MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f4877ae52d445d968d573c3329181ea34c95fbe77f1acc6ee4cf0d1d25378634. 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: f4877ae52d445d968d573c3329181ea34c95fbe77f1acc6ee4cf0d1d25378634
SHA3-384 hash: ba75927a12b9a102ec85b7918a68dec152b5ef55c1965814b30125f0a7282834bddd9bd2c253756d4d251ff44be2870a
SHA1 hash: c40f76622aecee12aa9473c95f330efb89c4bd47
MD5 hash: 4ad838d33cbcc589a2cfe7b88b83a906
humanhash: foxtrot-happy-alanine-nine
File name:file
Download: download sample
Signature MarsStealer
File size:2'138'624 bytes
First seen:2024-11-04 00:56:44 UTC
Last seen:2024-11-04 02:24:31 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:tVUU6shvFK0gb/0bVoymLczAPv85Z0181X6myC:twshtM/UmiF5Z48wrC
TLSH T176A53369C4D6768BDCDF3B79083AC76E35B233761183EE24B44C13379863AA56B46C48
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 :
26
# of downloads :
411
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2024-11-04 00:57:32 UTC
Tags:
lumma stealer stealc loader

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
91.7%
Tags:
vmdetect spam
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Searching for analyzing tools
Creating a file
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
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 domain / URL
Multi AV Scanner detection for submitted file
PE file contains section with special chars
Sample uses string decryption to hide its real strings
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:
2024-11-04 00:57:05 UTC
File Type:
PE (Exe)
AV detection:
27 of 38 (71.05%)
Threat level:
  5/5
Verdict:
malicious
Label(s):
Similar samples:
Result
Malware family:
Score:
  10/10
Tags:
family:stealc botnet:tale 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
Stealc family
Malware Config
C2 Extraction:
http://185.215.113.206
Verdict:
Malicious
Tags:
stealc
YARA:
n/a
Unpacked files
SH256 hash:
81a4f37c5495800b7cc46aea6535d9180dadb5c151db6f1fd1968d1cd8c1eeb4
MD5 hash:
eda18948a989176f4eebb175ce806255
SHA1 hash:
ff22a3d5f5fb705137f233c36622c79eab995897
SH256 hash:
99518296ad4d026edff50166080e762c96d803d28a701b59264d777175690958
MD5 hash:
90b5ffa5f193e8d1c4f9c51dc8f1c887
SHA1 hash:
c203f13bd982fc1a7a2cf748a94f8349ddd594c3
Detections:
stealc win_stealc_w0 win_stealc_a0 detect_Mars_Stealer
SH256 hash:
62a8142429909355631af6c66b940bc9d44248196e6ac43bbdc3e9d57590772b
MD5 hash:
c8d0f28e9324b90d9132a086caca5602
SHA1 hash:
5283e60d6ce01ea28fe40cccc2c1e5f8e3fc009f
SH256 hash:
f4877ae52d445d968d573c3329181ea34c95fbe77f1acc6ee4cf0d1d25378634
MD5 hash:
4ad838d33cbcc589a2cfe7b88b83a906
SHA1 hash:
c40f76622aecee12aa9473c95f330efb89c4bd47
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 f4877ae52d445d968d573c3329181ea34c95fbe77f1acc6ee4cf0d1d25378634

(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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