MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3103bad7a756dbde298af3162f848f2a3101354148fec4f4b341a7ce17adf4c5. 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: 20

Intelligence 20 IOCs YARA 19 File information Comments

SHA256 hash:	3103bad7a756dbde298af3162f848f2a3101354148fec4f4b341a7ce17adf4c5
SHA3-384 hash:	1b602f2305f0a4add5b3baf72ba01c3f2662991b3e45cba0d3bbfdd7bad21c6ed4a6862b2e8b7b38acb345a20bd8b0a7
SHA1 hash:	a78f174e300334e134af4b05c258bf1175d5ce3c
MD5 hash:	bfa9877f866af05226b703796fc319bf
humanhash:	papa-fix-seven-bacon
File name:	3103bad7a756dbde298af3162f848f2a3101354148fec4f4b341a7ce17adf4c5
Download:	download sample
Signature	Formbook Create hunting rule
File size:	1'241'088 bytes
First seen:	2025-09-05 13:17:29 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	1895460fffad9475fda0c84755ecfee1 (306 x Formbook, 52 x AgentTesla, 36 x SnakeKeylogger)
ssdeep	24576:t5EmXFtKaL4/oFe5T9yyXYfP1ijXdaBDn0PAu:tPVt/LZeJbInQRaBY
Threatray	894 similar samples on MalwareBazaar
TLSH	T1E945BF027391C062FFAB92334F5AF61156BC79260123A62F13981D79FE705B1563E7A3
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:

3103bad7a756dbde298af3162f848f2a3101354148fec4f4b341a7ce17adf4c5.exe

Verdict:

No threats detected

Analysis date:

2025-09-05 14:28:08 UTC

Tags:

n/a

Link:

https://app.any.run/tasks/41803104-8dd5-4c7c-b7f1-283cd6bd8b64

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/25658/

Verdict:

Malicious

Score:

96.5%

Link:

https://cyber-fortress.com/docs/result/index.php?id=68bae343eb163e0ec18485fd

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/68baf3b120d0ee406d96c7c2/reports/56b7f829-3c28-47f0-8c92-5cab62e533fa/overview

Verdict:

Malicious

Labled as:

Trojan.Generic

Link:

https://www.hybrid-analysis.com/sample/3103bad7a756dbde298af3162f848f2a3101354148fec4f4b341a7ce17adf4c5

Result

Verdict:

MALICIOUS

Details

Windows PE Executable

Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.

Verdict:

Malicious

File Type:

exe x32

First seen:

2025-08-25T10:32:00Z UTC

Last seen:

2025-08-25T10:32:00Z UTC

Hits:

~100

Detections:

Trojan.Win32.Zenpak.sb PDM:Trojan.Win32.Generic Trojan-Spy.Win32.Noon.sb Trojan.Win32.Strab.sb Trojan.Win32.Inject.sb HEUR:Trojan.Script.AUO.gen

Link:

https://opentip.kaspersky.com/3103bad7a756dbde298af3162f848f2a3101354148fec4f4b341a7ce17adf4c5/results?tab=lookup

Malware family:

Formbook

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/a285d4f5-a6bb-4ba3-8316-7ab6b97e40d8

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/3103bad7a756dbde298af3162f848f2a3101354148fec4f4b341a7ce17adf4c5

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/bfa9877f866af05226b703796fc319bf

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/3103bad7a756dbde298af3162f848f2a3101354148fec4f4b341a7ce17adf4c5/

Verdict:

Malicious

Threat:

Family.FORMBOOK

Link:

https://tip.neiki.dev/file/3103bad7a756dbde298af3162f848f2a3101354148fec4f4b341a7ce17adf4c5

Threat name:

Win32.Trojan.AutoitInject

Status:

Malicious

First seen:

2025-08-25 13:33:06 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

28 of 38 (73.68%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=geb3vv5hk3n54kmk6mlc7bepfiyqcnkbjd7mj5ftigt44f5n6tcq._file

Verdict:

malicious

Label(s):

formbook

Result

Malware family:

formbook

Score:

10/10

Tags:

family:formbook discovery rat spyware stealer trojan

Link:

https://tria.ge/reports/250905-rrfxtsbp8y/

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/f2b44562-a45d-4e05-8180-d6538b413708

Unpacked files

SH256 hash:

3103bad7a756dbde298af3162f848f2a3101354148fec4f4b341a7ce17adf4c5

MD5 hash:

bfa9877f866af05226b703796fc319bf

SHA1 hash:

a78f174e300334e134af4b05c258bf1175d5ce3c

Link:

https://www.unpac.me/results/03002cf9-278d-4cdb-b30f-53f970df0feb/

SH256 hash:

f823e6e8ca9bd52588534ec40fa9ec2e7e9621e61783aa58a9ccc9dab49b8d85

MD5 hash:

1e52bc0a874392d7af97f59df70c8c3b

SHA1 hash:

202f6ae7d619fb0fd74cf2f6e0fcd54d89f1c0d3

Link:

https://www.unpac.me/results/03002cf9-278d-4cdb-b30f-53f970df0feb/

SH256 hash:

17840ca8ffcbe3156adc0c138364c41520b7098da7c243d435f4098d1d312fb7

MD5 hash:

8b7fdc208816d232060bd31168007331

SHA1 hash:

23925755639a7ae67957b99b93814f10b2cfcfca

Detections:

win_formbook_g0

Link:

https://www.unpac.me/results/03002cf9-278d-4cdb-b30f-53f970df0feb/

Parent samples :
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Malware family:

FormBook

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/3103bad7a756/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/3103bad7a756dbde298af3162f848f2a3101354148fec4f4b341a7ce17adf4c5

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:	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:	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:	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/25658/

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