Analysis

  • max time kernel
    111s
  • max time network
    110s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/11/2024, 02:43

General

  • Target

    8f3c9ad33eefaa5eb5fc4543f0e48c85c32abb3d9d0e09b6f1ee74a6d1189463.exe

  • Size

    63KB

  • MD5

    01f7c5322bd3b6129c48969e3254a9f7

  • SHA1

    caa3978e1784c0071c66138a04f70f91daeb817b

  • SHA256

    8f3c9ad33eefaa5eb5fc4543f0e48c85c32abb3d9d0e09b6f1ee74a6d1189463

  • SHA512

    95cfa7f44d2e08b70e7b91e3110cbe872764deb1fbf6f02551ee2b2ca11c3cca61a5d1196baeb7bc7246a373f9008bff8e74976b960a952ef6fabab7f3cdb640

  • SSDEEP

    1536:8g/9T8ROcQupqqusN3mrS/ztMhkywRFUnTmc5n4IIIIIIIIIIIIIIIIII/IIIIIn:8g585LpPCrQt7F84IIIIIIIIIIIIIIIx

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 40 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\8f3c9ad33eefaa5eb5fc4543f0e48c85c32abb3d9d0e09b6f1ee74a6d1189463.exe
    "C:\Users\Admin\AppData\Local\Temp\8f3c9ad33eefaa5eb5fc4543f0e48c85c32abb3d9d0e09b6f1ee74a6d1189463.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:2364
    • C:\Windows\spoolfm.exe
      "C:\Windows\spoolfm.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:1840
  • C:\Windows\spoolfm.exe
    C:\Windows\spoolfm.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:3264

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\spoolfm.exe

    Filesize

    63KB

    MD5

    01f7c5322bd3b6129c48969e3254a9f7

    SHA1

    caa3978e1784c0071c66138a04f70f91daeb817b

    SHA256

    8f3c9ad33eefaa5eb5fc4543f0e48c85c32abb3d9d0e09b6f1ee74a6d1189463

    SHA512

    95cfa7f44d2e08b70e7b91e3110cbe872764deb1fbf6f02551ee2b2ca11c3cca61a5d1196baeb7bc7246a373f9008bff8e74976b960a952ef6fabab7f3cdb640

  • memory/1840-7-0x0000000000400000-0x000000000051F000-memory.dmp

    Filesize

    1.1MB

  • memory/2364-39-0x0000000000400000-0x000000000051F000-memory.dmp

    Filesize

    1.1MB

  • memory/2364-35-0x0000000000400000-0x000000000051F000-memory.dmp

    Filesize

    1.1MB

  • memory/2364-37-0x0000000000400000-0x000000000051F000-memory.dmp

    Filesize

    1.1MB

  • memory/2364-78-0x0000000000400000-0x000000000051F000-memory.dmp

    Filesize

    1.1MB

  • memory/2364-41-0x0000000000400000-0x000000000051F000-memory.dmp

    Filesize

    1.1MB

  • memory/2364-82-0x0000000000400000-0x000000000051F000-memory.dmp

    Filesize

    1.1MB

  • memory/2364-43-0x0000000000400000-0x000000000051F000-memory.dmp

    Filesize

    1.1MB

  • memory/2364-45-0x0000000000400000-0x000000000051F000-memory.dmp

    Filesize

    1.1MB

  • memory/2364-80-0x0000000000400000-0x000000000051F000-memory.dmp

    Filesize

    1.1MB

  • memory/2364-74-0x0000000000400000-0x000000000051F000-memory.dmp

    Filesize

    1.1MB

  • memory/2364-76-0x0000000000400000-0x000000000051F000-memory.dmp

    Filesize

    1.1MB

  • memory/3264-36-0x0000000000400000-0x000000000051F000-memory.dmp

    Filesize

    1.1MB

  • memory/3264-75-0x0000000000400000-0x000000000051F000-memory.dmp

    Filesize

    1.1MB

  • memory/3264-42-0x0000000000400000-0x000000000051F000-memory.dmp

    Filesize

    1.1MB

  • memory/3264-83-0x0000000000400000-0x000000000051F000-memory.dmp

    Filesize

    1.1MB