Analysis

  • max time kernel
    123s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-10-2024 06:03

General

  • Target

    faee9cbca77874b1b683c65fa7be49a45b7666b023cc5b0be857aef49d078f53.exe

  • Size

    4.9MB

  • MD5

    2462ad9cc66377e6af57da53c5f9f637

  • SHA1

    c9556b41b31b410ea934f7fa1b0385971cb7791e

  • SHA256

    faee9cbca77874b1b683c65fa7be49a45b7666b023cc5b0be857aef49d078f53

  • SHA512

    8f1f3185aad6608748062192ca3b2aa292b38525ec2729d136c249f2f268150852ec87bd2413331ef628fb3fe0f4c9e3e1c96d88cea2a3ce9d66eb5e128a6cd5

  • SSDEEP

    98304:gMmD2mDAc2mDMmD2mDrc2mDMmD2mD65MmD2mD6c2mDMmD2mDk:gMmD2mDAc2mDMmD2mDrc2mDMmD2mD65C

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
  • Checks computer location settings 2 TTPs 3 IoCs

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

  • Executes dropped EXE 6 IoCs
  • Impair Defenses: Safe Mode Boot 1 TTPs 6 IoCs
  • Adds Run key to start application 2 TTPs 3 IoCs
  • Drops file in Windows directory 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 22 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • 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\faee9cbca77874b1b683c65fa7be49a45b7666b023cc5b0be857aef49d078f53.exe
    "C:\Users\Admin\AppData\Local\Temp\faee9cbca77874b1b683c65fa7be49a45b7666b023cc5b0be857aef49d078f53.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
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1968
    • C:\Windows\SysWOW64\REG.exe
      REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
      2⤵
      • Impair Defenses: Safe Mode Boot
      • System Location Discovery: System Language Discovery
      • Modifies registry key
      PID:2568
    • 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
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2572
      • C:\Users\Admin\AppData\Local\Temp\avscan.exe
        C:\Users\Admin\AppData\Local\Temp\avscan.exe
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:1820
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c c:\windows\W_X_C.bat
        3⤵
        • Checks computer location settings
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        • Suspicious use of WriteProcessMemory
        PID:852
        • C:\windows\hosts.exe
          C:\windows\hosts.exe
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          PID:4140
        • C:\Windows\SysWOW64\WScript.exe
          "C:\Windows\System32\WScript.exe" "C:\Windows\W_X_C.vbs"
          4⤵
          • Adds policy Run key to start application
          • System Location Discovery: System Language Discovery
          PID:4960
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Modifies registry key
        PID:3916
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Modifies registry key
        PID:5112
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Modifies registry key
        PID:936
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • System Location Discovery: System Language Discovery
        • Modifies registry key
        PID:2796
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c c:\windows\W_X_C.bat
      2⤵
      • Checks computer location settings
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:3884
      • C:\windows\hosts.exe
        C:\windows\hosts.exe
        3⤵
        • 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
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3120
        • C:\Users\Admin\AppData\Local\Temp\avscan.exe
          C:\Users\Admin\AppData\Local\Temp\avscan.exe
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of SetWindowsHookEx
          PID:1280
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c c:\windows\W_X_C.bat
          4⤵
          • Checks computer location settings
          • System Location Discovery: System Language Discovery
          • Modifies registry class
          • Suspicious use of WriteProcessMemory
          PID:3648
          • C:\windows\hosts.exe
            C:\windows\hosts.exe
            5⤵
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious use of SetWindowsHookEx
            PID:4564
          • C:\Windows\SysWOW64\WScript.exe
            "C:\Windows\System32\WScript.exe" "C:\Windows\W_X_C.vbs"
            5⤵
            • Adds policy Run key to start application
            • System Location Discovery: System Language Discovery
            PID:1812
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • System Location Discovery: System Language Discovery
          • Modifies registry key
          PID:4872
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • System Location Discovery: System Language Discovery
          • Modifies registry key
          PID:3320
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • System Location Discovery: System Language Discovery
          • Modifies registry key
          PID:5036
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • System Location Discovery: System Language Discovery
          • Modifies registry key
          PID:1580
      • C:\Windows\SysWOW64\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Windows\W_X_C.vbs"
        3⤵
        • Adds policy Run key to start application
        • System Location Discovery: System Language Discovery
        PID:5040
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:2920

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

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

      Filesize

      4.9MB

      MD5

      52366910b110d4594503020dff8d7998

      SHA1

      20616af157f888f6b7162e400fb474cc38a5b5ca

      SHA256

      37e80970280c92c56f4665efe57d7e2b6036bd82a07b67886dcd5ef9f6e46d8d

      SHA512

      d75478d25ee7a00dc2d94d1efd1624ade2aff6921e25a5da64a7e63859ec55105afaf668a231d98e4d8cae60933b8d31aeba87f97362b39d3941078230d57cd3

    • C:\Windows\W_X_C.vbs

      Filesize

      195B

      MD5

      e0f251cc56475a3ab4d5d10362f7e20d

      SHA1

      59b24e7cceed5f72b0e0bc49c742ac233f842206

      SHA256

      c6409763015ff9882f094a6259f0867f961b1ff31171f239f31425768882ffd8

      SHA512

      bf441fc9a86b8d6c8eecf9ff5e47f0130a99a52c601df7bdab5c96aa060a6c74cb914801d6f13b907ad8ff00d9daab772fa5d3e184c0a7ce5c0ac6b1479c1716

    • C:\Windows\hosts.exe

      Filesize

      4.9MB

      MD5

      0a36185a806b73adbecf67e980cc6be5

      SHA1

      e643af1234a9bb02a4ea2587c680e8ca0d94b60e

      SHA256

      b77a1508094ca484a435f3f8475a6acee7770cea196895f2267c0a3a5b14483b

      SHA512

      0975a36167a62c2a54db00a11f1afb94ff162327da8d65e1bccb7f058e9e846854aee84c9eaf8b510d957dc40e2171515e8c01297c8cb44917d6a6028935ce52

    • \??\c:\windows\W_X_C.bat

      Filesize

      336B

      MD5

      4db9f8b6175722b62ececeeeba1ce307

      SHA1

      3b3ba8414706e72a6fa19e884a97b87609e11e47

      SHA256

      d2150b9e5a4ce55e140f0ca91c4e300715d42095c8fddf58c77037cdd2cfaf78

      SHA512

      1d6dc274cf7a3dd704f840e6a5ad57ab4c4e35d5f09489aeff520bb797e1c825bac53fc335156fe41e767a46520d031855fe42fe7b175409ebe5e9e986fb9b8b