MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 1241aa835ecac8a2d31c40436a38f757a5a213b790684edb42ee1235b46a9749. 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: 15

Intelligence 15 IOCs YARA 9 File information Comments

SHA256 hash:	1241aa835ecac8a2d31c40436a38f757a5a213b790684edb42ee1235b46a9749
SHA3-384 hash:	414a9843fd55ece01e1458fc1695eeaef5f207062d389da6088d0d2e87dcaa7f59df9758914771e31c0cded31fcc8a15
SHA1 hash:	4e2d2fe038c127dd0b860b399d82ae3514275c33
MD5 hash:	542fd7184c6813b14a26806fe2d2120d
humanhash:	mars-emma-solar-minnesota
File name:	542fd7184c6813b14a26806fe2d2120d.exe
Download:	download sample
Signature	Stealc Create hunting rule
File size:	260'096 bytes
First seen:	2023-11-27 06:25:29 UTC
Last seen:	2023-11-27 08:55:20 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	67b36560c6c887a02495ee27b7449465 (4 x Stealc, 4 x Smoke Loader, 1 x Vidar)
ssdeep	3072:NwURWuvKv9dwIRpyd+sw5WAh0nB9Za7QtxBUA6uw1pRgrY:Cuk9uMpO+FxITZ4exuA6hps
TLSH	T16F449E2363E1A831F5234A318E2AC6F56A6FF8604F556ADF13645AEF0D703E1C6B6305
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) (4505/5/1)
File icon (PE):
dhash icon	0090a42444425415 (1 x Stealc)
Reporter	abuse_ch
Tags:	exe Stealc

abuse_ch

Stealc C2:
http://florianhabeler.icu/3886d2276f6914c4.php

Intelligence

File Origin

# of uploads :

# of downloads :

323

Origin country :

Vendor Threat Intelligence

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/460511/

Detection(s):

SecuriteInfo.com.Win32.PWSX-gen.17210.11975.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

Сreating synchronization primitives

DNS request

Sending an HTTP GET request

Creating a file

Reading critical registry keys

Creating a window

Running batch commands

Creating a process with a hidden window

Launching a process

Launching the default Windows debugger (dwwin.exe)

Stealing user critical data

Gathering data

Verdict:

Suspicious

Threat level:

5/10

Confidence:

100%

Tags:

control greyware lolbin packed

Link:

https://www.filescan.io/uploads/6564367b2efa450749a861b1/reports/e1b20003-b8d8-4ad2-96d9-1f5a07b16963/overview

Verdict:

Malicious

Labled as:

Malware

Link:

https://www.hybrid-analysis.com/sample/1241aa835ecac8a2d31c40436a38f757a5a213b790684edb42ee1235b46a9749

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/c337191d-afcf-4a0c-8ba6-abf1daf13a71

Result

Threat name:

Stealc, Vidar

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1348276

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 evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)

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 domain / URL

Multi AV Scanner detection for submitted file

Sample uses string decryption to hide its real strings

Snort IDS alert for network traffic

Tries to harvest and steal browser information (history, passwords, etc)

Tries to steal Crypto Currency Wallets

Tries to steal Mail credentials (via file / registry access)

Yara detected Stealc

Yara detected Vidar stealer

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/1241aa835ecac8a2d31c40436a38f757a5a213b790684edb42ee1235b46a9749

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/1241aa835ecac8a2d31c40436a38f757a5a213b790684edb42ee1235b46a9749/

Threat name:

Win32.Ransomware.StopCrypt

Status:

Malicious

First seen:

2023-11-27 06:26:05 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

17 of 23 (73.91%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=cja2va26zlekfuy4ibbwuohxk6s2ee5xsbue5w2c5yjdlndks5eq._file

Verdict:

malicious

Result

Malware family:

stealc

Score:

10/10

Tags:

family:stealc discovery spyware stealer

Link:

https://tria.ge/reports/231127-g663fseg4s/

Behaviour

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Checks processor information in registry

Delays execution with timeout.exe

Enumerates physical storage devices

Program crash

Accesses cryptocurrency files/wallets, possible credential harvesting

Checks installed software on the system

Checks computer location settings

Deletes itself

Loads dropped DLL

Reads user/profile data of web browsers

Downloads MZ/PE file

Stealc

Malware Config

C2 Extraction:

http://florianhabeler.icu

Unpacked files

SH256 hash:

172bd2c26ed2836f7844d0a8d85691a4bce0a077b6f6ed786ceb42bd3a41ed98

MD5 hash:

bcc8b43b908614d087373eb9c53669a3

SHA1 hash:

4c335c78b004d749ac6e8990364988d3d6e116ca

Detections:

stealc

win_stealc_a0

win_stealc_bytecodes_oct_2023

Link:

https://www.unpac.me/results/615cc4ff-1564-4957-b7fc-e08d76135b31/

Parent samples :
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SH256 hash:

1241aa835ecac8a2d31c40436a38f757a5a213b790684edb42ee1235b46a9749

MD5 hash:

542fd7184c6813b14a26806fe2d2120d

SHA1 hash:

4e2d2fe038c127dd0b860b399d82ae3514275c33

Link:

https://www.unpac.me/results/615cc4ff-1564-4957-b7fc-e08d76135b31/

Malware family:

Stealc

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/1241aa835eca/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/1241aa835ecac8a2d31c40436a38f757a5a213b790684edb42ee1235b46a9749

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:	Trojan_W32_Gh0stMiancha_1_0_0 Create hunting rule

Rule name:	Windows_Trojan_Smokeloader_3687686f Create hunting rule
Author:	Elastic Security

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/