Analysis

  • max time kernel
    46s
  • max time network
    124s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    20-02-2022 08:04

General

  • Target

    413bd0bab52129e4bafc343c40b16f47771eb154ebb13d415211ac5067cef4b7.exe

  • Size

    351KB

  • MD5

    efd0d3409e5e7ffe94f931ff6f09035e

  • SHA1

    c7830b5cadb9320bc8b9876d84acb4e13f90434a

  • SHA256

    413bd0bab52129e4bafc343c40b16f47771eb154ebb13d415211ac5067cef4b7

  • SHA512

    a60fa47ed884327adf98c3ed3e67cf0149678f6c2cf74c3c6c627e579067ad4636afe122fd246fbf0613889af46a096d3656932a4bcad52a12803ff0950b9386

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 2 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 11 IoCs

Processes

  • C:\Windows\system32\DllHost.exe
    C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
    1⤵
      PID:3240
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k ClipboardSvcGroup -p -s cbdhsvc
      1⤵
        PID:764
      • C:\Windows\system32\taskhostw.exe
        taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
        1⤵
          PID:2416
        • C:\Windows\system32\svchost.exe
          C:\Windows\system32\svchost.exe -k UnistackSvcGroup -s CDPUserSvc
          1⤵
            PID:2324
          • C:\Windows\system32\sihost.exe
            sihost.exe
            1⤵
              PID:2288
            • C:\Users\Admin\AppData\Local\Temp\413bd0bab52129e4bafc343c40b16f47771eb154ebb13d415211ac5067cef4b7.exe
              "C:\Users\Admin\AppData\Local\Temp\413bd0bab52129e4bafc343c40b16f47771eb154ebb13d415211ac5067cef4b7.exe"
              1⤵
              • Checks computer location settings
              • Suspicious use of WriteProcessMemory
              PID:4860
              • C:\users\Public\eTvVE.exe
                "C:\users\Public\eTvVE.exe" C:\Users\Admin\AppData\Local\Temp\413bd0bab52129e4bafc343c40b16f47771eb154ebb13d415211ac5067cef4b7.exe
                2⤵
                • Executes dropped EXE
                • Checks computer location settings
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of WriteProcessMemory
                PID:1520
                • 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\Public\eTvVE.exe" /f
                  3⤵
                  • Suspicious use of WriteProcessMemory
                  PID:4688
                  • C:\Windows\system32\reg.exe
                    REG ADD "HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "svchos" /t REG_SZ /d "C:\users\Public\eTvVE.exe" /f
                    4⤵
                    • Adds Run key to start application
                    PID:3108

            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

            • C:\Users\Public\eTvVE.exe
              MD5

              c5609ab395ee733f889c28d9f93f2af3

              SHA1

              ee4099fc9381c45aaa32505521a8dbc1daf3ff78

              SHA256

              1659503da5d0318c6025ea87b125b4917d53f4f666461b42d7cc2552ac2b3992

              SHA512

              39fa80bc077b24b1f8814b19722613b472343dded1fd14b1231e11a6b03c2ae477db2f787a4f2d72b39b611c2070ad833068e2e01fd18e9cab257414e2ce1caf

            • C:\users\Public\eTvVE.exe
              MD5

              c5609ab395ee733f889c28d9f93f2af3

              SHA1

              ee4099fc9381c45aaa32505521a8dbc1daf3ff78

              SHA256

              1659503da5d0318c6025ea87b125b4917d53f4f666461b42d7cc2552ac2b3992

              SHA512

              39fa80bc077b24b1f8814b19722613b472343dded1fd14b1231e11a6b03c2ae477db2f787a4f2d72b39b611c2070ad833068e2e01fd18e9cab257414e2ce1caf

            • memory/764-134-0x00007FF601DA0000-0x00007FF60212A000-memory.dmp
              Filesize

              3.5MB

            • memory/2288-133-0x00007FF601DA0000-0x00007FF60212A000-memory.dmp
              Filesize

              3.5MB