Analysis

  • max time kernel
    110s
  • max time network
    137s
  • platform
    windows10_x64
  • resource
    win10
  • submitted
    24/06/2020, 14:54

General

  • Target
    bb88bf7c6da2f971c9adc22f4aa99807.exe
  • Size 770KB
  • Sample200624-le8hp2zhdn
  • SHA256 0c34d4763fc968ccbe9f33dec2ae9e3e132a61b40ffc93cc22f337a0758c0279
  • MD5 SHA1 SHA512

Malware Config

Extracted

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

  • raccoon

Ransom Note
  • [Raccoon Stealer] - v1.5.11 Release Build compiled on Sat Jun 20 01:07:56 2020 Launched at: 2020.06.24 - 14:57:42 GMT Bot_ID: 664A9041-4AC4-46F3-B3DC-87DB4D57890E_Admin Running on a desktop =R=A=C=C=O=O=N= System Information: - System Language: English - System TimeZone: -0 hrs - IP: 154.61.71.51 - Location: 37.750999, -97.821999 | ?, ?, United States (?) - ComputerName: GOHCSFBB - 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 (688 MB used) - Screen resolution: 1280x720 - Display devices: 0) Microsoft Basic Display Adapter ============

Signatures

  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 3 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Executes dropped EXE 5 IoCs
  • Suspicious use of WriteProcessMemory 275 IoCs
  • Loads dropped DLL 8 IoCs
  • Raccoon log file 1 IoCs

    Detects a log file produced by the Raccoon Stealer.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Drops desktop.ini file(s) 1 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.

  • Checks for installed software on the system 1 TTPs 31 IoCs
  • Raccoon

    Simple but powerful infostealer which was very active in 2019.

  • Delays execution with timeout.exe 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bb88bf7c6da2f971c9adc22f4aa99807.exe
    "C:\Users\Admin\AppData\Local\Temp\bb88bf7c6da2f971c9adc22f4aa99807.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3932
    • C:\Users\Admin\AppData\Local\Temp\bb88bf7c6da2f971c9adc22f4aa99807.exe
      "{path}"
      2⤵
        PID:3860
      • C:\Users\Admin\AppData\Local\Temp\bb88bf7c6da2f971c9adc22f4aa99807.exe
        "{path}"
        2⤵
          PID:3904
        • C:\Users\Admin\AppData\Local\Temp\bb88bf7c6da2f971c9adc22f4aa99807.exe
          "{path}"
          2⤵
          • Suspicious use of WriteProcessMemory
          • Loads dropped DLL
          • Drops desktop.ini file(s)
          • Checks for installed software on the system
          PID:3936
          • C:\Users\Admin\AppData\Local\Temp\c6m2ggE5pG.exe
            "C:\Users\Admin\AppData\Local\Temp\c6m2ggE5pG.exe"
            3⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:1036
            • C:\Users\Admin\AppData\Local\Temp\c6m2ggE5pG.exe
              "C:\Users\Admin\AppData\Local\Temp\c6m2ggE5pG.exe"
              4⤵
              • Executes dropped EXE
              PID:3672
          • C:\Users\Admin\AppData\Local\Temp\7WqSMDy1vV.exe
            "C:\Users\Admin\AppData\Local\Temp\7WqSMDy1vV.exe"
            3⤵
            • Executes dropped EXE
            PID:1280
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 1280 -s 896
              4⤵
              • Program crash
              PID:852
          • C:\Users\Admin\AppData\Local\Temp\jALPDNYGI8.exe
            "C:\Users\Admin\AppData\Local\Temp\jALPDNYGI8.exe"
            3⤵
            • Executes dropped EXE
            PID:1492
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 1492 -s 896
              4⤵
              • Program crash
              PID:1012
          • C:\Users\Admin\AppData\Local\Temp\GRTw5K3D46.exe
            "C:\Users\Admin\AppData\Local\Temp\GRTw5K3D46.exe"
            3⤵
            • Executes dropped EXE
            PID:1736
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 1736 -s 896
              4⤵
              • Program crash
              PID:908
          • C:\Windows\SysWOW64\cmd.exe
            cmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\bb88bf7c6da2f971c9adc22f4aa99807.exe"
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:1844
            • C:\Windows\SysWOW64\timeout.exe
              timeout /T 10 /NOBREAK
              4⤵
              • Delays execution with timeout.exe
              PID:2104

      Network

            MITRE ATT&CK Enterprise v6

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            Downloads

            memory/1012-86-0x0000000004D00000-0x0000000004D01000-memory.dmp

            memory/3936-0-0x0000000000400000-0x0000000000493000-memory.dmp

            memory/3936-2-0x0000000000400000-0x0000000000493000-memory.dmp