Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240419-en
  • resource tags

    arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
  • submitted
    02/06/2024, 04:46

General

  • Target

    2024-06-02_daef39f24182b3a380eb4901de2bf4b7_cryptolocker.exe

  • Size

    43KB

  • MD5

    daef39f24182b3a380eb4901de2bf4b7

  • SHA1

    ea51400203c4f8797cb2eba86d06519aaf6bc86b

  • SHA256

    c83ab739389de64d0bbe5dd8e31746e7806c996a9d05ad07de6fd898c665ee5d

  • SHA512

    d12ba7e05b43c5a9a1f37eb68e6d2bd51867b14073a650cec2883510c11d11b1af23fc4bebe97c296b451d1a88d0b8880c892bdc56b04b954141eee149244d60

  • SSDEEP

    768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqh6/agqBT:6j+1NMOtEvwDpjrRtq1

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

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

  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-06-02_daef39f24182b3a380eb4901de2bf4b7_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-02_daef39f24182b3a380eb4901de2bf4b7_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2084
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:3004

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          43KB

          MD5

          f1dec24c0d40dddec993b3a2cba799a9

          SHA1

          96847f527f792fac1998a2749a1b32d3adbf895f

          SHA256

          92cb6c439bcbd6d9947a31b37e52885e711405a1c263751554fd390a2cac4722

          SHA512

          fc67d88c1ff0e8f74214d640988812085291c4195f599d3a81df8a55dbeda19355ed5cba663397447a4d64818ff80af22494b6e855f6820a65fcff006e62f531

        • memory/2084-0-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB

        • memory/2084-1-0x00000000004A0000-0x00000000004A6000-memory.dmp

          Filesize

          24KB

        • memory/2084-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

          Filesize

          24KB

        • memory/2084-9-0x00000000004A0000-0x00000000004A6000-memory.dmp

          Filesize

          24KB

        • memory/2084-13-0x0000000002360000-0x000000000236F000-memory.dmp

          Filesize

          60KB

        • memory/2084-16-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB

        • memory/3004-18-0x0000000000310000-0x0000000000316000-memory.dmp

          Filesize

          24KB

        • memory/3004-25-0x00000000002C0000-0x00000000002C6000-memory.dmp

          Filesize

          24KB

        • memory/3004-26-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB