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Analysis

  • max time kernel
    150s
  • max time network
    135s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    14/05/2024, 23:23

General

  • Target

    Big tits and deep ass.scr

  • Size

    390KB

  • MD5

    3559d4c2042aa3227b2a91144fe37895

  • SHA1

    3be2f8d9fb14c4067d5952ff7938587dc040502a

  • SHA256

    77814302f158fa09f96657adf45d2675d07977e93585701df74a9d70041c54bf

  • SHA512

    c5aa263010a458433af7e39276ffa4438678fe85022f5679896491e979f76b51b0e3bd800e3d0ff5768102ccee0b746dfcf55158f7cf2c344feb4ccdc9e7f6de

  • SSDEEP

    12288:ONWz1AUZbht1FGdX3lvnd64iJJpCeCslYrwS:OQzO8bhO2ZLlYrp

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 2 IoCs
  • Modifies firewall policy service 2 TTPs 3 IoCs
  • Modifies security service 2 TTPs 4 IoCs
  • UAC bypass 3 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 6 IoCs
  • Disables Task Manager via registry modification
  • ASPack v2.12-2.42 1 IoCs

    Detects executables packed with ASPack v2.12-2.42

  • Drops startup file 4 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • UPX packed file 8 IoCs

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

  • Windows security modification 2 TTPs 6 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Big tits and deep ass.scr
    "C:\Users\Admin\AppData\Local\Temp\Big tits and deep ass.scr" /S
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2512
    • C:\Users\Admin\AppData\Local\Temp\Big tits and deep ass.scr
      "C:\Users\Admin\AppData\Local\Temp\Big tits and deep ass.scr"
      2⤵
      • Modifies WinLogon for persistence
      • Drops startup file
      • Loads dropped DLL
      • Adds Run key to start application
      • Drops file in Program Files directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1708
      • C:\Users\Admin\AppData\Local\Temp\TygBLNdD.exe
        "C:\Users\Admin\AppData\Local\Temp\TygBLNdD.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1804
        • C:\Users\Admin\AppData\Local\Temp\TygBLNdD.exe
          "C:\Users\Admin\AppData\Local\Temp\TygBLNdD.exe"
          4⤵
          • Modifies firewall policy service
          • Modifies security service
          • UAC bypass
          • Windows security bypass
          • Drops startup file
          • Executes dropped EXE
          • Windows security modification
          • Adds Run key to start application
          • Checks whether UAC is enabled
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • System policy modification
          PID:2288

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\TygBLNdD.exe

    Filesize

    390KB

    MD5

    3559d4c2042aa3227b2a91144fe37895

    SHA1

    3be2f8d9fb14c4067d5952ff7938587dc040502a

    SHA256

    77814302f158fa09f96657adf45d2675d07977e93585701df74a9d70041c54bf

    SHA512

    c5aa263010a458433af7e39276ffa4438678fe85022f5679896491e979f76b51b0e3bd800e3d0ff5768102ccee0b746dfcf55158f7cf2c344feb4ccdc9e7f6de

  • memory/1708-42-0x0000000000420000-0x0000000000487000-memory.dmp

    Filesize

    412KB

  • memory/1708-2-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/1708-11-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/1708-44-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/1708-6-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/1708-4-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1708-12-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/1708-9-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/1708-21-0x00000000022C0000-0x0000000002326000-memory.dmp

    Filesize

    408KB

  • memory/1804-36-0x0000000000400000-0x0000000000466000-memory.dmp

    Filesize

    408KB

  • memory/1804-24-0x0000000000400000-0x0000000000466000-memory.dmp

    Filesize

    408KB

  • memory/2288-38-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/2288-46-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/2288-51-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/2512-0-0x0000000000400000-0x0000000000466000-memory.dmp

    Filesize

    408KB

  • memory/2512-10-0x0000000000400000-0x0000000000466000-memory.dmp

    Filesize

    408KB

  • memory/2512-1-0x00000000001C0000-0x00000000001C1000-memory.dmp

    Filesize

    4KB