Analysis

  • max time kernel
    129s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-11-2022 13:07

General

  • Target

    89caaf48d98052efd16194c60017beac31946b906aa29a564a96b9af5b5b189f.exe

  • Size

    334KB

  • MD5

    0efd3a0125f336e49c14d2a87dc22802

  • SHA1

    05339ba9a1c955e176ae52deb35f72df10b7803f

  • SHA256

    89caaf48d98052efd16194c60017beac31946b906aa29a564a96b9af5b5b189f

  • SHA512

    879ad312a299123556f5b6e254223c85b6e321f52c08aed4c9a1f9470314d22e25a68c983d57fa4019f4f78350ad194569bdf39dfa76f1779751d1b5d9f1810d

  • SSDEEP

    6144:gDCwfG1bnxG8M58+DCwfG1bnxG8M58FqvA:g72bnI55X72bnI55cqvA

Score
10/10

Malware Config

Signatures

  • Modifies visibility of file extensions in Explorer 2 TTPs 3 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 3 IoCs
  • Adds policy Run key to start application 2 TTPs 6 IoCs
  • Executes dropped EXE 6 IoCs
  • Checks computer location settings 2 TTPs 3 IoCs

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

  • Adds Run key to start application 2 TTPs 6 IoCs
  • Drops file in Windows directory 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 4 IoCs
  • Modifies registry key 1 TTPs 9 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 63 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\89caaf48d98052efd16194c60017beac31946b906aa29a564a96b9af5b5b189f.exe
    "C:\Users\Admin\AppData\Local\Temp\89caaf48d98052efd16194c60017beac31946b906aa29a564a96b9af5b5b189f.exe"
    1⤵
    • Modifies visibility of file extensions in Explorer
    • Modifies visiblity of hidden/system files in Explorer
    • Adds Run key to start application
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4812
    • C:\Windows\SysWOW64\REG.exe
      REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
      2⤵
      • Modifies registry key
      PID:4904
    • C:\Users\Admin\AppData\Local\Temp\avscan.exe
      C:\Users\Admin\AppData\Local\Temp\avscan.exe
      2⤵
      • Modifies visibility of file extensions in Explorer
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Windows directory
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2160
      • C:\Users\Admin\AppData\Local\Temp\avscan.exe
        C:\Users\Admin\AppData\Local\Temp\avscan.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:4588
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c c:\windows\W_X_C.bat
        3⤵
        • Checks computer location settings
        • Modifies registry class
        • Suspicious use of WriteProcessMemory
        PID:2156
        • C:\windows\hosts.exe
          C:\windows\hosts.exe
          4⤵
          • Modifies visibility of file extensions in Explorer
          • Modifies visiblity of hidden/system files in Explorer
          • Executes dropped EXE
          • Adds Run key to start application
          • Drops file in Windows directory
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:4244
          • C:\Users\Admin\AppData\Local\Temp\avscan.exe
            C:\Users\Admin\AppData\Local\Temp\avscan.exe
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetWindowsHookEx
            PID:5048
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c c:\windows\W_X_C.bat
            5⤵
            • Checks computer location settings
            • Modifies registry class
            • Suspicious use of WriteProcessMemory
            PID:740
            • C:\windows\hosts.exe
              C:\windows\hosts.exe
              6⤵
              • Executes dropped EXE
              • Suspicious use of SetWindowsHookEx
              PID:1272
            • C:\Windows\SysWOW64\WScript.exe
              "C:\Windows\System32\WScript.exe" "C:\Windows\W_X_C.vbs"
              6⤵
              • Adds policy Run key to start application
              PID:1832
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:1308
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:4484
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:4172
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:2124
        • C:\Windows\SysWOW64\WScript.exe
          "C:\Windows\System32\WScript.exe" "C:\Windows\W_X_C.vbs"
          4⤵
          • Adds policy Run key to start application
          PID:1344
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:1264
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:3672
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:4400
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:4192
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c c:\windows\W_X_C.bat
      2⤵
      • Checks computer location settings
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:3808
      • C:\windows\hosts.exe
        C:\windows\hosts.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:5068
      • C:\Windows\SysWOW64\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Windows\W_X_C.vbs"
        3⤵
        • Adds policy Run key to start application
        PID:2372
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:4440

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\avscan.exe

      Filesize

      334KB

      MD5

      6b33e617d0f070b0ed4c14bd19ce0b35

      SHA1

      bf16b4be0fc0f28123cd54093e62c5f7e75ea555

      SHA256

      fe58c806cfed24c69dc334c8a2c4feb3548d0e9ba297f962f2780081e8ad669c

      SHA512

      c414d74b86e5d2de155ba37568542ae9c3115e0f9658aafa59324b70a27a9eb1689ca791b5f0bd5f25d90cd78ef908279dbdffa4478674a8139a8713f0b26802

    • C:\Users\Admin\AppData\Local\Temp\avscan.exe

      Filesize

      334KB

      MD5

      6b33e617d0f070b0ed4c14bd19ce0b35

      SHA1

      bf16b4be0fc0f28123cd54093e62c5f7e75ea555

      SHA256

      fe58c806cfed24c69dc334c8a2c4feb3548d0e9ba297f962f2780081e8ad669c

      SHA512

      c414d74b86e5d2de155ba37568542ae9c3115e0f9658aafa59324b70a27a9eb1689ca791b5f0bd5f25d90cd78ef908279dbdffa4478674a8139a8713f0b26802

