Analysis

  • max time kernel
    111s
  • max time network
    113s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/11/2024, 15:04

General

  • Target

    ad42757c8047eb19d63802fe648dab5ed361d0541d397febf33b8b47a1309017N.exe

  • Size

    64KB

  • MD5

    4a76a4e930bec401bea9deb37512c9e0

  • SHA1

    ddd938da715326a366b97d800698edac2fae4749

  • SHA256

    ad42757c8047eb19d63802fe648dab5ed361d0541d397febf33b8b47a1309017

  • SHA512

    db6d5d9408eedc99f796173a6e4fc938810746b15e6176af780041fd74b39f119c127a21b4631230e59a695ccdfddca3aa57392bb1af9383b22716b8ac0c6200

  • SSDEEP

    1536:8g/9T8ROcQupqqusN3mrS/ztMhkywRFUnTmc5n4IIIIIIIIIIIIIIIIII/IIIII0:8g585LpPCrQt7F84IIIIIIIIIIIIIIIW

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 3 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Disables RegEdit via registry modification 2 IoCs
  • ASPack v2.12-2.42 1 IoCs

    Detects executables packed with ASPack v2.12-2.42

  • Executes dropped EXE 2 IoCs
  • Modifies system executable filetype association 2 TTPs 8 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in Windows directory 44 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • Modifies data under HKEY_USERS 13 IoCs
  • Modifies registry class 12 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ad42757c8047eb19d63802fe648dab5ed361d0541d397febf33b8b47a1309017N.exe
    "C:\Users\Admin\AppData\Local\Temp\ad42757c8047eb19d63802fe648dab5ed361d0541d397febf33b8b47a1309017N.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Modifies visiblity of hidden/system files in Explorer
    • Disables RegEdit via registry modification
    • Modifies system executable filetype association
    • Adds Run key to start application
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:316
    • C:\Windows\spoolun.exe
      "C:\Windows\spoolun.exe" -xInstallOurNiceServicesYes
      2⤵
      • Modifies WinLogon for persistence
      • Modifies visiblity of hidden/system files in Explorer
      • Disables RegEdit via registry modification
      • Executes dropped EXE
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      PID:3996
  • C:\Windows\spoolun.exe
    C:\Windows\spoolun.exe -xStartOurNiceServicesYes
    1⤵
    • Modifies WinLogon for persistence
    • Executes dropped EXE
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies data under HKEY_USERS
    • Suspicious behavior: EnumeratesProcesses
    PID:2924

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Windows\spoolun.exe

          Filesize

          64KB

          MD5

          4a76a4e930bec401bea9deb37512c9e0

          SHA1

          ddd938da715326a366b97d800698edac2fae4749

          SHA256

          ad42757c8047eb19d63802fe648dab5ed361d0541d397febf33b8b47a1309017

          SHA512

          db6d5d9408eedc99f796173a6e4fc938810746b15e6176af780041fd74b39f119c127a21b4631230e59a695ccdfddca3aa57392bb1af9383b22716b8ac0c6200

        • memory/316-80-0x0000000000400000-0x000000000051F000-memory.dmp

          Filesize

          1.1MB

        • memory/316-84-0x0000000000400000-0x000000000051F000-memory.dmp

          Filesize

          1.1MB

        • memory/316-45-0x0000000000400000-0x000000000051F000-memory.dmp

          Filesize

          1.1MB

        • memory/316-82-0x0000000000400000-0x000000000051F000-memory.dmp

          Filesize

          1.1MB

        • memory/316-47-0x0000000000400000-0x000000000051F000-memory.dmp

          Filesize

          1.1MB

        • memory/316-49-0x0000000000400000-0x000000000051F000-memory.dmp

          Filesize

          1.1MB

        • memory/316-51-0x0000000000400000-0x000000000051F000-memory.dmp

          Filesize

          1.1MB

        • memory/316-53-0x0000000000400000-0x000000000051F000-memory.dmp

          Filesize

          1.1MB

        • memory/316-55-0x0000000000400000-0x000000000051F000-memory.dmp

          Filesize

          1.1MB

        • memory/316-58-0x0000000000400000-0x000000000051F000-memory.dmp

          Filesize

          1.1MB

        • memory/316-78-0x0000000000400000-0x000000000051F000-memory.dmp

          Filesize

          1.1MB

        • memory/2924-54-0x0000000000400000-0x000000000051F000-memory.dmp

          Filesize

          1.1MB

        • memory/2924-79-0x0000000000400000-0x000000000051F000-memory.dmp

          Filesize

          1.1MB

        • memory/2924-46-0x0000000000400000-0x000000000051F000-memory.dmp

          Filesize

          1.1MB

        • memory/3996-7-0x0000000000400000-0x000000000051F000-memory.dmp

          Filesize

          1.1MB