Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/11/2024, 15:08

General

  • Target

    2024-11-07_f15cf2306760758167e2eed8c6116665_cryptolocker.exe

  • Size

    68KB

  • MD5

    f15cf2306760758167e2eed8c6116665

  • SHA1

    8dfc9631080e19609bdf5cd44be7561200992a97

  • SHA256

    406165c387b84a954694e994f2526d4303a6b616aca410dd6677509aad604a83

  • SHA512

    af993b1ebb53eb0d8a999c33d655b962f280f4815daa6c37cd2bbc3e5718a9329498e4eb15ac27e1aad3fec586d8506b945793a8c29597b8dedaf47d81d7003c

  • SSDEEP

    1536:z6QFElP6n+gKmddpMOtEvwDpj9aYaFAeB/5:z6a+CdOOtEvwDpjQz

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • UPX packed file 4 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).

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-11-07_f15cf2306760758167e2eed8c6116665_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-11-07_f15cf2306760758167e2eed8c6116665_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4924
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2656

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          69KB

          MD5

          625473ac45dc8c9b4889bf268029b2cf

          SHA1

          0a8259ff8ddad78f54e2facad10631c138e5db6b

          SHA256

          2c1686aecb9739d7f123de276cbe3dcf7f3b398fb845df3e4a4605be8ef3b6d5

          SHA512

          cd8cf418572a4113857585ed6b0d9996e94339e4a6af2646de582ccee06357cc0c40c83279c5a2f1d69755f788d40078e00daeec992b06609aaad656341fbf3e

        • memory/2656-19-0x00000000006C0000-0x00000000006C6000-memory.dmp

          Filesize

          24KB

        • memory/2656-25-0x00000000006A0000-0x00000000006A6000-memory.dmp

          Filesize

          24KB

        • memory/2656-26-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/4924-0-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/4924-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

          Filesize

          24KB

        • memory/4924-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

          Filesize

          24KB

        • memory/4924-3-0x00000000004F0000-0x00000000004F6000-memory.dmp

          Filesize

          24KB

        • memory/4924-17-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB