MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5fbd8e4ffc78a356b36ec503ab14de9c6eb85d4dc5ac371a310903d9b1fdb696. 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 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5fbd8e4ffc78a356b36ec503ab14de9c6eb85d4dc5ac371a310903d9b1fdb696
SHA3-384 hash: 6e88b0d4bdba6123749ae3ba5d9399e16288867e366982acaa25089787eeb23a9857e74b3790d660b091a8f37a0b4a57
SHA1 hash: 0ffe2565644a3f6488ede1eca0ea726f16bf49d6
MD5 hash: b21ddd26d50a4a26e5975dc863e83b9d
humanhash: gee-undress-mango-missouri
File name:file
Download: download sample
Signature MarsStealer
Create hunting rule
File size:2'123'264 bytes
First seen:2024-11-08 16:25:39 UTC
Last seen:2024-11-08 16:30:08 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:cmtqd0RF0dNbMf8J2PhZMUE5lWSHUdrAhgbV6bw:0d00b46U6x0+hgbg
TLSH T192A533324E3E1C6FD0C5D17786D8D6D9674123BA8E8921A2D51376CCB623E08B066FDE
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 :
30
# of downloads :
2'525
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2024-11-08 16:28:25 UTC
Tags:
possible-phishing lumma stealer themida loader stealc
Link:
https://app.any.run/tasks/e4033526-80d9-46b1-b00c-d7669afed2e9