    • C:\Users\Admin\AppData\Local\Temp\avscan.exe

      Filesize

      334KB

      MD5

      6b33e617d0f070b0ed4c14bd19ce0b35

      SHA1

      bf16b4be0fc0f28123cd54093e62c5f7e75ea555

      SHA256

      fe58c806cfed24c69dc334c8a2c4feb3548d0e9ba297f962f2780081e8ad669c

      SHA512

      c414d74b86e5d2de155ba37568542ae9c3115e0f9658aafa59324b70a27a9eb1689ca791b5f0bd5f25d90cd78ef908279dbdffa4478674a8139a8713f0b26802

    • C:\Users\Admin\AppData\Local\Temp\avscan.exe

      Filesize

      334KB

      MD5

      6b33e617d0f070b0ed4c14bd19ce0b35

      SHA1

      bf16b4be0fc0f28123cd54093e62c5f7e75ea555

      SHA256

      fe58c806cfed24c69dc334c8a2c4feb3548d0e9ba297f962f2780081e8ad669c

      SHA512

      c414d74b86e5d2de155ba37568542ae9c3115e0f9658aafa59324b70a27a9eb1689ca791b5f0bd5f25d90cd78ef908279dbdffa4478674a8139a8713f0b26802

    • C:\Windows\W_X_C.vbs

      Filesize

      195B

      MD5

      0e0483d4802632100b6bfe8bc2e5d661

      SHA1

      767e0deb7dcaa7676004e6053957c36cecfeeefa

      SHA256

      81bbebb8d0e77ffffbc7b7d24afdcdce4089f4b04d1a12284eda861c25e03f9f

      SHA512

      8279b0559ca30a0adc6c8614870c3e445866c20f0617a7153cab41982b451dfe9ea44478f37b884465235714623ef26a56f5ea3d1cb81767487c494d3703ab29

    • C:\Windows\hosts.exe

      Filesize

      334KB

      MD5

      fb19f25ec4cbfb430588bd3e32e06b86

      SHA1

      22d57aa7cff5c6b14819bd912ac57d020bc51701

      SHA256

      d8c943d0f1212af80f9251f11947155a040d18d6f6f9c6bbf440574e0588c9b4

      SHA512

      7e376a6d3aba77b9874f1679d89efa15afbaf43471374811b8e8b92740d17076c51cd7fa872bafd6f83e3b6fb28cb6cc6e03ff2a58b9431e69a0cb681cab5395

    • C:\Windows\hosts.exe

      Filesize

      334KB

      MD5

      fb19f25ec4cbfb430588bd3e32e06b86

      SHA1

      22d57aa7cff5c6b14819bd912ac57d020bc51701

      SHA256

      d8c943d0f1212af80f9251f11947155a040d18d6f6f9c6bbf440574e0588c9b4

      SHA512

      7e376a6d3aba77b9874f1679d89efa15afbaf43471374811b8e8b92740d17076c51cd7fa872bafd6f83e3b6fb28cb6cc6e03ff2a58b9431e69a0cb681cab5395

    • C:\Windows\hosts.exe

      Filesize

      334KB

      MD5

      fb19f25ec4cbfb430588bd3e32e06b86

      SHA1

      22d57aa7cff5c6b14819bd912ac57d020bc51701

      SHA256

      d8c943d0f1212af80f9251f11947155a040d18d6f6f9c6bbf440574e0588c9b4

      SHA512

      7e376a6d3aba77b9874f1679d89efa15afbaf43471374811b8e8b92740d17076c51cd7fa872bafd6f83e3b6fb28cb6cc6e03ff2a58b9431e69a0cb681cab5395

    • C:\Windows\hosts.exe

      Filesize

      334KB

      MD5

      fb19f25ec4cbfb430588bd3e32e06b86

      SHA1

      22d57aa7cff5c6b14819bd912ac57d020bc51701

      SHA256

      d8c943d0f1212af80f9251f11947155a040d18d6f6f9c6bbf440574e0588c9b4

      SHA512

      7e376a6d3aba77b9874f1679d89efa15afbaf43471374811b8e8b92740d17076c51cd7fa872bafd6f83e3b6fb28cb6cc6e03ff2a58b9431e69a0cb681cab5395

    • C:\windows\hosts.exe

      Filesize

      334KB

      MD5

      fb19f25ec4cbfb430588bd3e32e06b86

      SHA1

      22d57aa7cff5c6b14819bd912ac57d020bc51701

      SHA256

      d8c943d0f1212af80f9251f11947155a040d18d6f6f9c6bbf440574e0588c9b4

      SHA512

      7e376a6d3aba77b9874f1679d89efa15afbaf43471374811b8e8b92740d17076c51cd7fa872bafd6f83e3b6fb28cb6cc6e03ff2a58b9431e69a0cb681cab5395

    • \??\c:\windows\W_X_C.bat

      Filesize

      336B

      MD5

      4db9f8b6175722b62ececeeeba1ce307

      SHA1

      3b3ba8414706e72a6fa19e884a97b87609e11e47

      SHA256

      d2150b9e5a4ce55e140f0ca91c4e300715d42095c8fddf58c77037cdd2cfaf78

      SHA512

      1d6dc274cf7a3dd704f840e6a5ad57ab4c4e35d5f09489aeff520bb797e1c825bac53fc335156fe41e767a46520d031855fe42fe7b175409ebe5e9e986fb9b8b