Analysis

  • max time kernel
    45s
  • max time network
    60s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    20-02-2022 03:30

General

  • Target

    aa356e1d445cca768a71f037d6a0111e613213bf2fd67fffdeae346001143bf6.exe

  • Size

    170KB

  • MD5

    0e53108935aa122b8faeda0de6fae8bd

  • SHA1

    fd7491b116e3695b832c171b6c003773fa95342b

  • SHA256

    aa356e1d445cca768a71f037d6a0111e613213bf2fd67fffdeae346001143bf6

  • SHA512

    df74ad57514cf8866a738f7ab3058a51f3ca7450bc63affc0ff05facc1e43e5d19dc1f23daa0ec7fc03312eacff2ff9e1233e6e420935365a260babc93d0d3d4

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Windows\system32\taskhostw.exe
    taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
    1⤵
      PID:2412
    • C:\Windows\system32\DllHost.exe
      C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
      1⤵
        PID:3204
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
        1⤵
          PID:2660
        • C:\Windows\system32\svchost.exe
          C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
          1⤵
            PID:2288
          • C:\Windows\system32\sihost.exe
            sihost.exe
            1⤵
              PID:2268
            • C:\Users\Admin\AppData\Local\Temp\aa356e1d445cca768a71f037d6a0111e613213bf2fd67fffdeae346001143bf6.exe
              "C:\Users\Admin\AppData\Local\Temp\aa356e1d445cca768a71f037d6a0111e613213bf2fd67fffdeae346001143bf6.exe"
              1⤵
              • Checks computer location settings
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:4632
              • C:\Windows\System32\cmd.exe
                "C:\Windows\System32\cmd.exe" /C REG ADD "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "svchos" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\aa356e1d445cca768a71f037d6a0111e613213bf2fd67fffdeae346001143bf6.exe" /f
                2⤵
                • Suspicious use of WriteProcessMemory
                PID:1400
                • C:\Windows\system32\reg.exe
                  REG ADD "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "svchos" /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\aa356e1d445cca768a71f037d6a0111e613213bf2fd67fffdeae346001143bf6.exe" /f
                  3⤵
                  • Adds Run key to start application
                  PID:1076

            Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            • memory/2268-130-0x00007FF700FF0000-0x00007FF70137E000-memory.dmp

              Filesize

              3.6MB

            • memory/2660-131-0x00007FF700FF0000-0x00007FF70137E000-memory.dmp

              Filesize

              3.6MB