MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6a8d89dce793fe2b3dece3e933914a579153c8b26761c128d3b550d6a5e48995. 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 13 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 6a8d89dce793fe2b3dece3e933914a579153c8b26761c128d3b550d6a5e48995
SHA3-384 hash: b312d1274b919f485b430989e42ddc838cd119e008fc753896acf9fe8bb77c3e98df544b08ff535ff371d4adfa659f28
SHA1 hash: efefa87b3b780242b97768b3e11ad4644c421882
MD5 hash: 1270a54cd698df5f7420ee5ab890383c
humanhash: beer-indigo-grey-rugby
File name:file
Download: download sample
Signature MarsStealer
Create hunting rule
File size:271'872 bytes
First seen:2023-11-03 07:51:58 UTC
Last seen:2023-11-03 09:19:30 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash ee827750429cc6977e10fe712ee76a8f (2 x Stealc, 2 x MarsStealer, 1 x Smoke Loader)
ssdeep 3072:bPKVoZexdi6X4V/1oVBnFP4+2qqR7ZWawlsW449:eoZextX4V16BFUqqR7ZW9uW4
TLSH T1AF444C7392B16C62E526C7328E2EC7F83A1DB4608F5537AB12659E2F09711F1C27371A
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 00180a244a651204 (1 x MarsStealer)
Reporter andretavare5
Tags:exe MarsStealer


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

Intelligence

File Origin
# of uploads :
2
# of downloads :
297
Origin country :
US US
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/457950/
Detection(s):
SecuriteInfo.com.Win32.PWSX-gen.30917.19058.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
DNS request
Sending an HTTP GET request
Creating a file
Reading critical registry keys
Changing a file
Sending a custom TCP request
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)
Searching for the window
Stealing user critical data
Gathering data
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
control greyware lolbin packed
Link:
https://www.filescan.io/uploads/6544a6a5b95974e8222a1659/reports/24c60b63-3f3c-4300-bf67-5c08ccfe4666/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/6a8d89dce793fe2b3dece3e933914a579153c8b26761c128d3b550d6a5e48995
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/f380a43b-690e-4f33-a204-e1df9abfa67e
Result
Threat name:
Stealc, Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1336478
Signature
Antivirus / Scanner detection for submitted sample
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 domain / URL
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:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/6a8d89dce793fe2b3dece3e933914a579153c8b26761c128d3b550d6a5e48995
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/6a8d89dce793fe2b3dece3e933914a579153c8b26761c128d3b550d6a5e48995/
Threat name:
Win32.Trojan.Privateloader
Create hunting rule
Status:
Malicious
First seen:
2023-11-03 08:06:48 UTC
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=nkgytxhhsp7cwppm4puthekkk6ivhsfsm5q4ckgtwvinnjpergkq._file
Verdict:
malicious
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:stealc discovery spyware stealer
Link:
https://tria.ge/reports/231103-jqdr3sgb63/
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://williammoore.top
Unpacked files
SH256 hash:
6b0ad900bd0abb43d153c07f8f6dd92aa25fb2515b55c5ae54d807d7e159e3ff
MD5 hash:
2951667e5bf8c0769e3e6c8db64beacb
SHA1 hash:
50e0446d3a0440d2edcb3fea00a2b8bc0795c785
Detections:
stealc
Create hunting rule
Link:
https://www.unpac.me/results/b836b78b-d5a6-43ae-aa5e-9eed47e421d3/
Parent samples :
5166d61c8b8b42bb7fc4c61847cac83c284031d523e8998633b01e0af6e02e8d
6a8d89dce793fe2b3dece3e933914a579153c8b26761c128d3b550d6a5e48995
5aeaa349b8e610123b2093436bbce6b76f4a6cef193c266dbbc6888fdcac5b5b
11600a65e9843dd9405b14825e0f8972e6843d18d56c919dde88e493d2a563ab
1671e83e843e98dadcebe0e45749120ca568409c3f8fbd60f5273aa6f8b7f589
dc84380a46e1c26626db797d8e2f9e5e64096c5a79539e048e3ffb395b406e3a
f7ba95f0e91ac4ca37c1615a5e09c3da8b9e2a495e52a5e1db142fc85f8b9a8e
56a6193fa150519df0ef9043094a2235855d6cb3fca36a4bfcb73cc57e800831
2ab87c14730e6d85b5f71395c6f228acdc70d6a3ee7078eefa53d206b64c4e25
d6eabb83f35e3577eb994fac432bb4334d579393249bdd6cbf39f71bd3785d59
0e0048728bb3a7cd7adb96810918aad5192388707fd2c94a02138bb9a724f430
46833ca0a3bacd5a06af6ead4ad2915d7fc0bd92af8c1ab32b453d55bf7dbdf9
22129d7e9e05b24fa1b6e10177a3e2f793f478f147f6d0688f6c85806d434341
aff40728907a20084c4762db4b6f305dc3e56695a538b92d8a418b0b29821522
b2880d24019913e08f0abb9b7f6595faef75de3199269f092e315e13bea5e099
SH256 hash:
6a8d89dce793fe2b3dece3e933914a579153c8b26761c128d3b550d6a5e48995
MD5 hash:
1270a54cd698df5f7420ee5ab890383c
SHA1 hash:
efefa87b3b780242b97768b3e11ad4644c421882
Link:
https://www.unpac.me/results/b836b78b-d5a6-43ae-aa5e-9eed47e421d3/
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/6a8d89dce793/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/6a8d89dce793fe2b3dece3e933914a579153c8b26761c128d3b550d6a5e48995

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
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerException__SetConsoleCtrl
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:detect_Mars_Stealer
Create hunting rule
Author:@malgamy12
Description:detect_Mars_Stealer
Rule name:infostealer_win_stealc_standalone
Create hunting rule
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
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:Trojan_W32_Gh0stMiancha_1_0_0
Create hunting rule
Rule name:Windows_Trojan_Smokeloader_3687686f
Create hunting rule
Author:Elastic Security
Rule name:win_stealc_w0
Create hunting rule
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
Create hunting rule
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
Cape
Cape
https://www.capesandbox.com/analysis/457950/
  
URLhaus
https://urlhaus.abuse.ch/url/2727390/

Comments