MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ffec8bac69d96ff2159ec9ad6e09525f133e15256079c7f54332e45ca1aed004. 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 6 File information Comments

SHA256 hash:	ffec8bac69d96ff2159ec9ad6e09525f133e15256079c7f54332e45ca1aed004
SHA3-384 hash:	db2ea809b69c93675ab60d0a193873483f43c5f962a7a113ebaf413da7069d075e76f9f4773b22e65ddf19a2f6b7e0d6
SHA1 hash:	dbbabf8f5c4277ebce4679261bc24334b9819157
MD5 hash:	32d65a033ed23f8e77fd573ca41253cc
humanhash:	bluebird-maryland-early-batman
File name:	SecuriteInfo.com.Trojan.Siggen31.48814.26223.6921
Download:	download sample
Signature	Formbook Create hunting rule
File size:	716'808 bytes
First seen:	2025-08-11 17:17:59 UTC
Last seen:	2025-08-11 18:22:29 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'747 x AgentTesla, 19'633 x Formbook, 12'242 x SnakeKeylogger)
ssdeep	12288:EhyxXt7C39HbkgKNL6LcYfLQHS00Q/DvR2tMPYOfxJ1dfikR:4ye31bS56LcgQy03bvR2tMwOxJ1RR
Threatray	64 similar samples on MalwareBazaar
TLSH	T16AE41246EA9AE900C5BA4B706952C1372BF17FCA7011D207AFF17DEF38387616A94381
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	SecuriteInfoCom
Tags:	exe FormBook

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

Malware family:

formbook

ID:

File name:

SecuriteInfo.com.Trojan.Siggen31.48814.26223.6921

Verdict:

Malicious activity

Analysis date:

2025-08-11 17:18:44 UTC

Tags:

netreactor auto-sch-xml formbook xloader stealer

Link:

https://app.any.run/tasks/40c5cab3-8ed5-4e78-b16a-24d543ccf0a8

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/20188/

Verdict:

Malicious

Score:

94.9%

Link:

https://cyber-fortress.com/docs/result/index.php?id=689a25edc633abe3908df137

Tags:

injection spawn shell

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Creating a process with a hidden 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

Launching a process

Creating a file

Adding an exclusion to Microsoft Defender

Enabling autorun by creating a file

Unauthorized injection to a system process

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

invalid-signature obfuscated packed packed packer_detected signed

Link:

https://www.filescan.io/uploads/689a25ec2fbe0788fb1daa32/reports/337cc7fa-3504-409a-bb50-edead4949f69/overview

Verdict:

Malicious

Labled as:

Win/malicious_confidence_100%

Link:

https://www.hybrid-analysis.com/sample/ffec8bac69d96ff2159ec9ad6e09525f133e15256079c7f54332e45ca1aed004

Verdict:

Unknown

Link:

https://analyze.intezer.com/analyses/e78a46d6-aef7-441e-a6d3-e06dc5509b6e

Score:

97%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/ffec8bac69d96ff2159ec9ad6e09525f133e15256079c7f54332e45ca1aed004

Verdict:

inconclusive

YARA:

5 match(es)

Tags:

.Net Executable PDB Path PE (Portable Executable) SOS: 0.23 Win 32 Exe x86

Link:

https://app.malva.re/file/32d65a033ed23f8e77fd573ca41253cc

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/ffec8bac69d96ff2159ec9ad6e09525f133e15256079c7f54332e45ca1aed004/

Verdict:

Malicious

Threat:

Family.FORMBOOK

Link:

https://tip.neiki.dev/file/ffec8bac69d96ff2159ec9ad6e09525f133e15256079c7f54332e45ca1aed004

Threat name:

Win32.Packed.Generic

Status:

Suspicious

First seen:

2025-08-11 10:20:33 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

25 of 37 (67.57%)

Threat level:

1/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=77wixldj3fx7efm6zgww4cksl4jt4fjfmb44p5kdglsfzino2aca._file

