MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5d818a96c25ab660e15720a914dd07a5174214be72f1d4e72019f598cee4d983. 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: 11


Intelligence 11 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5d818a96c25ab660e15720a914dd07a5174214be72f1d4e72019f598cee4d983
SHA3-384 hash: a8dd869945a9d68e62d34c52732d5673e494f7b304c57a6f1c31f5607161273a606d06dd55575046005b695ea7110f78
SHA1 hash: 1618af00916ad9631bd8a3dc5be895ce3ce56911
MD5 hash: 076fdd478a34a40f5b68ac2997e148e6
humanhash: missouri-glucose-freddie-ceiling
File name:file
Download: download sample
Signature MarsStealer
Create hunting rule
File size:295'936 bytes
First seen:2023-08-03 06:29:14 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 63b403774c774916f9ed6282f41f8cf0 (2 x RedLineStealer, 2 x Smoke Loader, 1 x Tofsee)
ssdeep 3072:Cs1uGlEQZu7xM/L18eggb+lJiGhrF8TT7Sfynn6smo55k+k2LkU6QGCEWj:CXtQZu7xUL18ab+eTTean6hAbk2o
TLSH T1B354AF127691E872E62605758D2ACBF8293EB8708F195AD733442F6F1D312E2DF72342
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 0008b181842a2a84 (1 x MarsStealer)
Reporter andretavare5
Tags:exe MarsStealer


Avatar
andretavare5
Sample downloaded from http://reinroot.top/calc2.exe

Intelligence

File Origin
# of uploads :
1
# of downloads :
290
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-08-03 06:30:53 UTC
Tags:
stealc stealer
Link:
https://app.any.run/tasks/593f0074-10a0-49c9-b7ad-394cefa742da

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/439960/
Detection(s):
Win.Packer.pkr_ce1a-9980177-0
Create hunting rule

Result
Verdict:
Clean
Maliciousness:

Behaviour
Searching for the window
Sending a custom TCP request
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware packed
Link:
https://www.filescan.io/uploads/64cb496b539838c2be520760/reports/951f3cf9-8910-4e41-ba89-65cd958e4cf9/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/5d818a96c25ab660e15720a914dd07a5174214be72f1d4e72019f598cee4d983
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/ddabdf4f-cbfc-432a-81b5-b2f9d65f393e
Result
Threat name:
Stealc, Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1284852
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 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
Searches for specific processes (likely to inject)
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
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/5d818a96c25ab660e15720a914dd07a5174214be72f1d4e72019f598cee4d983/
Threat name:
Win32.Trojan.Privateloader
Create hunting rule
Status:
Malicious
First seen:
2023-08-03 06:13:07 UTC
File Type:
PE (Exe)
Extracted files:
26
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=lwayvfwclk3gbykxecurjxihuulueff6oly5jzzadh2zrtxe3gbq._file
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:stealc spyware stealer
Link:
https://tria.ge/reports/230803-g9glzabf96/
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
Malware Config
C2 Extraction:
http://adriaenclaeys.top/e9c345fc99a4e67e.php
Unpacked files
SH256 hash:
a67ebefdcae4ba5d76bce770a4920256e84195bef3a4702d967be7e5b8181c12
MD5 hash:
7055fcde2b7f39ef7f8007b3bfc1a0bf
SHA1 hash:
676adecade4e2b6c3275ca39ac65059c1863509f
Link:
https://www.unpac.me/results/9e310a94-efee-4eac-9dc5-11a0b61cb869/
SH256 hash:
5d818a96c25ab660e15720a914dd07a5174214be72f1d4e72019f598cee4d983
MD5 hash:
076fdd478a34a40f5b68ac2997e148e6
SHA1 hash:
1618af00916ad9631bd8a3dc5be895ce3ce56911
Link:
https://www.unpac.me/results/9e310a94-efee-4eac-9dc5-11a0b61cb869/
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/5d818a96c25a/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: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:sus_pe_free_without_allocation
Create hunting rule
Author:Maxime THIEBAUT (@0xThiebaut)
Description:Detects an executable importing functions to free memory without importing allocation functions, often indicative of dynamic import resolution
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/

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/439960/
  
URLhaus
https://urlhaus.abuse.ch/url/2690247/

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