MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c3aeec8fdf17cb7d30e2d97dce245505d26b90e160856e90f9e7fb8949a01022. 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: 17


Intelligence 17 IOCs YARA 1 File information Comments

SHA256 hash: c3aeec8fdf17cb7d30e2d97dce245505d26b90e160856e90f9e7fb8949a01022
SHA3-384 hash: 78267f63971a18dd9f403879e253b1ea402851e377efa26c67d68ed305160792b64de27ac651a32bf6999e80d75850a5
SHA1 hash: 413785114a79f6ce35a5ea35af89b40e4a70b280
MD5 hash: 40cb7abb3661d5c0bbee8c794bc8fd01
humanhash: kentucky-social-stairway-quiet
File name:file
Download: download sample
Signature MarsStealer
File size:1'751'552 bytes
First seen:2024-09-06 20:20:35 UTC
Last seen:2024-09-06 21:30:07 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:Rh1hlH4vRteq8529WxH0yk19k16XAkFkvt6clXMcIlaGvgGclGdRHwsN5yaRIdyg:7FHieq8MWws6eMcC7vXmGdRHb5Ady
TLSH T1218533922C628EEDD5120CBAE80B4F9FB331FA6165A1CE9F4D11573AE0DB26C455D02F
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://31.41.244.11/steam/random.exe

Intelligence


File Origin
# of uploads :
4
# of downloads :
580
Origin country :
US US
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
0c417c06e07025778faf2380c3e3428a1160dd1922a31a16ad7de08dee6f7c7e
Verdict:
Malicious activity
Analysis date:
2024-09-06 20:19:15 UTC
Tags:
amadey botnet stealer loader stealc themida

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
92.5%
Tags:
Infostealer Network Stealth
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Searching for analyzing tools
Running batch commands
Creating a process with a hidden window
Launching a process
Connection attempt to an infection source
Sending an HTTP GET request to an infection source
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
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 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.Stealerc
Status:
Malicious
First seen:
2024-09-06 20:21:11 UTC
File Type:
PE (Exe)
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Verdict:
unknown
Result
Malware family:
Score:
  10/10
Tags:
family:stealc botnet:leva discovery evasion stealer
Behaviour
Suspicious behavior: EnumeratesProcesses
System Location Discovery: System Language Discovery
Suspicious use of NtSetInformationThreadHideFromDebugger
Checks BIOS information in registry
Identifies Wine through registry keys
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Stealc
Malware Config
C2 Extraction:
http://185.215.113.100
Unpacked files
SH256 hash:
ff9223b3b4ed89fb548a95ee6472029cf458f42979f1ef58a346e073328823c0
MD5 hash:
e890a784ab5f7699b81026780f1787de
SHA1 hash:
993a11ab1995376326329ac12f1c4d510a88a50d
Detections:
stealc win_stealc_w0 win_stealc_a0
SH256 hash:
c3aeec8fdf17cb7d30e2d97dce245505d26b90e160856e90f9e7fb8949a01022
MD5 hash:
40cb7abb3661d5c0bbee8c794bc8fd01
SHA1 hash:
413785114a79f6ce35a5ea35af89b40e4a70b280
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:Detect_Malicious_VBScript_Base64
Author:daniyyell
Description:Detects malicious VBScript patterns, including Base64 decoding, file operations, and PowerShell.

File information


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

Web download

MarsStealer

Executable exe c3aeec8fdf17cb7d30e2d97dce245505d26b90e160856e90f9e7fb8949a01022

(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

Comments