Analysis

  • max time kernel
    96s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/09/2024, 09:46

General

  • Target

    2024-09-02_bce0bf5041b21b15ac001c713fdea40f_cryptolocker.exe

  • Size

    788KB

  • MD5

    bce0bf5041b21b15ac001c713fdea40f

  • SHA1

    135b9b5705554de61228539486ff7a632e05f8a7

  • SHA256

    cae1d486ef9f4445ffaf5b10186982b348a5fbc57686f22631e9d8cfe3dffdbc

  • SHA512

    1ee66fd7d368d04a77ded53735f2d6361f3b3846b83932c60273374af9872d2d050c0554ae09b3f0a1a0c1ceeb3dfdaf1038e5b29740ac053cc903084a1fc5b3

  • SSDEEP

    24576:aHQVCB9lVF1lVF1lVFkUEi019za5F+DLK9bygw6X/pR:aHAg9lVF1lVF1lVFkUEiiCX/b

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 2 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).

  • 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 system certificate store 2 TTPs 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-09-02_bce0bf5041b21b15ac001c713fdea40f_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-02_bce0bf5041b21b15ac001c713fdea40f_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4608
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies system certificate store
      PID:2216

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          788KB

          MD5

          fa654a3837245f0d303a52c496145714

          SHA1

          079a1f777f0d489ee45d2ce82057ee32fdadbaa3

          SHA256

          50d94883195ad55c01ae90ff97f8d01876f9c5c96ce3ac14172eb5add402ca82

          SHA512

          70b3b0ffd944b2c7b40f5316c79d18cc00e2c32b01c2e94cacec7c11c385765d3517fa5311e3b2c2d8772dbf9177724175ad23e1675276fbf2ec0b563c083663

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

          Filesize

          315B

          MD5

          a34ac19f4afae63adc5d2f7bc970c07f

          SHA1

          a82190fc530c265aa40a045c21770d967f4767b8

          SHA256

          d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

          SHA512

          42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

        • memory/2216-23-0x0000000000590000-0x0000000000596000-memory.dmp

          Filesize

          24KB

        • memory/2216-17-0x00000000005B0000-0x00000000005B6000-memory.dmp

          Filesize

          24KB

        • memory/4608-0-0x00000000005F0000-0x00000000005F6000-memory.dmp

          Filesize

          24KB

        • memory/4608-1-0x00000000005F0000-0x00000000005F6000-memory.dmp

          Filesize

          24KB

        • memory/4608-2-0x00000000021B0000-0x00000000021B6000-memory.dmp

          Filesize

          24KB