MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b876aced86b0a17b4469db3a1bd3b18e01ba292eb205fd2796c117aa3cf0e2c9. 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 11 File information Comments

SHA256 hash: b876aced86b0a17b4469db3a1bd3b18e01ba292eb205fd2796c117aa3cf0e2c9
SHA3-384 hash: 33a8a2aab3815a36bf84364a47d92ee8281b70451489cbfa923f77946791a244abf4bddd49c50b56cf76234a7958d682
SHA1 hash: 15db575ca2db44ff893a4bf4b7fb87bc54fc4c14
MD5 hash: 3f7e2310b4bc327ff524d314711b1857
humanhash: india-eight-speaker-august
File name:file
Download: download sample
Signature MarsStealer
File size:227'328 bytes
First seen:2023-11-01 23:32:45 UTC
Last seen:2023-11-02 01:20:18 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 986bd7e9a23efe5404746408f2b31f4b (2 x MarsStealer, 1 x Stealc)
ssdeep 6144:poA9lWT6X4+Gv8egWCYJ5Uv5tH7SUrpLEw:/lk6X4J8egW5UxtHm2Ew
Threatray 158 similar samples on MalwareBazaar
TLSH T1CF247C1352F1BC61F6274773AE2AC1A4769EB5608F557B9B22549E2F09B13F2C272303
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4505/5/1)
File icon (PE):PE icon
dhash icon 0484904086644054 (1 x MarsStealer)
Reporter andretavare5
Tags:exe MarsStealer


Avatar
andretavare5
Sample downloaded from http://michaelcoleman.icu/timeSync.exe

Intelligence


File Origin
# of uploads :
3
# of downloads :
425
Origin country :
US US
Vendor Threat Intelligence
Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
DNS request
Launching the default Windows debugger (dwwin.exe)
Gathering data
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control greyware lolbin packed
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.spyw.evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
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
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
Snort IDS alert for network traffic
Tries to harvest and steal browser information (history, passwords, etc)
Yara detected Stealc
Behaviour
Behavior Graph:
Threat name:
Win32.Trojan.Generic
Status:
Malicious
First seen:
2023-11-01 23:33:04 UTC
File Type:
PE (Exe)
Extracted files:
26
AV detection:
15 of 24 (62.50%)
Threat level:
  2/5
Result
Malware family:
Score:
  10/10
Tags:
family:stealc discovery spyware stealer
Behaviour
Checks processor information in registry
Suspicious behavior: EnumeratesProcesses
Program crash
Checks installed software on the system
Reads user/profile data of web browsers
Stealc
Unpacked files
SH256 hash:
b876aced86b0a17b4469db3a1bd3b18e01ba292eb205fd2796c117aa3cf0e2c9
MD5 hash:
3f7e2310b4bc327ff524d314711b1857
SHA1 hash:
15db575ca2db44ff893a4bf4b7fb87bc54fc4c14
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:DebuggerException__ConsoleCtrl
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:SEH__vectored
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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.

  
Dropped by
PrivateLoader
  
Delivery method
Distributed via drive-by

Comments