MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 22b5f7e3dd15c8f0205d49e4a17f851cbffc636fbbda8e5d371a1a91db0e538d. 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: 14

Intelligence 14 IOCs YARA 8 File information Comments

SHA256 hash:	22b5f7e3dd15c8f0205d49e4a17f851cbffc636fbbda8e5d371a1a91db0e538d
SHA3-384 hash:	98042629f7b1fba64443dcc20459fd8f4a74f28e764a308708056af3da51488a4fadc5ceaad20c6a89307075f5b2e396
SHA1 hash:	fecc2b8576b9a8c0260f08eeb53bf547b6e85683
MD5 hash:	13578554209693c995b537a2f51007bd
humanhash:	kitten-nebraska-yellow-pasta
File name:	file
Download:	download sample
Signature	Stealc Create hunting rule
File size:	260'096 bytes
First seen:	2023-10-22 11:36:26 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	fc20e897770322541e2213674466dedd (1 x MarsStealer, 1 x Smoke Loader, 1 x CoinMiner)
ssdeep	3072:HN1BNDeJAymECtP3ZL1zCE7QKH87oDs0vbC+WCKTxIlBb:JBoAyDCtv3VUZ7lqbCMsxu
Threatray	295 similar samples on MalwareBazaar
TLSH	T1E444E01277A0C832E42759355930C6A62E7BBCB29A3581CB37583E3DAE313E15B71B53
TrID	47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 15.9% (.EXE) Win64 Executable (generic) (10523/12/4) 9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 7.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):
dhash icon	e0aca4b4a4a4b0b2 (1 x Stealc)
Reporter	andretavare5
Tags:	exe Stealc

andretavare5

Sample downloaded from http://jackantonio.top/timeSync.exe

Intelligence

File Origin

# of uploads :

# of downloads :

319

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

file

Verdict:

Malicious activity

Analysis date:

2023-10-22 11:37:11 UTC

Tags:

stealc stealer

Link:

https://app.any.run/tasks/c31c144e-d033-4d08-86ec-dd5e8a16a4df

Note:

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

Detection(s):

SecuriteInfo.com.Win32.PWSX-gen.17649.9287.UNOFFICIAL

Result

Verdict:

Clean

Maliciousness:

Behaviour

Сreating synchronization primitives

DNS request

Launching the default Windows debugger (dwwin.exe)

Searching for the window

Gathering data

Verdict:

Malicious

Labled as:

Malware

Link:

https://www.hybrid-analysis.com/sample/22b5f7e3dd15c8f0205d49e4a17f851cbffc636fbbda8e5d371a1a91db0e538d

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:

Oski Stealer

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/5066a650-85fe-4e42-8099-f39f20e5c4fe

Result

Threat name:

Stealc, Vidar

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1330018

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 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/22b5f7e3dd15c8f0205d49e4a17f851cbffc636fbbda8e5d371a1a91db0e538d

Detection:

stealc

Link:

https://mwdb.cert.pl/sample/22b5f7e3dd15c8f0205d49e4a17f851cbffc636fbbda8e5d371a1a91db0e538d/

Threat name:

Win32.Trojan.Privateloader

Status:

Malicious

First seen:

2023-10-22 11:37:05 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

20 of 23 (86.96%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=ek27py65cxepaic5jhskc74fds77yy3pxpni4xjxdinjdwyokogq._file

Verdict:

malicious

Result

Malware family:

stealc

Score:

10/10

Tags:

family:stealc discovery spyware stealer

Link:

https://tria.ge/reports/231022-nq5m1sga41/

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 user/profile data of web browsers

Downloads MZ/PE file

Stealc

Malware Config

C2 Extraction:

http://wyttsebastian.top

Unpacked files

SH256 hash:

6404566039dd9b30f575283c4de06866086420c91426d47c02d810e77bee1229

MD5 hash:

797506b0d5793118f682b43151b952e1

SHA1 hash:

e7439b91e2c3ca9b471c933955311edbedf6aef2

Detections:

stealc

Link:

https://www.unpac.me/results/09bcdc30-06af-4827-a1bd-0ca4890b7081/

Parent samples :
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SH256 hash:

22b5f7e3dd15c8f0205d49e4a17f851cbffc636fbbda8e5d371a1a91db0e538d

MD5 hash:

13578554209693c995b537a2f51007bd

SHA1 hash:

fecc2b8576b9a8c0260f08eeb53bf547b6e85683

Link:

https://www.unpac.me/results/09bcdc30-06af-4827-a1bd-0ca4890b7081/

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/22b5f7e3dd15c8f0205d49e4a17f851cbffc636fbbda8e5d371a1a91db0e538d

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

Rule name:	DebuggerException__ConsoleCtrl 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_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/

Rule name:	yarahub_win_stealc_bytecodes_oct_2023 Create hunting rule
Author:	Matthew @ Embee_Research

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Dropped by

PrivateLoader

Delivery method

Distributed via drive-by

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