Analysis

  • max time kernel
    148s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/07/2023, 12:32

General

  • Target

    b1236599fb6fed_JC.exe

  • Size

    36KB

  • MD5

    b1236599fb6fedf08c4430a3b0dcf506

  • SHA1

    2809c12a4fa758d628182e88ecbd7c4a897d33f2

  • SHA256

    2c962e6563821a20338e87db5337e79182eeda35aa14fd105ced67b3d8e03676

  • SHA512

    ce5fe074ee0f76fdf164245b9712f1277b9563d890663277fda3f2f0f777e7bfb2309d28567b4c7a54bcf9627f81f300c636f9c93d7f14d92355ae61a10f124b

  • SSDEEP

    384:bgX4uGLLQRcsdeQ7/nQu63Ag7YmecFanrlwfjDUkKDfWf6XT+72kmGYjBa4GY4:bgX4zYcgTEu6QOaryfjqDlC7rYE4m

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b1236599fb6fed_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\b1236599fb6fed_JC.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4760
    • C:\Users\Admin\AppData\Local\Temp\hasfj.exe
      "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
      2⤵
      • Executes dropped EXE
      PID:1420

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

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

          Filesize

          36KB

          MD5

          baa8c2d98b2d4b7949fd1078918b1a57

          SHA1

          86dbac682be315c2e4ddd51457f3b4aabd9d2102

          SHA256

          00034c5a33dde8c87e3ac23be6cafce3708bff01ca38b422beefd09e29e96efc

          SHA512

          cd26602ed4d34e885cceaa15c6882d356acc7101654d4868b56ed151178b4a56615f5641e04e229e1cac2e3f48cf9c0abd93e235a8d2d753edd0626c7882ede1

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

          Filesize

          36KB

          MD5

          baa8c2d98b2d4b7949fd1078918b1a57

          SHA1

          86dbac682be315c2e4ddd51457f3b4aabd9d2102

          SHA256

          00034c5a33dde8c87e3ac23be6cafce3708bff01ca38b422beefd09e29e96efc

          SHA512

          cd26602ed4d34e885cceaa15c6882d356acc7101654d4868b56ed151178b4a56615f5641e04e229e1cac2e3f48cf9c0abd93e235a8d2d753edd0626c7882ede1

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

          Filesize

          36KB

          MD5

          baa8c2d98b2d4b7949fd1078918b1a57

          SHA1

          86dbac682be315c2e4ddd51457f3b4aabd9d2102

          SHA256

          00034c5a33dde8c87e3ac23be6cafce3708bff01ca38b422beefd09e29e96efc

          SHA512

          cd26602ed4d34e885cceaa15c6882d356acc7101654d4868b56ed151178b4a56615f5641e04e229e1cac2e3f48cf9c0abd93e235a8d2d753edd0626c7882ede1

        • memory/1420-150-0x0000000003010000-0x0000000003016000-memory.dmp

          Filesize

          24KB

        • memory/1420-151-0x0000000000780000-0x0000000000786000-memory.dmp

          Filesize

          24KB

        • memory/4760-133-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

          Filesize

          24KB

        • memory/4760-134-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

          Filesize

          24KB

        • memory/4760-135-0x0000000003150000-0x0000000003156000-memory.dmp

          Filesize

          24KB