MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 105dd6588b4c238c1d53131dfb31bf6927839accea90d2d798765e0a96f4f0e5. 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: 16


Intelligence 16 IOCs YARA 7 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 105dd6588b4c238c1d53131dfb31bf6927839accea90d2d798765e0a96f4f0e5
SHA3-384 hash: 750d9104749174f731cfaa4c4073392adc27478022dc920c4d20e64dc30a3a95340f9d87ab86465122ae4b4bbed13a97
SHA1 hash: dc978fc118f0a4ef58cfc51f263faca8c44e272f
MD5 hash: dcb5d127b4a883bc2e2b662fbc06e292
humanhash: papa-helium-mississippi-sodium
File name:file
Download: download sample
Signature MarsStealer
Create hunting rule
File size:269'824 bytes
First seen:2023-10-18 22:32:33 UTC
Last seen:2023-10-18 23:56:59 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 5241d7444d4d8584697b8889b03f1a00 (2 x MarsStealer, 2 x Amadey, 1 x Stealc)
ssdeep 3072:ADBNyDyvjTcG+mK12mB+lqyYo/3e/B1xAvc30OSu9o8GJ:4UyvjgG+mK12g+lqyD3IT2c30OjoD
TLSH T11D44D1117790D832E86319324931C6AA2B37FCF2A97545CB37983E2EAE716C15B71B43
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 70d0dec0d1ccd2dd (1 x MarsStealer)
Reporter andretavare5
Tags:exe MarsStealer


Avatar
andretavare5
Sample downloaded from http://jackantonio.top/timeSync.exe

Intelligence

File Origin
# of uploads :
2
# of downloads :
348
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-10-19 08:00:06 UTC
Tags:
stealc stealer
Link:
https://app.any.run/tasks/a1cf745e-b486-4cf7-9fa0-fd71d6b55dd5

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Trojan.DownLoader46.24881.17702.15931.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
DNS request
Launching the default Windows debugger (dwwin.exe)
Sending a custom TCP request
Gathering data
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware lolbin shell32
Link:
https://www.filescan.io/uploads/65305d1e31e7dae3d7a7760a/reports/170c2640-6a5e-436c-9719-89bc6014e560/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/105dd6588b4c238c1d53131dfb31bf6927839accea90d2d798765e0a96f4f0e5
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
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/5897ae58-4e31-443c-bc25-b26ff5c8e74d
Result
Threat name:
Stealc, Vidar
Create hunting rule
Detection:
malicious
Classification:
n/a
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1328380
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 malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
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/105dd6588b4c238c1d53131dfb31bf6927839accea90d2d798765e0a96f4f0e5
Detection:
stealc
Create hunting rule
Link:
https://mwdb.cert.pl/sample/105dd6588b4c238c1d53131dfb31bf6927839accea90d2d798765e0a96f4f0e5/
Threat name:
Win32.Trojan.Privateloader
Create hunting rule
Status:
Malicious
First seen:
2023-10-18 22:33:05 UTC
File Type:
PE (Exe)
Extracted files:
12
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=cbo5mweljqryyhktcmo7wmn7netyhgwm5kinfv4yozpavfxu6dsq._file
Verdict:
malicious
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:stealc discovery spyware stealer
Link:
https://tria.ge/reports/231018-2ghc1sde68/
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://kevinrobinson.top
Unpacked files
SH256 hash:
0250eca00f2b3af694f4fbe2cce813cd21c80640dcc246d06d1a880c2575cdf7
MD5 hash:
96d414f1a261ed4fdbbe76b041999304
SHA1 hash:
6c65917f825b543f551a6128f256a6af8ed5b12c
Detections:
stealc
Create hunting rule
Link:
https://www.unpac.me/results/fb58320a-6fc3-41ff-9af1-8584c4805a2c/
Parent samples :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 hash:
105dd6588b4c238c1d53131dfb31bf6927839accea90d2d798765e0a96f4f0e5
MD5 hash:
dcb5d127b4a883bc2e2b662fbc06e292
SHA1 hash:
dc978fc118f0a4ef58cfc51f263faca8c44e272f
Link:
https://www.unpac.me/results/fb58320a-6fc3-41ff-9af1-8584c4805a2c/
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/105dd6588b4c/report/overview.html
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
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: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
  
URLhaus
https://urlhaus.abuse.ch/url/2720398/

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