MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3c6a2a2899115e1071360a6f8a282e0e1c6dac8be6ba66b72b92fae857a08bfd. 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



MassLogger


Vendor detections: 12


Intelligence 12 IOCs YARA File information Comments

SHA256 hash: 3c6a2a2899115e1071360a6f8a282e0e1c6dac8be6ba66b72b92fae857a08bfd
SHA3-384 hash: 52c6c98a0a55392337ad3e9864912c190cb2354d5304f9ebca5593a7342a8cb69f470fe4826fba192a1f3cd59c95313c
SHA1 hash: 471ebb9d1f637b0814ccb3eda1af92fad8999541
MD5 hash: 5396b1afb5dbdcb82b31725509a1c655
humanhash: montana-nuts-tennessee-colorado
File name:нарачкапроформа фактура pdf.js
Download: download sample
Signature MassLogger
File size:243'032 bytes
First seen:2025-09-09 14:40:21 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 384:u9MLFUj3mKSlT6OsM53LW9LbDTcwJIf/AAMAAtAAW3ZUx1AyETnlgAjuomAATafk:nALvTcwJIibxKUIzY7VjJ4Vlpa
Threatray 1'651 similar samples on MalwareBazaar
TLSH T15D34EF046E43487406F3231A6A3E0E21E861772B4416CA7B34FF8A787F74AA49F7DD95
Magika javascript
Reporter aachum
Tags:js MassLogger MKD


Avatar
iamaachum
MassLogger Config:
exfiltration_mode
#SMTPEnabled
expire_time_date
2025-08-30
host_password
erunski222
host_port
587
host_receiver
erunski333@groundella.xyz
host_sender
erunski222@groundella.xyz
host_server
mail.privateemail.com
ssl_slate
True

Other IOCs:
https://archive.org/download/optimized_msi_20250904/optimized_MSI.png
http://nextasia.info/luu99.txt

Intelligence


File Origin
# of uploads :
1
# of downloads :
147
Origin country :
ES ES
Vendor Threat Intelligence
Verdict:
Malicious
Score:
99.1%
Tags:
obfuscate cryxos xtreme virus
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
anti-vm powershell
Verdict:
Malicious
File Type:
js
First seen:
2025-09-09T18:30:00Z UTC
Last seen:
2025-09-09T18:30:00Z UTC
Hits:
~10
Detections:
HEUR:Trojan-Downloader.Script.Generic HEUR:Trojan.Script.Generic Trojan.JS.SAgent.sb Trojan.Agentb.TCP.C&C
Result
Threat name:
MSIL Logger, MassLogger RAT
Detection:
malicious
Classification:
spre.troj.spyw.expl.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
Creates processes via WMI
Found malware configuration
Found Tor onion address
Injects a PE file into a foreign processes
Javascript file is likely language aware (will only work on specific systems)
JavaScript source code contains functionality to generate code involving a shell, file or stream
Joe Sandbox ML detected suspicious sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: RegAsm connects to smtp port
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Suspicious powershell command line found
Tries to detect the country of the analysis system (by using the IP)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected MassLogger RAT
Yara detected MSIL Logger
Yara detected Powershell download and execute
Yara detected Telegram RAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1774048 Sample: 30#U043f#U0440#U043e#U0444#... Startdate: 09/09/2025 Architecture: WINDOWS Score: 100 24 reallyfreegeoip.org 2->24 26 nextasia.info 2->26 28 5 other IPs or domains 2->28 44 Suricata IDS alerts for network traffic 2->44 46 Found malware configuration 2->46 48 Malicious sample detected (through community Yara rule) 2->48 52 13 other signatures 2->52 8 wscript.exe 1 2->8         started        11 svchost.exe 1 1 2->11         started        signatures3 50 Tries to detect the country of the analysis system (by using the IP) 24->50 process4 dnsIp5 58 Suspicious powershell command line found 8->58 60 Wscript starts Powershell (via cmd or directly) 8->60 62 Windows Scripting host queries suspicious COM object (likely to drop second stage) 8->62 64 2 other signatures 8->64 14 powershell.exe 14 16 8->14         started        36 127.0.0.1 unknown unknown 11->36 signatures6 process7 dnsIp8 38 nextasia.info 206.189.145.62, 49703, 80 DIGITALOCEAN-ASNUS United States 14->38 40 archive.org 207.241.224.2, 443, 49692 INTERNET-ARCHIVEUS United States 14->40 42 ia802909.us.archive.org 207.241.233.59, 443, 49693 INTERNET-ARCHIVEUS United States 14->42 66 Found Tor onion address 14->66 68 Writes to foreign memory regions 14->68 70 Suspicious execution chain found 14->70 72 Injects a PE file into a foreign processes 14->72 18 RegAsm.exe 15 2 14->18         started        22 conhost.exe 14->22         started        signatures9 process10 dnsIp11 30 checkip.dyndns.com 132.226.8.169, 49704, 80 UTMEMUS United States 18->30 32 mail.privateemail.com 198.54.122.135, 49707, 587 NAMECHEAP-NETUS United States 18->32 34 reallyfreegeoip.org 104.21.96.1, 443, 49706 CLOUDFLARENETUS United States 18->34 54 Tries to steal Mail credentials (via file / registry access) 18->54 56 Tries to harvest and steal browser information (history, passwords, etc) 18->56 signatures12
Gathering data
Threat name:
Script-JS.Trojan.Cryxos
Status:
Malicious
First seen:
2025-09-09 14:08:58 UTC
File Type:
Binary
AV detection:
7 of 24 (29.17%)
Threat level:
  5/5
Result
Malware family:
masslogger
Score:
  10/10
Tags:
family:masslogger collection discovery execution spyware stealer
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Command and Scripting Interpreter: JavaScript
System Location Discovery: System Language Discovery
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Looks up external IP address via web service
Reads user/profile data of local email clients
Reads user/profile data of web browsers
Badlisted process makes network request
Command and Scripting Interpreter: PowerShell
MassLogger
Masslogger family
Process spawned unexpected child process
Malware Config
Dropper Extraction:
https://archive.org/download/optimized_msi_20250904/optimized_MSI.png
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


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

Malspam

MassLogger

Java Script (JS) js 3c6a2a2899115e1071360a6f8a282e0e1c6dac8be6ba66b72b92fae857a08bfd

(this sample)

  
Delivery method
Distributed via e-mail attachment

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