MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 351184a95c114d89dcc8e2a2d1468b02b79a8d97a7ef12c98c74a577bab99664. 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: 19

Intelligence 19 IOCs YARA 20 File information Comments

SHA256 hash:	351184a95c114d89dcc8e2a2d1468b02b79a8d97a7ef12c98c74a577bab99664
SHA3-384 hash:	f734e0d4350f30a90435dfe025049a2664df344531e341eb31c38132061ec830d92cb7301a638ad971f6d0131553a45a
SHA1 hash:	95e3a08b6252d05a8fe693a78ff1ab59f4059c91
MD5 hash:	825c7bb9565290a94026b5a8fadb5109
humanhash:	magnesium-florida-one-tennessee
File name:	rInquiriesforQuotation.exe
Download:	download sample
Signature	Formbook Create hunting rule
File size:	777'216 bytes
First seen:	2025-10-17 09:31:13 UTC
Last seen:	2025-11-06 10:48:30 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'599 x Formbook, 12'241 x SnakeKeylogger)
ssdeep	12288:VY0OTMfwR+42BHI+OCd5KF7mmuuYQ+82Sxb7P5hZetzIBX:V5fSilOCd5KVmZSdj5b/
Threatray	2'155 similar samples on MalwareBazaar
TLSH	T11AF41294262AEB02DA61ABF85571F1740BB83E9AF852D31A4FC47DEFB876F400C14653
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	FXOLabs
Tags:	exe FormBook Spam-ITA

Intelligence

File Origin

# of uploads :

# of downloads :

137

Origin country :

Vendor Threat Intelligence

Malware family:

formbook

ID:

File name:

_ca6fe628c2c13ff76260d98bd969ec9eebbe6f1c70b47863fe17866a9ec7c212.rar

Verdict:

Malicious activity

Analysis date:

2025-10-17 09:36:20 UTC

Tags:

arch-exec auto-sch-xml formbook xloader stealer

Link:

https://app.any.run/tasks/b0d4e03f-5f35-49c9-9eeb-c04e3735f9f9

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/33190/

Detection(s):

no reply from clamd

Verdict:

Malicious

Score:

94.9%

Link:

https://cyber-fortress.com/docs/result/index.php?id=68f20d0172d478f905989568

Tags:

stration spawn shell

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Creating a file in the %AppData% directory

Enabling the 'hidden' option for recently created files

Adding an access-denied ACE

Creating a file in the %temp% directory

Creating a process with a hidden window

Launching a process

Unauthorized injection to a recently created process

Restart of the analyzed sample

Creating a file

Sending a custom TCP request

Сreating synchronization primitives

Adding an exclusion to Microsoft Defender

Enabling autorun by creating a file

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

packed

Link:

https://www.filescan.io/uploads/68f20cfedf5cb32bf1f0e136/reports/b8d38089-7b07-4bd6-98d6-f00cfb989caa/overview

Verdict:

Malicious

Labled as:

Win/malicious_confidence_100%

Link:

https://www.hybrid-analysis.com/sample/351184a95c114d89dcc8e2a2d1468b02b79a8d97a7ef12c98c74a577bab99664

Verdict:

Malicious

File Type:

exe x32

First seen:

2025-10-17T05:37:00Z UTC

Last seen:

2025-10-19T07:26:00Z UTC

Hits:

~1000

Detections:

VHO:Backdoor.Win32.Agent.gen HEUR:Trojan-Spy.MSIL.Noon.gen Backdoor.Agent.HTTP.C&C Trojan-Spy.Win32.Noon.sb Trojan-Spy.Noon.HTTP.ServerRequest PDM:Trojan.Win32.Generic Trojan.MSIL.Taskun.sb Trojan-Dropper.Win32.Agent.sb Trojan.MSIL.Inject.sb Trojan.MSIL.Crypt.sb HEUR:Trojan.MSIL.Taskun.sb

Link:

https://opentip.kaspersky.com/351184a95c114d89dcc8e2a2d1468b02b79a8d97a7ef12c98c74a577bab99664/results?tab=lookup

Malware family:

