Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-11-2024 07:52

General

  • Target

    7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.exe

  • Size

    64KB

  • MD5

    bd27b7bfa460b44a0852c2692d519e61

  • SHA1

    89fe3f30e7d4074b0afb7038acbcd91783a63ae6

  • SHA256

    7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5

  • SHA512

    781d01ab86c69546b30a3a2ae1f5251b3f7487bcca1482958da78413353b0dfb152226be3de9909377490d1c57eab6feca2e7aea9df274692fb833a96a187520

  • SSDEEP

    1536:8g/9T8ROcQupqqusN3mrS/ztMhkywRFUnTmc5n4IIIIIIIIIIIIIIIIII/IIIIIN:8g585LpPCrQt7F84IIIIIIIIIIIIIIIT

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 42 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\7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.exe
    "C:\Users\Admin\AppData\Local\Temp\7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5.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:1508
    • C:\Windows\SMSSvj.exe
      "C:\Windows\SMSSvj.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:3136
  • C:\Windows\SMSSvj.exe
    C:\Windows\SMSSvj.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:4116

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Windows\SMSSvj.exe

    Filesize

    64KB

    MD5

    bd27b7bfa460b44a0852c2692d519e61

    SHA1

    89fe3f30e7d4074b0afb7038acbcd91783a63ae6

    SHA256

    7a8f43187deaf0aa1ba244995e24ebf6fbc1cb2a7475d55fabf97f33685d25e5

    SHA512

    781d01ab86c69546b30a3a2ae1f5251b3f7487bcca1482958da78413353b0dfb152226be3de9909377490d1c57eab6feca2e7aea9df274692fb833a96a187520

  • memory/1508-45-0x0000000000400000-0x000000000051F000-memory.dmp

    Filesize

    1.1MB

  • memory/1508-61-0x0000000000400000-0x000000000051F000-memory.dmp

    Filesize

    1.1MB

  • memory/1508-78-0x0000000000400000-0x000000000051F000-memory.dmp

    Filesize

    1.1MB

  • memory/1508-39-0x0000000000400000-0x000000000051F000-memory.dmp

    Filesize

    1.1MB

  • memory/1508-41-0x0000000000400000-0x000000000051F000-memory.dmp

    Filesize

    1.1MB

  • memory/1508-76-0x0000000000400000-0x000000000051F000-memory.dmp

    Filesize

    1.1MB

  • memory/1508-37-0x0000000000400000-0x000000000051F000-memory.dmp

    Filesize

    1.1MB

  • memory/1508-72-0x0000000000400000-0x000000000051F000-memory.dmp

    Filesize

    1.1MB

  • memory/1508-43-0x0000000000400000-0x000000000051F000-memory.dmp

    Filesize

    1.1MB

  • memory/1508-74-0x0000000000400000-0x000000000051F000-memory.dmp

    Filesize

    1.1MB

  • memory/1508-64-0x0000000000400000-0x000000000051F000-memory.dmp

    Filesize

    1.1MB

  • memory/1508-66-0x0000000000400000-0x000000000051F000-memory.dmp

    Filesize

    1.1MB

  • memory/1508-68-0x0000000000400000-0x000000000051F000-memory.dmp

    Filesize

    1.1MB

  • memory/1508-70-0x0000000000400000-0x000000000051F000-memory.dmp

    Filesize

    1.1MB

  • memory/3136-7-0x0000000000400000-0x000000000051F000-memory.dmp

    Filesize

    1.1MB

  • memory/4116-62-0x0000000000400000-0x000000000051F000-memory.dmp

    Filesize

    1.1MB

  • memory/4116-71-0x0000000000400000-0x000000000051F000-memory.dmp

    Filesize

    1.1MB

  • memory/4116-42-0x0000000000400000-0x000000000051F000-memory.dmp

    Filesize

    1.1MB

  • memory/4116-77-0x0000000000400000-0x000000000051F000-memory.dmp

    Filesize

    1.1MB

  • memory/4116-38-0x0000000000400000-0x000000000051F000-memory.dmp

    Filesize

    1.1MB