MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1d4923625c054327eb063bc0dfc74578ff43847e9d57d3332664326b264b12cf. 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 16 File information Comments

SHA256 hash:	1d4923625c054327eb063bc0dfc74578ff43847e9d57d3332664326b264b12cf
SHA3-384 hash:	7412235da28cc2d0701962e85a0c05e37621bc72f90794b89bea82fe96881a809c88b74723fd11bd042502c0355c6374
SHA1 hash:	ba028965fb79b894ab0b65a563805768d229825a
MD5 hash:	2b4753b31c97e20e1b05248a072777a8
humanhash:	cola-diet-juliet-papa
File name:	2b4753b31c97e20e1b05248a072777a8.exe
Download:	download sample
Signature	Stealc Create hunting rule
File size:	252'416 bytes
First seen:	2024-04-07 02:25:24 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	fc6d7c79f5e4d8e4cda8e0f4b7bf6458 (1 x Stealc)
ssdeep	3072:BW9dnF3MZ+55A1Xrb8xIaHYorTGp14UyDxQuKwZQ:kfnF3o+5qAploKxQ
TLSH	T10734AE11A6A484F2FFA647395935C6910D6B7C226FB790CF36AC3A2F5EB31D04924327
TrID	37.3% (.EXE) Win64 Executable (generic) (10523/12/4) 17.8% (.EXE) Win16 NE executable (generic) (5038/12/1) 15.9% (.EXE) Win32 Executable (generic) (4504/4/1) 7.3% (.ICL) Windows Icons Library (generic) (2059/9) 7.2% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):
dhash icon	5bb27e626a32530a (4 x Stealc)
Reporter	abuse_ch
Tags:	exe Stealc

abuse_ch

Stealc C2:
http://62.113.119.199/c9cac53e5e9ec7ba.php

Intelligence

File Origin

# of uploads :

# of downloads :

298

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

1d4923625c054327eb063bc0dfc74578ff43847e9d57d3332664326b264b12cf.exe

Verdict:

Malicious activity

Analysis date:

2024-04-07 02:27:59 UTC

Tags:

stealer stealc loader

Link:

https://app.any.run/tasks/8f531fca-0825-42e0-8238-4dd3a979014a

Note:

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

Result

Verdict:

Malware

Maliciousness:

Behaviour

Сreating synchronization primitives

Connection attempt

Sending an HTTP GET request

Running batch commands

Creating a process with a hidden window

Launching the default Windows debugger (dwwin.exe)

Launching a process

Searching for the window

Verdict:

Suspicious

Threat level:

5/10

Confidence:

100%

Tags:

fingerprint

Link:

https://www.filescan.io/uploads/6612431435699b4745bf325f/reports/4d3af691-e506-4dff-ba7c-bcf3770463c2/overview

Verdict:

Malicious

Labled as:

Malware

Link:

https://www.hybrid-analysis.com/sample/1d4923625c054327eb063bc0dfc74578ff43847e9d57d3332664326b264b12cf

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/ac15e0e8-1ee6-436c-a03a-40e13dd82da4

Result

Threat name:

Mars Stealer, Stealc, Vidar

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1421465

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)

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/1d4923625c054327eb063bc0dfc74578ff43847e9d57d3332664326b264b12cf

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/1d4923625c054327eb063bc0dfc74578ff43847e9d57d3332664326b264b12cf/

Threat name:

Win32.Trojan.CrypterX

Status:

Malicious

First seen:

2024-04-07 01:14:40 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

13 of 24 (54.17%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=dvesgys4avbsp2yghpan7r2fpd7uhbd6tvl5gmzgmqzgwjslclhq._file

Verdict:

malicious

Result

Malware family:

stealc

Score:

10/10

Tags:

family:stealc discovery spyware stealer

Link:

https://tria.ge/reports/240407-cwvt8abb69/

Behaviour

Checks processor information in registry

Suspicious behavior: EnumeratesProcesses

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://62.113.119.199

Unpacked files

SH256 hash:

47794d68bd4008e7d66e3b8c80f04f825d34664498ad025d647b4e27f4a55bb1

MD5 hash:

5c68421fc7b2bdfc2bcf5401453609fc

SHA1 hash:

6c1ee3bcbff6e2e8e0ba46faff5c32e0c164b656

Detections:

stealc

win_stealc_auto

Link:

https://www.unpac.me/results/0cc6af3e-663c-412c-a388-679069d59908/

SH256 hash:

1d4923625c054327eb063bc0dfc74578ff43847e9d57d3332664326b264b12cf

MD5 hash:

2b4753b31c97e20e1b05248a072777a8

SHA1 hash:

ba028965fb79b894ab0b65a563805768d229825a

Link:

https://www.unpac.me/results/0cc6af3e-663c-412c-a388-679069d59908/

Malware family:

Stealc

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/1d4923625c05/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/1d4923625c054327eb063bc0dfc74578ff43847e9d57d3332664326b264b12cf

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:	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 1d4923625c054327eb063bc0dfc74578ff43847e9d57d3332664326b264b12cf

(this sample)

URLhaus

https://urlhaus.abuse.ch/url/2802981/

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::LoadLibraryW KERNEL32.dll::LoadLibraryA KERNEL32.dll::GetStartupInfoW KERNEL32.dll::GetCommandLineA
WIN_BASE_EXEC_API	Can Execute other programs	KERNEL32.dll::WriteConsoleOutputA KERNEL32.dll::WriteConsoleW KERNEL32.dll::SetConsoleTitleA KERNEL32.dll::SetStdHandle KERNEL32.dll::GetConsoleAliasesLengthW KERNEL32.dll::GetConsoleCP KERNEL32.dll::GetConsoleAliasExesLengthW KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_API	Can Create Files	KERNEL32.dll::CreateFileW
WIN_BASE_USER_API	Retrieves Account Information	KERNEL32.dll::GetComputerNameA
WIN_REG_API	Can Manipulate Windows Registry	ADVAPI32.dll::RegCreateKeyA

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