Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/05/2024, 07:07

General

  • Target

    2024-05-30_e7655355a0a1f83dd75dc1f0a619b888_cryptolocker.exe

  • Size

    68KB

  • MD5

    e7655355a0a1f83dd75dc1f0a619b888

  • SHA1

    84a9ce9b84e47cf1194a7d5fb7eaaef59e0ea421

  • SHA256

    473dfd6475e6088a07fc2cc8baf6be867f194a61096436f714f8e7ba6fa335c2

  • SHA512

    e3fed02184ce1284e99cfa055c9e0b65f187d163fdf6ddb1d8ba52c7f2a7da48203368815fedbebf8121725d552e29aabe9fa1b5aba55a9624de0b66703c0264

  • SSDEEP

    768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPOYRmNxt5I52kGEpE0P/xFIN:6j+1NMOtEvwDpjr8ox8UDEpN/jw

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\2024-05-30_e7655355a0a1f83dd75dc1f0a619b888_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-30_e7655355a0a1f83dd75dc1f0a619b888_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1320
    • 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:1240

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          68KB

          MD5

          46cc11618cbeb8396c6e4390820710b9

          SHA1

          52dd939c8bb4872475f87c06159f295870c74cb0

          SHA256

          bf8ce4df5761c2265a942bdeb90ae51b2ae02301abb5a1482cddcedfc20af523

          SHA512

          e2e2210e50bb276cafdbbc61bb796f9d11f5d7348486b1ae71f21a3916b10a422f814aacda07e5995e1c5974dbbb4892bd789453e5618d8936e485f58cd20d92

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

          Filesize

          315B

          MD5

          a34ac19f4afae63adc5d2f7bc970c07f

          SHA1

          a82190fc530c265aa40a045c21770d967f4767b8

          SHA256

          d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

          SHA512

          42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

        • memory/1240-18-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB

        • memory/1240-20-0x00000000006D0000-0x00000000006D6000-memory.dmp

          Filesize

          24KB

        • memory/1240-26-0x0000000000660000-0x0000000000666000-memory.dmp

          Filesize

          24KB

        • memory/1240-49-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB

        • memory/1320-0-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB

        • memory/1320-1-0x00000000005B0000-0x00000000005B6000-memory.dmp

          Filesize

          24KB

        • memory/1320-2-0x00000000005B0000-0x00000000005B6000-memory.dmp

          Filesize

          24KB

        • memory/1320-3-0x00000000005D0000-0x00000000005D6000-memory.dmp

          Filesize

          24KB

        • memory/1320-17-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB