General

  • Target

    FILE_DOC_SSLMUNSRG0014624PC.html

  • Size

    1.4MB

  • Sample

    240916-qchbnsyfkf

  • MD5

    5e818b55b794edaad0ec09c72bfac4f1

  • SHA1

    b0d280f693b2f36ddc4dd2911d2129bb80099f9c

  • SHA256

    61aef85e41f9b217a904c5642b44402fd812822958e1d40092a579b589beecdc

  • SHA512

    c52b86698d7b7c4740af8af5e9f1068b4cbfd7988735f09eeb472c2ef7c93fd2c488dc13b3f28ceba19f1e3971b4972a220ec0ebb5e465ae139f6c3b728e78f9

  • SSDEEP

    6144:hUUfHkoqQfM8UuNZm65ay567QCMZMWZBxxBXX/lNSKZrbgOh7m:hUWCGMM567c7FS1

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

https://ia601606.us.archive.org/10/items/deathnote_202407/deathnote.jpg

exe.dropper

https://ia601606.us.archive.org/10/items/deathnote_202407/deathnote.jpg

Extracted

Family

remcos

Botnet

pc file

C2

185.150.191.117:4609

Attributes
  • audio_folder

    MicRecords

  • audio_record_time

    5

  • connect_delay

    0

  • connect_interval

    1

  • copy_file

    remcos.exe

  • copy_folder

    Remcos

  • delete_file

    false

  • hide_file

    false

  • hide_keylog_file

    false

  • install_flag

    false

  • keylog_crypt

    false

  • keylog_file

    logs.dat

  • keylog_flag

    false

  • keylog_folder

    remcos

  • mouse_option

    false

  • mutex

    Rmc-PICFH2

  • screenshot_crypt

    false

  • screenshot_flag

    false

  • screenshot_folder

    Screenshots

  • screenshot_path

    %AppData%

  • screenshot_time

    10

  • take_screenshot_option

    false

  • take_screenshot_time

    5

Targets

    • Target

      FILE_DOC_SSLMUNSRG0014624PC.html

    • Size

      1.4MB

    • MD5

      5e818b55b794edaad0ec09c72bfac4f1

    • SHA1

      b0d280f693b2f36ddc4dd2911d2129bb80099f9c

    • SHA256

      61aef85e41f9b217a904c5642b44402fd812822958e1d40092a579b589beecdc

    • SHA512

      c52b86698d7b7c4740af8af5e9f1068b4cbfd7988735f09eeb472c2ef7c93fd2c488dc13b3f28ceba19f1e3971b4972a220ec0ebb5e465ae139f6c3b728e78f9

    • SSDEEP

      6144:hUUfHkoqQfM8UuNZm65ay567QCMZMWZBxxBXX/lNSKZrbgOh7m:hUWCGMM567c7FS1

    • Remcos

      Remcos is a closed-source remote control and surveillance software.

    • Credentials from Password Stores: Credentials from Web Browsers

      Malicious Access or copy of Web Browser Credential store.

    • Detected Nirsoft tools

      Free utilities often used by attackers which can steal passwords, product keys, etc.

    • NirSoft MailPassView

      Password recovery tool for various email clients

    • NirSoft WebBrowserPassView

      Password recovery tool for various web browsers

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Accesses Microsoft Outlook accounts

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks