Analysis

  • max time kernel
    125s
  • max time network
    127s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-09-2024 13:42

General

  • Target

    2024-09-27_65c33a60ca808aedf2e34075839b78d4_cryptolocker.exe

  • Size

    788KB

  • MD5

    65c33a60ca808aedf2e34075839b78d4

  • SHA1

    7714ec9c03c62ec48adac12def9297ff16179150

  • SHA256

    febcb3b5311a6526f0b9da2d4b0815ba67a5df871f7e474b4223d9dae60f0f24

  • SHA512

    64580972d588d5f788828f0346e6bebe458b359b87f7fe37634cc220c386eafe4c9949fe3db87eab61cb1a8258f1690caf818932e940889289975a69da6b1d67

  • SSDEEP

    24576:aHQVCB9lVF1lVF1lVFkUEi019za5F+DLK9bygw6X/pZ:aHAg9lVF1lVF1lVFkUEiiCX/z

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\2024-09-27_65c33a60ca808aedf2e34075839b78d4_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-27_65c33a60ca808aedf2e34075839b78d4_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3656
    • 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:1156
  • 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=4352,i,2727319350781907497,7925939240893079607,262144 --variations-seed-version --mojo-platform-channel-handle=3952 /prefetch:8
    1⤵
      PID:2588

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      788KB

      MD5

      7f6b1061b823cb40a5523311ac2f5e2c

      SHA1

      a497a60cb7faa582a0cc6e1139802a6918f35b75

      SHA256

      d039816f08f05c2e098460b854165a1314d96a258c33410eaf4b3c392ae26bd1

      SHA512

      118b9a6b778d683d8b147c60876d8ca11e7900a662fc33b804acaa34aa39d31530c7e00d0bf4a93b0425db8fb116fdee873ec6a0096f7edc95d175265bb1fe3d

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

      Filesize

      315B

      MD5

      a34ac19f4afae63adc5d2f7bc970c07f

      SHA1

      a82190fc530c265aa40a045c21770d967f4767b8

      SHA256

      d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

      SHA512

      42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

    • memory/1156-17-0x0000000000490000-0x0000000000496000-memory.dmp

      Filesize

      24KB

    • memory/1156-18-0x00000000004B0000-0x00000000004B6000-memory.dmp

      Filesize

      24KB

    • memory/3656-0-0x0000000000530000-0x0000000000536000-memory.dmp

      Filesize

      24KB

    • memory/3656-1-0x0000000000530000-0x0000000000536000-memory.dmp

      Filesize

      24KB

    • memory/3656-2-0x0000000000550000-0x0000000000556000-memory.dmp

      Filesize

      24KB