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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

    Come Inside.scr

  • Size

    521KB

  • MD5

    e5a3b8e0ea5a54fdb1d408fe6a48bff5

  • SHA1

    636cc09bdeb18fed338ce2a5082c79d4d258cf3b

  • SHA256

    93b7e7810a3726a1c2a7f4eadcd8cbad7202ce9245f818d14c4bd5d2556346fe

  • SHA512

    98fb147438a4a5f941e92003b8a7a448067571271727ac90470a949addfcef3061b27d554a904236a1e5d0f6a16790228a6b597df695e1f0b584c7b93cb47667

  • SSDEEP

    12288:ONWz1AUZbht1FGdX3EDVsmfZ/al8ViJQPRHDVsmh:OQzO8bhOED6mB/aYYQ5HD6mh

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\Come Inside.scr
    "C:\Users\Admin\AppData\Local\Temp\Come Inside.scr" /S
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:64
    • C:\Users\Admin\AppData\Local\Temp\Come Inside.scr
      "C:\Users\Admin\AppData\Local\Temp\Come Inside.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:4992
      • C:\Users\Admin\AppData\Local\Temp\gNZDGXPm.exe
        "C:\Users\Admin\AppData\Local\Temp\gNZDGXPm.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2928
        • C:\Users\Admin\AppData\Local\Temp\gNZDGXPm.exe
          "C:\Users\Admin\AppData\Local\Temp\gNZDGXPm.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:960

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    521KB

    MD5

    e5a3b8e0ea5a54fdb1d408fe6a48bff5

    SHA1

    636cc09bdeb18fed338ce2a5082c79d4d258cf3b

    SHA256

    93b7e7810a3726a1c2a7f4eadcd8cbad7202ce9245f818d14c4bd5d2556346fe

    SHA512

    98fb147438a4a5f941e92003b8a7a448067571271727ac90470a949addfcef3061b27d554a904236a1e5d0f6a16790228a6b597df695e1f0b584c7b93cb47667

  • memory/64-1-0x00000000020F0000-0x00000000020F1000-memory.dmp

    Filesize

    4KB

  • memory/64-6-0x0000000000400000-0x0000000000466000-memory.dmp

    Filesize

    408KB

  • memory/64-0-0x0000000000400000-0x0000000000466000-memory.dmp

    Filesize

    408KB

  • memory/960-42-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/960-37-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/960-28-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/2928-22-0x0000000000400000-0x0000000000466000-memory.dmp

    Filesize

    408KB

  • memory/2928-21-0x0000000000400000-0x0000000000466000-memory.dmp

    Filesize

    408KB

  • memory/2928-34-0x0000000000400000-0x0000000000466000-memory.dmp

    Filesize

    408KB

  • memory/4992-8-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/4992-7-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/4992-35-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/4992-5-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/4992-2-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB