Analysis

  • max time kernel
    141s
  • max time network
    21s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    17/11/2024, 15:12

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 Program Files directory 64 IoCs
  • Drops file in Windows directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 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 44 IoCs
  • Modifies registry class 12 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of WriteProcessMemory 4 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:2004
    • C:\Windows\SMSSlm.exe
      "C:\Windows\SMSSlm.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
      PID:1156
  • C:\Windows\SMSSlm.exe
    C:\Windows\SMSSlm.exe -xStartOurNiceServicesYes
    1⤵
    • Modifies WinLogon for persistence
    • Executes dropped EXE
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies data under HKEY_USERS
    • Suspicious behavior: EnumeratesProcesses
    PID:2180

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Windows\SMSSlm.exe

          Filesize

          64KB

          MD5

          4a76a4e930bec401bea9deb37512c9e0

          SHA1

          ddd938da715326a366b97d800698edac2fae4749

          SHA256

          ad42757c8047eb19d63802fe648dab5ed361d0541d397febf33b8b47a1309017

          SHA512

          db6d5d9408eedc99f796173a6e4fc938810746b15e6176af780041fd74b39f119c127a21b4631230e59a695ccdfddca3aa57392bb1af9383b22716b8ac0c6200

        • C:\Windows\Temp\tYtHgdna.UbK\message.htm

          Filesize

          88KB

          MD5

          84b61b37074a65e5aa03f387be522d59

          SHA1

          02f623ef7a8be858b7921a173c2ec53635b879cb

          SHA256

          6f585632c22adfaf37952a7adcef260014f72bfdcb69e729ca568e6fb6691f3b

          SHA512

          264b390be497ff44deec22f081cc772d57c5f85c8d6ecbf08f04a2ae3ecf3b86a83c30085cd32ff99d445a9bf76c106a7f308c3b631afed8427c1d70d70948a1

        • C:\Windows\message.dat

          Filesize

          88KB

          MD5

          3500da4b2317ad36ceeae88ebba98f47

          SHA1

          16303f881930b076717c6ca78ddcc9fcb8891901

          SHA256

          4e2398f6744cb560a9c848604fc2c51695702e6f746435245fcd0f5a3313a0ba

          SHA512

          bdb2b4e5ceff9bedeb68c403095fa7f6830eff2e314577e7fc75649d86b6eb596c23bd070b3177749963904b6268e429cd6a667fc3b9b8d3bec42cd64ea3f29f

        • C:\Windows\svchost.exe

          Filesize

          64KB

          MD5

          4c0f811440f10527601a6e7a7b99833e

          SHA1

          58057ca967d63250ae3b0888a6f01ec5da031bca

          SHA256

          17f0d109fd57d3ce2a21e5c541ebb9e66c441c25892e875f609bb6648bb15728

          SHA512

          2dfb5bbfca13fca4fb22c28a623795b7c4ddc89e6bde24ff2dcac3418fbc13949fa02779e529d6654dd94ec256a199a140b0d56daa971a3cdaf16b721ace01d6

        • memory/1156-10-0x0000000000400000-0x000000000051F000-memory.dmp

          Filesize

          1.1MB

        • memory/2004-406-0x0000000000400000-0x000000000051F000-memory.dmp

          Filesize

          1.1MB

        • memory/2004-27-0x0000000000400000-0x000000000051F000-memory.dmp

          Filesize

          1.1MB

        • memory/2004-52-0x0000000000400000-0x000000000051F000-memory.dmp

          Filesize

          1.1MB

        • memory/2004-436-0x0000000000400000-0x000000000051F000-memory.dmp

          Filesize

          1.1MB

        • memory/2004-150-0x0000000000400000-0x000000000051F000-memory.dmp

          Filesize

          1.1MB

        • memory/2004-412-0x0000000000400000-0x000000000051F000-memory.dmp

          Filesize

          1.1MB

        • memory/2004-257-0x0000000000400000-0x000000000051F000-memory.dmp

          Filesize

          1.1MB

        • memory/2004-410-0x0000000000400000-0x000000000051F000-memory.dmp

          Filesize

          1.1MB

        • memory/2004-355-0x0000000000400000-0x000000000051F000-memory.dmp

          Filesize

          1.1MB

        • memory/2004-408-0x0000000000400000-0x000000000051F000-memory.dmp

          Filesize

          1.1MB

        • memory/2004-398-0x0000000000400000-0x000000000051F000-memory.dmp

          Filesize

          1.1MB

        • memory/2004-404-0x0000000000400000-0x000000000051F000-memory.dmp

          Filesize

          1.1MB

        • memory/2004-400-0x0000000000400000-0x000000000051F000-memory.dmp

          Filesize

          1.1MB

        • memory/2004-402-0x0000000000400000-0x000000000051F000-memory.dmp

          Filesize

          1.1MB

        • memory/2180-401-0x0000000000400000-0x000000000051F000-memory.dmp

          Filesize

          1.1MB

        • memory/2180-399-0x0000000000400000-0x000000000051F000-memory.dmp

          Filesize

          1.1MB

        • memory/2180-28-0x0000000000400000-0x000000000051F000-memory.dmp

          Filesize

          1.1MB

        • memory/2180-407-0x0000000000400000-0x000000000051F000-memory.dmp

          Filesize

          1.1MB

        • memory/2180-356-0x0000000000400000-0x000000000051F000-memory.dmp

          Filesize

          1.1MB

        • memory/2180-258-0x0000000000400000-0x000000000051F000-memory.dmp

          Filesize

          1.1MB

        • memory/2180-151-0x0000000000400000-0x000000000051F000-memory.dmp

          Filesize

          1.1MB

        • memory/2180-69-0x0000000000400000-0x000000000051F000-memory.dmp

          Filesize

          1.1MB

        • memory/2180-437-0x0000000000400000-0x000000000051F000-memory.dmp

          Filesize

          1.1MB