Formbook

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/2ebc5432-f797-45f5-b803-5d74a8434f6d

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/351184a95c114d89dcc8e2a2d1468b02b79a8d97a7ef12c98c74a577bab99664

Verdict:

inconclusive

YARA:

10 match(es)

Tags:

.Net Executable Managed .NET PDB Path PE (Portable Executable) PE File Layout SOS: 0.45 Win 32 Exe x86

Link:

https://app.malva.re/file/825c7bb9565290a94026b5a8fadb5109

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/351184a95c114d89dcc8e2a2d1468b02b79a8d97a7ef12c98c74a577bab99664/

Threat name:

ByteCode-MSIL.Backdoor.FormBook

Status:

Malicious

First seen:

2025-10-17 08:16:42 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

19 of 24 (79.17%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=guiyjkk4cfgytxgi4krncrulak3zvdmxu7xrfsmmossxpovzszsa._file

Verdict:

malicious

Label(s):

unc_loader_037

formbook

Result

Malware family:

formbook

Score:

10/10

Tags:

family:formbook discovery execution persistence rat spyware stealer trojan

Link:

https://tria.ge/reports/251017-lhdhfszpy7/

Behaviour

Scheduled Task/Job: Scheduled Task

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Suspicious use of SetThreadContext

Checks computer location settings

Executes dropped EXE

Command and Scripting Interpreter: PowerShell

Formbook payload

Formbook

Formbook family

Verdict:

Malicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/316b5494-d75d-4061-8dce-c73d15256f1d

Unpacked files

SH256 hash:

351184a95c114d89dcc8e2a2d1468b02b79a8d97a7ef12c98c74a577bab99664

MD5 hash:

825c7bb9565290a94026b5a8fadb5109

SHA1 hash:

95e3a08b6252d05a8fe693a78ff1ab59f4059c91

Link:

https://www.unpac.me/results/7150d103-6c94-49fc-9cb0-d45f3023e9c5/

SH256 hash:

023a0a6a3e35deab25ea5c0108787ed43ea8fae649d4e057b4e045ff891b7d60

MD5 hash:

150d5b32b8e8146b22fbe199a534d542

SHA1 hash:

11c5f88b3a8b50b87f47a1ba3448e2835d64850d

Detections:

SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24

SUSP_OBF_NET_Reactor_Indicators_Jan24

Link:

https://www.unpac.me/results/7150d103-6c94-49fc-9cb0-d45f3023e9c5/

SH256 hash:

b6781edd819929c2fe8b41985314c4eaed3c35ce05a61cdf911da3f09de53074

MD5 hash:

69fe9dc75c1792830f0a6d2525d05b22

SHA1 hash:

ae712836721804406194a813b91c7dd9f122d28c

Link:

https://www.unpac.me/results/7150d103-6c94-49fc-9cb0-d45f3023e9c5/

SH256 hash:

fac40018af3da86c0f4f0c1f627ed093170c85db1d7c290c9ee67e1ce99a9f72

MD5 hash:

abccbedf02820a6dccf794758c089231

SHA1 hash:

bd44783aad4978e63aa4760a17a70ecfa69037fe

Link:

https://www.unpac.me/results/7150d103-6c94-49fc-9cb0-d45f3023e9c5/

SH256 hash:

a7282ab473058c469958625c02f10922f14d68434f8caad25fad9b39465e9ea5

MD5 hash:

f649028a9716be27b64a0ebd31c9f90d

SHA1 hash:

68a82d41a1542dee032f4fd5b7b4e59c31cdba39

Link:

https://www.unpac.me/results/7150d103-6c94-49fc-9cb0-d45f3023e9c5/

Malware family:

FormBook

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/351184a95c11/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/351184a95c114d89dcc8e2a2d1468b02b79a8d97a7ef12c98c74a577bab99664

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:	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

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.

Malspam

Formbook

exe 351184a95c114d89dcc8e2a2d1468b02b79a8d97a7ef12c98c74a577bab99664

(this sample)

Delivery method

Distributed via e-mail attachment

Cape

https://www.capesandbox.com/analysis/33190/

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