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
    19-09-2024 02:22

General

  • Target

    2024-09-19_7fa57dd999d6a8dd735823b8a739cbc2_cryptolocker.exe

  • Size

    62KB

  • MD5

    7fa57dd999d6a8dd735823b8a739cbc2

  • SHA1

    9761cd85849992da0f297d9bfc214076b4ad0e39

  • SHA256

    5fee196ebd4759c0b7d962fded3455158fbec5e8ad49907128539f0f71fbff80

  • SHA512

    b8184dc95a37dbe1899c344b86f151655a5792140261c5d1908fb8721cfd895ff578489abb183ce45808ca611b475cab2682b32d0edd5b0240df7c1a376c7b95

  • SSDEEP

    768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPOYRmNxt5I52kGEpEtm:6j+1NMOtEvwDpjr8ox8UDEp0m

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 5 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-09-19_7fa57dd999d6a8dd735823b8a739cbc2_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-19_7fa57dd999d6a8dd735823b8a739cbc2_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1844
    • 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:2484
  • 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=4124,i,9445584274764997943,12714240264001792460,262144 --variations-seed-version --mojo-platform-channel-handle=3976 /prefetch:8
    1⤵
      PID:1132

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      62KB

      MD5

      5640bcb2e26e11290c821e850f801de7

      SHA1

      fa0dddfa8d8feb3076460ba888277fa165f0d5bb

      SHA256

      ce11d0de3125cfe4e4a53f0fe5a34b8af5ff025563866df4a196177fa3f4de4c

      SHA512

      aece9c9b0a65d2dd650d0bc5be19658af925eb28f9a9e4caa92b42d5f409c456e55363f4bc27c397afa385f897f76c3c0d61743b43fbf6803df11cd2903da0f9

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

      Filesize

      315B

      MD5

      a34ac19f4afae63adc5d2f7bc970c07f

      SHA1

      a82190fc530c265aa40a045c21770d967f4767b8

      SHA256

      d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

      SHA512

      42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

    • memory/1844-0-0x0000000000500000-0x000000000050F000-memory.dmp

      Filesize

      60KB

    • memory/1844-1-0x0000000000730000-0x0000000000736000-memory.dmp

      Filesize

      24KB

    • memory/1844-2-0x0000000000730000-0x0000000000736000-memory.dmp

      Filesize

      24KB

    • memory/1844-3-0x0000000000750000-0x0000000000756000-memory.dmp

      Filesize

      24KB

    • memory/1844-18-0x0000000000500000-0x000000000050F000-memory.dmp

      Filesize

      60KB

    • memory/2484-25-0x0000000000660000-0x0000000000666000-memory.dmp

      Filesize

      24KB

    • memory/2484-19-0x00000000006E0000-0x00000000006E6000-memory.dmp

      Filesize

      24KB

    • memory/2484-48-0x0000000000500000-0x000000000050F000-memory.dmp

      Filesize

      60KB