MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4899660112f2e8f637d3236a7081ce7b53887651ed896712acda6509f473e439. 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: 18


Intelligence 18 IOCs YARA File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4899660112f2e8f637d3236a7081ce7b53887651ed896712acda6509f473e439
SHA3-384 hash: 1603b97fcffc0b8f032ec2dc15c088492640df63d4c5819801e31185da2537306c131eb510f69bd0a299c0b4f6797add
SHA1 hash: 96464cb96d17ad6cd55aa3e143e9cbda3f4dc47d
MD5 hash: f3a208d03776378776a9fdc3ce740ac9
humanhash: fix-utah-victor-equal
File name:file
Download: download sample
Signature MarsStealer
Create hunting rule
File size:2'105'344 bytes
First seen:2024-11-08 07:57:56 UTC
Last seen:2024-11-08 09:24:10 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 2eabe9054cad5152567f0699947a2c5b (2'852 x LummaStealer, 1'312 x Stealc, 1'026 x Healer)
ssdeep 49152:7c1j9onWbLiAwHRTTRnUXuTWwTuwi71+HSYUMUwt6:7KeLxft7mV2t6
Threatray 1 similar samples on MalwareBazaar
TLSH T117A5336B5D07729DC78A4833677C8D4D606E80AD7ABCC8D02F5E7372F442356B612CAA
TrID 27.1% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
20.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
18.6% (.EXE) Win32 Executable (generic) (4504/4/1)
8.5% (.ICL) Windows Icons Library (generic) (2059/9)
8.3% (.EXE) OS/2 Executable (generic) (2029/13)
Magika pebin
Reporter Bitsight
Tags:exe MarsStealer


Avatar
Bitsight
url: http://185.215.113.16/steam/random.exe

Intelligence

File Origin
# of uploads :
25
# of downloads :
283
Origin country :
US US
Vendor Threat Intelligence
Malware family:
amadey
Create hunting rule
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2024-11-08 08:29:35 UTC
Tags:
stealer stealc loader rust themida amadey botnet lumma possible-phishing
Link:
https://app.any.run/tasks/f1b847b9-806e-4d6f-99fb-04d0ef47cb5d