Verdict:

malicious

Label(s):

unc_loader_037

formbook

Formbook

3f36470c8de5dce133dd63e3072f9abf88f1676a57455d395cf8b5c09f5f627e

Formbook

5546bd925d3a06f12ca0509af5db9539517039a2e3ba1f6f942b36f3e0115c8e

Formbook

586f24f406e1fb59caebfb6768da3fada10859f0574ffd40c394e38ba2df49fa

Formbook

6e1b5766415cd5d8e7f92d995828f0bca174fc5141af7e59e73f92e057df0626

Formbook

error

Formbook

ffec8bac69d96ff2159ec9ad6e09525f133e15256079c7f54332e45ca1aed004

Formbook

+ 54 additional samples on MalwareBazaar

Result

Malware family:

n/a

Score:

8/10

Tags:

discovery execution persistence

Link:

https://tria.ge/reports/250811-vvhsda1sfz/

Behaviour

Scheduled Task/Job: Scheduled Task

Suspicious behavior: EnumeratesProcesses

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

Command and Scripting Interpreter: PowerShell

Verdict:

Malicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/f9172201-514d-45b8-ada9-c7c976ec735c

Unpacked files

SH256 hash:

ffec8bac69d96ff2159ec9ad6e09525f133e15256079c7f54332e45ca1aed004

MD5 hash:

32d65a033ed23f8e77fd573ca41253cc

SHA1 hash:

dbbabf8f5c4277ebce4679261bc24334b9819157

Link:

https://www.unpac.me/results/ff7333af-5057-4ebe-853c-e11ca5281a7c/

SH256 hash:

847cbd38279d4f9044ffd9f09f6d0c011b99a423d662eacf41a4c201fe3c1e18

MD5 hash:

dd7efc9d9744180dd37e13cd02fccf83

SHA1 hash:

1a1bcf23123d583ad5106d3cf753aa3aab93e382

Detections:

SUSP_OBF_NET_Reactor_Indicators_Jan24

Link:

https://www.unpac.me/results/ff7333af-5057-4ebe-853c-e11ca5281a7c/

Parent samples :

0e5ca2f31f00e3aa1eacf918dc957e020d92f8d0198dad5766afb3f101a117d4
37fc883dc7dca2f74947e57ef839c8a2349330ea9e32cb3445f76ebc3c901741
5d56ab1e8c868c5c4bb5baac467c80275f3348a5ae02b009aa39e62aa0b99c49
5546bd925d3a06f12ca0509af5db9539517039a2e3ba1f6f942b36f3e0115c8e
ffec8bac69d96ff2159ec9ad6e09525f133e15256079c7f54332e45ca1aed004
75dcf23c113abd3be7403b977093d83f208ae38773e89bdbc8b2090ec45c24dc
2916bffe78f4e2f157285a37c266d23fd9158c5517bbf138c565d8429d2b7572

SH256 hash:

ecdeaabc4ae9203bd24a0619b7a8560067327833d39c69afaadaa65b23b6b521

MD5 hash:

6d1587f4f666d0d74f1fed29b0beb137

SHA1 hash:

aa46027d6d589787e053dcc21755275b1dad1a7b

Detections:

SUSP_OBF_NET_ConfuserEx_Name_Pattern_Jan24

SUSP_OBF_NET_Reactor_Indicators_Jan24

Link:

https://www.unpac.me/results/ff7333af-5057-4ebe-853c-e11ca5281a7c/

SH256 hash:

6602459e917db58b17b53efcaa362098586828fb2cc861bf4158a64857483209

MD5 hash:

9d830fab59624d6820d261b39c5316b8

SHA1 hash:

e14d1e0eb5c9223920fef1028ab7f7c67f0782c5

Link:

https://www.unpac.me/results/ff7333af-5057-4ebe-853c-e11ca5281a7c/

Malware family:

FormBook

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/ffec8bac69d9/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/ffec8bac69d96ff2159ec9ad6e09525f133e15256079c7f54332e45ca1aed004

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:	INDICATOR_KB_CERT_7c1118cbbadc95da3752c46e47a27438 Create hunting rule
Author:	ditekSHen
Description:	Detects executables signed with stolen, revoked or invalid certificates

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

Rule name:	PE_Digital_Certificate Create hunting rule
Author:	albertzsigovits

Rule name:	pe_imphash Create hunting rule

Rule name:	Skystars_Malware_Imphash Create hunting rule
Author:	Skystars LightDefender
Description:	imphash

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/20188/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings

ID	Title	Severity
CHECK_AUTHENTICODE	Missing Authenticode	high
CHECK_DLL_CHARACTERISTICS	Missing dll Security Characteristics (GUARD_CF)	high

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