MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b927e42b91a9d16139e8e8dc56b6550590d55a0a0a7ea7614a77ec800f5cb435. 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 5 File information Comments 1

SHA256 hash:	b927e42b91a9d16139e8e8dc56b6550590d55a0a0a7ea7614a77ec800f5cb435
SHA3-384 hash:	f8fd93f3791573afe9bae06adfe55007beb30d38aa7dcba806bc7bfc601afcd96f731e4eeb1423ff08a6d0aecb2a35e2
SHA1 hash:	c90515d6b4621f976e18934d3a9cd6be6999613f
MD5 hash:	60f32465f2f1eef8d2a246e71f92497c
humanhash:	tango-golf-oregon-march
File name:	60f32465f2f1eef8d2a246e71f92497c
Download:	download sample
Signature	Stealc Create hunting rule
File size:	254'240 bytes
First seen:	2024-05-11 12:32:23 UTC
Last seen:	2024-05-11 13:28:46 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	7aacbffeaaddbccaf0827a1c7ec218b2 (2 x Vidar, 2 x RedLineStealer, 2 x LummaStealer)
ssdeep	6144:t9D7v5zE9dnXgzGX1U11XXSved2HbAeZxnmC54ID23QDesp+:t57+91m1XivZAOx1DChsp+
TLSH	T1F144F115BBD09471D97719390C70DAA69A3DF9305F61AEAF3358023A0F657C24F309BA
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)
Reporter	zbetcheckin
Tags:	32 exe Stealc

Intelligence

File Origin

# of uploads :

# of downloads :

347

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

b927e42b91a9d16139e8e8dc56b6550590d55a0a0a7ea7614a77ec800f5cb435.exe

Verdict:

Malicious activity

Analysis date:

2024-05-11 12:35:21 UTC

Tags:

stealer stealc

Link:

https://app.any.run/tasks/b377a6fc-5104-4f98-8a4e-4e29aac3d239

Note:

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

Detection(s):

SecuriteInfo.com.Trojan.PWS.RedLineNET.9.178.14969.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Running batch commands

Creating a process with a hidden window

Searching for the window

Launching a process

Сreating synchronization primitives

Connection attempt

Sending an HTTP GET request

Unauthorized injection to a system process

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

overlay packed

Link:

https://www.filescan.io/uploads/663f6581148f01a7073f4f26/reports/ca10d1c5-8d6e-4645-92f5-927bbcbaf2c5/overview

Verdict:

Malicious

Labled as:

Win/malicious_confidence_100%

Link:

https://www.hybrid-analysis.com/sample/b927e42b91a9d16139e8e8dc56b6550590d55a0a0a7ea7614a77ec800f5cb435

Verdict:

Suspicious

Link:

https://analyze.intezer.com/analyses/bec93937-d4c2-4701-910b-f3518b5229fb

Result

Threat name:

Mars Stealer, PrivateLoader, Stealc, Vid

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1440007

Signature

Allocates memory in foreign processes

Antivirus / Scanner detection for submitted sample

Antivirus detection for URL or domain

C2 URLs / IPs found in malware configuration

Contains functionality to inject code into remote processes

Detected potential unwanted application

Found evasive API chain (may stop execution after checking locale)

Found malware configuration

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

Injects a PE file into a foreign processes

Machine Learning detection for sample

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)

Writes to foreign memory regions

Yara detected Mars stealer

Yara detected PrivateLoader

Yara detected Stealc

Yara detected Vidar stealer

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/b927e42b91a9d16139e8e8dc56b6550590d55a0a0a7ea7614a77ec800f5cb435

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/b927e42b91a9d16139e8e8dc56b6550590d55a0a0a7ea7614a77ec800f5cb435/

Threat name:

Win32.Trojan.Smokeloader

Status:

Malicious

First seen:

2024-05-11 12:33:06 UTC

File Type:

PE (Exe)

AV detection:

21 of 24 (87.50%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=xet6ik4rvhiwcopi5dofnnsvawinkwqkbj7koykko7wiad24wq2q._file

Verdict:

malicious

Result

Malware family:

stealc

Score:

10/10

Tags:

family:stealc discovery spyware stealer

Link:

https://tria.ge/reports/240511-pq62hsba54/

Behaviour

Checks processor information in registry

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Program crash

Suspicious use of SetThreadContext

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://49.13.229.86

Unpacked files

SH256 hash:

78da04fa1a87e2a17e48ff48e0ddece5b6c343d44a2db7342827550881f6f644

MD5 hash:

2ee7bb1bcb0ade7bc3a81e550cb8d9d3

SHA1 hash:

e3da154c33a6436365320b69f34e19729bc35948

Detections:

stealc

win_stealc_auto

Link:

https://www.unpac.me/results/d1be664e-a8f2-4b62-8f1e-318c0d41a294/

SH256 hash:

b927e42b91a9d16139e8e8dc56b6550590d55a0a0a7ea7614a77ec800f5cb435

MD5 hash:

60f32465f2f1eef8d2a246e71f92497c

SHA1 hash:

c90515d6b4621f976e18934d3a9cd6be6999613f

Link:

https://www.unpac.me/results/d1be664e-a8f2-4b62-8f1e-318c0d41a294/

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/b927e42b91a9/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/b927e42b91a9d16139e8e8dc56b6550590d55a0a0a7ea7614a77ec800f5cb435

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:	cobalt_strike_tmp01925d3f Create hunting rule
Author:	The DFIR Report
Description:	files - file ~tmp01925d3f.exe
Reference:	https://thedfirreport.com

Rule name:	DebuggerCheck__API Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

Rule name:	maldoc_find_kernel32_base_method_1 Create hunting rule
Author:	Didier Stevens (https://DidierStevens.com)

Rule name:	PE_Digital_Certificate Create hunting rule
Author:	albertzsigovits

Rule name:	PE_Potentially_Signed_Digital_Certificate Create hunting rule
Author:	albertzsigovits

File information

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

Web download

Stealc

exe b927e42b91a9d16139e8e8dc56b6550590d55a0a0a7ea7614a77ec800f5cb435

(this sample)

Delivery method

Distributed via web download

URLhaus

https://urlhaus.abuse.ch/url/2846688/

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

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::LoadLibraryExW KERNEL32.dll::GetStartupInfoW KERNEL32.dll::GetCommandLineA KERNEL32.dll::GetCommandLineW
WIN_BASE_EXEC_API	Can Execute other programs	KERNEL32.dll::WriteConsoleW KERNEL32.dll::FreeConsole KERNEL32.dll::SetStdHandle KERNEL32.dll::GetConsoleOutputCP KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_API	Can Create Files	KERNEL32.dll::CreateFileW

Comments

Login required

You need to login to in order to write a comment. Login with your abuse.ch account.

zbet commented on 2024-05-11 12:32:24 UTC

url : hxxps://transfer.adttemp.com.br/get/Tm5dZ/6699.exe