MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e4f21df67f53b015398579b25cf7b5ce873d94522f7c6c8fced82673d135fac6. 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: 15


Intelligence 15 IOCs YARA 1 File information Comments

SHA256 hash: e4f21df67f53b015398579b25cf7b5ce873d94522f7c6c8fced82673d135fac6
SHA3-384 hash: 7cde1abd9675e5ee48d6ab55fb3c2ae99f32f2ad9e1bde1f78ffaf9742baebc7b8c5b3e1a0f2ed7def02848c979465f2
SHA1 hash: 59a81d48e50a8ea2c55cf7ae56d0de9c379972f2
MD5 hash: f99bff62e7442175697c5b103a993298
humanhash: lactose-oregon-social-nine
File name:file
Download: download sample
Signature MarsStealer
File size:1'826'816 bytes
First seen:2024-09-16 03:45:52 UTC
Last seen:2024-09-16 05:20:48 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 2eabe9054cad5152567f0699947a2c5b (2'852 x LummaStealer, 1'312 x Stealc, 1'026 x Healer)
ssdeep 24576:80xMki4tLX0b9uaDrZubTY5h1VBWOjwvO5j0aelRr9K5UOa7T9nXCQbHVm+bs4qQ:4mq9u7bT2vk25Ab/r9EUO4Tl1LV
TLSH T13A853328C918DB5AE61DC3B07AF3CB06B1E78DBB55482B90075A72F8AD57586F073B10
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


Avatar
Bitsight
url: http://185.215.113.100/steam/random.exe

Intelligence


File Origin
# of uploads :
4
# of downloads :
503
Origin country :
US US
Vendor Threat Intelligence
Verdict:
Malicious
Score:
96.5%
Tags:
Infostealer Network Stealth
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
anti-vm microsoft_visual_cc packed
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.
Result
Threat name:
Stealc, Vidar
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
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 domain / URL
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:
Threat name:
Win32.Trojan.Generic
Status:
Malicious
First seen:
2024-09-16 03:46:05 UTC
File Type:
PE (Exe)
AV detection:
17 of 38 (44.74%)
Threat level:
  2/5
Verdict:
malicious
Result
Malware family:
Score:
  10/10
Tags:
family:stealc botnet:rave credential_access discovery evasion spyware stealer
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
Credentials from Password Stores: Credentials from Web Browsers
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Stealc
Malware Config
C2 Extraction:
http://185.215.113.103
Unpacked files
SH256 hash:
53a268cf4ff3ccf77cf38449b76ac135a7f270667ddfbb24874fc83cc8b19672
MD5 hash:
9f66a29d12b56f3f064aee83a81de7e6
SHA1 hash:
65a97a79b770abd9b1c450f4e7081829e52e546f
Detections:
stealc win_stealc_w0 win_stealc_a0
SH256 hash:
e4f21df67f53b015398579b25cf7b5ce873d94522f7c6c8fced82673d135fac6
MD5 hash:
f99bff62e7442175697c5b103a993298
SHA1 hash:
59a81d48e50a8ea2c55cf7ae56d0de9c379972f2
Please note that we are no longer able to provide a coverage score for Virus Total.

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
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

Executable exe e4f21df67f53b015398579b25cf7b5ce873d94522f7c6c8fced82673d135fac6

(this sample)

  
Dropped by
Amadey
  
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
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
CHECK_NXMissing Non-Executable Memory Protectioncritical

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