MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c9695c3eb5eb3547a489c484f0eafdbf8ae0ed503b89ae4a9fc47fff00bf3009. 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: 15


Intelligence 15 IOCs YARA 9 File information Comments 1

SHA256 hash: c9695c3eb5eb3547a489c484f0eafdbf8ae0ed503b89ae4a9fc47fff00bf3009
SHA3-384 hash: 9df7716ac0b827cf288d5f2e9d9b69e0e1c1f210507b70a23bb4926474305a0c7c5e902a5a73de3b87ef07b3d5ec3098
SHA1 hash: a168ebd12a0d3d2291644c1bfa4fc644a6e17604
MD5 hash: 23975c57c19e82c57ac9e1727666c203
humanhash: video-double-maine-high
File name:23975c57c19e82c57ac9e1727666c203
Download: download sample
Signature MarsStealer
File size:268'800 bytes
First seen:2023-11-05 20:12:15 UTC
Last seen:2023-11-05 20:26:19 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 105a7720394e63394e65284a3456719d (5 x Stealc, 3 x Tofsee, 1 x CoinMiner)
ssdeep 6144:UzM2MqWLo9rm0Cw/UAwLJLnoZ0DrS7VASp:8RWYrm3RlFXhS
Threatray 246 similar samples on MalwareBazaar
TLSH T1C8445A9392D17DF6F9264B728E2EC6F87A5DF150CF59776A22388A2F04B0172C263311
TrID 39.5% (.EXE) InstallShield setup (43053/19/16)
28.6% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
9.6% (.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)
File icon (PE):PE icon
dhash icon 08091a2a40a0c000 (1 x MarsStealer)
Reporter zbetcheckin
Tags:32 exe MarsStealer

Intelligence


File Origin
# of uploads :
3
# of downloads :
342
Origin country :
FR FR
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Sending a custom TCP request
DNS request
Sending an HTTP GET request
Creating a file
Reading critical registry keys
Changing a file
Creating a file in the %AppData% subdirectories
Creating a window
Running batch commands
Creating a process with a hidden window
Launching a process
Launching the default Windows debugger (dwwin.exe)
Stealing user critical data
Gathering data
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
lolbin packed shell32
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
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found evasive API chain (may stop execution after checking locale)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
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 submitted file
Sample uses string decryption to hide its real strings
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:
Threat name:
Win32.Trojan.Privateloader
Status:
Malicious
First seen:
2023-11-05 20:13:06 UTC
File Type:
PE (Exe)
Extracted files:
36
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Result
Malware family:
Score:
  10/10
Tags:
family:stealc discovery spyware stealer
Behaviour
Checks processor information in registry
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
Checks installed software on the system
Checks computer location settings
Deletes itself
Loads dropped DLL
Reads user/profile data of web browsers
Downloads MZ/PE file
Stealc
Malware Config
C2 Extraction:
http://jaimemcgee.top
Unpacked files
SH256 hash:
98e47c023430666672d18ddc47b21e511214a607d8a86586e01e2d33bbe20b35
MD5 hash:
b663d60bac4cf5c09fd1399aa29f38e3
SHA1 hash:
dbf52a4f440ce4d8236b7dad5dd9802a5bb84644
Detections:
stealc
SH256 hash:
c9695c3eb5eb3547a489c484f0eafdbf8ae0ed503b89ae4a9fc47fff00bf3009
MD5 hash:
23975c57c19e82c57ac9e1727666c203
SHA1 hash:
a168ebd12a0d3d2291644c1bfa4fc644a6e17604
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:DebuggerCheck__QueryInfo
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:Trojan_W32_Gh0stMiancha_1_0_0
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/
Rule name:yarahub_win_stealc_bytecodes_oct_2023
Author:Matthew @ Embee_Research

File information


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

Web download

MarsStealer

Executable exe c9695c3eb5eb3547a489c484f0eafdbf8ae0ed503b89ae4a9fc47fff00bf3009

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
zbet commented on 2023-11-05 20:12:16 UTC

url : hxxp://194.49.94.48/timeSync.exe