MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6431a7a099dd778ec7e9c8152db98624b23ed02a237c2fe0920d53424752316a. 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: 14


Intelligence 14 IOCs YARA 3 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6431a7a099dd778ec7e9c8152db98624b23ed02a237c2fe0920d53424752316a
SHA3-384 hash: ec60fdbee43a4ad5d158026ff84d51ccbcb0b77dc948f9f8e6e93225664825569ac060cfc522eb06271e85b4b8f1ef82
SHA1 hash: 4bd969abbb7eab99364a3322ce23da5a5769e28b
MD5 hash: 0b497342a00fced5eb28c7bfc990d02e
humanhash: violet-sierra-undress-saturn
File name:0b497342a00fced5eb28c7bfc990d02e
Download: download sample
Signature MarsStealer
Create hunting rule
File size:175'616 bytes
First seen:2024-03-02 08:22:57 UTC
Last seen:2024-03-02 10:17:15 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 3072:Bk8zIJp7NuzbgV43g8ea/aTfpYzeyUf0mv33LGr8lQAug1AForF9XUTX:rIv5uz8VH8eeyp33LGEPgSXU
TLSH T10604025177ABC337C8487B3915AA22511AF8F3C83E7392176A89156CDF0734F6672362
TrID 67.7% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
9.7% (.EXE) Win64 Executable (generic) (10523/12/4)
6.0% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
4.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
4.1% (.EXE) Win32 Executable (generic) (4504/4/1)
Reporter zbetcheckin
Tags:32 exe MarsStealer

Intelligence

File Origin
# of uploads :
2
# of downloads :
323
Origin country :
FR FR
Vendor Threat Intelligence
Detection:
Stealc
Create hunting rule
Link:
https://www.capesandbox.com/analysis/478248/
Detection(s):
SecuriteInfo.com.Trojan.PWS.Lumma.125.28150.28095.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a file
Сreating synchronization primitives
Connection attempt
Sending an HTTP GET request
Reading critical registry keys
Changing a file
Creating a file in the %AppData% subdirectories
Creating a window
Stealing user critical data
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
net_reactor packed packed stealc
Link:
https://www.filescan.io/uploads/65e2e1e6f73edfc47703cb38/reports/025e6349-57db-4a72-800b-4737660a474b/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/6431a7a099dd778ec7e9c8152db98624b23ed02a237c2fe0920d53424752316a
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.
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b458be63-46ac-4699-a117-0d1f044b9fb6
Result
Threat name:
Mars Stealer, Stealc, Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1401812
Signature
.NET source code contains very large array initializations
Allocates memory in foreign processes
C2 URLs / IPs found in malware configuration
Contains functionality to inject code into remote processes
Found evasive API chain (may stop execution after checking locale)
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Injects a PE file into a foreign processes
Machine Learning detection for sample
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Searches for specific processes (likely to inject)
Sigma detected: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
Snort IDS alert for network traffic
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)
Writes to foreign memory regions
Yara detected Mars stealer
Yara detected Stealc
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
Score:
97%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/6431a7a099dd778ec7e9c8152db98624b23ed02a237c2fe0920d53424752316a
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/6431a7a099dd778ec7e9c8152db98624b23ed02a237c2fe0920d53424752316a/
Threat name:
ByteCode-MSIL.Trojan.RedLineStealer
Create hunting rule
Status:
Malicious
First seen:
2024-02-26 22:02:13 UTC
File Type:
PE (.Net Exe)
Extracted files:
4
AV detection:
22 of 24 (91.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=mqy2piez3v3y5r7jzaks3omgeszd5ubken6c7yesbvjuer2sgfva._file
Verdict:
malicious
Result
Malware family:
n/a
Score:
  8/10
Tags:
discovery spyware stealer
Link:
https://tria.ge/reports/240302-j95d5scb26/
Behaviour
Checks processor information in registry
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of SetThreadContext
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Downloads MZ/PE file
Unpacked files
SH256 hash:
6e7103968ffaa44ad10492a4965ee8585eec1297ab33adfa5665980b168d3c52
MD5 hash:
9977f4caf02ebfffe6de9fba049317ca
SHA1 hash:
d55f481bf58cd4bb091e58d88108194b7caf3bca
Detections:
win_stealc_auto
Create hunting rule
Link:
https://www.unpac.me/results/8880e5fa-6c83-40ba-a88b-44f99ef10215/
SH256 hash:
6431a7a099dd778ec7e9c8152db98624b23ed02a237c2fe0920d53424752316a
MD5 hash:
0b497342a00fced5eb28c7bfc990d02e
SHA1 hash:
4bd969abbb7eab99364a3322ce23da5a5769e28b
Link:
https://www.unpac.me/results/8880e5fa-6c83-40ba-a88b-44f99ef10215/
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/6431a7a099dd/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/6431a7a099dd778ec7e9c8152db98624b23ed02a237c2fe0920d53424752316a

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:NET
Create hunting rule
Author:malware-lu
Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Web download

MarsStealer

Executable exe 6431a7a099dd778ec7e9c8152db98624b23ed02a237c2fe0920d53424752316a

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2774082/
Cape
Cape
https://www.capesandbox.com/analysis/478248/

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 (GUARD_CF)high

Comments


Avatar
zbet commented on 2024-03-02 08:22:58 UTC

url : hxxp://193.233.132.167/lend/jokerpos.exe