MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 efa23692aeb1a3c3365ba0c850e3248f4f0009bf386ff101dcd8dafe65f70024. 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: 16

Intelligence 16 IOCs YARA 12 File information Comments

SHA256 hash:	efa23692aeb1a3c3365ba0c850e3248f4f0009bf386ff101dcd8dafe65f70024
SHA3-384 hash:	557b3868d1275c6091b8ffeea3df96ca96b347fea8b8e10b0e63a858524ecd1fcb21f8a3ab6d77899b7477bef00ec9ce
SHA1 hash:	a9ca20449144f01accfab92c209c81d1cce40400
MD5 hash:	bd136c4407daa43a5bda0b7a11cac0e7
humanhash:	music-butter-hot-music
File name:	PO-220183_EH EUROPE GMBH_PDF.exe
Download:	download sample
Signature	Formbook Create hunting rule
File size:	1'174'528 bytes
First seen:	2025-06-17 15:34:43 UTC
Last seen:	2025-07-07 14:08:06 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	3d95adbf13bbe79dc24dccb401c12091 (881 x AgentTesla, 737 x FormBook, 236 x SnakeKeylogger)
ssdeep	24576:Ptb20pkaCqT5TBWgNQ7av3O5dRzDIdOMCn6A:MVg5tQ7av3ozDIwMY5
Threatray	2'373 similar samples on MalwareBazaar
TLSH	T1FE45D01373DE8361C3725273BA25BB01BEBB782506A5F96B2FD4093DE920121525EB73
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
dhash icon	aae2f3e38383b629 (2'034 x Formbook, 1'183 x CredentialFlusher, 666 x AgentTesla)
Reporter	James_inthe_box
Tags:	exe FormBook

Intelligence

File Origin

# of uploads :

# of downloads :

491

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

PO-220183_EH EUROPE GMBH_PDF.exe

Verdict:

No threats detected

Analysis date:

2025-06-17 15:36:17 UTC

Tags:

n/a

Link:

https://app.any.run/tasks/9958726e-6be1-41e1-b88b-4326a3df6bd3

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/9891/

Verdict:

Malicious

Score:

92.5%

Link:

https://cyber-fortress.com/docs/result/index.php?id=68518c92c93b4cf9bf0dc44a

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

Labled as:

Win/malicious_confidence_70%

Link:

https://www.hybrid-analysis.com/sample/efa23692aeb1a3c3365ba0c850e3248f4f0009bf386ff101dcd8dafe65f70024

Malware family:

Formbook

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/f7a46253-8526-4b6c-86ba-443d900a10fb

Result

Threat name:

FormBook

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1716627

Signature

Antivirus / Scanner detection for submitted sample

Binary is likely a compiled AutoIt script file

Initial sample is a PE file and has a suspicious name

Joe Sandbox ML detected suspicious sample

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)

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/efa23692aeb1a3c3365ba0c850e3248f4f0009bf386ff101dcd8dafe65f70024

Verdict:

Malware

YARA:

7 match(es)

Tags:

AutoIt Decompiled Executable PE (Portable Executable) Suspect Win 32 Exe x86

Link:

https://app.malva.re/file/bd136c4407daa43a5bda0b7a11cac0e7

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/efa23692aeb1a3c3365ba0c850e3248f4f0009bf386ff101dcd8dafe65f70024/

Threat name:

Win32.Backdoor.FormBook

Status:

Malicious

First seen:

2025-06-17 12:57:17 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

19 of 24 (79.17%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=56rdnevowgr4gns3udefbyzer5hqacn7hbx7cao43dnp4zpxaasa._file

Result

Malware family:

n/a

Score:

5/10

Tags:

discovery

Link:

https://tria.ge/reports/250617-s224gscn5s/

Behaviour

Suspicious use of WriteProcessMemory

Program crash

System Location Discovery: System Language Discovery

Verdict:

Malicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/6f43783b-b02d-4c5d-9633-a0590806893b

Unpacked files

SH256 hash:

efa23692aeb1a3c3365ba0c850e3248f4f0009bf386ff101dcd8dafe65f70024

MD5 hash:

bd136c4407daa43a5bda0b7a11cac0e7

SHA1 hash:

a9ca20449144f01accfab92c209c81d1cce40400

Link:

https://www.unpac.me/results/fbbdb40f-1525-4c66-b5c1-35a52a53b53f/

SH256 hash:

b17ed7e79ad5329b1261cfd4a7e54752abbdc17a32e9d88264a7ba3f8d8dec27

MD5 hash:

02364b5cfdc549c0a628a5c287ee2ffc

SHA1 hash:

57f5786958d8afe9aa4161b34aba10220c37d184

Link:

https://www.unpac.me/results/fbbdb40f-1525-4c66-b5c1-35a52a53b53f/

SH256 hash:

b9b4b55306aeb0524834dae0a28344d46e0cd38fc8a531c42e2553746236991e

MD5 hash:

9208c5a17f6b9c4248d9ba9050e6dcc6

SHA1 hash:

5d4a72336a090da5ec4177d3f754c9bb886af58b

Detections:

win_formbook_g0

Link:

https://www.unpac.me/results/fbbdb40f-1525-4c66-b5c1-35a52a53b53f/

Parent samples :
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Malware family:

FormBook

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/efa23692aeb1/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/efa23692aeb1a3c3365ba0c850e3248f4f0009bf386ff101dcd8dafe65f70024

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:	DebuggerCheck__API Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

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:	meth_stackstrings Create hunting rule
Author:	Willi Ballenthin

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:	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)

Rule name:	YahLover Create hunting rule
Author:	Kevin Falcoz
Description:	YahLover

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/9891/

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