Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-09-2024 12:17

General

  • Target

    2024-09-05_e21bbca260d8a0b3ea143709aa289f5d_cryptolocker.exe

  • Size

    72KB

  • MD5

    e21bbca260d8a0b3ea143709aa289f5d

  • SHA1

    c8d7a97731be23cab845f95f17ff3753a7dd7856

  • SHA256

    fd196f936bbffa47551bcc8e4ae5adc11f62b6a162a7dcc415a4601226cfeac4

  • SHA512

    147b32d2087bd0e2534bdfad79f663721ff1a05ea3208f917ed0bda9b87416568688d3c33937f0a1858a82413a374ec98cc1383f6f7694a26c5585bea79b2442

  • SSDEEP

    1536:Dk/xY0sllyGQMOtEvwDpjwycDtKkQZQRKb61vSbgZ3QzNKUNZOlr:DW60sllyWOtEvwDpjwF85y

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
  • 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\2024-09-05_e21bbca260d8a0b3ea143709aa289f5d_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-05_e21bbca260d8a0b3ea143709aa289f5d_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3980
    • 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:1308

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    73KB

    MD5

    68033cc601b6aa706f1ed9d9bd98247d

    SHA1

    19bf22ce463132b2ddf5b83c9f2afb403eb5d7fc

    SHA256

    55613219deee192abac91e09cf5c3ae7c0e573206d3e723b362d7fe995190bf3

    SHA512

    1d22a80349ceee7a00843c1af060d80cfda2d954be4b84f456653765b754509ed7599b041e49544a55962801f7839fb8bfe197e5b2d73c93b30d315fc5afc69b

  • memory/1308-20-0x00000000006C0000-0x00000000006C6000-memory.dmp

    Filesize

    24KB

  • memory/1308-19-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/1308-26-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB

  • memory/3980-0-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB

  • memory/3980-2-0x0000000000730000-0x0000000000736000-memory.dmp

    Filesize

    24KB

  • memory/3980-1-0x0000000000730000-0x0000000000736000-memory.dmp

    Filesize

    24KB

  • memory/3980-3-0x0000000000750000-0x0000000000756000-memory.dmp

    Filesize

    24KB

  • memory/3980-17-0x0000000000500000-0x000000000050B000-memory.dmp

    Filesize

    44KB