Analysis

  • max time kernel
    148s
  • max time network
    134s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/08/2024, 07:04

General

  • Target

    2024-08-25_e97911f5b9a6d1fe176509d075f084cb_cryptolocker.exe

  • Size

    75KB

  • MD5

    e97911f5b9a6d1fe176509d075f084cb

  • SHA1

    286444556a0dc25dce8267ce1afe0c491340d3e8

  • SHA256

    1a6d0e66c6d5f00d3733e5e2b85bff0dfb6aabccd02edf6438d301764d0d9623

  • SHA512

    fe751deeb5e8eccab89361e5cdae0e0efeda9e00fcaeae150098daab78a5bb7261a8307b767a561d722fb9fe48f7c1765d5809ba48121ed5e1b6f8f415a8470e

  • SSDEEP

    768:9UQz7yVEhs9+4T/1bytOOtEvwDpjLXOQ69zbjlAAX5e9zC:9Uj+AIMOtEvwDpjLizbR9XwzC

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 10 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-08-25_e97911f5b9a6d1fe176509d075f084cb_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-08-25_e97911f5b9a6d1fe176509d075f084cb_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2840
    • 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:1488

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          75KB

          MD5

          8c608225dd42f08b2eb05efeb006c06b

          SHA1

          ccd79723f7189012c0e53eb36574c640519b13f5

          SHA256

          45f8aff16eaff735f7c72d26dc53ee8c6279a33bdda6a1eef6820a7cd2743de8

          SHA512

          8de446edbc00e399fc00128754bfec15b0365a74fd60d79d1190ed0e89ea2dd14402b14569e09a303954621407fd5ccb24b3c4135350c10f009e7e7de7bb9de8

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

          Filesize

          315B

          MD5

          a34ac19f4afae63adc5d2f7bc970c07f

          SHA1

          a82190fc530c265aa40a045c21770d967f4767b8

          SHA256

          d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

          SHA512

          42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

        • memory/1488-17-0x0000000000510000-0x0000000000516000-memory.dmp

          Filesize

          24KB

        • memory/1488-23-0x00000000004E0000-0x00000000004E6000-memory.dmp

          Filesize

          24KB

        • memory/2840-0-0x0000000002210000-0x0000000002216000-memory.dmp

          Filesize

          24KB

        • memory/2840-1-0x0000000002210000-0x0000000002216000-memory.dmp

          Filesize

          24KB

        • memory/2840-2-0x0000000002230000-0x0000000002236000-memory.dmp

          Filesize

          24KB