MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4cff3833a6be883d48baa6d083f723aafab1b015a75b592808a02d1d82e0e1fa. 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 19 File information Comments

SHA256 hash:	4cff3833a6be883d48baa6d083f723aafab1b015a75b592808a02d1d82e0e1fa
SHA3-384 hash:	083c84fa99368fa2820b3109c985934db1d575f68beb706256c90f56637378b3a229a889ab6be2eba3910f0ece44674e
SHA1 hash:	127d98f31eb2856b4b449ddb6516399276acee1b
MD5 hash:	dbfb8c461d468566f55984fa3c2367d1
humanhash:	beryllium-lima-india-triple
File name:	z19CurriculumVitae-MariaTeresaReyes.exe
Download:	download sample
Signature	Formbook Create hunting rule
File size:	1'230'848 bytes
First seen:	2025-09-24 15:30:11 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	1895460fffad9475fda0c84755ecfee1 (309 x Formbook, 52 x AgentTesla, 36 x SnakeKeylogger)
ssdeep	24576:T5EmXFtKaL4/oFe5T9yyXYfP1ijXdauR4UB3rBeqS6Se:TPVt/LZeJbInQRaueUB3rUqV
Threatray	1'433 similar samples on MalwareBazaar
TLSH	T13C45BE0273D1D062FFAB92734F5AF6115ABC79260123A62F13981D79BE701B1463E7A3
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	FXOLabs
Tags:	exe FormBook

Intelligence

File Origin

# of uploads :

# of downloads :

129

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

z19CurriculumVitae-MariaTeresaReyes.exe

Verdict:

No threats detected

Analysis date:

2025-09-24 15:35:33 UTC

Tags:

n/a

Link:

https://app.any.run/tasks/4d608850-04ee-4494-b971-7e3c52facf56

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/28834/

Detection(s):

SecuriteInfo.com.Win32.Trojan.Agent.35E5V6.UNOFFICIAL

Verdict:

Malicious

Score:

99.1%

Link:

https://cyber-fortress.com/docs/result/index.php?id=68d54532cc9425144151d677

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:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

adaptive-context anti-debug autoit compiled-script fingerprint keylogger microsoft_visual_cc packed

Link:

https://www.filescan.io/uploads/68d40ec274e5a28989913c0a/reports/b54f6a2b-7a0f-4fdf-9aac-e723964b51b2/overview

Verdict:

Malicious

Labled as:

Win/malicious_confidence_90%

Link:

https://www.hybrid-analysis.com/sample/4cff3833a6be883d48baa6d083f723aafab1b015a75b592808a02d1d82e0e1fa

Verdict:

Malicious

File Type:

exe x32

First seen:

2025-09-24T09:56:00Z UTC

Last seen:

2025-09-24T09:56:00Z UTC

Hits:

~100

Detections:

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

Link:

https://opentip.kaspersky.com/4cff3833a6be883d48baa6d083f723aafab1b015a75b592808a02d1d82e0e1fa/results?tab=lookup

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/fccb6e50-fbbc-4ca7-9e30-d54bde404e80

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/4cff3833a6be883d48baa6d083f723aafab1b015a75b592808a02d1d82e0e1fa

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/dbfb8c461d468566f55984fa3c2367d1

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/4cff3833a6be883d48baa6d083f723aafab1b015a75b592808a02d1d82e0e1fa/

Verdict:

Malicious

Threat:

Family.FORMBOOK

Link:

https://tip.neiki.dev/file/4cff3833a6be883d48baa6d083f723aafab1b015a75b592808a02d1d82e0e1fa

Threat name:

Win32.Trojan.Strab

Status:

Malicious

First seen:

2025-09-24 12:33:22 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

21 of 24 (87.50%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=jt7tqm5gx2ed2sf2u3iih5zdvl5ldmavu5nvskaiuawr3axa4h5a._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/250924-sx28paap5t/

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

Suspicious use of SetThreadContext

Formbook payload

Formbook

Formbook family

Verdict:

Suspicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/e20ec345-0b4c-4630-9ddc-2592bd3f8a6c

Unpacked files

SH256 hash:

4cff3833a6be883d48baa6d083f723aafab1b015a75b592808a02d1d82e0e1fa

MD5 hash:

dbfb8c461d468566f55984fa3c2367d1

SHA1 hash:

127d98f31eb2856b4b449ddb6516399276acee1b

Link:

https://www.unpac.me/results/e661f4c1-8a40-4e4c-855f-5fa9efae40bb/

SH256 hash:

f7af09c8cd9ba7837ea58aed356668ca2afb3ccf0703e4f138f0fd5237bc1c7f

MD5 hash:

f18f4f1d9319df0a308e9ec77ab711d6

SHA1 hash:

dcec33a58bfc91a917f55f6957bad4c85264a501

Link:

https://www.unpac.me/results/e661f4c1-8a40-4e4c-855f-5fa9efae40bb/

SH256 hash:

7aa788e89c933053f9573ec351596a4bbdc33078fc30cb7417893208fdb610a4

MD5 hash:

25073a8890705437f81748860d4eecfa

SHA1 hash:

ebdb8bf8ffadaa8ed26f4258b89b1f024c034f9e

Detections:

win_formbook_g0

Link:

https://www.unpac.me/results/e661f4c1-8a40-4e4c-855f-5fa9efae40bb/

Parent samples :

d851f10c14fdd10ee13710f52922f04a669f6ab27fcd35e62c78ad0a3d2dfc7c
4cff3833a6be883d48baa6d083f723aafab1b015a75b592808a02d1d82e0e1fa
e5da179849ee760128e70e7b1c34f95131a3c5247a0fbcb00bb4b76206819be0
63957e1ad8fe83595ab9a3a5e7de1715d0e926b2609f8142d7495792b656ac35
8967837eab9afe73b438a53a780e5258567de638ccb4bf8685f6a3551f67d60f
156b7ee585680c1edc643949e4311faf439c5be77a13ec2d2303e7a3115f1efc

Malware family:

FormBook

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/4cff3833a6be/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/4cff3833a6be883d48baa6d083f723aafab1b015a75b592808a02d1d82e0e1fa

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:	TH_Generic_MassHunt_Win_Malware_2025_CYFARE Create hunting rule
Author:	CYFARE
Description:	Generic Windows malware mass-hunt 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 4cff3833a6be883d48baa6d083f723aafab1b015a75b592808a02d1d82e0e1fa

(this sample)

Delivery method

Distributed via e-mail attachment

Delivery method

Distributed via e-mail attachment

Cape

https://www.capesandbox.com/analysis/28834/

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