Analysis

  • max time kernel
    56s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7v200722
  • submitted
    02/09/2020, 00:37

General

  • Target
    c7f6e7.exe
  • Size 496KB
  • Sample200902-83fyxph2ba
  • SHA256 c91e2df02ad2c8ccadc96054bceee4422382caa62d443e2633a003e4ce5c7476
  • MD5 SHA1 SHA512

Malware Config

Extracted

Path
  • C:\Users\Admin\AppData\LocalLow\machineinfo.txt

  • raccoon

Ransom Note
  • [Raccoon Stealer] - v1.5.13-af-hotfix Release Build compiled on Mon Jul 6 14:33:03 2020 Launched at: 2020.09.02 - 02:34:15 GMT Bot_ID: 750D7400-3B08-415E-A8B0-2695D81425F5_Admin Running on a desktop =R=A=C=C=O=O=N= - Cookies: 0 - Passwords: 0 - Files: 0 System Information: - System Language: English - System TimeZone: -0 hrs - IP: 154.61.71.13 - Location: 37.750999, -97.821999 | ?, ?, United States (?) - ComputerName: UCQFZDUI - Username: Admin - Windows version: NT 6.1 - Product name: Windows 7 Professional - System arch: x64 - CPU: Persocon Processor 2.5+ (2 cores) - RAM: 2047 MB (415 MB used) - Screen resolution: 1280x720 - Display devices: 0) Standard VGA Graphics Adapter ============

Signatures

  • Raccoon

    Simple but powerful infostealer which was very active in 2019.

  • Raccoon log file 1 IoCs

    Detects a log file produced by the Raccoon Stealer.

  • Deletes itself 1 IoCs
  • Loads dropped DLL 8 IoCs
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • JavaScript code in executable 1 IoCs
  • Delays execution with timeout.exe 1 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c7f6e7.exe
    "C:\Users\Admin\AppData\Local\Temp\c7f6e7.exe"
    1⤵
    • Loads dropped DLL
    • Modifies system certificate store
    • Suspicious use of WriteProcessMemory
    PID:1464
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\c7f6e7.exe"
      2⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:1328
      • C:\Windows\SysWOW64\timeout.exe
        timeout /T 10 /NOBREAK
        3⤵
        • Delays execution with timeout.exe
        PID:928

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1464-0-0x0000000000A7A000-0x0000000000A7B000-memory.dmp

        memory/1464-1-0x0000000000D60000-0x0000000000D71000-memory.dmp

        memory/1620-2-0x000007FEF76E0000-0x000007FEF795A000-memory.dmp