Analysis

  • max time kernel
    148s
  • 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
    15/10/2024, 05:27

General

  • Target

    2024-10-15_2145ebbbabafaa5b5cb92247ee477580_cryptolocker.exe

  • Size

    90KB

  • MD5

    2145ebbbabafaa5b5cb92247ee477580

  • SHA1

    354b500a8ee9da17d68b60e5347e8630aaf0af6e

  • SHA256

    9d7fe6d917d472ad4232be1eb9054453cf837de01936530189e26b67f71e77df

  • SHA512

    a3fb315225bff504e9501a5e0ca8fd2e818a85c637b2956be49150d1300f57a617766a8b29424a1b59769e54948687bd283392cd1e252b7c7f50487a0cd9f543

  • SSDEEP

    1536:n6QFElP6n+g9u9cvMOtEvwDpjYYTjipvF2bx1PQAf:n6a+1SEOtEvwDpjYYvQd2Pf

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\2024-10-15_2145ebbbabafaa5b5cb92247ee477580_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-15_2145ebbbabafaa5b5cb92247ee477580_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3252
    • 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:1268

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    90KB

    MD5

    0da515017f3681674f54e8ae17d2c845

    SHA1

    d7d3d5ad36845f6b035fd007120b13394ec3dd68

    SHA256

    ca5356f0d8e782c544b80c4eb2219c7ca1b195f1009521d54647b9e5d87debdb

    SHA512

    dfef96fe6c3f1f2b8c3a33e4a78e937b933480bec1a2848bc0847661a61d56b2a0cc8294da1b7f0d73ac07323812df3049c9b305ab46e95c8850f408a7aab1dd

  • memory/1268-19-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/1268-20-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/1268-26-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/3252-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/3252-1-0x00000000006B0000-0x00000000006B6000-memory.dmp

    Filesize

    24KB

  • memory/3252-2-0x00000000006B0000-0x00000000006B6000-memory.dmp

    Filesize

    24KB

  • memory/3252-3-0x0000000002070000-0x0000000002076000-memory.dmp

    Filesize

    24KB

  • memory/3252-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB