MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 0044ef132e6113d649ef27f1864c350ba16cb7ad5b4257fdb24a8cf9ec670310. 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: 13


Intelligence 13 IOCs YARA 9 File information Comments

SHA256 hash: 0044ef132e6113d649ef27f1864c350ba16cb7ad5b4257fdb24a8cf9ec670310
SHA3-384 hash: cc018f981c3d8c61742341b1f183b42d2f848e6659c4961fbca561232feff48157dfcbc7424ad110c726ea8dba9e7e8e
SHA1 hash: fdcdcef4ab1a741d3c720b76d5b99a8440c2a6c4
MD5 hash: 8b6381e7012b5af6f496088eabe38ef2
humanhash: delta-mars-indigo-beryllium
File name:file
Download: download sample
Signature MarsStealer
File size:239'104 bytes
First seen:2023-08-22 00:53:13 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 369416073ed39eb88716e6b4aeee9423 (1 x RedLineStealer, 1 x MarsStealer, 1 x Stealc)
ssdeep 3072:9+MYUoB6O1L/sfZ4ToXOYju1CA+pkqU26Vf2O7OXxJiEA4Of5g8pjFx:joBNL/sfZ4To+F1Cvp+tV/6Y54h8pjf
Threatray 144 similar samples on MalwareBazaar
TLSH T1B734AE0262E1FB36F5674631DF2EC2F07AEEB4615F559A563314072B0EB02A2D66F312
TrID 37.3% (.EXE) Win64 Executable (generic) (10523/12/4)
17.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
16.0% (.EXE) Win32 Executable (generic) (4505/5/1)
7.3% (.ICL) Windows Icons Library (generic) (2059/9)
7.2% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 000828480e030600 (1 x MarsStealer)
Reporter andretavare5
Tags:exe MarsStealer


Avatar
andretavare5
Sample downloaded from http://andrewjohnson.top/calc.exe

Intelligence


File Origin
# of uploads :
1
# of downloads :
325
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-08-22 00:55:39 UTC
Tags:
stealc stealer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Suspicious
Maliciousness:

Behaviour
Sending a custom TCP request
Running batch commands
Creating a process with a hidden window
Launching a process
Launching the default Windows debugger (dwwin.exe)
Result
Malware family:
n/a
Score:
  9/10
Tags:
n/a
Behaviour
MalwareBazaar
CPUID_Instruction
SystemUptime
MeasuringTime
EvasionQueryPerformanceCounter
EvasionGetTickCount
CheckCmdLine
Gathering data
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:
Oski Stealer
Verdict:
Malicious
Result
Threat name:
Stealc, Vidar
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found evasive API chain (may stop execution after checking locale)
Found many strings related to Crypto-Wallets (likely being stolen)
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Self deletion via cmd or bat file
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Crypto Currency Wallets
Tries to steal Mail credentials (via file / registry access)
Yara detected Stealc
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Result
Malware family:
Score:
  10/10
Tags:
family:stealc spyware stealer
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Accesses cryptocurrency files/wallets, possible credential harvesting
Deletes itself
Loads dropped DLL
Reads user/profile data of web browsers
Downloads MZ/PE file
Stealc
Unpacked files
SH256 hash:
6506a462fb49a209a33e36b85b2912b71fa79b318437bc73c08c800800351ceb
MD5 hash:
bb14bb3ccf65f7e521b7297c15c295f5
SHA1 hash:
49bd67b5c3f75b481270afd50a292b8346490c82
SH256 hash:
0044ef132e6113d649ef27f1864c350ba16cb7ad5b4257fdb24a8cf9ec670310
MD5 hash:
8b6381e7012b5af6f496088eabe38ef2
SHA1 hash:
fdcdcef4ab1a741d3c720b76d5b99a8440c2a6c4
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:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerException__SetConsoleCtrl
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:detect_Mars_Stealer
Author:@malgamy12
Description:detect_Mars_Stealer
Rule name:infostealer_win_stealc_standalone
Description:Find standalone Stealc sample based on decryption routine or characteristic strings
Reference:https://blog.sekoia.io/stealc-a-copycat-of-vidar-and-raccoon-infostealers-gaining-in-popularity-part-1/
Rule name:maldoc_find_kernel32_base_method_1
Author:Didier Stevens (https://DidierStevens.com)
Rule name:Windows_Trojan_Smokeloader_3687686f
Author:Elastic Security
Rule name:win_stealc_w0
Author:crep1x
Description:Find standalone Stealc sample based on decryption routine or characteristic strings
Reference:https://blog.sekoia.io/stealc-a-copycat-of-vidar-and-raccoon-infostealers-gaining-in-popularity-part-1/

File information


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

  
Dropped by
PrivateLoader
  
Delivery method
Distributed via drive-by

Comments