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Analysis

  • max time kernel
    180s
  • max time network
    188s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    19/04/2024, 12:38

General

  • Target

    2024-04-19_699a61ce52dfd297f0d6de546e3a3d38_cryptolocker.exe

  • Size

    67KB

  • MD5

    699a61ce52dfd297f0d6de546e3a3d38

  • SHA1

    194a1cd9d4f485e0e431bd14fd131fa5f1f1abaf

  • SHA256

    071165a2122c9b03ee606c7e72dcb6e6f0632a1ff2a6fd6ed3493fd0ce7a85fc

  • SHA512

    f16167522156fa28cde50ebefacfae110701987ba71f89fefa3da6cbfad82eeaa88c1b5b53d37462876e3b342d30ab7260f7e60838a23da33c9a5fd7eed13115

  • SSDEEP

    768:XS5nQJ24LR1bytOOtEvwDpjNbZ7uyA36S7MpxRXrZSUNsYD/6:i5nkFGMOtEvwDpjNbwQEI8UZDC

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 3 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\2024-04-19_699a61ce52dfd297f0d6de546e3a3d38_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-19_699a61ce52dfd297f0d6de546e3a3d38_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2104
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:2708

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    67KB

    MD5

    aba3634f5a1f266cd2741ad4ab174cf4

    SHA1

    15a8bef2bc6f4f9d90c7e9d86e7cc8256c988b4b

    SHA256

    16490404c2055293573edae2fddbb1659dfccbef8b33c692b617409aed385aba

    SHA512

    0a60346019e70ab5290ccc6ecacc5b81821ee60f25dd6d1f03d898469b7f17a45d55e2f7bbb65e7d59aab80cb8c17631352d2f3c07cf87177903fc791a2e921b

  • memory/2104-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2104-1-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2104-2-0x0000000000370000-0x0000000000376000-memory.dmp

    Filesize

    24KB

  • memory/2104-9-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2104-15-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2708-16-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2708-18-0x0000000001C90000-0x0000000001C96000-memory.dmp

    Filesize

    24KB

  • memory/2708-25-0x00000000004E0000-0x00000000004E6000-memory.dmp

    Filesize

    24KB

  • memory/2708-26-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB