Analysis

  • max time kernel
    134s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/08/2024, 22:52

General

  • Target

    2024-08-28_ba783dfac2bb4b3d8f24b1fda56930a1_cryptolocker.exe

  • Size

    54KB

  • MD5

    ba783dfac2bb4b3d8f24b1fda56930a1

  • SHA1

    8c06c44f3c56770f4895d217c39a44ac7f69f70a

  • SHA256

    c49a81597eb9b39af578f4c4509e1651c5457ca99cda27c012aaa1b9dd09dbe7

  • SHA512

    575b002cb439195c058bcfd2490ac3e6afba27d7fab4827f426e3f0fc1572e101a0230a9596e5603df7f216b71ec7695faec5b17046b5bf252886a90a33602b7

  • SSDEEP

    768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4hdCW1nw71TkhsiPn1YFvP0:vj+jsMQMOtEvwDpj5HH1nw73KOF0

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\2024-08-28_ba783dfac2bb4b3d8f24b1fda56930a1_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-08-28_ba783dfac2bb4b3d8f24b1fda56930a1_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:376
    • 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:5116

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    54KB

    MD5

    23a22f7484c94c39b25c9046c46dfb9d

    SHA1

    5b68d811ef797f9fb8d6efcdb077e002af17092d

    SHA256

    355aaff67ac7605ff54c316fa8d4e41f2b4e44d152f94efa8ec0ba9b82fd1758

    SHA512

    3b1ee26408ab34b509fd1bd18798e3491ad0d19132f800afefcf8a44ac23db28dabab628f1bf8efbf0146f0531ca90505905ce3e3a5a04b50c36548e66982608

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/376-0-0x00000000005E0000-0x00000000005E6000-memory.dmp

    Filesize

    24KB

  • memory/376-1-0x00000000005E0000-0x00000000005E6000-memory.dmp

    Filesize

    24KB

  • memory/376-2-0x0000000000600000-0x0000000000606000-memory.dmp

    Filesize

    24KB

  • memory/5116-17-0x0000000000530000-0x0000000000536000-memory.dmp

    Filesize

    24KB

  • memory/5116-23-0x0000000000510000-0x0000000000516000-memory.dmp

    Filesize

    24KB