Analysis

  • max time kernel
    148s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    20/02/2024, 12:26

General

  • Target

    2024-02-20_1fc4c6cf96a785d7289cb2c4403356f3_cryptolocker.exe

  • Size

    105KB

  • MD5

    1fc4c6cf96a785d7289cb2c4403356f3

  • SHA1

    a55761efe669b7bbc0f6af6da9c9d8697f870c41

  • SHA256

    832b16756321b254e6506b57d3438732e331c36f4b082251317d050245a0418d

  • SHA512

    69f606a26a5635921bfdc6ec802b2143de1f66909f8d9438eed68b4d71946978d089a65f72ebd7a7e80a02c9c9a222f10a2936894412dee7ecc10b2c3e36c479

  • SSDEEP

    768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZ7uyA36S7MpxRiWjy9K:xj+VGMOtEvwDpjubwQEIikuK

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\misid.exe
    "C:\Users\Admin\AppData\Local\Temp\misid.exe"
    1⤵
    • Executes dropped EXE
    PID:2744
  • C:\Users\Admin\AppData\Local\Temp\2024-02-20_1fc4c6cf96a785d7289cb2c4403356f3_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-20_1fc4c6cf96a785d7289cb2c4403356f3_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2720

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          105KB

          MD5

          9f433bc88ac35f614fa53524fbe3c598

          SHA1

          7d32f43b25f89751ad16a8f6fc346250e6877d23

          SHA256

          cc3016df1156ddc9853bdc7bcadb9588f6fde4a2447808e2b3ef521edb83cdf3

          SHA512

          95eeeee03cbcbdde29fc2e3d8a0804f65d516e7450ee678e545472a588eae89b2f8df554fc8322092cdca5fe409f4ef8b5e9ca82311a1ab9e43b4979fb1f1388

        • memory/2720-14-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/2720-9-0x0000000000240000-0x0000000000246000-memory.dmp

          Filesize

          24KB

        • memory/2720-2-0x0000000000270000-0x0000000000276000-memory.dmp

          Filesize

          24KB

        • memory/2720-1-0x0000000000240000-0x0000000000246000-memory.dmp

          Filesize

          24KB

        • memory/2720-0-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/2744-25-0x00000000002C0000-0x00000000002C6000-memory.dmp

          Filesize

          24KB

        • memory/2744-18-0x00000000004A0000-0x00000000004A6000-memory.dmp

          Filesize

          24KB

        • memory/2744-16-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/2744-26-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB