MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 8923a8b55952f2e0e5ffec6971bc00bf2b30c9f194a7b1ad7bf7680a17a2ec4d. 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: 8923a8b55952f2e0e5ffec6971bc00bf2b30c9f194a7b1ad7bf7680a17a2ec4d
SHA3-384 hash: 91ca61a350e08574397565c02e8a2d2f266ee56b74584dd396c7b8dffddfdafcbf662076cbe0af838030b7b6bd0b1d41
SHA1 hash: ffe4af728b65e3ab603908782c34b3d205414cd8
MD5 hash: a3cbb9d8aded813f4bc516175f890a26
humanhash: pennsylvania-victor-aspen-wyoming
File name:file
Download: download sample
Signature MarsStealer
File size:1'844'224 bytes
First seen:2024-10-21 22:49:04 UTC
Last seen:2024-10-21 23:48:14 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 49152:p6veYE0lJ7BnmF99mz569AbBlhQ7zi+7:p6Ey7Bmz1GbBTWu0
TLSH T122853304EC083A5BCC0D6B398F5B5B78FFB56F5F22D5B7445E6C023A822B9595A20C1E
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://185.215.113.16/steam/random.exe

Intelligence


File Origin
# of uploads :
19
# of downloads :
522
Origin country :
US US
Vendor Threat Intelligence
Malware family:
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2024-10-21 22:51:12 UTC
Tags:
lumma stealer themida loader stealc amadey botnet

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
94.9%
Tags:
Vmdetect Lien Spam
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Searching for analyzing tools
Searching for the window
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:
anti-vm microsoft_visual_cc packed packed packer_detected
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:
Detection:
malicious
Classification:
troj.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
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)
Yara detected Powershell download and execute
Yara detected Stealc
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Stealerc
Status:
Malicious
First seen:
2024-10-21 22:50:06 UTC
File Type:
PE (Exe)
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:stealc botnet:doma 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://185.215.113.37
Unpacked files
SH256 hash:
98fc0809f7638b25c8e8f2931cba41b73ebbdb0cbd7edd3c173f3e39f2fdf413
MD5 hash:
00a569c0328d279fab1f1dab1c228756
SHA1 hash:
2b69873f11a32a30bcf779d666858d2266ddaa37
Detections:
stealc win_stealc_w0 win_stealc_a0 detect_Mars_Stealer
SH256 hash:
8923a8b55952f2e0e5ffec6971bc00bf2b30c9f194a7b1ad7bf7680a17a2ec4d
MD5 hash:
a3cbb9d8aded813f4bc516175f890a26
SHA1 hash:
ffe4af728b65e3ab603908782c34b3d205414cd8
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 8923a8b55952f2e0e5ffec6971bc00bf2b30c9f194a7b1ad7bf7680a17a2ec4d

(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