MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4ce725a2c6e974d7aa4f05c651e803d40efa218ec2668386ce80e3249c577f03. 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: 13

Intelligence 13 IOCs YARA 20 File information Comments

SHA256 hash:	4ce725a2c6e974d7aa4f05c651e803d40efa218ec2668386ce80e3249c577f03
SHA3-384 hash:	e1fea7c31fbcdbea11d3601d13253f1ea3a2cfb80d3255a708b16ee0040c1f7e2144f7e726264930abfedd4178bb3113
SHA1 hash:	0bc139b633d58bd6a14297e8731d8c449aaf82f7
MD5 hash:	5c5556510737bc9b7852c0235186bfb3
humanhash:	nuts-fix-wyoming-emma
File name:	5c5556510737bc9b7852c0235186bfb3.exe
Download:	download sample
Signature	Stealc Create hunting rule
File size:	589'176 bytes
First seen:	2023-10-30 15:10:18 UTC
Last seen:	2023-10-30 16:49:59 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	298cb3d37775391ff8b8cc74cba1548f (15 x Stealc, 1 x MarsStealer)
ssdeep	12288:MS4vdwKTNWuuRYqrggHp/bLf7dajBIlXSY4j+6qj9:aF7M0UJf7g1Ilqjyj9
Threatray	954 similar samples on MalwareBazaar
TLSH	T15FC49E51E2C14D3AC0672A3D5D1BE2AD58247D1226E8D88AAFD47FCC1F352813BF4A97
TrID	38.9% (.SCR) Windows screen saver (13097/50/3) 29.7% (.EXE) DOS Borland compiled Executable (generic) (10000/1/2) 13.3% (.EXE) Win32 Executable (generic) (4505/5/1) 6.0% (.EXE) OS/2 Executable (generic) (2029/13) 5.9% (.EXE) Generic Win/DOS Executable (2002/3)
File icon (PE):
dhash icon	399998ecd4d46c0e (572 x Quakbot, 137 x ArkeiStealer, 82 x GCleaner)
Reporter	abuse_ch
Tags:	exe Stealc

abuse_ch

Stealc C2:
http://bidbur.com/b5c586aec2e1004c.php

Intelligence

File Origin

# of uploads :

# of downloads :

338

Origin country :

Vendor Threat Intelligence

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/457128/

Detection(s):

SecuriteInfo.com.Trojan.DownLoader46.27845.30371.29857.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

Сreating synchronization primitives

Creating a window

Searching for synchronization primitives

Launching the default Windows debugger (dwwin.exe)

Sending a custom TCP request

DNS request

Sending an HTTP GET request

Running batch commands

Creating a process with a hidden window

Launching a process

Gathering data

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

control keylogger lolbin overlay packed replace shell32

Link:

https://www.filescan.io/uploads/653fc78634de31f579ce072a/reports/c9c6701d-15f6-4579-9a11-fc3f0f57e34f/overview

Verdict:

Malicious

Labled as:

Malware

Link:

https://www.hybrid-analysis.com/sample/4ce725a2c6e974d7aa4f05c651e803d40efa218ec2668386ce80e3249c577f03

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/bf76735d-b4b7-48a3-8926-b7ef17fd5586

Result

Threat name:

CryptOne, Stealc, Vidar

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1334336

Signature

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 evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)

Found malware configuration

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

Icon mismatch, binary includes an icon from a different legit application in order to fool users

Malicious sample detected (through community Yara rule)

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

Yara detected CryptOne packer

Yara detected Stealc

Yara detected Vidar stealer

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/4ce725a2c6e974d7aa4f05c651e803d40efa218ec2668386ce80e3249c577f03

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/4ce725a2c6e974d7aa4f05c651e803d40efa218ec2668386ce80e3249c577f03/

Threat name:

Win32.Trojan.Stealc

Status:

Malicious

First seen:

2023-10-30 15:11:04 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

15 of 23 (65.22%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=jttsliwg5f2npkspaxdfd2ad2qhpuimoyjtihbwoqdrsjhcxp4bq._file

Verdict:

malicious

Result

Malware family:

n/a

Score:

8/10

Tags:

discovery spyware stealer

Link:

https://tria.ge/reports/231030-skkswadg8w/

Behaviour

Checks processor information in registry

Delays execution with timeout.exe

Suspicious behavior: EnumeratesProcesses

Suspicious use of UnmapMainImage

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

Unpacked files

SH256 hash:

4ce725a2c6e974d7aa4f05c651e803d40efa218ec2668386ce80e3249c577f03

MD5 hash:

5c5556510737bc9b7852c0235186bfb3

SHA1 hash:

0bc139b633d58bd6a14297e8731d8c449aaf82f7

Link:

https://www.unpac.me/results/e95f3e2b-2991-4d47-b7cf-e1511d2e3491/

Malware family:

Stealc

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/4ce725a2c6e9/report/overview.html

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

Stealc

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/4ce725a2c6e974d7aa4f05c651e803d40efa218ec2668386ce80e3249c577f03

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:	BobSoftMiniDelphiBoBBobSoft Create hunting rule
Author:	malware-lu

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

Rule name:	Check_OutputDebugStringA_iat Create hunting rule

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:	INDICATOR_SUSPICIOUS_Binary_Embedded_Crypto_Wallet_Browser_Extension_IDs Create hunting rule
Author:	ditekSHen
Description:	Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs.

Rule name:	INDICATOR_SUSPICIOUS_Binary_Embedded_MFA_Browser_Extension_IDs Create hunting rule
Author:	ditekSHen
Description:	Detect binaries embedding considerable number of MFA browser extension IDs.

Rule name:	INDICATOR_SUSPICIOUS_Binary_References_Browsers Create hunting rule
Author:	ditekSHen
Description:	Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

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

Rule name:	meth_get_eip Create hunting rule
Author:	Willi Ballenthin

Rule name:	meth_stackstrings Create hunting rule
Author:	Willi Ballenthin

Rule name:	PE_Digital_Certificate Create hunting rule
Author:	albertzsigovits

Rule name:	QbotStuff Create hunting rule
Author:	anonymous

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

Rule name:	Trojan_W32_Gh0stMiancha_1_0_0 Create hunting rule

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

Rule name:	yara_template Create hunting rule

File information

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

Web download

Stealc

exe 4ce725a2c6e974d7aa4f05c651e803d40efa218ec2668386ce80e3249c577f03

(this sample)

URLhaus

https://urlhaus.abuse.ch/url/2723302/

Delivery method

Distributed via web download

Cape

https://www.capesandbox.com/analysis/457128/

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