MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 66c97b3eb38c117b3d12e4565208c7770d6fe6f6f27cc7ece301de201cd8332f. 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

MarsStealer

Vendor detections: 13

Intelligence 13 IOCs YARA 1 File information Comments

SHA256 hash:	66c97b3eb38c117b3d12e4565208c7770d6fe6f6f27cc7ece301de201cd8332f
SHA3-384 hash:	36e525cc4a75c9fc497332fd53eff035e64a2321002638e64d2001951a9e0185d29387bff8b8a826da87e0d1df9ead58
SHA1 hash:	dca352d76830c9485f8525e56d79d92775ac6e13
MD5 hash:	f7b370ed882a5055e32f2ef666b25499
humanhash:	salami-lemon-sweet-shade
File name:	file
Download:	download sample
Signature	MarsStealer Create hunting rule
File size:	1'902'080 bytes
First seen:	2024-10-08 20:30:19 UTC
Last seen:	2024-10-08 21:21:45 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	2eabe9054cad5152567f0699947a2c5b (2'852 x LummaStealer, 1'312 x Stealc, 1'026 x Healer)
ssdeep	49152:fqfKU9arCsPnuahYTtUk13uYcWVKGNc5IzN:fqiU9whPYUk1+MYGNc5Iz
TLSH	T10F9533746AAA6DFEDBDC8770CBCB8AC1392092819D377DE47101233D25EEF609694D42
TrID	27.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 20.8% (.EXE) Win16 NE executable (generic) (5038/12/1) 18.6% (.EXE) Win32 Executable (generic) (4504/4/1) 8.5% (.ICL) Windows Icons Library (generic) (2059/9) 8.3% (.EXE) OS/2 Executable (generic) (2029/13)
Magika	pebin
Reporter	Bitsight
Tags:	exe MarsStealer

Bitsight

url: http://185.215.113.103/steam/random.exe

Intelligence

File Origin

# of uploads :

# of downloads :

395

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

file

Verdict:

Malicious activity

Analysis date:

2024-10-08 20:33:34 UTC

Tags:

lumma stealer opendir loader themida stealc

Link:

https://app.any.run/tasks/99db5020-7be9-45c1-b11e-4fd98be33e8d

Note:

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

Detection(s):

SecuriteInfo.com.Win32.TrojanX-gen.8541.12914.UNOFFICIAL

Verdict:

Malicious

Score:

91.7%

Link:

https://cyber-fortress.com/docs/result/index.php?id=67065462f936b5621b0bbbb6

Tags:

Vmdetect Spam

Verdict:

Malicious

Labled as:

Trojan.Generic

Link:

https://www.hybrid-analysis.com/sample/66c97b3eb38c117b3d12e4565208c7770d6fe6f6f27cc7ece301de201cd8332f

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.

Verdict:

Unknown

Link:

https://analyze.intezer.com/analyses/0bef4f9d-9bd4-457a-8983-057c97d8099e

Result

Threat name:

Stealc, Vidar

Detection:

malicious

Classification:

troj.spyw.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1529359

Signature

AI detected suspicious sample

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)

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

Found malware configuration

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

Hides threads from debuggers

Machine Learning detection for sample

Multi AV Scanner detection for submitted file

PE file contains section with special chars

Searches for specific processes (likely to inject)

Suricata IDS alerts for network traffic

Tries to detect process monitoring tools (Task Manager, Process Explorer etc.)

Tries to detect sandboxes / dynamic malware analysis system (registry check)

Tries to detect sandboxes and other dynamic analysis tools (window names)

Tries to detect virtualization through RDTSC time measurements

Tries to evade debugger and weak emulator (self modifying code)

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 Powershell download and execute

Yara detected Stealc

Yara detected Vidar stealer

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/66c97b3eb38c117b3d12e4565208c7770d6fe6f6f27cc7ece301de201cd8332f

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/66c97b3eb38c117b3d12e4565208c7770d6fe6f6f27cc7ece301de201cd8332f/

Threat name:

Win32.Trojan.Generic

Status:

Malicious

First seen:

2024-10-08 20:31:06 UTC

File Type:

PE (Exe)

AV detection:

16 of 24 (66.67%)

Threat level:

2/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=m3exwpvtrqixwpis4rlfecgho4gw7zxw6j6mp3hdahpcahgygmxq._file

Result

Malware family:

stealc

Score:

10/10

Tags:

family:stealc botnet:doma credential_access discovery evasion spyware stealer

Link:

https://tria.ge/reports/241008-zapgmsxdnf/

Behaviour

Checks processor information in registry

Suspicious behavior: EnumeratesProcesses

System Location Discovery: System Language Discovery

Suspicious use of NtSetInformationThreadHideFromDebugger

Accesses cryptocurrency files/wallets, possible credential harvesting

Checks installed software on the system

Checks BIOS information in registry

Identifies Wine through registry keys

Loads dropped DLL

Reads data files stored by FTP clients

Reads user/profile data of web browsers

Unsecured Credentials: Credentials In Files

Downloads MZ/PE file

Identifies VirtualBox via ACPI registry values (likely anti-VM)

Stealc

Malware Config

C2 Extraction:

http://185.215.113.37

Verdict:

Malicious

Tags:

stealc

YARA:

n/a

Link:

https://app.threat.zone/submission/3bffb148-d170-4839-b94e-6f78febaac60

Unpacked files

SH256 hash:

66c97b3eb38c117b3d12e4565208c7770d6fe6f6f27cc7ece301de201cd8332f

MD5 hash:

f7b370ed882a5055e32f2ef666b25499

SHA1 hash:

dca352d76830c9485f8525e56d79d92775ac6e13

Link:

https://www.unpac.me/results/8c4888db-3ed2-4bd0-8457-2196b8c41879/

Malware family:

Stealc

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/_mb/66c97b3eb38c/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/66c97b3eb38c117b3d12e4565208c7770d6fe6f6f27cc7ece301de201cd8332f

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:	vmdetect Create hunting rule
Author:	nex
Description:	Possibly employs anti-virtualization techniques

File information

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

Web download

MarsStealer

exe 66c97b3eb38c117b3d12e4565208c7770d6fe6f6f27cc7ece301de201cd8332f

(this sample)

Dropped by

Amadey

Delivery method

Distributed via web download

URLhaus

https://urlhaus.abuse.ch/url/3183446/

URLhaus

https://urlhaus.abuse.ch/url/3171133/

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

Comments

Login required

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

No comments found for this malware sample