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Analysis

  • max time kernel
    150s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-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 1 IoCs
  • Modifies firewall policy service 2 TTPs 3 IoCs
  • Modifies security service 2 TTPs 3 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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops startup file 4 IoCs
  • Executes dropped EXE 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 13 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:1172
    • 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
      • Checks computer location settings
      • Drops startup file
      • Adds Run key to start application
      • Drops file in Program Files directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:368
      • C:\Users\Admin\AppData\Local\Temp\dicXidIH.exe
        "C:\Users\Admin\AppData\Local\Temp\dicXidIH.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:3192
        • C:\Users\Admin\AppData\Local\Temp\dicXidIH.exe
          "C:\Users\Admin\AppData\Local\Temp\dicXidIH.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:3124

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    390KB

    MD5

    3559d4c2042aa3227b2a91144fe37895

    SHA1

    3be2f8d9fb14c4067d5952ff7938587dc040502a

    SHA256

    77814302f158fa09f96657adf45d2675d07977e93585701df74a9d70041c54bf

    SHA512

    c5aa263010a458433af7e39276ffa4438678fe85022f5679896491e979f76b51b0e3bd800e3d0ff5768102ccee0b746dfcf55158f7cf2c344feb4ccdc9e7f6de

  • memory/368-8-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/368-4-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/368-35-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/368-6-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/368-2-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/1172-7-0x0000000000400000-0x0000000000466000-memory.dmp

    Filesize

    408KB

  • memory/1172-1-0x0000000000620000-0x0000000000621000-memory.dmp

    Filesize

    4KB

  • memory/1172-0-0x0000000000400000-0x0000000000466000-memory.dmp

    Filesize

    408KB

  • memory/3124-37-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/3124-30-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/3124-42-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/3192-21-0x0000000000400000-0x0000000000466000-memory.dmp

    Filesize

    408KB

  • memory/3192-22-0x0000000000400000-0x0000000000466000-memory.dmp

    Filesize

    408KB

  • memory/3192-28-0x0000000000400000-0x0000000000466000-memory.dmp

    Filesize

    408KB