Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240220-en
  • resource tags

    arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
  • submitted
    10/06/2024, 21:36

General

  • Target

    2024-06-10_98768e8703a5b946d5548b8321c988fa_cryptolocker.exe

  • Size

    41KB

  • MD5

    98768e8703a5b946d5548b8321c988fa

  • SHA1

    ccd62b6ed2800c10dcb7eccf02e211bbdf8e0552

  • SHA256

    451a4d4b2fa6f735b20ae8c90402b6b75446480756204509bb8e9d2456de3ae3

  • SHA512

    2264fcd842e70c413a55a0cc8e4b28d82f9202828757e34aad223762d019ee869032d526a91d9dbff5f6d4bd4b980984faab121686a1f15cd93f174f50d8bdab

  • SSDEEP

    768:q7PdFecFS5agQtOOtEvwDpjeMLZdzuqpXsiE8Wq/DpkITYljy:qDdFJy3QMOtEvwDpjjWMl7T6+

Score
9/10
upx

Malware Config

Signatures

  • Detection of CryptoLocker Variants 6 IoCs
  • Detection of Cryptolocker Samples 6 IoCs
  • UPX dump on OEP (original entry point) 6 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 6 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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\2024-06-10_98768e8703a5b946d5548b8321c988fa_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-10_98768e8703a5b946d5548b8321c988fa_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1508
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2564

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          42KB

          MD5

          a9e9539b5dd5a344e4b7cee1819b7cc0

          SHA1

          42bf68294ee851bba68055db91e423e53c0f968a

          SHA256

          2b43a49987b48a0fe7eb874ef5e59ab1c2645cfbcb9a83a4d4f1119ac1b8ad88

          SHA512

          a101caeac621e7a50e2b636996e0ca148ff679d592fd102cc7c834057ab3ba6a995ebd8a1a8b9086ae566c68391086e516aa5987f656e414ffb31531f0766f59

        • memory/1508-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

          Filesize

          24KB

        • memory/1508-1-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/1508-2-0x0000000000290000-0x0000000000296000-memory.dmp

          Filesize

          24KB

        • memory/1508-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

          Filesize

          24KB

        • memory/1508-13-0x0000000002AC0000-0x0000000002AD0000-memory.dmp

          Filesize

          64KB

        • memory/1508-17-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/2564-20-0x0000000000300000-0x0000000000306000-memory.dmp

          Filesize

          24KB

        • memory/2564-19-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/2564-27-0x0000000000240000-0x0000000000246000-memory.dmp

          Filesize

          24KB

        • memory/2564-28-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB