Analysis

  • max time kernel
    124s
  • max time network
    129s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/08/2023, 15:59

General

  • Target

    4a950d8454e350d949c1fb528adc2ae8_cryptolocker_JC.exe

  • Size

    74KB

  • MD5

    4a950d8454e350d949c1fb528adc2ae8

  • SHA1

    fbefb2c0e98dbe8023e8c75bbd9440a3aa292205

  • SHA256

    9b1e52fb3ffe1cf82289b98fe228b1f5cd18400cd1a49c54e9a138a81855a55f

  • SHA512

    73e32898abc0701bb8ae8f845e703eb678fe0e0eec965fcca461bb1f604807d5f510d5d13092455298160d4646fcab63b52e307b82e870b1fce939aedaeeab8f

  • SSDEEP

    1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJNpsAnJYqdIRhpHP:ZVxkGOtEvwDpjcNa

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\4a950d8454e350d949c1fb528adc2ae8_cryptolocker_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\4a950d8454e350d949c1fb528adc2ae8_cryptolocker_JC.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1204
    • 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:2944

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    74KB

    MD5

    723d11aa4b16f97a298c337b0ad375fd

    SHA1

    6f4b16259942840eb3a5ee27629e16487cb8d57c

    SHA256

    5118551f416d7159098b91be645538d87ea0fdb6f3efc92134dd41ce082ae3fd

    SHA512

    a0bedefed2720ec5c6eac26340f884a9eefb6190d7a30773db6bb8be0cb98f9c97c9ab7e3e2915c19f29c20e4659237c663c8e1e490f5a4c0df1f853bd668188

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

    Filesize

    74KB

    MD5

    723d11aa4b16f97a298c337b0ad375fd

    SHA1

    6f4b16259942840eb3a5ee27629e16487cb8d57c

    SHA256

    5118551f416d7159098b91be645538d87ea0fdb6f3efc92134dd41ce082ae3fd

    SHA512

    a0bedefed2720ec5c6eac26340f884a9eefb6190d7a30773db6bb8be0cb98f9c97c9ab7e3e2915c19f29c20e4659237c663c8e1e490f5a4c0df1f853bd668188

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

    Filesize

    74KB

    MD5

    723d11aa4b16f97a298c337b0ad375fd

    SHA1

    6f4b16259942840eb3a5ee27629e16487cb8d57c

    SHA256

    5118551f416d7159098b91be645538d87ea0fdb6f3efc92134dd41ce082ae3fd

    SHA512

    a0bedefed2720ec5c6eac26340f884a9eefb6190d7a30773db6bb8be0cb98f9c97c9ab7e3e2915c19f29c20e4659237c663c8e1e490f5a4c0df1f853bd668188

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1204-133-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB

  • memory/1204-134-0x00000000006F0000-0x00000000006F6000-memory.dmp

    Filesize

    24KB

  • memory/1204-135-0x00000000006F0000-0x00000000006F6000-memory.dmp

    Filesize

    24KB

  • memory/1204-136-0x00000000021C0000-0x00000000021C6000-memory.dmp

    Filesize

    24KB

  • memory/1204-150-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB

  • memory/2944-152-0x0000000002040000-0x0000000002046000-memory.dmp

    Filesize

    24KB

  • memory/2944-153-0x00000000021D0000-0x00000000021D6000-memory.dmp

    Filesize

    24KB