Analysis

  • max time kernel
    141s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/10/2024, 16:26

General

  • Target

    2024-10-17_5ff4421003553857c881f1d109e7637b_cryptolocker.exe

  • Size

    46KB

  • MD5

    5ff4421003553857c881f1d109e7637b

  • SHA1

    bc99cd4ed42ae5f62021ee31594d7a77528873d9

  • SHA256

    52ad45ff9eba6f2442fe9a7cbb93012bffa551e8d22a315454aad10c7b8407f4

  • SHA512

    b2e333b836bc6923cf313f16a283c6565ca9c91c9a8407300ae91c02694bd5e5e58de5b66719de0d767eba59259fdedc6bb8b13879ace5589df2b0ef4298693a

  • SSDEEP

    768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4/Uth8igNrr46xdUUuuM/k:vj+jsMQMOtEvwDpj5Hczer5ixuM/k

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 7 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-10-17_5ff4421003553857c881f1d109e7637b_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-17_5ff4421003553857c881f1d109e7637b_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4036
    • 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:3940

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          46KB

          MD5

          bb5148766638423e2244dd8ff4c301d4

          SHA1

          61170b73ea2f2beb82995eb8aa1a3e393a3bedb2

          SHA256

          1610c8e79082ec5bec4b27186c570a1c14b180b95cbf10a5dec9e9375ee1f201

          SHA512

          baf47262b10962e6c7236f5fae66e848a2069778110840276bb97c872f666c0341e95321fec3a7930d0651d5ca5b880ed0d7078088ec1943bf8b6b9c7621b4be

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

          Filesize

          315B

          MD5

          a34ac19f4afae63adc5d2f7bc970c07f

          SHA1

          a82190fc530c265aa40a045c21770d967f4767b8

          SHA256

          d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

          SHA512

          42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

        • memory/3940-17-0x0000000000660000-0x0000000000666000-memory.dmp

          Filesize

          24KB

        • memory/3940-23-0x00000000004D0000-0x00000000004D6000-memory.dmp

          Filesize

          24KB

        • memory/4036-0-0x0000000000530000-0x0000000000536000-memory.dmp

          Filesize

          24KB

        • memory/4036-1-0x0000000000530000-0x0000000000536000-memory.dmp

          Filesize

          24KB

        • memory/4036-2-0x00000000021C0000-0x00000000021C6000-memory.dmp

          Filesize

          24KB