MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b7dee59b78126ab03b18c571b7045e2c6b146062270463d150cbe82ad86f2947. 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: 16

Intelligence 16 IOCs YARA 17 File information Comments

SHA256 hash:	b7dee59b78126ab03b18c571b7045e2c6b146062270463d150cbe82ad86f2947
SHA3-384 hash:	3b9906458bdb58f1414254cc37eabaecda37934611d80d5bdace8e0ca19060f59ab0b774542a54a8d861785910305616
SHA1 hash:	baa84500caf3d32d99fea3e34c7f1d4ccecbf0a3
MD5 hash:	60de9c3b301760961bf1664166ef0899
humanhash:	oregon-green-vermont-magnesium
File name:	b7dee59b78126ab03b18c571b7045e2c6b14606227046.exe
Download:	download sample
Signature	Stealc Create hunting rule
File size:	208'384 bytes
First seen:	2024-04-27 22:20:12 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	2f726f40370b375fa05d60fc38904442 (12 x Stealc, 1 x Arechclient2)
ssdeep	3072:P3w5UJlGMHmApaf6MCTQOjenfCvV3WX7n1PD52Rb6ORB:P3w5U3psfMTQ8xvVGX7n1PYl6OR
TLSH	T11314BE1036E1C472D9BB58737B65C6A1AA3B78731BB5818772542FAD0E302D15F3A363
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	64d29a9889a99981 (1 x AsyncRAT, 1 x Stealc)
Reporter	abuse_ch
Tags:	exe Stealc

abuse_ch

Stealc C2:
http://185.172.128.76/8681490a59ad0e34.php

Intelligence

File Origin

# of uploads :

# of downloads :

327

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

4b05ccc0559802176482ef748aa2864d7650ee6da2e6563c2118c14e0cb8c34a.exe

Verdict:

Malicious activity

Analysis date:

2024-04-27 22:11:23 UTC

Tags:

loader stealer stealc hijackloader arechclient2 backdoor

Link:

https://app.any.run/tasks/b2cf86b9-e7de-46d8-ab46-0483e76f941b

Note:

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

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

Сreating synchronization primitives

Running batch commands

Creating a process with a hidden window

Launching a process

Launching the default Windows debugger (dwwin.exe)

Connection attempt to an infection source

Sending an HTTP GET request to an infection source

Verdict:

No Threat

Threat level:

10/10

Confidence:

100%

Tags:

fingerprint

Link:

https://www.filescan.io/uploads/662d7a4f51edb67852f9fda2/reports/3f35a984-e6c3-4e1c-932d-fcfb63c8971d/overview

Verdict:

Malicious

Labled as:

Malware

Link:

https://www.hybrid-analysis.com/sample/b7dee59b78126ab03b18c571b7045e2c6b146062270463d150cbe82ad86f2947

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/99e0f329-2181-4b5f-ac92-38d17719b9f9

Result

Threat name:

Mars Stealer, Stealc, Vidar

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1432699

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 malware configuration

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

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

Searches for specific processes (likely to inject)

Snort IDS alert for network traffic

Tries to harvest and steal Bitcoin Wallet information

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 Mars stealer

Yara detected Stealc

Yara detected Vidar stealer

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/b7dee59b78126ab03b18c571b7045e2c6b146062270463d150cbe82ad86f2947

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/b7dee59b78126ab03b18c571b7045e2c6b146062270463d150cbe82ad86f2947/

Threat name:

Win32.Spyware.Stealc

Status:

Malicious

First seen:

2024-04-27 22:21:05 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

17 of 23 (73.91%)

Threat level:

2/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=w7polg3ycjvlaoyyyvy3obc6frvriydce4cghukqzpucvwdpffdq._file

Verdict:

malicious

Result

Malware family:

stealc

Score:

10/10

Tags:

family:stealc discovery spyware stealer

Link:

https://tria.ge/reports/240427-19myjahg76/

Behaviour

Checks processor information in registry

Suspicious behavior: EnumeratesProcesses

Enumerates physical storage devices

Program crash

Accesses cryptocurrency files/wallets, possible credential harvesting

Checks installed software on the system

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://185.172.128.76

Unpacked files

SH256 hash:

5d0240865ac729989411c28e72427f89c4e028eb1e95d85cf2db69e8c119f5ad

MD5 hash:

786fe26c903d1e534e647a42342574c9

SHA1 hash:

aa8754524d05c1d76138b70be29889cce2f5e2d5

Detections:

stealc

win_stealc_auto

Link:

https://www.unpac.me/results/58eb5cfe-c671-4c43-91b3-d7a1db568d84/

Parent samples :
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SH256 hash:

b7dee59b78126ab03b18c571b7045e2c6b146062270463d150cbe82ad86f2947

MD5 hash:

60de9c3b301760961bf1664166ef0899

SHA1 hash:

baa84500caf3d32d99fea3e34c7f1d4ccecbf0a3

Link:

https://www.unpac.me/results/58eb5cfe-c671-4c43-91b3-d7a1db568d84/

Malware family:

Stealc

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/b7dee59b7812/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/b7dee59b78126ab03b18c571b7045e2c6b146062270463d150cbe82ad86f2947

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:	Check_OutputDebugStringA_iat Create hunting rule

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:	DebuggerException__SetConsoleCtrl 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:	malware_Stealc_str Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	Stealc infostealer

Rule name:	Windows_Trojan_Generic_2993e5a5 Create hunting rule
Author:	Elastic Security

Rule name:	Windows_Trojan_Stealc_b8ab9ab5 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/

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 b7dee59b78126ab03b18c571b7045e2c6b146062270463d150cbe82ad86f2947

(this sample)

URLhaus

https://urlhaus.abuse.ch/url/2754939/

Delivery method

Distributed via web download

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings

ID	Title	Severity
CHECK_AUTHENTICODE	Missing Authenticode	high
CHECK_DLL_CHARACTERISTICS	Missing dll Security Characteristics (HIGH_ENTROPY_VA)	high
CHECK_NX	Missing Non-Executable Memory Protection	critical
CHECK_PIE	Missing Position-Independent Executable (PIE) Protection	high

Reviews

ID	Capabilities	Evidence
WIN32_PROCESS_API	Can Create Process and Threads	KERNEL32.dll::CloseHandle
WIN_BASE_API	Uses Win Base API	KERNEL32.dll::TerminateProcess KERNEL32.dll::SetFirmwareEnvironmentVariableA KERNEL32.dll::LoadLibraryA KERNEL32.dll::GetVolumeInformationA KERNEL32.dll::GetStartupInfoA KERNEL32.dll::GetCommandLineA
WIN_BASE_EXEC_API	Can Execute other programs	KERNEL32.dll::WriteConsoleA KERNEL32.dll::WriteConsoleW KERNEL32.dll::ReadConsoleW KERNEL32.dll::ScrollConsoleScreenBufferA KERNEL32.dll::SetConsoleCtrlHandler KERNEL32.dll::SetConsoleDisplayMode
WIN_BASE_IO_API	Can Create Files	KERNEL32.dll::CreateFileA

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