Analysis

  • max time kernel
    78s
  • max time network
    112s
  • platform
    windows10_x64
  • resource
    win10v200722
  • submitted
    08/09/2020, 07:43

General

  • Target
    9f34d4f248f8f1ff7c8f683f5c97ee7d.exe
  • Size 684KB
  • Sample200908-8em2q953he
  • SHA256 9c2978d525c68cceb114ea784ca6a6975dfee9ea7f2ac6aaebeb209a915524cb
  • 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: 2020.09.08 - 09:47:07 GMT Bot_ID: 18823CA4-5761-4226-8787-CF36135F1C68_Admin Running on a desktop =R=A=C=C=O=O=N= - Cookies: 0 - Passwords: 5 - Files: 0 System Information: - System Language: English - System TimeZone: -0 hrs - IP: 154.61.71.13 - Location: 37.750999, -97.821999 | ?, ?, United States (?) - ComputerName: LZUKLIOU - Username: Admin - Windows version: NT 10.0 - Product name: Windows 10 Pro - System arch: x64 - CPU: Persocon Processor 2.5+ (2 cores) - RAM: 4095 MB (716 MB used) - Screen resolution: 1280x720 - Display devices: 0) Microsoft Basic Display 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.

  • Loads dropped DLL 6 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
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Delays execution with timeout.exe 1 IoCs
  • Modifies data under HKEY_USERS 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9f34d4f248f8f1ff7c8f683f5c97ee7d.exe
    "C:\Users\Admin\AppData\Local\Temp\9f34d4f248f8f1ff7c8f683f5c97ee7d.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:408
    • C:\Users\Admin\AppData\Local\Temp\9f34d4f248f8f1ff7c8f683f5c97ee7d.exe
      "C:\Users\Admin\AppData\Local\Temp\9f34d4f248f8f1ff7c8f683f5c97ee7d.exe"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:3840
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\9f34d4f248f8f1ff7c8f683f5c97ee7d.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2620
        • C:\Windows\SysWOW64\timeout.exe
          timeout /T 10 /NOBREAK
          4⤵
          • Delays execution with timeout.exe
          PID:3172
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalService -s WinHttpAutoProxySvc
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Suspicious use of AdjustPrivilegeToken
    PID:2552

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/3840-0-0x0000000000400000-0x0000000000493000-memory.dmp

        memory/3840-2-0x0000000000400000-0x0000000000493000-memory.dmp