Analysis

  • max time kernel
    148s
  • max time network
    151s
  • 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 12:11

General

  • Target

    2024-09-05_8e0941ce64fc5f491ef0aa7c60076cf9_cryptolocker.exe

  • Size

    55KB

  • MD5

    8e0941ce64fc5f491ef0aa7c60076cf9

  • SHA1

    174a4a2a0279754b44ac7853b28b3270c23650ec

  • SHA256

    b41f5883d8aa1ac37362865f3a36e5e60647e0f0c9ed5a1a90f7cb558f17e63d

  • SHA512

    d1fcdfa423c11642c748cc7f52d490c58178e9fc2a490af8e1c54651dbab3c87ca564f03203479b07e50be1115452d3b6e8397f2c960cfb1bb40f4c7cdfb12e4

  • SSDEEP

    768:X6LsoEEeegiZPvEhHSG+gp/BtOOtEvwDpjBVaD3E09vxmlcaTIo:X6QFElP6n+gJBMOtEvwDpjBtExmlr

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_8e0941ce64fc5f491ef0aa7c60076cf9_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-05_8e0941ce64fc5f491ef0aa7c60076cf9_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3348
    • 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:2648
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4288,i,5469445176230119590,7931734017267321834,262144 --variations-seed-version --mojo-platform-channel-handle=3756 /prefetch:8
    1⤵
      PID:4376

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      55KB

      MD5

      319527475ff543a02bb8b57199ec92f7

      SHA1

      5374bad7254295bde09b4035f823659ae6baf31f

      SHA256

      52bb0192503b4b716a906c72d74c677ae60c4a5a763e0b516d56cad4ef309e09

      SHA512

      95f6f37a9798bd7096811896e2c3e1f3281d4e4115110494d42fb575b84acef9df9d5627fc5eea7cecde89e29af8127584bf2bad6dc9ad793c195c7cf34b9d85

    • memory/2648-17-0x00000000004D0000-0x00000000004D6000-memory.dmp

      Filesize

      24KB

    • memory/2648-18-0x00000000004F0000-0x00000000004F6000-memory.dmp

      Filesize

      24KB

    • memory/3348-0-0x00000000005E0000-0x00000000005E6000-memory.dmp

      Filesize

      24KB

    • memory/3348-1-0x00000000005E0000-0x00000000005E6000-memory.dmp

      Filesize

      24KB

    • memory/3348-2-0x0000000000600000-0x0000000000606000-memory.dmp

      Filesize

      24KB