Analysis

  • max time kernel
    149s
  • max time network
    138s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    06/06/2024, 21:35

General

  • Target

    2024-06-06_cb7bf86ef245dda0b3b347c2eedf287f_cryptolocker.exe

  • Size

    60KB

  • MD5

    cb7bf86ef245dda0b3b347c2eedf287f

  • SHA1

    64305d1f1f5a6f480f311f6bec48a98c20c17198

  • SHA256

    3c4954218eac6a224125c94835bbb28cc952ef0fad93e058c55b732abff3687d

  • SHA512

    a0c9193ab3eb3f8a4d960d40609c7f717d4aee147e6a56606b9a70d5809f60c790b0005cce6ebea65c9f1810c4a4e685ca6d7052cdd5fc09bc5ef6800fda4309

  • SSDEEP

    768:H6LsoEEeegiZPvEhHSG+gk5NQXtckstOOtEvwDpjhBaD3TUogs/VXpAP3qhQ:H6QFElP6n+gou9cvMOtEvwDpjCpVXhhQ

Score
9/10
upx

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 5 IoCs
  • UPX dump on OEP (original entry point) 5 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 5 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\2024-06-06_cb7bf86ef245dda0b3b347c2eedf287f_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-06_cb7bf86ef245dda0b3b347c2eedf287f_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2336
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:2180

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          60KB

          MD5

          8f8566445173ee20a703809e19c82354

          SHA1

          87fc5254ff25ea1c7dfa4851f28e9c17950192fe

          SHA256

          26496d4f35cd11c9185525025c7711313c1da46be326fed4dadd5365f9291454

          SHA512

          fddc22e49190e9c91969d13d51d74e6b3581dc1c62fd52d1709ccdfbf2fdba7610da04508b10c4d00e95cb64d052625c2f18887b1ec66fce2d4e7a7924b98dad

        • memory/2180-16-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/2180-18-0x0000000000210000-0x0000000000216000-memory.dmp

          Filesize

          24KB

        • memory/2180-25-0x00000000001D0000-0x00000000001D6000-memory.dmp

          Filesize

          24KB

        • memory/2180-26-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/2336-0-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/2336-1-0x00000000002D0000-0x00000000002D6000-memory.dmp

          Filesize

          24KB

        • memory/2336-2-0x00000000002D0000-0x00000000002D6000-memory.dmp

          Filesize

          24KB

        • memory/2336-3-0x0000000000470000-0x0000000000476000-memory.dmp

          Filesize

          24KB

        • memory/2336-15-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB