MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5d4ef95e2d68ad71b54c79a6a8fcfdee4d64ac4187e30a9b8523e0dc6cdedd10. 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: 14

Intelligence 14 IOCs YARA 21 File information Comments

SHA256 hash:	5d4ef95e2d68ad71b54c79a6a8fcfdee4d64ac4187e30a9b8523e0dc6cdedd10
SHA3-384 hash:	02a70f499d268dbe879aeb1622a5529b3b7ad0055ca90de929c8a1f033a956fa868399a05c921a2e827abb6bb5fe5de8
SHA1 hash:	077cb5c8339d955d36fc028cf2d62249f1f76fd2
MD5 hash:	37a5de12dd069405abac60b790787c89
humanhash:	crazy-idaho-delaware-uncle
File name:	SecuriteInfo.com.Win32.CrypterX-gen.14086.12579
Download:	download sample
Signature	Formbook Create hunting rule
File size:	572'416 bytes
First seen:	2023-11-27 02:54:50 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep	12288:aP72CANvm8cyUoTtiSlRyWqlme2+IhCm/IdM:7O8ZUowS/5vtgd
Threatray	2'165 similar samples on MalwareBazaar
TLSH	T137C4230195981232EDED97B14175E1B1EBB5DEF5B0A9E81C2C4F338D2B823085952DAF
TrID	71.1% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13) 10.2% (.EXE) Win64 Executable (generic) (10523/12/4) 6.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.3% (.EXE) Win32 Executable (generic) (4505/5/1) 2.0% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):
dhash icon	6000696971690068 (3 x AgentTesla, 3 x Formbook, 3 x SnakeKeylogger)
Reporter	SecuriteInfoCom
Tags:	exe FormBook

Intelligence

File Origin

# of uploads :

# of downloads :

316

Origin country :

Vendor Threat Intelligence

Detection:

Formbook

Link:

https://www.capesandbox.com/analysis/460494/

Detection(s):

SecuriteInfo.com.Win32.CrypterX-gen.14086.12579.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Sending a custom TCP request

Unauthorized injection to a recently created process

Restart of the analyzed sample

Creating a file

Gathering data

Verdict:

Unknown

Link:

https://www.hybrid-analysis.com/sample/5d4ef95e2d68ad71b54c79a6a8fcfdee4d64ac4187e30a9b8523e0dc6cdedd10

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.

Malware family:

Formbook

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/e0810142-d4a2-4d25-9122-9fd11084a092

Result

Threat name:

FormBook

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1348241

Signature

.NET source code contains potential unpacker

Antivirus detection for URL or domain

C2 URLs / IPs found in malware configuration

Found malware configuration

Injects a PE file into a foreign processes

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for domain / URL

Multi AV Scanner detection for submitted file

Tries to detect virtualization through RDTSC time measurements

Yara detected AntiVM3

Yara detected FormBook

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/5d4ef95e2d68ad71b54c79a6a8fcfdee4d64ac4187e30a9b8523e0dc6cdedd10

Detection:

formbook

Link:

https://mwdb.cert.pl/sample/5d4ef95e2d68ad71b54c79a6a8fcfdee4d64ac4187e30a9b8523e0dc6cdedd10/

Threat name:

ByteCode-MSIL.Trojan.AgentTesla

Status:

Malicious

First seen:

2023-11-27 01:40:59 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

21 of 37 (56.76%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=lvhpsxrnncwxdnkmpgtkr7h55zgwjlcbq7rqvg4fepqny3g63uia._file

Verdict:

malicious

Label(s):

formbook

Formbook

639d5d04a0ea4de3360bd342b8b821ad7f317d4520dd17da071fb24d316d13d0

Formbook

87c143225cbd6a7ade7b75353db06c18ec3a991b8db39c067c7028d33ec9d48c

Formbook

baa2e4bc9527c3b121f69e7d581344f27b3b8cfbb867857e5d2c8e7b6e6d03af

Formbook

+ 2'155 additional samples on MalwareBazaar

Result

Malware family:

formbook

Score:

