Analysis

  • max time kernel
    41s
  • max time network
    110s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    20-02-2022 03:59

General

  • Target

    9e8f01b3fb2513649da36630fd7d20a2b87d11d5ec2e1f151498fd879d0d6d39.exe

  • Size

    170KB

  • MD5

    26f3ee3f591b0d3a267d8b1ac6ffd59c

  • SHA1

    e4f263ef3beb7e77ade5225c9d1e7d24bab668d0

  • SHA256

    9e8f01b3fb2513649da36630fd7d20a2b87d11d5ec2e1f151498fd879d0d6d39

  • SHA512

    aaae22bf758fbf8fe707ad0ee6d9e30421924461be1470d1232d8c20b404310070175f2f59db84f0d31220e5198c2290012fe18c25a005d02bcb6bf3921b10cb

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\svchost.exe
    C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
    1⤵
      PID:2288
    • 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\taskhostw.exe
          taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
          1⤵
            PID:2412
          • C:\Windows\system32\sihost.exe
            sihost.exe
            1⤵
              PID:2268
            • C:\Users\Admin\AppData\Local\Temp\9e8f01b3fb2513649da36630fd7d20a2b87d11d5ec2e1f151498fd879d0d6d39.exe
              "C:\Users\Admin\AppData\Local\Temp\9e8f01b3fb2513649da36630fd7d20a2b87d11d5ec2e1f151498fd879d0d6d39.exe"
              1⤵
              • Checks computer location settings
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:5044
              • 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\9e8f01b3fb2513649da36630fd7d20a2b87d11d5ec2e1f151498fd879d0d6d39.exe" /f
                2⤵
                • Suspicious use of WriteProcessMemory
                PID:1260
                • 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\9e8f01b3fb2513649da36630fd7d20a2b87d11d5ec2e1f151498fd879d0d6d39.exe" /f
                  3⤵
                  • Adds Run key to start application
                  PID:4696

            Network

            MITRE ATT&CK Matrix ATT&CK v6

            Persistence

            Registry Run Keys / Startup Folder

            1
            T1060

            Defense Evasion

            Modify Registry

            1
            T1112

            Discovery

            Query Registry

            1
            T1012

            System Information Discovery

            2
            T1082

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • memory/2268-130-0x00007FF639490000-0x00007FF63981E000-memory.dmp
              Filesize

              3.6MB

            • memory/2660-131-0x00007FF639490000-0x00007FF63981E000-memory.dmp
              Filesize

              3.6MB