Analysis

  • max time kernel
    94s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/06/2024, 09:11

General

  • Target

    2024-06-08_d86c658f22726be1197cfb284ff01227_cryptolocker.exe

  • Size

    68KB

  • MD5

    d86c658f22726be1197cfb284ff01227

  • SHA1

    2e0c24c94887dfabf2e623716af7c8e583ec2df9

  • SHA256

    aab76a46e578c5ff6e7e093e79e060b16de21f8f250384bf8ba99db66c4c3c30

  • SHA512

    4c66389267c299676c9c55c6d6e8931dc4d1e7283ca146eff03c20aee5aa87d9d182d01bdced7451418f2e787d0f51871e0c0216ce1aefb259747cf8f67e356f

  • SSDEEP

    768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPOYRmNxt5I52kGEpE0P/xFIJ:6j+1NMOtEvwDpjr8ox8UDEpN/js

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 5 IoCs
  • Detects executables built or packed with MPress PE compressor 5 IoCs
  • 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).

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-06-08_d86c658f22726be1197cfb284ff01227_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-08_d86c658f22726be1197cfb284ff01227_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2916
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Modifies system certificate store
      PID:3008

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          68KB

          MD5

          1009854dcc506100355ddb68cf7d7192

          SHA1

          917756f11838014bef37fd9e93f75bf9a7c7e54e

          SHA256

          f59ff00832116e8ac9337d6d6615e5df8bae9c45f1a0f3d50dd5eef1f1bdd0b1

          SHA512

          51acf1ff4ef132e88f291e336f5db0da650d795308ca6070db94de4c52c946f578ae4572d5fba6e58ac1915ad39ef2e9aae28fa7365d230d8ad5fa4f2140cdc8

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

          Filesize

          315B

          MD5

          a34ac19f4afae63adc5d2f7bc970c07f

          SHA1

          a82190fc530c265aa40a045c21770d967f4767b8

          SHA256

          d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

          SHA512

          42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

        • memory/2916-0-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB

        • memory/2916-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

          Filesize

          24KB

        • memory/2916-2-0x0000000000860000-0x0000000000866000-memory.dmp

          Filesize

          24KB

        • memory/2916-9-0x00000000006A0000-0x00000000006A6000-memory.dmp

          Filesize

          24KB

        • memory/2916-25-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB

        • memory/3008-17-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB

        • memory/3008-19-0x00000000004F0000-0x00000000004F6000-memory.dmp

          Filesize

          24KB

        • memory/3008-26-0x00000000004D0000-0x00000000004D6000-memory.dmp

          Filesize

          24KB

        • memory/3008-49-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB