Analysis

  • max time kernel
    141s
  • max time network
    138s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-08-2023 17:56

General

  • Target

    65c5d89084e8674e978d436c92defbd6_cryptolocker_JC.exe

  • Size

    101KB

  • MD5

    65c5d89084e8674e978d436c92defbd6

  • SHA1

    989a8834666fcf686adf0a4018c5a304c8d2e4e3

  • SHA256

    f5e210621f0acbe26bd2f351223ad17c658d636b1c219c25bbf13767880fe848

  • SHA512

    49be2fe0d5552f9ee824fd2e8975812d3dad4e386e9ff9477ee44c6c399c0050a9d71df7339767b7d16ac33071b463eabe357058cb018d91b19edd183cbbc1ee

  • SSDEEP

    768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRiWCCy9TaoRK3Q:xj+VGMOtEvwDpjubwQEIiePoRp

Score
7/10

Malware Config

Signatures

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

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

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\65c5d89084e8674e978d436c92defbd6_cryptolocker_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\65c5d89084e8674e978d436c92defbd6_cryptolocker_JC.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4224
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      PID:4396

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    101KB

    MD5

    e45fef85bd8bdcadd0b48eefee9272a0

    SHA1

    481395940fa93a6427d520eedace6e03f4e2859d

    SHA256

    f02211c9549f3aa6a4e50de4598463e9b4b5696d51e4a1e7ff5975942b920a72

    SHA512

    56e0fc480670e3a3240307a6bd8455fc836023780bee4c4c85fba87a6e40b3b7b56d5241a41b3c0ac2fc094b3948894cc6d39e61a729d867c4a931cc9f28d37d

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

    Filesize

    101KB

    MD5

    e45fef85bd8bdcadd0b48eefee9272a0

    SHA1

    481395940fa93a6427d520eedace6e03f4e2859d

    SHA256

    f02211c9549f3aa6a4e50de4598463e9b4b5696d51e4a1e7ff5975942b920a72

    SHA512

    56e0fc480670e3a3240307a6bd8455fc836023780bee4c4c85fba87a6e40b3b7b56d5241a41b3c0ac2fc094b3948894cc6d39e61a729d867c4a931cc9f28d37d

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

    Filesize

    101KB

    MD5

    e45fef85bd8bdcadd0b48eefee9272a0

    SHA1

    481395940fa93a6427d520eedace6e03f4e2859d

    SHA256

    f02211c9549f3aa6a4e50de4598463e9b4b5696d51e4a1e7ff5975942b920a72

    SHA512

    56e0fc480670e3a3240307a6bd8455fc836023780bee4c4c85fba87a6e40b3b7b56d5241a41b3c0ac2fc094b3948894cc6d39e61a729d867c4a931cc9f28d37d

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/4224-133-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/4224-134-0x0000000002210000-0x0000000002216000-memory.dmp

    Filesize

    24KB

  • memory/4224-135-0x0000000002210000-0x0000000002216000-memory.dmp

    Filesize

    24KB

  • memory/4224-136-0x0000000002230000-0x0000000002236000-memory.dmp

    Filesize

    24KB

  • memory/4224-150-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/4396-152-0x00000000020F0000-0x00000000020F6000-memory.dmp

    Filesize

    24KB

  • memory/4396-153-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/4396-181-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB