Analysis

  • max time kernel
    120s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    09/11/2024, 15:34

General

  • Target

    2ddb90ba6fcd210c02903afbb47630523d4661d4b0069bfd3386abfbef34e628N.exe

  • Size

    524KB

  • MD5

    088da2d6bac46c6d2df6c6c29e28b170

  • SHA1

    a7ce89dc0265d52ba26727ceed4a9102511d7e0d

  • SHA256

    2ddb90ba6fcd210c02903afbb47630523d4661d4b0069bfd3386abfbef34e628

  • SHA512

    f813d4e4e46233b4edccf41c1a891b82059251d59b7341ced80bd623bc4f53d6f4057eb3436bbdf12e67c210c77a1efa0ac73f0f3216510abbc6ca8afe2a67ad

  • SSDEEP

    12288:LLS65eo7WOcg3kXaD5Ny6+KW78FCjIwQpe:LLS65eKWOpkXaLy6OECXQpe

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 5 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • UPX packed file 5 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2ddb90ba6fcd210c02903afbb47630523d4661d4b0069bfd3386abfbef34e628N.exe
    "C:\Users\Admin\AppData\Local\Temp\2ddb90ba6fcd210c02903afbb47630523d4661d4b0069bfd3386abfbef34e628N.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2532
    • C:\Users\Admin\AppData\Local\Temp\2ddb90ba6fcd210c02903afbb47630523d4661d4b0069bfd3386abfbef34e628N.exe
      "C:\Users\Admin\AppData\Local\Temp\2ddb90ba6fcd210c02903afbb47630523d4661d4b0069bfd3386abfbef34e628N.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:980
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\Users\Admin\AppData\Local\Temp\HDYCP.bat" "
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2180
        • C:\Windows\SysWOW64\reg.exe
          REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "WindowsService" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\SystemWindowsWindowsService\WindowsService.exe" /f
          4⤵
          • Adds Run key to start application
          • System Location Discovery: System Language Discovery
          PID:1624
      • C:\Users\Admin\AppData\Roaming\SystemWindowsWindowsService\WindowsService.exe
        "C:\Users\Admin\AppData\Roaming\SystemWindowsWindowsService\WindowsService.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2476
        • C:\Users\Admin\AppData\Roaming\SystemWindowsWindowsService\WindowsService.exe
          "C:\Users\Admin\AppData\Roaming\SystemWindowsWindowsService\WindowsService.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:444

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\HDYCP.bat

    Filesize

    178B

    MD5

    c2cc427c87f0a6e231266dbb4d5b6ac5

    SHA1

    e0849fc705f915d218b2dc2f744bb24157022355

    SHA256

    1b985a6f00b15b5eb13fd2b9c79f163e2c3ed1b8d4133e08f213dc6dc7850999

    SHA512

    be4d6b172b0c92d1ffa33b30c642db3ccbda637af92234853918ef5e3c6c40121ec10c42557c96ddbc234d0d539c47c6c5adc8bf4c77e9daf8204661215a8e37

  • \Users\Admin\AppData\Roaming\SystemWindowsWindowsService\WindowsService.exe

    Filesize

    524KB

    MD5

    8bf79d0710d6051f67bd3e9a400e7210

    SHA1

    06bbd0c668da2f88df7fa397cec014f9a4ea4b57

    SHA256

    58265b56e3429d0981df3ba159dd479de9824a946fb67dabf35ecef512d29573

    SHA512

    c07078997a1582d163177d167e49b84ecff717a190b0d699db01856ebdf8e641423bca8b550343d71d85e0d71e6c2259b2fba793e1774660027b0bf6ff3dbb85

  • memory/444-612-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/444-621-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/980-298-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/980-340-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/980-619-0x0000000000400000-0x000000000040B000-memory.dmp

    Filesize

    44KB

  • memory/2532-2-0x00000000003A0000-0x00000000003A1000-memory.dmp

    Filesize

    4KB

  • memory/2532-140-0x0000000001EC0000-0x0000000001EC1000-memory.dmp

    Filesize

    4KB

  • memory/2532-151-0x0000000001F70000-0x0000000001FF4000-memory.dmp

    Filesize

    528KB