10/10

Tags:

family:formbook campaign:vl53 rat spyware stealer trojan

Link:

https://tria.ge/reports/231127-defveadh82/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of SetThreadContext

Formbook payload

Formbook

Unpacked files

SH256 hash:

f0c6df38f613073f11d26aea44189977b1dc3932160a841bc6ce73b4999df3fd

MD5 hash:

1b5529fe8980205fa1169e7ecd4487a0

SHA1 hash:

6bb4f17912e958ca8ec3165d6023af93019c9278

Detections:

FormBook

win_formbook_w0

win_formbook_auto

win_formbook_g0

Formbook

Link:

https://www.unpac.me/results/3c46cef4-48f6-4b83-a184-9d8902333a3e/

Parent samples :

87c143225cbd6a7ade7b75353db06c18ec3a991b8db39c067c7028d33ec9d48c
baa2e4bc9527c3b121f69e7d581344f27b3b8cfbb867857e5d2c8e7b6e6d03af
5d4ef95e2d68ad71b54c79a6a8fcfdee4d64ac4187e30a9b8523e0dc6cdedd10

SH256 hash:

dc2a31ebcef7e1b02ef0b2237da0e126dfebaa6a6336f829c0194b89793e239b

MD5 hash:

3d9dd0ed4f6deb6ad320d84fa5a40542

SHA1 hash:

f2daf79f4bfd1118856e13e1487c99259415d39e

Link:

https://www.unpac.me/results/3c46cef4-48f6-4b83-a184-9d8902333a3e/

SH256 hash:

b40c51212af363bb685b5297ed6bf9f2b327f0ee31987c9eb4eb74fe79d925c6

MD5 hash:

af9c4cbc5be56020a32b6ae6c7d535d4

SHA1 hash:

ecd022f7261025c01779f742832372729e7b2bbf

Link:

https://www.unpac.me/results/3c46cef4-48f6-4b83-a184-9d8902333a3e/

SH256 hash:

3ca0d9f2f79431796d509be6ac4896ccf97ae300493097b52080ec09005f0612

MD5 hash:

a6b7f98dc74f2f765c2adbd25c041edc

SHA1 hash:

d176111073ad9c7e06082601934fd7b8fd6fe3d1

Link:

https://www.unpac.me/results/3c46cef4-48f6-4b83-a184-9d8902333a3e/

SH256 hash:

5d4ef95e2d68ad71b54c79a6a8fcfdee4d64ac4187e30a9b8523e0dc6cdedd10

MD5 hash:

37a5de12dd069405abac60b790787c89

SHA1 hash:

077cb5c8339d955d36fc028cf2d62249f1f76fd2

Link:

https://www.unpac.me/results/3c46cef4-48f6-4b83-a184-9d8902333a3e/

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/5d4ef95e2d68ad71b54c79a6a8fcfdee4d64ac4187e30a9b8523e0dc6cdedd10

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:	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:	Formbook Create hunting rule
Author:	kevoreilly
Description:	Formbook Payload

Rule name:	maldoc_find_kernel32_base_method_1 Create hunting rule
Author:	Didier Stevens (https://DidierStevens.com)

Rule name:	maldoc_getEIP_method_1 Create hunting rule
Author:	Didier Stevens (https://DidierStevens.com)

Rule name:	MD5_Constants Create hunting rule
Author:	phoul (@phoul)
Description:	Look for MD5 constants

Rule name:	meth_get_eip Create hunting rule
Author:	Willi Ballenthin

Rule name:	meth_stackstrings Create hunting rule
Author:	Willi Ballenthin

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

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

Rule name:	Windows_Trojan_Formbook Create hunting rule
Author:	@malgamy12

Rule name:	Windows_Trojan_Formbook_1112e116 Create hunting rule
Author:	Elastic Security

Rule name:	win_formbook_auto Create hunting rule
Author:	Felix Bilstein - yara-signator at cocacoding dot com
Description:	Detects win.formbook.

Rule name:	win_formbook_w0 Create hunting rule
Author:	@malgamy12

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/460494/

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