MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f5f1893062f88beb22773850b6e330ac082f319a36098574b402033dd18c4800. 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: 15

Intelligence 15 IOCs YARA 5 File information Comments

SHA256 hash:	f5f1893062f88beb22773850b6e330ac082f319a36098574b402033dd18c4800
SHA3-384 hash:	9979ce69826868f0f896193af464c49887dc7c258c294e53b98753874643faf5ebb4ab7234ba6c54e21dec7d74944083
SHA1 hash:	7efa2cf568e6034e6bf271ea618ba77461eb79bd
MD5 hash:	faa65cb23f8b9fa5e6e0ed41fd136553
humanhash:	five-white-fanta-nitrogen
File name:	faa65cb23f8b9fa5e6e0ed41fd136553.exe
Download:	download sample
Signature	Stealc Create hunting rule
File size:	337'408 bytes
First seen:	2023-05-31 08:19:31 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	7826118a518ad3bb6f3d483135c427db (2 x ArkeiStealer, 2 x Stop, 2 x Smoke Loader)
ssdeep	3072:G7RYhTOdNk7dpJpFMj9sYcWP3+9PDMfiiEWk0nmC/6sZsfdS:ARMqNcM5sYcWm9PDMfiLwmIlEg
Threatray	245 similar samples on MalwareBazaar
TLSH	T163743A0363E17C60F5264A728E2EC6E8761EF9508F5537E75B58AB2F09712A2C172F31
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	0020608808432000 (1 x Stealc)
Reporter	abuse_ch
Tags:	exe Stealc

Intelligence

File Origin

# of uploads :

# of downloads :

225

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

faa65cb23f8b9fa5e6e0ed41fd136553.exe

Verdict:

Malicious activity

Analysis date:

2023-05-31 08:28:51 UTC

Tags:

stealc trojan stealer loader

Link:

https://app.any.run/tasks/c60a5b3b-31af-4bd2-a8f6-63eef5b47b04

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/393986/

Detection(s):

Win.Ransomware.Generic-10002972-0

Win.Ransomware.Zusy-10003124-0

Win.Ransomware.Zusy-10003125-0

Result

Verdict:

Malware

Maliciousness:

Behaviour

Сreating synchronization primitives

DNS request

Sending an HTTP GET request

Creating a file

Reading critical registry keys

Changing a file

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

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

greyware stealc

Link:

https://www.filescan.io/uploads/647703347bb26403f2d5a47e/reports/beaf2707-798f-4f9e-8a73-185c0a8116bb/overview

Verdict:

Malicious

Labled as:

Win/malicious_confidence_100%

Link:

https://www.hybrid-analysis.com/sample/f5f1893062f88beb22773850b6e330ac082f319a36098574b402033dd18c4800

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/54430bdd-56ff-44ca-affb-295cfa45c4f6

Result

Threat name:

Stealc, Vidar

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1245923

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

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

Yara detected Stealc

Yara detected Vidar stealer

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/f5f1893062f88beb22773850b6e330ac082f319a36098574b402033dd18c4800/

Threat name:

Win32.Spyware.Stealc

Status:

Malicious

First seen:

2023-05-30 04:19:14 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

28 of 37 (75.68%)

Threat level:

2/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=6xyysmdc7cf6witxhbilnyzqvqec6mm2gyeyk5fuaibt3ummjaaa._file

Verdict:

malicious

Result

Malware family:

stealc

Score:

10/10

Tags:

family:stealc discovery spyware stealer

Link:

https://tria.ge/reports/230531-j8fpdsdg39/

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

Detects Stealc stealer

Stealc

Unpacked files

SH256 hash:

342fd2364754f2b4384f6a062db55086dbc078ecaa3b9372d1b2b1acbe23cbf7

MD5 hash:

e9ace1656be682011f68b4683ea12eba

SHA1 hash:

474a3fe00e6106f75392e54f8411b629f5f372e8

Detections:

win_stealc_w0

win_stealc_auto

win_stealc_a0

Link:

https://www.unpac.me/results/3b5ca002-47ee-491b-8150-1a299cdfad50/

Parent samples :
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SH256 hash:

f5f1893062f88beb22773850b6e330ac082f319a36098574b402033dd18c4800

MD5 hash:

faa65cb23f8b9fa5e6e0ed41fd136553

SHA1 hash:

7efa2cf568e6034e6bf271ea618ba77461eb79bd

Link:

https://www.unpac.me/results/3b5ca002-47ee-491b-8150-1a299cdfad50/

Malware family:

Stealc

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/f5f1893062f8/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/f5f1893062f88beb22773850b6e330ac082f319a36098574b402033dd18c4800

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

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_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/