MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 bf64f0b89179c564e2ccac32d33face7727c828421044c6c132dece09c026aa3. 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 18 File information Comments

SHA256 hash:	bf64f0b89179c564e2ccac32d33face7727c828421044c6c132dece09c026aa3
SHA3-384 hash:	80ae8cad58de90500c16e0249b837da3eefa6a81607b4f6542d356b62d79aa5f4ac0fd19db0fcdf85ae316ba35fb133b
SHA1 hash:	519160fc2c2b822644e37d1ff9e65a869a2c8278
MD5 hash:	e2d45c465fd698e29d05ce3401c01222
humanhash:	ten-blossom-august-ink
File name:	e2d45c465fd698e29d05ce3401c01222.exe
Download:	download sample
Signature	Stealc Create hunting rule
File size:	312'832 bytes
First seen:	2024-04-17 04:55:19 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	15d4342385ed3590f2f3489674cc6c48 (1 x Stealc, 1 x Amadey)
ssdeep	3072:oi3GcRMXNeNhTROfvgPUVfk+rh1qURq+eLR6apNWKELZRdylkvvZqC5fyEQlEN:Pu8h8gsFkORiRRpNLELxylSRqYfys
TLSH	T194647C0272D0A872F57347724E69D6A4763EFC614F7E6B2B23485E2F04B30A5D622772
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	1030c09030381000 (1 x Smoke Loader, 1 x Stealc)
Reporter	abuse_ch
Tags:	exe Stealc

abuse_ch

Stealc C2:
http://185.172.128.23/f993692117a3fda2.php

Intelligence

File Origin

# of uploads :

# of downloads :

334

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

bf64f0b89179c564e2ccac32d33face7727c828421044c6c132dece09c026aa3.exe

Verdict:

Malicious activity

Analysis date:

2024-04-17 04:56:50 UTC

Tags:

stealer stealc loader

Link:

https://app.any.run/tasks/6337f346-6fc8-4b76-9c1b-b78f63d3a6d8

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

Connecting to a non-recommended domain

Connection attempt

Sending an HTTP GET request

Running batch commands

Creating a process with a hidden window

Launching a process

Launching the default Windows debugger (dwwin.exe)

Moving a file to the Program Files subdirectory

Replacing files

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

fingerprint

Link:

https://www.filescan.io/uploads/661f5663b575a100a2304d77/reports/6023549b-6090-40da-8b0f-bf65c9b0b714/overview

Verdict:

Malicious

Labled as:

Malware

Link:

https://www.hybrid-analysis.com/sample/bf64f0b89179c564e2ccac32d33face7727c828421044c6c132dece09c026aa3

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/92c64bb7-f276-42c3-9a94-29d2bef3b12c

Result

Threat name:

Mars Stealer, Stealc, Vidar

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1427165

Signature

Antivirus / Scanner detection for submitted sample

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/bf64f0b89179c564e2ccac32d33face7727c828421044c6c132dece09c026aa3

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/bf64f0b89179c564e2ccac32d33face7727c828421044c6c132dece09c026aa3/

Threat name:

Win32.Trojan.Generic

Status:

Malicious

First seen:

2024-04-17 04:56:05 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

17 of 38 (44.74%)

Threat level:

2/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=x5spboerphcwjywmvqzngp5m45zhzaueeecey3atfxwobhacnkrq._file

Verdict:

malicious

Result

Malware family:

stealc

Score:

10/10

Tags:

family:stealc discovery spyware stealer

Link:

https://tria.ge/reports/240417-fkn43sfh2s/

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://185.172.128.23

Unpacked files

SH256 hash:

408102606329d7411ef7bb3c01b6d54e5fbe10fe567e1672ff071443f87455dd

MD5 hash:

1fdb69030294c6a0e6d95e2b986ac393

SHA1 hash:

00a499ae4b6237f376986097a3f29f58ae72a6d6

Detections:

stealc

win_stealc_auto

Link:

https://www.unpac.me/results/bdb255ba-eb3d-44ad-a5cf-018abae4a5e1/

Parent samples :

bf64f0b89179c564e2ccac32d33face7727c828421044c6c132dece09c026aa3
b30838c7d4ae48e0bd2b530eb63ac920048f044d9ff59766889f753989cce382
1fc72c18b636e240637025cb7bf63a10c06d748f0638d17b3746d6ec3ffeac23
ae33e5e830eb9997198b78b50e593332307145000af1a287a7ad7391b81e60e6
f00f1ab406a347742ab2f7bc17cfe46111a4d64cee105cfd7ccf14986ed67886
6fe192fbca5a63363c6e7e438976579517ba732be8fb3e388717d9875c17389c
9d5903667ad215ac4efb3346c2179ac6bf5ca7fa3a9efcb6ceec6c53421434b4
e61a1c0e47f6e5606ae0df9b2e8b41d26e2cc4b7d8a77c67032bcd0ad32b4d5c
ee7217ad15c2331e7823adc7a9af7d647c412fb2df03ca7a1caeb9432c9ce2f7
a56642e3313d37349be83eccecbf6b4d41c3b8aaaa1c19d637add3234c68c182
ca3cb9514c8544017cef8e68c76d4abbb7028019d2db0c4ac4d88c29700743dc
6990b050ea013f9b45df9fc7b3db7e1e6e25631de7761e1f7f2f72501535af50

SH256 hash:

bf64f0b89179c564e2ccac32d33face7727c828421044c6c132dece09c026aa3

MD5 hash:

e2d45c465fd698e29d05ce3401c01222

SHA1 hash:

519160fc2c2b822644e37d1ff9e65a869a2c8278

Link:

https://www.unpac.me/results/bdb255ba-eb3d-44ad-a5cf-018abae4a5e1/

Malware family:

Stealc

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/bf64f0b89179/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/bf64f0b89179c564e2ccac32d33face7727c828421044c6c132dece09c026aa3

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:	DebuggerHiding__Active 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:	EXE_Stealer_StealC_Feb2024 Create hunting rule
Author:	Yashraj Solanki - Cyber Threat Intelligence Analyst at Bridewell

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 bf64f0b89179c564e2ccac32d33face7727c828421044c6c132dece09c026aa3

(this sample)

URLhaus

https://urlhaus.abuse.ch/url/2793509/

Delivery method

Distributed via web download

URLhaus

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

URLhaus

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

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 KERNEL32.dll::CreateThread
WIN_BASE_API	Uses Win Base API	KERNEL32.dll::TerminateProcess KERNEL32.dll::FindNextVolumeW KERNEL32.dll::LoadLibraryW KERNEL32.dll::LoadLibraryA KERNEL32.dll::LoadLibraryExW KERNEL32.dll::GetVolumeInformationW
WIN_BASE_EXEC_API	Can Execute other programs	KERNEL32.dll::AddConsoleAliasW KERNEL32.dll::WriteConsoleInputW KERNEL32.dll::WriteConsoleW KERNEL32.dll::ReadConsoleInputA KERNEL32.dll::SetStdHandle KERNEL32.dll::GetConsoleCP KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_API	Can Create Files	KERNEL32.dll::CopyFileA KERNEL32.dll::CreateHardLinkW KERNEL32.dll::CreateFileW KERNEL32.dll::GetWindowsDirectoryA KERNEL32.dll::RemoveDirectoryW
WIN_HTTP_API	Uses HTTP services	WINHTTP.dll::WinHttpReadData

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