:	59ebe6e4d251e402fa27d9da2dbe96660c17bcea50be079e0e79115513ebacfb84576f3fadec0a419f7bd8363d2a3050
SHA1 hash:	a88c0f197a2c87c095cacc70c03489c4afb3c260
MD5 hash:	30574c9649cc16c382f8cd5b22de5397
humanhash:	robin-utah-shade-two
File name:	cf9f153ef4164c6e3eae8343a4cd3eee044010d821e98e0e8c2de77edacae925
Download:	download sample
Signature	Formbook Create hunting rule
File size:	1'113'600 bytes
First seen:	2026-10-19 07:58:50 UTC
Last seen:	Never
File type:	exe
MIME type:	application/vnd.microsoft.portable-executable
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (49'298 x AgentTesla, 20'717 x Formbook, 12'402 x SnakeKeylogger)
ssdeep	24576:zQpqS5CYzeDwkNsAg93oKDSFa7btQ4DPW4s+nrIQ3kzVa:zQ15tANA94KDh7JQmPW4s+rIn
TLSH	T19235EF582213D723C4617774CA73E2F416686EAAE900D23F5AD97EFB7F76E311904282
TrID	73.9% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 6.6% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 6.6% (.EXE) Win64 Executable (generic) (6522/11/2) 4.5% (.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 :

174

Origin country :

Vendor Threat Intelligence

Malware configuration found for:

RoboSki

Details

Link:

https://research.acce.ciphertechsolutions.com/results/4f601ad6-2c21-45bc-bcda-43c2c69961be/

Malware family:

n/a

ID:

File name:

exe

Verdict:

No threats detected

Analysis date:

2026-10-19 12:28:03 UTC

Tags:

n/a

Link:

https://app.any.run/tasks/0435a62d-564f-4045-a608-aee434ab42c7

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/92767/

Detection(s):

SecuriteInfo.com.Trojan.Siggen34.3927.11412.5442.UNOFFICIAL

Verdict:

Malicious

Score:

99.1%

Link:

https://cyber-fortress.com/docs/result/index.php?id=6ad5e5095a22ac805bd7deb4

Tags:

virus micro cupi

Result

Verdict:

Malware

Maliciousness:

Behaviour

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)

Gathering data

Verdict:

Malicious

Labled as:

Trojan.Generic

Link:

https://www.hybrid-analysis.com/sample/cf9f153ef4164c6e3eae8343a4cd3eee044010d821e98e0e8c2de77edacae925

Verdict:

Malicious

File Type:

exe x32

First seen:

2026-09-07T11:47:00Z UTC

Last seen:

2026-10-21T03:50:00Z UTC

Hits:

~1000

Link:

https://opentip.kaspersky.com/cf9f153ef4164c6e3eae8343a4cd3eee044010d821e98e0e8c2de77edacae925/results?tab=lookup

Verdict:

Unknown

Link:

https://analyze.intezer.com/analyses/bc03e382-81c1-4c6f-859b-856d9b79ef85

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/cf9f153ef4164c6e3eae8343a4cd3eee044010d821e98e0e8c2de77edacae925

Verdict:

inconclusive

YARA:

10 match(es)

Tags:

.Net Executable Managed .NET PE (Portable Executable) PE File Layout SOS: 0.47 Win 32 Exe x86

Link:

https://app.malva.re/file/30574c9649cc16c382f8cd5b22de5397

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/cf9f153ef4164c6e3eae8343a4cd3eee044010d821e98e0e8c2de77edacae925/

Threat name:

ByteCode-MSIL.Trojan.SnakeKeyLogger

Status:

Malicious

First seen:

2026-09-07 23:41:35 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

26 of 36 (72.22%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=z6prkpxuczgg4pvoqnb2jtj65yceaegyehuy4dumfxtx5wwk5esq._file

Verdict:

malicious

Label(s):

Formbook

XWorm

Link:

https://reports.threatray.com/f51735ee-aea8-4df7-a48f-f40cf15ff4a6

Result

Malware family:

formbook

Score:

