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Analysis

  • max time kernel
    149s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/04/2024, 18:24

General

  • Target

    0920b2c58b4ddbefa2e0652a47a5644f30763cb6d94f98d02a239d88aa0f1531.exe

  • Size

    204KB

  • MD5

    e86b88fe421fe3aab1849e4e9017440b

  • SHA1

    e91c5cab5024ff41f170066752ac08cae336e20b

  • SHA256

    0920b2c58b4ddbefa2e0652a47a5644f30763cb6d94f98d02a239d88aa0f1531

  • SHA512

    00149656d245a602a2d177ff822fc282c9f7fda4a41b47a993eba39db173ee97b55686f7588f82032c85ebb5c878100986a6dff2b594f2122b48af81867070a4

  • SSDEEP

    1536:W/+Oo8Ho1vzxHwxz5xNy3tQ9CW5EZWHakMwP9W6uXNh9h1AWa11GBPIdRONd+w6y:6Ho1uJ0tQ9nLHbB9WTk9+JgqmltL2

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 27 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0920b2c58b4ddbefa2e0652a47a5644f30763cb6d94f98d02a239d88aa0f1531.exe
    "C:\Users\Admin\AppData\Local\Temp\0920b2c58b4ddbefa2e0652a47a5644f30763cb6d94f98d02a239d88aa0f1531.exe"
    1⤵
    • Modifies visiblity of hidden/system files in Explorer
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2760
    • C:\Users\Admin\cttos.exe
      "C:\Users\Admin\cttos.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:2268

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\cttos.exe

    Filesize

    204KB

    MD5

    9b121bf85b237b5a850710fc87c4b793

    SHA1

    fd059bd97481d7af3a693d18b0704862e7490b73

    SHA256

    acb1def22c3bb0e181af550580bd26f416af24be4cbeee073ef30aa470de0d1f

    SHA512

    289c2267f13e8a60eba9065e88cef0e7a3b7a25ccf15149ae72bc1b6a3242de299e3553ed47ed851c39d4a7ab8cf07cad34679412c258362d896f7ee3fd2d537