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Analysis

  • max time kernel
    43s
  • max time network
    91s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    20/02/2022, 07:47

General

  • Target

    478990938b7cae1f3266d232993c12265e8c8dcd4382ea381cf1e6cf6d21b350.exe

  • Size

    149KB

  • MD5

    5aeb82aba635623d8f0ff2536e0d1df2

  • SHA1

    bebe20f6aa1a0645575c67193de244976386536f

  • SHA256

    478990938b7cae1f3266d232993c12265e8c8dcd4382ea381cf1e6cf6d21b350

  • SHA512

    5c3339617780faaabae21efae457c6275345ade7b1c5d9f199f37fd23a107f2b92d34e7fe6f8d2baed8ddbb38a356e9416426bbe27f205b4bb2f9269593f3e37

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\DllHost.exe
    C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
    1⤵
      PID:3252
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
      1⤵
        PID:744
      • C:\Windows\system32\taskhostw.exe
        taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
        1⤵
          PID:2432
        • C:\Windows\system32\svchost.exe
          C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
          1⤵
            PID:2312
          • C:\Windows\system32\sihost.exe
            sihost.exe
            1⤵
              PID:2280
            • C:\Users\Admin\AppData\Local\Temp\478990938b7cae1f3266d232993c12265e8c8dcd4382ea381cf1e6cf6d21b350.exe
              "C:\Users\Admin\AppData\Local\Temp\478990938b7cae1f3266d232993c12265e8c8dcd4382ea381cf1e6cf6d21b350.exe"
              1⤵
              • Checks computer location settings
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:1436
              • 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\478990938b7cae1f3266d232993c12265e8c8dcd4382ea381cf1e6cf6d21b350.exe" /f
                2⤵
                • Suspicious use of WriteProcessMemory
                PID:1868
                • 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\478990938b7cae1f3266d232993c12265e8c8dcd4382ea381cf1e6cf6d21b350.exe" /f
                  3⤵
                  • Adds Run key to start application
                  PID:3976

            Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            • memory/2280-130-0x00007FF7BC680000-0x00007FF7BCA08000-memory.dmp

              Filesize

              3.5MB

            • memory/2312-131-0x00007FF7BC680000-0x00007FF7BCA08000-memory.dmp

              Filesize

              3.5MB