10/10

Tags:

family:formbook discovery rat spyware stealer trojan

Link:

https://tria.ge/reports/261019-jvhxlagy8x/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Program crash

System Location Discovery: System Language Discovery

Suspicious use of SetThreadContext

Family: Formbook

Formbook payload

Unpacked files

SH256 hash:

cf9f153ef4164c6e3eae8343a4cd3eee044010d821e98e0e8c2de77edacae925

MD5 hash:

30574c9649cc16c382f8cd5b22de5397

SHA1 hash:

a88c0f197a2c87c095cacc70c03489c4afb3c260

Link:

https://www.unpac.me/results/a2e0d21e-f2eb-4026-b1ea-228c5b4300f6/

SH256 hash:

97e11126ba52377e5f485b08dabf800b58547e0e0e310e77ba6ac90d9da38871

MD5 hash:

b49b89d42a8bcc6ea71a104804a3d1d9

SHA1 hash:

6a9eb91a5a41185b8c7ab62d166d27d012ea6e31

Detections:

SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24

Link:

https://www.unpac.me/results/a2e0d21e-f2eb-4026-b1ea-228c5b4300f6/

SH256 hash:

c95b482105c4bb77c9e514b9027be6bf9013a341d8ea0199d86c6e5ea3d13d32

MD5 hash:

38ba700d456f8e8632c44080d7afebe8

SHA1 hash:

ba97e8f8235df1e9aeef784d7a211d66a1254667

Link:

https://www.unpac.me/results/a2e0d21e-f2eb-4026-b1ea-228c5b4300f6/

SH256 hash:

b7360abbd46139e85795280c7723ccb0fc9bd9519084bebc71d5b27ea56de48b

MD5 hash:

59378303ee411fe61c94185cc4a0a146

SHA1 hash:

4b6781f8bcfd415c1bf708b470440cb0757b4c28

Link:

https://www.unpac.me/results/a2e0d21e-f2eb-4026-b1ea-228c5b4300f6/

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

Threat name:

Suspicious File

Score:

0.45

Link:

https://yomi.yoroi.company/submissions/cf9f153ef4164c6e3eae8343a4cd3eee044010d821e98e0e8c2de77edacae925

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:	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:	NET Create hunting rule
Author:	malware-lu

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

Rule name:	WIN_Malware_Derialock_ForgeAuto_3127f957_Extrait Create hunting rule
Author:	Marjoriefort
Description:	Detects Derialock (pe, etat extrait)

Rule name:	WIN_Malware_SalatStealer_ForgeAuto_542e717b Create hunting rule
Author:	Marjoriefort
Description:	Detects SalatStealer (pe, etat binaire)

Rule name:	WIN_Malware_Sliver_ForgeAuto_2ddb463c Create hunting rule
Author:	Marjoriefort
Description:	Detects Sliver (pe, etat binaire)

Rule name:	WIN_Malware_Unknown_ForgeAuto_2ffc3572 Create hunting rule
Author:	Marjoriefort
Description:	Detects Unknown (pe, etat binaire)

Rule name:	WIN_Malware_Unknown_ForgeAuto_5001c94c Create hunting rule
Author:	Marjoriefort
Description:	Detects Unknown (pe, etat binaire)

Rule name:	WIN_Malware_Unknown_ForgeAuto_ce8c5b46 Create hunting rule
Author:	Marjoriefort
Description:	Detects Unknown (pe, etat binaire)

Rule name:	WIN_Malware_ValleyRAT_ForgeAuto_401c5e16 Create hunting rule
Author:	Marjoriefort
Description:	Detects ValleyRAT (pe, etat binaire)

Rule name:	WIN_Sample_Unique_69354b41 Create hunting rule
Author:	Marjoriefort
Description:	Specimen unique (soumission Bazaar) - strings distinctifs propres au sample
Reference:	69354b41e10daf03d3f3af881b32d5c0fec56b1cfe96629fd4c5263413a42854.exe

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/92767/

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