MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4e40765dcf57e97677b1e5ed922e0810ba581de04a80b684960f0eb7dac73825. 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: 13

Intelligence 13 IOCs YARA 21 File information Comments

SHA256 hash:	4e40765dcf57e97677b1e5ed922e0810ba581de04a80b684960f0eb7dac73825
SHA3-384 hash:	d6eab1af8d515642adaa5eea063fb1f8cbe15fc1931908418fe5d9ba6fd742af7114c8fc9b72f7f2d2b4413285414611
SHA1 hash:	676fc2c2d65146625afca5883aaf9f50a18c8046
MD5 hash:	0baddf78beddfb308c28fa4efccfe6c9
humanhash:	carpet-jig-uniform-cardinal
File name:	Qte1123.exe
Download:	download sample
Signature	Formbook Create hunting rule
File size:	660'992 bytes
First seen:	2023-11-27 14:52:02 UTC
Last seen:	2023-11-27 16:41:54 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'657 x AgentTesla, 19'468 x Formbook, 12'206 x SnakeKeylogger)
ssdeep	12288:RlvyPOIccHB/A0ABgIrz2vwjZ6AYF1/zGMhXZirbJ5KBibsNxDEK4ENzr:uGI3HBA0OqqZvYT/9XibJaiwsEN
TLSH	T12AE42394A9944FF0DC9A47BE41F529D183799DFBB850FA5C0E8830E58F77B827222487
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	9c8e9f0fa7b537b3 (1 x Formbook)
Reporter	malwarelabnet
Tags:	exe FormBook

Intelligence

File Origin

# of uploads :

# of downloads :

287

Origin country :

Vendor Threat Intelligence

Detection:

Formbook

Link:

https://www.capesandbox.com/analysis/460700/

Detection(s):

SecuriteInfo.com.Trojan.Inject4.59820.22727.17150.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

Сreating synchronization primitives

Launching a process

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

packed

Link:

https://www.filescan.io/uploads/6564ad16380413dc0c234e70/reports/7471ff2a-4419-413b-9a11-79741a2c23e5/overview

Verdict:

Malicious

Labled as:

Win/malicious_confidence_100%

Link:

https://www.hybrid-analysis.com/sample/4e40765dcf57e97677b1e5ed922e0810ba581de04a80b684960f0eb7dac73825

Result

Verdict:

MALICIOUS

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/1c14df6e-3816-406e-b218-0fb4d4dbaa4e

Result

Threat name:

FormBook

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1348624

Signature

.NET source code contains potential unpacker

Antivirus / Scanner detection for submitted sample

Antivirus detection for URL or domain

Injects a PE file into a foreign processes

Machine Learning detection for sample

Malicious sample detected (through community Yara rule)

Maps a DLL or memory area into another process

Multi AV Scanner detection for submitted file

Performs DNS queries to domains with low reputation

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

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

Uses runas.exe to run programs with evaluated privileges

Writes to foreign memory regions

Yara detected AntiVM3

Yara detected FormBook

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/4e40765dcf57e97677b1e5ed922e0810ba581de04a80b684960f0eb7dac73825

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/4e40765dcf57e97677b1e5ed922e0810ba581de04a80b684960f0eb7dac73825/

Threat name:

ByteCode-MSIL.Trojan.AgentTesla

Status:

Malicious

First seen:

2023-11-24 06:37:52 UTC

File Type:

PE (.Net Exe)

Extracted files:

AV detection:

21 of 37 (56.76%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=jzahmxopk7uxm55r4xwzelqicc5fqhpajkalnbewb4hlpwwhhasq._file

Verdict:

malicious

Label(s):

formbook

Result

Malware family:

n/a

Score:

7/10

Tags:

n/a

Link:

https://tria.ge/reports/231127-r8rqnahb84/

Behaviour

Modifies Internet Explorer settings

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of UnmapMainImage

Suspicious use of WriteProcessMemory

Suspicious use of SetThreadContext

Loads dropped DLL

Unpacked files

SH256 hash:

d32830ee2c14d3d16249320512cc93de835a000d42a2c744ce488052ece9a016

MD5 hash:

481c2e8f96d477d2ccc6e6f988c936e9

SHA1 hash:

6c20399797990f60c057a4c8c10d5213699c4009

Detections:

win_formbook_w0

win_formbook_g0

Link:

https://www.unpac.me/results/4a1f972d-1674-4b8f-a996-6f3bbb649b83/

Parent samples :

b937e279fde4541f11647041a467d331dfc78562d9e267a7eab970d62dd017f5
4e40765dcf57e97677b1e5ed922e0810ba581de04a80b684960f0eb7dac73825

SH256 hash:

81f003237e854636e0034f5735df9d21befe666d80d8bef4b6ad3ebaf5526d4d

MD5 hash:

54733a5c2f94b2e0b289ce2c283350d5

SHA1 hash:

cfb861c6b12cae623c8c17fb135f62d7168ed0a2

Link:

https://www.unpac.me/results/4a1f972d-1674-4b8f-a996-6f3bbb649b83/

SH256 hash:

45c5207b56503228f79e5eca7020ba46732acd8f1b740c67c405b0fa518d456b

MD5 hash:

53b0f16ad64ded14e4b49b87bb8b9f29

SHA1 hash:

7ec3177d060c735f5aa148c43521e2a3d77e3b41

Link:

https://www.unpac.me/results/4a1f972d-1674-4b8f-a996-6f3bbb649b83/

SH256 hash:

d01f3dea3851602ba5a0586c60430d286adf6fcc7e17aab080601a66630606e5

MD5 hash:

579197d4f760148a9482d1ebde113259

SHA1 hash:

cf6924eb360c7e5a117323bebcb6ee02d2aec86d

Link:

https://www.unpac.me/results/4a1f972d-1674-4b8f-a996-6f3bbb649b83/

SH256 hash:

b32f64139e9cfc3afa129ec4bd0adced5c90f5bb1d3cde1d1a6415165b875370

MD5 hash:

9385019216c64b66fb1e4ceae3ca9486

SHA1 hash:

ad74faf0fc06b34ff4ddd1f44b8cdea500c8fef6

Link:

https://www.unpac.me/results/4a1f972d-1674-4b8f-a996-6f3bbb649b83/

SH256 hash:

c1c3c04b0c4a684f53bec6ff7a4ebbc493f14dd2991eabdfc87a0f5dfff972b4

MD5 hash:

9f3fe65c2f9135c021e5cc26c066ae1d

SHA1 hash:

1409389410f326f8cd4619edf05ced7609bd30c5

Link:

https://www.unpac.me/results/4a1f972d-1674-4b8f-a996-6f3bbb649b83/

SH256 hash:

1358f966f09a8c9560736a7eda8b9f7378a95788abb868e462db6a0d9220d1ea

MD5 hash:

42bfe332de386a4cd699c0c7ed988a54

SHA1 hash:

ffc6ab30fb101399828fc3cfa5b30e2983ced1e3

Link:

https://www.unpac.me/results/4a1f972d-1674-4b8f-a996-6f3bbb649b83/

SH256 hash:

04b63de85bfdf9188e210f530bf60f35b3499dd8567730b8b5bc8379708c1e71

MD5 hash:

5ca1e5946f742473d7e72cdd6daa8195

SHA1 hash:

c5b0401165fe181d71448235619abe94b68333d9

Link:

https://www.unpac.me/results/4a1f972d-1674-4b8f-a996-6f3bbb649b83/

SH256 hash:

af032a17db9bccf0ee428108518061eb7098f966b8a4f37bd9c216358ecbf667

MD5 hash:

b26e5cfc19e8fb5a8c4019d8c1cfbc46

SHA1 hash:

c18c19a870c328bd7f7d293fc2989f47ca87c0cb

Link:

https://www.unpac.me/results/4a1f972d-1674-4b8f-a996-6f3bbb649b83/

SH256 hash:

c5279e77b39069f53b278bd68927e97e93e3a0e0be4ae2a22ae977452cf316b2

MD5 hash:

9b67a6b3e6b2d42607dbae1cf6fcb843

SHA1 hash:

c025bd94bc8c5ca77a5dda87a6b87de3617d5331

Link:

https://www.unpac.me/results/4a1f972d-1674-4b8f-a996-6f3bbb649b83/

SH256 hash:

8055590e1b0701e80bf5e16934661c531030d874451bb178670589b95fb527d4

MD5 hash:

45f2f1496b01cef3396b6a7c6f6ec355

SHA1 hash:

5036bf2bdf6a104f11edfa9a19d16458485ace1e

Link:

https://www.unpac.me/results/4a1f972d-1674-4b8f-a996-6f3bbb649b83/

SH256 hash:

920a982c2dd75d125b0e3a383062a15e95bb4b73e568f23f300bf19d84b1fe73

MD5 hash:

d1bc619ef80db0c7b07824bf8c731e40

SHA1 hash:

23efd1e383fbd432c388c053580ee3d5d8929f88

Link:

https://www.unpac.me/results/4a1f972d-1674-4b8f-a996-6f3bbb649b83/

SH256 hash:

4e40765dcf57e97677b1e5ed922e0810ba581de04a80b684960f0eb7dac73825

MD5 hash:

0baddf78beddfb308c28fa4efccfe6c9

SHA1 hash:

676fc2c2d65146625afca5883aaf9f50a18c8046

Link:

https://www.unpac.me/results/4a1f972d-1674-4b8f-a996-6f3bbb649b83/

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/4e40765dcf57/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/4e40765dcf57e97677b1e5ed922e0810ba581de04a80b684960f0eb7dac73825

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:	shellcode Create hunting rule
Author:	nex
Description:	Matched shellcode byte patterns

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_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/460700/

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