MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 aa8284b2178aaf3f501da1e4c1485ba01c72d70466e8026ff425771168ef5982. 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 10 File information Comments

SHA256 hash:	aa8284b2178aaf3f501da1e4c1485ba01c72d70466e8026ff425771168ef5982
SHA3-384 hash:	1e8c45a877b022bd3550849ca3f46c03a04b48a0ff5e7f1a76c246ea951065e4a29e08cf15559af42f5debe3f9d555c1
SHA1 hash:	9cc2c0926d659aaf00eff68be3c6cccc9f14e364
MD5 hash:	3e60f960ca78e34a5a223279c54df092
humanhash:	beer-lion-hot-venus
File name:	3e60f960ca78e34a5a223279c54df092.exe
Download:	download sample
Signature	Stealc Create hunting rule
File size:	226'304 bytes
First seen:	2024-05-16 23:55:22 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	444745deb8123b58a319fee2a966af19 (2 x Stealc, 1 x GCleaner)
ssdeep	3072:P1PHcIR8yJV1bnEoV+o37K/YsY0OKA++A8/CQZ84yG/4BTZV4M28qwtBCF:Pl1TVVrnQk+P8fi9BTrz+w
TLSH	T15824CF0136E1C471E5B742714A7D8ED03A7FFC729E35AD5F3388220E68712E09A66B63
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) (4504/4/1)
File icon (PE):
dhash icon	00000c0634504041 (1 x Stealc)
Reporter	abuse_ch
Tags:	exe Stealc

abuse_ch

Stealc C2:
http://185.172.128.170/7043a0c6a68d9c65.php

Intelligence

File Origin

# of uploads :

# of downloads :

414

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

aa8284b2178aaf3f501da1e4c1485ba01c72d70466e8026ff425771168ef5982.exe

Verdict:

Malicious activity

Analysis date:

2024-05-16 23:56:05 UTC

Tags:

stealer stealc

Link:

https://app.any.run/tasks/44c03dd0-130f-4062-8413-65b84f6970c6

Note:

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

Detection(s):

Win.Packer.pkr_ce1a-9980177-0

Gathering data

Result

Verdict:

Malware

Maliciousness:

Behaviour

Сreating synchronization primitives

Running batch commands

Creating a process with a hidden window

Launching a process

Launching the default Windows debugger (dwwin.exe)

Searching for the window

Connection attempt to an infection source

Sending an HTTP GET request to an infection source

Verdict:

Suspicious

Threat level:

5/10

Confidence:

100%

Tags:

packed

Link:

https://www.filescan.io/uploads/66469d137c9fb1468fc534cd/reports/75b6743f-fa6d-42dc-b1d7-a89994b02390/overview

Verdict:

Malicious

Labled as:

Malware

Link:

https://www.hybrid-analysis.com/sample/aa8284b2178aaf3f501da1e4c1485ba01c72d70466e8026ff425771168ef5982

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/7860c1fb-0744-477e-9ab7-c077f2c6deee

Result

Threat name:

Mars Stealer, Stealc, Vidar

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1443057

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 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/aa8284b2178aaf3f501da1e4c1485ba01c72d70466e8026ff425771168ef5982

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/aa8284b2178aaf3f501da1e4c1485ba01c72d70466e8026ff425771168ef5982/

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=vkbijmqxrkxt6ua5uhsmcsc3uaohfvyem3uae37uev3rc2hplgba._file

Result

Malware family:

stealc

Score:

10/10

Tags:

family:stealc botnet:default11 discovery spyware stealer

Link:

https://tria.ge/reports/240516-3yz5tsfd6x/

Behaviour

Checks processor information in registry

Suspicious behavior: EnumeratesProcesses

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://185.172.128.170

Unpacked files

SH256 hash:

d7bd4d8c80bfcb360fd15068a03b517ced29f1a0c9584ec5e723ee6334655740

MD5 hash:

876dfac59314944983ba36b6fb43c827

SHA1 hash:

df74b41d8dcdb0fa19b76bab18bbf71621e76188

Detections:

stealc

win_stealc_auto

Link:

https://www.unpac.me/results/238f3166-e880-4bd8-ae3e-dd769a5f2c5d/

Parent samples :
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SH256 hash:

aa8284b2178aaf3f501da1e4c1485ba01c72d70466e8026ff425771168ef5982

MD5 hash:

3e60f960ca78e34a5a223279c54df092

SHA1 hash:

9cc2c0926d659aaf00eff68be3c6cccc9f14e364

Link:

https://www.unpac.me/results/238f3166-e880-4bd8-ae3e-dd769a5f2c5d/

Malware family:

Stealc

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/aa8284b2178a/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/aa8284b2178aaf3f501da1e4c1485ba01c72d70466e8026ff425771168ef5982

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:	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:	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/

File information

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

Web download

Stealc

exe aa8284b2178aaf3f501da1e4c1485ba01c72d70466e8026ff425771168ef5982

(this sample)

URLhaus

https://urlhaus.abuse.ch/url/2810818/

Delivery method

Distributed via web download

URLhaus

https://urlhaus.abuse.ch/url/2852104/

URLhaus

https://urlhaus.abuse.ch/url/2812849/

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_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::LoadLibraryExW KERNEL32.dll::LoadLibraryA KERNEL32.dll::GetVolumeInformationW KERNEL32.dll::GetStartupInfoW KERNEL32.dll::GetCommandLineW
WIN_BASE_EXEC_API	Can Execute other programs	KERNEL32.dll::WriteConsoleW KERNEL32.dll::ReadConsoleW KERNEL32.dll::SetStdHandle KERNEL32.dll::GetConsoleAliasA KERNEL32.dll::GetConsoleCP KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_API	Can Create Files	KERNEL32.dll::CreateFileW KERNEL32.dll::GetSystemDirectoryW KERNEL32.dll::RemoveDirectoryW
WIN_BASE_USER_API	Retrieves Account Information	KERNEL32.dll::GetComputerNameA

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