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Analysis

  • max time kernel
    120s
  • max time network
    138s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    13/02/2024, 04:27

General

  • Target

    2024-02-13_0a9f55e398b19890686f3bbfac179185_cryptolocker.exe

  • Size

    63KB

  • MD5

    0a9f55e398b19890686f3bbfac179185

  • SHA1

    dc6eda0206d00e9248065ceaec07eb52a433ab4f

  • SHA256

    17a5c5c9b2436b591a708a417a08f779a6478a4933c1711fc9c96daa57e4c302

  • SHA512

    17be0d0bfebcf9b2ebdae5aa6fbdd6460a3b415b5f62745df0387a6d92f33dfdba819b4d46dcb7887ca41387451287927ec95645a9fcfd490c96a5d3b079a51b

  • SSDEEP

    1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3hvLcbVV:ZVxkGOtEvwDpjcawv

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 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).

  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-02-13_0a9f55e398b19890686f3bbfac179185_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-13_0a9f55e398b19890686f3bbfac179185_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1716
    • 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:2820

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\Cab8E2E.tmp

    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

  • C:\Users\Admin\AppData\Local\Temp\Tar8FE6.tmp

    Filesize

    171KB

    MD5

    9c0c641c06238516f27941aa1166d427

    SHA1

    64cd549fb8cf014fcd9312aa7a5b023847b6c977

    SHA256

    4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

    SHA512

    936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

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

    Filesize

    63KB

    MD5

    6c8ab1d43580c8f2ae90f04441526c00

    SHA1

    279f2954b53e0d70dc1e4e9927eeaa8ef28eda97

    SHA256

    8ab31256a0e90f81a0ffd32b21d95c0b74c599760dfd0c07ce0a75561b148c5f

    SHA512

    c82debbd8e76bb28b7bfc4c1f642299a66c2edc840ea9b1d24cb139258987410e24216ae0bd5a7eb81b71ea9ba740af7d2f115d6b74bd86c017bfe3499574e29

  • memory/1716-0-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/1716-1-0x0000000000470000-0x0000000000476000-memory.dmp

    Filesize

    24KB

  • memory/1716-2-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2820-14-0x0000000000240000-0x0000000000246000-memory.dmp

    Filesize

    24KB

  • memory/2820-16-0x00000000002F0000-0x00000000002F6000-memory.dmp

    Filesize

    24KB