MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0523d96352c2028dd22fe5591db75e08c6d8ad76afd0baf2c0b5ce04ae850439. 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

Stealc

Vendor detections: 17

Intelligence 17 IOCs YARA 11 File information Comments

SHA256 hash:	0523d96352c2028dd22fe5591db75e08c6d8ad76afd0baf2c0b5ce04ae850439
SHA3-384 hash:	bacff02b9b30a86b576c7e4133d5076bef26a411b2b5d95ffe771e379acf5b83c79fdd43f465a4d2c5bcf712cb5891c2
SHA1 hash:	756389a0e84646853c77c496c1e5144e83cfd280
MD5 hash:	7af1a7f0c5d750567bb6c9db170ad76c
humanhash:	march-rugby-west-oven
File name:	syncUpd.exe
Download:	download sample
Signature	Stealc Create hunting rule
File size:	244'224 bytes
First seen:	2024-01-20 06:10:26 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	32c4c9cc81466c9706ba51df6dd4a366 (2 x GCleaner, 1 x RedLineStealer, 1 x Stealc)
ssdeep	3072:+Ey3Lh4tLjQ32P4UmRCVzfB97FvCucre/4eCiP75ugkQIs:+E24tLjQ3kBmRCVN97Rn34Y4fs
Threatray	568 similar samples on MalwareBazaar
TLSH	T1A6345D1392E17E50E5A64B328F3ED2E8765EF551BF5AFF5922288A1F18701B2C123713
TrID	46.6% (.CPL) Windows Control Panel Item (generic) (57583/11/19) 25.2% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 8.5% (.EXE) Win64 Executable (generic) (10523/12/4) 5.3% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 4.0% (.EXE) Win16 NE executable (generic) (5038/12/1)
File icon (PE):
dhash icon	0008182802020200 (1 x Tofsee, 1 x Stealc)
Reporter	adm1n_usa32
Tags:	exe Stealc

Intelligence

File Origin

# of uploads :

# of downloads :

297

Origin country :

Vendor Threat Intelligence

Malware family:

smoke

ID:

File name:

6369f6e4a8398cccbbebef2ae7078834d3f92d499257a59b4f9142bd5b079057.exe

Verdict:

Malicious activity

Analysis date:

2024-01-20 06:14:25 UTC

Tags:

stealer stealc loader fabookie smoke smokeloader

Link:

https://app.any.run/tasks/cf72fd55-cfed-4034-bbd2-2cefe1da4b08

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/471819/

Detection(s):

Win.Packer.pkr_ce1a-9980177-0

Result

Verdict:

Malware

Maliciousness:

Behaviour

Сreating synchronization primitives

Creating a file

Reading critical registry keys

Changing a file

Sending a custom TCP request

Creating a file in the %AppData% subdirectories

Creating a window

Running batch commands

Creating a process with a hidden window

Launching a process

Launching the default Windows debugger (dwwin.exe)

Searching for the window

Stealing user critical data

Sending an HTTP GET request to an infection source

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

fingerprint packed

Link:

https://www.filescan.io/uploads/65ab63f83a0cf312d517b4cd/reports/099ce6fc-24d0-4703-b9d6-fceb352c626a/overview

Verdict:

Malicious

Labled as:

Malware

Link:

https://www.hybrid-analysis.com/sample/0523d96352c2028dd22fe5591db75e08c6d8ad76afd0baf2c0b5ce04ae850439

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:

Stealc

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/82e8a1f7-e675-48cd-86d7-2128e4ac5c37

Result

Threat name:

Stealc, Vidar

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1377904

Signature

Antivirus / Scanner detection for submitted sample

Antivirus detection for URL or domain

C2 URLs / IPs found in malware configuration

Detected unpacking (changes PE section rights)

Detected unpacking (overwrites its own PE header)

Found evasive API chain (may stop execution after checking locale)

Found malware configuration

Found many strings related to Crypto-Wallets (likely being stolen)

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

Sample uses string decryption to hide its real strings

Self deletion via cmd or bat file

Snort IDS alert for network traffic

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

Tries to harvest and steal ftp login credentials

Tries to steal Crypto Currency Wallets

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

Yara detected Stealc

Yara detected Vidar stealer

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/0523d96352c2028dd22fe5591db75e08c6d8ad76afd0baf2c0b5ce04ae850439

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/0523d96352c2028dd22fe5591db75e08c6d8ad76afd0baf2c0b5ce04ae850439/

Threat name:

Win32.Spyware.Stealc

Status:

Malicious

First seen:

2024-01-20 04:18:29 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

25 of 38 (65.79%)

Threat level:

2/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=aur5sy2syibi3urp4vmr3n26bddnrllwv7ilv4wawxhajlufaq4q._file

Verdict:

malicious

Stealc

12f842c1065cf459f3e9fccf3abd75cc37af8f65c06bc7e93f29ec2cbdba9832

Stealc

44bcd434152120ee0a54faa492cadf39c04ce7ddde871ab6ba053a343a512d0f

Stealc

6ecc88149dfdad0b296e7aee3c554fc191b1371d09c51ee2e47ac0e145ee38ba

Stealc

76f5084bca22085b3c76484470899bcb77f86d41208d354cacd8129f0b464b00

Stealc

94df05071cad9595820a5132137d060b0d2d3cd122e5cad35a014d80a6bde02a

Stealc

a5e0ccb21c5eba05f7ede4fcb26987e87e34ea05e1b71206882a847cf3e5e7bd

Stealc

b9123eff82d12c62b247a51cdb9ea2b166d38f1ec8dba8b6ef9be868e44eda15

Stealc

+ 558 additional samples on MalwareBazaar

Result

Malware family:

stealc

Score:

10/10

Tags:

family:stealc discovery spyware stealer

Link:

https://tria.ge/reports/240120-gxlp6adacj/

Behaviour

Checks processor information in registry

Delays execution with timeout.exe

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Enumerates physical storage devices

Program crash

Accesses cryptocurrency files/wallets, possible credential harvesting

Checks installed software on the system

Checks computer location settings

Deletes itself

Loads dropped DLL

Reads data files stored by FTP clients

Reads user/profile data of web browsers

Downloads MZ/PE file

Stealc

Malware Config

C2 Extraction:

http://185.172.128.79

Unpacked files

SH256 hash:

97b692b271ecec8bd56b1fb589f4e26f070fac9576e6ca7b69e6369a6318a18f

MD5 hash:

225ea83407a94f6d762631a1dca8df4e

SHA1 hash:

0a197437744336c6d5c4f649a9c7e55939817dc6

Detections:

stealc

win_stealc_auto

win_stealc_a0

Link:

https://www.unpac.me/results/a1e54f01-842c-4832-ac2d-e9dd1fda2b3e/

Parent samples :
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SH256 hash:

0523d96352c2028dd22fe5591db75e08c6d8ad76afd0baf2c0b5ce04ae850439

MD5 hash:

7af1a7f0c5d750567bb6c9db170ad76c

SHA1 hash:

756389a0e84646853c77c496c1e5144e83cfd280

Link:

https://www.unpac.me/results/a1e54f01-842c-4832-ac2d-e9dd1fda2b3e/

Malware family:

Stealc

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/0523d96352c2/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/0523d96352c2028dd22fe5591db75e08c6d8ad76afd0baf2c0b5ce04ae850439

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:	BitcoinAddress Create hunting rule
Author:	Didier Stevens (@DidierStevens)
Description:	Contains a valid Bitcoin address

Rule name:	DebuggerCheck__API 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:	detect_Mars_Stealer Create hunting rule
Author:	@malgamy12
Description:	detect_Mars_Stealer

Rule name:	infostealer_win_stealc_standalone Create hunting rule
Description:	Find standalone Stealc sample based on decryption routine or characteristic strings
Reference:	https://blog.sekoia.io/stealc-a-copycat-of-vidar-and-raccoon-infostealers-gaining-in-popularity-part-1/

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

Rule name:	Windows_Trojan_Smokeloader_3687686f Create hunting rule
Author:	Elastic Security

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

Rule name:	win_stealc_bytecodes_oct_2023 Create hunting rule
Author:	Matthew @ Embee_Research
Description:	Bytecodes present in Stealc decoding routine

Rule name:	win_stealc_w0 Create hunting rule
Author:	crep1x
Description:	Find standalone Stealc sample based on decryption routine or characteristic strings
Reference:	https://blog.sekoia.io/stealc-a-copycat-of-vidar-and-raccoon-infostealers-gaining-in-popularity-part-1/