MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5de40cb80d71ff5cabc77ed1ae871532f78c3a74823c92e0a54ed1a8fd062297. 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 25 File information Comments

SHA256 hash:	5de40cb80d71ff5cabc77ed1ae871532f78c3a74823c92e0a54ed1a8fd062297
SHA3-384 hash:	b2ddbb717bc052af17c31a4d3d4bd2105086aa3dc8a866240b0e98ba159ac5e4adc0b2c933c7b93f410907cce5f2402a
SHA1 hash:	8f3c9e5e3d1c1048cc685c82c628ecddad3ece8d
MD5 hash:	7fecdd814f97f76b86f7e58cd04bc9e6
humanhash:	spring-sodium-wolfram-tennis
File name:	Halkbank,pdf.exe
Download:	download sample
Signature	Formbook Create hunting rule
File size:	1'238'528 bytes
First seen:	2025-08-25 10:25:29 UTC
Last seen:	2025-09-05 13:07:30 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	1895460fffad9475fda0c84755ecfee1 (308 x Formbook, 52 x AgentTesla, 36 x SnakeKeylogger)
ssdeep	24576:L5EmXFtKaL4/oFe5T9yyXYfP1ijXdaJaDhtBKU8J4wpFq:LPVt/LZeJbInQRaJa9tBKUdwp
TLSH	T1DB45BE027391C062FFAB91334F5AF6115BBC79260123A62F13981DB9BD705B1563EBA3
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	cocaman
Tags:	exe FormBook payment QUOTATION

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

Halkbank,pdf.7z

Verdict:

Suspicious activity

Analysis date:

2025-08-25 10:46:35 UTC

Tags:

arch-exec

Link:

https://app.any.run/tasks/a39883c4-6d9f-45fa-9d4b-5414eeb36c0f

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/23405/

Verdict:

Malicious

Score:

91.7%

Link:

https://cyber-fortress.com/docs/result/index.php?id=68ac3a3deb163e0ec182a56b

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:

autoit microsoft_visual_cc nymeria obfuscated packed packed packer_detected threat

Link:

https://www.filescan.io/uploads/68ac3abb28a89d9dd4f36a46/reports/4b41945e-12ae-4275-a660-4110ab4f23ba/overview

Verdict:

Malicious

Labled as:

AIT:Trojan.Nymeria

Link:

https://www.hybrid-analysis.com/sample/5de40cb80d71ff5cabc77ed1ae871532f78c3a74823c92e0a54ed1a8fd062297

Verdict:

Malicious

File Type:

exe x32

First seen:

2025-08-21T02:34:00Z UTC

Last seen:

2025-08-21T02:34:00Z UTC

Hits:

~1000

Link:

https://opentip.kaspersky.com/5de40cb80d71ff5cabc77ed1ae871532f78c3a74823c92e0a54ed1a8fd062297/results?tab=lookup

Malware family:

Formbook

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/0b7b89f9-6155-42c4-bde0-2cdaa8407431

Result

Threat name:

FormBook

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1764446

Signature

Binary is likely a compiled AutoIt script file

Found API chain indicative of sandbox detection

Maps a DLL or memory area into another process

Modifies the context of a thread in another process (thread injection)

Multi AV Scanner detection for submitted file

Performs DNS queries to domains with low reputation

Queues an APC in another process (thread injection)

Suricata IDS alerts for network traffic

Switches to a custom stack to bypass stack traces

Tries to harvest and steal browser information (history, passwords, etc)

Tries to steal Mail credentials (via file / registry access)

Writes to foreign memory regions

Yara detected FormBook

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/5de40cb80d71ff5cabc77ed1ae871532f78c3a74823c92e0a54ed1a8fd062297

Gathering data

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/5de40cb80d71ff5cabc77ed1ae871532f78c3a74823c92e0a54ed1a8fd062297/

Threat name:

Win32.Trojan.AutoitInject

Status:

Malicious

First seen:

2025-08-21 07:47:12 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

20 of 24 (83.33%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=lxsazoanoh7vzk6hp3i25byvgl3yyotuqi6jfyffj3i2r7igeklq._file

Verdict:

malicious

Label(s):

formbook

Similar samples:

error

Formbook

Result

Malware family:

formbook

Score:

10/10

Tags:

family:formbook discovery rat spyware stealer trojan

Link:

https://tria.ge/reports/250825-mhf41stzfv/

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/9aa971f0-7505-45ce-a34a-54453688f26d

Unpacked files

SH256 hash:

5de40cb80d71ff5cabc77ed1ae871532f78c3a74823c92e0a54ed1a8fd062297

MD5 hash:

7fecdd814f97f76b86f7e58cd04bc9e6

SHA1 hash:

8f3c9e5e3d1c1048cc685c82c628ecddad3ece8d

Link:

https://www.unpac.me/results/46949259-b51d-4e29-a5ac-b5a5264247e5/

SH256 hash:

ab600bb53740320b64bcadfe958098e62a3f571fd410d80f17ed64fa7284e23b

MD5 hash:

08bca8e0a0f827f6dbc11ce93663cc65

SHA1 hash:

70de315a424cbfede37e47ac249d6b8781325a0c

Link:

https://www.unpac.me/results/46949259-b51d-4e29-a5ac-b5a5264247e5/

SH256 hash:

109499fe727a3836c0e07d87139f9e573ed9630e9ced05a3d67a04dfea633336

MD5 hash:

476c2a3791e77cfd5c0293ae4369ec26

SHA1 hash:

cdf8d671c463d0c5b453feffa9cd09fe0a1d0f87

Detections:

win_formbook_g0

Link:

https://www.unpac.me/results/46949259-b51d-4e29-a5ac-b5a5264247e5/

Parent samples :

b3519529f6d34d7fa3108901fe68b12f4577de4e610433e1ae733666fd8f1126
63042251c69af48ed27bf8dc6209781fa1b37dbd799105d465f80c4a91e10ac8
5de40cb80d71ff5cabc77ed1ae871532f78c3a74823c92e0a54ed1a8fd062297
18082263ea483e29b2c7a346f29f4ff19a841f6b3e0d47cd4790198d5941a57f
08b96a68c593011798acf77b26d2564f0855ad6792f9fb055e9bea2bcae4c1c1
7a3cff64ac762d50b7a624e242fe4f2f6e23ad03da661f9b4046e6b604b31836
b8adc251d1e8c5217d3de458c277b3866f1b90e8d3d998f0b40ba5df25cbee17
fd2ce532e9c7694be3ffe0ce3f0c9024929fd3dca7e9147bafb7b7ef1aeeded8

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/5de40cb80d71ff5cabc77ed1ae871532f78c3a74823c92e0a54ed1a8fd062297

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)