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
SecuriteInfo.com.Win32.BackdoorX-gen.7741.26944.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
94.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=672dc491a5bee3c9d42bb664
Tags:
powershell autorun spam lien
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Сreating synchronization primitives
Searching for analyzing tools
Creating a file
Running batch commands
Creating a process with a hidden window
Launching a process
Connection attempt to an infection source
Sending an HTTP GET request to an infection source
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
microsoft_visual_cc packed packed packer_detected
Link:
https://www.filescan.io/uploads/672dc48c53112d61aaa95071/reports/1cf161fe-6bbd-4e82-b497-3616285991e4/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/4899660112f2e8f637d3236a7081ce7b53887651ed896712acda6509f473e439
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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/4fa14423-a87f-4314-82ba-85afeaa9e001
Result
Threat name:
LummaC, Amadey, LummaC Stealer, Stealc,
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1551890
Signature
AI detected suspicious sample
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Attempt to bypass Chrome Application-Bound Encryption
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Drops PE files to the document folder of the user
Drops PE files to the user root directory
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)
Hides threads from debuggers
LummaC encrypted strings found
Machine Learning detection for sample
Monitors registry run keys for changes
Multi AV Scanner detection for submitted file
PE file contains section with special chars
Sample uses string decryption to hide its real strings
Sigma detected: New RUN Key Pointing to Suspicious Folder
Suricata IDS alerts for network traffic
Tries to detect process monitoring tools (Task Manager, Process Explorer etc.)
Tries to detect sandboxes / dynamic malware analysis system (registry check)
Tries to detect sandboxes and other dynamic analysis tools (window names)
Tries to detect virtualization through RDTSC time measurements
Tries to evade debugger and weak emulator (self modifying code)
Tries to harvest and steal Bitcoin Wallet information
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to steal Crypto Currency Wallets
Tries to steal Mail credentials (via file / registry access)
Yara detected Amadeys stealer DLL
Yara detected LummaC Stealer
Yara detected Powershell download and execute
Yara detected Stealc
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1551890 Sample: file.exe Startdate: 08/11/2024 Architecture: WINDOWS Score: 100 70 thumbystriw.store 2->70 72 presticitpo.store 2->72 74 4 other IPs or domains 2->74 110 Suricata IDS alerts for network traffic 2->110 112 Found malware configuration 2->112 114 Antivirus detection for URL or domain 2->114 116 13 other signatures 2->116 9 file.exe 38 2->9         started        14 skotes.exe 2->14         started        16 skotes.exe 2->16         started        18 msedge.exe 68 632 2->18         started        signatures3 process4 dnsIp5 76 185.215.113.206, 49699, 49751, 49833 WHOLESALECONNECTIONSNL Portugal 9->76 78 185.215.113.16, 49966, 80 WHOLESALECONNECTIONSNL Portugal 9->78 80 127.0.0.1 unknown unknown 9->80 54 C:\Users\user\DocumentsIDHIEGIIIE.exe, PE32 9->54 dropped 56 C:\ProgramData\nss3.dll, PE32 9->56 dropped 58 C:\Users\user\AppData\...\vcruntime140[1].dll, PE32 9->58 dropped 68 12 other files (none is malicious) 9->68 dropped 136 Detected unpacking (changes PE section rights) 9->136 138 Attempt to bypass Chrome Application-Bound Encryption 9->138 140 Drops PE files to the document folder of the user 9->140 148 9 other signatures 9->148 20 cmd.exe 9->20         started        22 msedge.exe 2 11 9->22         started        25 chrome.exe 9->25         started        82 185.215.113.43 WHOLESALECONNECTIONSNL Portugal 14->82 60 C:\Users\user\AppData\...\cbcb911ae5.exe, PE32 14->60 dropped 62 C:\Users\user\AppData\...\466342aeed.exe, PE32 14->62 dropped 64 C:\Users\user\AppData\Local\...\random[1].exe, PE32 14->64 dropped 66 C:\Users\user\AppData\Local\...\random[1].exe, PE32 14->66 dropped 142 Hides threads from debuggers 14->142 144 Tries to detect sandboxes / dynamic malware analysis system (registry check) 14->144 146 Tries to detect process monitoring tools (Task Manager, Process Explorer etc.) 14->146 28 cbcb911ae5.exe 14->28         started        30 msedge.exe 18->30         started        32 msedge.exe 18->32         started        34 msedge.exe 18->34         started        36 msedge.exe 18->36         started        file6 signatures7 process8 dnsIp9 38 DocumentsIDHIEGIIIE.exe 20->38         started        42 conhost.exe 20->42         started        118 Monitors registry run keys for changes 22->118 44 msedge.exe 22->44         started        84 192.168.2.7, 443, 49698, 49699 unknown unknown 25->84 86 239.255.255.250 unknown Reserved 25->86 46 chrome.exe 25->46         started        88 founpiuer.store 104.21.5.155 CLOUDFLARENETUS United States 28->88 120 Detected unpacking (changes PE section rights) 28->120 122 Tries to detect sandboxes and other dynamic analysis tools (window names) 28->122 124 Tries to evade debugger and weak emulator (self modifying code) 28->124 126 4 other signatures 28->126 90 13.107.246.57, 443, 49861, 49885 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 30->90 92 13.91.96.185, 443, 49872, 49893 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 30->92 94 22 other IPs or domains 30->94 signatures10 process11 dnsIp12 52 C:\Users\user\AppData\Local\...\skotes.exe, PE32 38->52 dropped 128 Detected unpacking (changes PE section rights) 38->128 130 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 38->130 132 Tries to evade debugger and weak emulator (self modifying code) 38->132 134 4 other signatures 38->134 49 skotes.exe 38->49         started        96 play.google.com 172.217.16.206, 443, 49723, 49743 GOOGLEUS United States 46->96 98 www.google.com 172.217.18.100, 443, 49700, 49704 GOOGLEUS United States 46->98 100 2 other IPs or domains 46->100 file13 signatures14 process15 signatures16 102 Detected unpacking (changes PE section rights) 49->102 104 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 49->104 106 Tries to evade debugger and weak emulator (self modifying code) 49->106 108 3 other signatures 49->108
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/4899660112f2e8f637d3236a7081ce7b53887651ed896712acda6509f473e439
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4899660112f2e8f637d3236a7081ce7b53887651ed896712acda6509f473e439/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Malicious
First seen:
2024-11-08 07:58:06 UTC
File Type:
PE (Exe)
AV detection:
22 of 24 (91.67%)
Threat level:
  2/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jcmwmais6lupmn6tenvhbaoopnjyq5sr5wewoevm3jsqt5dt4q4q._file
Verdict:
suspicious
Label(s):
stealc
Create hunting rule
Similar samples:
4899660112f2e8f637d3236a7081ce7b53887651ed896712acda6509f473e439
MarsStealer
error
MarsStealer
Result
Malware family:
stealc
Create hunting rule
Score:
  10/10
Tags:
family:stealc botnet:tale credential_access discovery evasion spyware stealer
Link:
https://tria.ge/reports/241108-jtt88syema/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of WriteProcessMemory
Browser Information Discovery
Program crash
System Location Discovery: System Language Discovery
Suspicious use of NtSetInformationThreadHideFromDebugger
Checks installed software on the system
Checks BIOS information in registry
Identifies Wine through registry keys
Loads dropped DLL
Reads user/profile data of web browsers
Uses browser remote debugging
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Stealc
Stealc family
Malware Config
C2 Extraction:
http://185.215.113.206
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/222a98e5-e03b-402c-8df3-f896c3ad2a00
Unpacked files
SH256 hash:
81a4f37c5495800b7cc46aea6535d9180dadb5c151db6f1fd1968d1cd8c1eeb4
MD5 hash:
eda18948a989176f4eebb175ce806255
SHA1 hash:
ff22a3d5f5fb705137f233c36622c79eab995897
Link:
https://www.unpac.me/results/d696c863-d493-4884-abb1-0704333e3b2f/
SH256 hash:
5dd94ee1b3f8dec41f6bd4d4de8665e605713b21d22f96a294f137153fce63d3
MD5 hash:
e49a719e9292f913b99af5c2d3168261
SHA1 hash:
df759b90c964aada834a6e9304fa2989fec082cd
Detections:
stealc
Create hunting rule
win_stealc_w0
Create hunting rule
win_stealc_a0
Create hunting rule
detect_Mars_Stealer
Create hunting rule
Link:
https://www.unpac.me/results/d696c863-d493-4884-abb1-0704333e3b2f/
SH256 hash:
4899660112f2e8f637d3236a7081ce7b53887651ed896712acda6509f473e439
MD5 hash:
f3a208d03776378776a9fdc3ce740ac9
SHA1 hash:
96464cb96d17ad6cd55aa3e143e9cbda3f4dc47d
Link:
https://www.unpac.me/results/d696c863-d493-4884-abb1-0704333e3b2f/
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/4899660112f2/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.75
Link:
https://yomi.yoroi.company/submissions/4899660112f2e8f637d3236a7081ce7b53887651ed896712acda6509f473e439

File information

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

Web download

MarsStealer

Executable exe 4899660112f2e8f637d3236a7081ce7b53887651ed896712acda6509f473e439

(this sample)

  
Dropped by
Amadey
  
Delivery method
Distributed via web download
  
Dropped by
Amadey
  
Delivery method
Distributed via web download
  
Dropped by
Amadey
  
Delivery method
Distributed via web download
  
Dropped by
Amadey
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3273391/
  
URLhaus
https://urlhaus.abuse.ch/url/3079150/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
CHECK_NXMissing Non-Executable Memory Protectioncritical

Comments