Analysis

  • max time kernel
    127s
  • max time network
    129s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-09-2024 11:24

General

  • Target

    2024-09-06_a57cd306d11c06a9571ad015f1749bf8_cryptolocker.exe

  • Size

    50KB

  • MD5

    a57cd306d11c06a9571ad015f1749bf8

  • SHA1

    fb132236fc81ee08b72a06fcc9628efbb353bda1

  • SHA256

    e82fc2cb499ae71a6769fc31a82089b10511eabd16a9ea15f7a4cf2a4ffc44f3

  • SHA512

    5b798211522100998e9e7773773ab716564158e3b12423987edcb45440395257a06d3137691881de5644c58eb2ca177f1589a3a5e98b3e1ed150a60c3003df64

  • SSDEEP

    768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4/Uth8igNrr42A7n0FmB0n1:vj+jsMQMOtEvwDpj5HczerLO04BC

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 2 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.

  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-09-06_a57cd306d11c06a9571ad015f1749bf8_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-06_a57cd306d11c06a9571ad015f1749bf8_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3968
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies system certificate store
      PID:2944
  • 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=1012,i,3861745594156495651,17595114179815238301,262144 --variations-seed-version --mojo-platform-channel-handle=4300 /prefetch:8
    1⤵
      PID:3616

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      50KB

      MD5

      f6bc9dc9031dbf52a7237f379b83f185

      SHA1

      7af9500a4b3446eca6bec2e3afe6d23d8d70e4ea

      SHA256

      c7d0051b872448e989ea806f70a90dc870a04cb4b2733abf6a81101a7566d9f5

      SHA512

      b93e573feb921fea4867c6ba87389e56f0579d51efd900a4e4c3faef809ffb2c2034a3a1393d18e07f949e7ee42a63dece4e0090220bee23ca40cd50488383e8

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

      Filesize

      315B

      MD5

      a34ac19f4afae63adc5d2f7bc970c07f

      SHA1

      a82190fc530c265aa40a045c21770d967f4767b8

      SHA256

      d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

      SHA512

      42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

    • memory/2944-17-0x0000000001FD0000-0x0000000001FD6000-memory.dmp

      Filesize

      24KB

    • memory/2944-18-0x0000000001FF0000-0x0000000001FF6000-memory.dmp

      Filesize

      24KB

    • memory/3968-0-0x0000000000600000-0x0000000000606000-memory.dmp

      Filesize

      24KB

    • memory/3968-1-0x0000000000600000-0x0000000000606000-memory.dmp

      Filesize

      24KB

    • memory/3968-2-0x0000000002250000-0x0000000002256000-memory.dmp

      Filesize

      24KB