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
97.4%
Link:
https://cyber-fortress.com/docs/result/index.php?id=672e3bcaa5bee3c9d42be0c8
Tags:
vmdetect autorun spam lien
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Searching for analyzing tools
Searching for the window
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/672e3b9c90de01255258c48d/reports/f0dce775-6e70-492e-9f41-414e93f10d74/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/5fbd8e4ffc78a356b36ec503ab14de9c6eb85d4dc5ac371a310903d9b1fdb696
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/35bbce75-b4ad-4b65-a3db-2aed4823df9e
Result
Threat name:
Amadey, Stealc, Vidar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1552378
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
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
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 Powershell download and execute
Yara detected Stealc
Yara detected Vidar stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1552378 Sample: file.exe Startdate: 08/11/2024 Architecture: WINDOWS Score: 100 83 Suricata IDS alerts for network traffic 2->83 85 Found malware configuration 2->85 87 Antivirus detection for URL or domain 2->87 89 11 other signatures 2->89 8 file.exe 38 2->8         started        13 skotes.exe 2->13         started        15 skotes.exe 2->15         started        17 msedge.exe 637 2->17         started        process3 dnsIp4 59 185.215.113.206, 49704, 49737, 49829 WHOLESALECONNECTIONSNL Portugal 8->59 61 185.215.113.16 WHOLESALECONNECTIONSNL Portugal 8->61 63 127.0.0.1 unknown unknown 8->63 51 C:\Users\user\DocumentsFHIIEHJKKE.exe, PE32 8->51 dropped 53 C:\ProgramData\nss3.dll, PE32 8->53 dropped 55 C:\Users\user\AppData\...\vcruntime140[1].dll, PE32 8->55 dropped 57 12 other files (none is malicious) 8->57 dropped 101 Detected unpacking (changes PE section rights) 8->101 103 Attempt to bypass Chrome Application-Bound Encryption 8->103 105 Drops PE files to the document folder of the user 8->105 119 8 other signatures 8->119 19 cmd.exe 8->19         started        21 msedge.exe 2 10 8->21         started        24 chrome.exe 8 8->24         started        107 Tries to detect sandboxes and other dynamic analysis tools (window names) 13->107 109 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 13->109 111 Tries to evade debugger and weak emulator (self modifying code) 13->111 65 185.215.113.43 WHOLESALECONNECTIONSNL Portugal 15->65 113 Hides threads from debuggers 15->113 115 Tries to detect sandboxes / dynamic malware analysis system (registry check) 15->115 117 Tries to detect process monitoring tools (Task Manager, Process Explorer etc.) 15->117 27 msedge.exe 17->27         started        29 msedge.exe 17->29         started        31 msedge.exe 17->31         started        33 msedge.exe 17->33         started        file5 signatures6 process7 dnsIp8 35 DocumentsFHIIEHJKKE.exe 19->35         started        39 conhost.exe 19->39         started        99 Monitors registry run keys for changes 21->99 41 msedge.exe 21->41         started        67 192.168.2.5, 443, 49703, 49704 unknown unknown 24->67 69 239.255.255.250 unknown Reserved 24->69 43 chrome.exe 24->43         started        71 s-part-0017.t-0009.t-msedge.net 13.107.246.45, 443, 49735, 49739 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 27->71 73 13.107.246.57, 443, 49838, 49863 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 27->73 75 27 other IPs or domains 27->75 signatures9 process10 dnsIp11 49 C:\Users\user\AppData\Local\...\skotes.exe, PE32 35->49 dropped 91 Detected unpacking (changes PE section rights) 35->91 93 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 35->93 95 Tries to evade debugger and weak emulator (self modifying code) 35->95 97 4 other signatures 35->97 46 skotes.exe 35->46         started        77 plus.l.google.com 142.250.186.174, 443, 49724 GOOGLEUS United States 43->77 79 www.google.com 172.217.16.132, 443, 49708, 49709 GOOGLEUS United States 43->79 81 2 other IPs or domains 43->81 file12 signatures13 process14 signatures15 121 Hides threads from debuggers 46->121 123 Tries to detect sandboxes / dynamic malware analysis system (registry check) 46->123 125 Tries to detect process monitoring tools (Task Manager, Process Explorer etc.) 46->125
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/5fbd8e4ffc78a356b36ec503ab14de9c6eb85d4dc5ac371a310903d9b1fdb696
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/5fbd8e4ffc78a356b36ec503ab14de9c6eb85d4dc5ac371a310903d9b1fdb696/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2024-11-08 16:26:13 UTC
File Type:
PE (Exe)
AV detection:
18 of 38 (47.37%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=l66y4t74pcrvnm3oyub2wfg6trxlqxknywwdogrrbeb5tmp5w2la._file
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-txlflsvhqp/
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/76c6052b-081e-47f5-86ed-4b8bb739c632
Unpacked files
SH256 hash:
81a4f37c5495800b7cc46aea6535d9180dadb5c151db6f1fd1968d1cd8c1eeb4
MD5 hash:
eda18948a989176f4eebb175ce806255
SHA1 hash:
ff22a3d5f5fb705137f233c36622c79eab995897
Link:
https://www.unpac.me/results/d0a01ebd-10f7-42fc-96cb-2fe965739882/
SH256 hash:
1c7919895124fbca79327bc1a82ef8799c33d8a1cba7febd54f9dfb92d1c06d1
MD5 hash:
51f90bb8d177130a295e4fb5afd76242
SHA1 hash:
80348a8e03b81e50b76649d88ab47636728c2d7a
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/d0a01ebd-10f7-42fc-96cb-2fe965739882/
SH256 hash:
5fbd8e4ffc78a356b36ec503ab14de9c6eb85d4dc5ac371a310903d9b1fdb696
MD5 hash:
b21ddd26d50a4a26e5975dc863e83b9d
SHA1 hash:
0ffe2565644a3f6488ede1eca0ea726f16bf49d6
Link:
https://www.unpac.me/results/d0a01ebd-10f7-42fc-96cb-2fe965739882/
Malware family:
Stealc
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/5fbd8e4ffc78/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/5fbd8e4ffc78a356b36ec503ab14de9c6eb85d4dc5ac371a310903d9b1fdb696

File information

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

Web download

MarsStealer

Executable exe 5fbd8e4ffc78a356b36ec503ab14de9c6eb85d4dc5ac371a310903d9b1fdb696

(this sample)

  
Dropped by
Amadey
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/3079150/
  
URLhaus
https://urlhaus.abuse.ch/url/3279845/

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