Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    27/05/2024, 19:08

General

  • Target

    2024-05-27_2eca053bff3e6e167d756204afbbc1bb_cryptolocker.exe

  • Size

    81KB

  • MD5

    2eca053bff3e6e167d756204afbbc1bb

  • SHA1

    b6c6cc35d3424efce8a02a6f88f9273db9a3c1fd

  • SHA256

    1b7928bfce7e0ad585e56960f10cbded5c61a9bd394c9554bb23bbe15d58f041

  • SHA512

    d145b94592467ecddbce6a6dbe2888cec9e6588212a7c293203fda20171357d6671a6e6f32958f91739fb1933c6000e5bae8c55ab0210083d37f642425e1c88d

  • SSDEEP

    1536:zj+soPSMOtEvwDpj4ktBl01hJ0tq1ky7Qe:zCsanOtEvwDpjS

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\2024-05-27_2eca053bff3e6e167d756204afbbc1bb_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-27_2eca053bff3e6e167d756204afbbc1bb_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2068
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:3000

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          81KB

          MD5

          b92d78f3eafc7abfc2a55eb4a2538d68

          SHA1

          d8f003677237906c5b83b83b50dbf86f3f489931

          SHA256

          184a719570e9c25b8f28d57f3940e8c88c90284eac75d673b1cd980a380ebd30

          SHA512

          be50f7209ca1a36dd7f09dc971fef88ee280cd9f66862f78c43635d2401ddc4b5914ee48eacec402bc4a4d910c017bd785987ba1700efd7a105f52f4588d2fe6

        • memory/2068-0-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/2068-1-0x0000000000240000-0x0000000000246000-memory.dmp

          Filesize

          24KB

        • memory/2068-2-0x0000000000240000-0x0000000000246000-memory.dmp

          Filesize

          24KB

        • memory/2068-3-0x0000000000480000-0x0000000000486000-memory.dmp

          Filesize

          24KB

        • memory/2068-15-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/3000-16-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/3000-18-0x0000000000280000-0x0000000000286000-memory.dmp

          Filesize

          24KB

        • memory/3000-25-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB