Analysis

  • max time kernel
    141s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/11/2022, 12:14

General

  • Target

    16df02e5757511f4c15efd11ad21eed72da44a867f079868348cdb1cfd92dea1.exe

  • Size

    601KB

  • MD5

    9d2a59e71eef6ca077561aef4b4f5b4a

  • SHA1

    9a42c7a8f8d3d660a993a98fb4fc6d6b25cc0218

  • SHA256

    16df02e5757511f4c15efd11ad21eed72da44a867f079868348cdb1cfd92dea1

  • SHA512

    6cde03c543d37f425ee9dfc4803c62028b5b4150e110193abf66c57a02f64ec4579e9fd5394672db6e4a02b02c3a2e6165ce3cd6c9031b79abd935c48492b0f3

  • SSDEEP

    12288:xORNsuj7LM2e2Bl4St2AxKeAN+GKnvLof/9WraN0bfs3kZwD+ZAdr:xsNsmM2lBmSt2A+yTof/YrdfqkZwD4AN

Score
9/10

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops desktop.ini file(s) 2 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies system certificate store 2 TTPs 9 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\16df02e5757511f4c15efd11ad21eed72da44a867f079868348cdb1cfd92dea1.exe
    "C:\Users\Admin\AppData\Local\Temp\16df02e5757511f4c15efd11ad21eed72da44a867f079868348cdb1cfd92dea1.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks computer location settings
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:5044
    • C:\Users\Admin\AppData\Local\Temp\n4844\s4844.exe
      "C:\Users\Admin\AppData\Local\Temp\n4844\s4844.exe" 4c4ea8411ad7863d7125162f7RPyCbTrDH4AEusdKpOBiAAh5/S9iv+Yvu+P1LQISa2fZos1cPCcbzT+tiOtCib5ttPZAwWydqqzgEHktilywc0vy5NEn2/uJF6JvSiSzpFyvT5R80SqGp5rT4i3VIqUkY/pEdkPDdG0pY4qDviwNJl7btyiS7WFPkiYfGQ= /v "C:\Users\Admin\AppData\Local\Temp\16df02e5757511f4c15efd11ad21eed72da44a867f079868348cdb1cfd92dea1.exe"
      2⤵
      • Executes dropped EXE
      • Drops desktop.ini file(s)
      • Drops file in Windows directory
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1516

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\n4844\s4844.exe

          Filesize

          349KB

          MD5

          f42490846128abad3a6504a02c9ef12c

          SHA1

          017da52f785d1385ee7fd9a5bcb2550096166385

          SHA256

          19f929c13687b2af00ee10f0658333a1636002b185dac113a7a8182c29369951

          SHA512

          983e99e6cdbd86042a3b323bb4c4d0033614a0efd4997327e0fa942e4b56c76b8337ccb692b5a6879acc01fc7d1a7c0ed4b0195bfaff81e526587b0b1a638321

        • C:\Users\Admin\AppData\Local\Temp\n4844\s4844.exe

          Filesize

          349KB

          MD5

          f42490846128abad3a6504a02c9ef12c

          SHA1

          017da52f785d1385ee7fd9a5bcb2550096166385

          SHA256

          19f929c13687b2af00ee10f0658333a1636002b185dac113a7a8182c29369951

          SHA512

          983e99e6cdbd86042a3b323bb4c4d0033614a0efd4997327e0fa942e4b56c76b8337ccb692b5a6879acc01fc7d1a7c0ed4b0195bfaff81e526587b0b1a638321

        • memory/1516-135-0x00007FF815880000-0x00007FF8162B6000-memory.dmp

          Filesize

          10.2MB

        • memory/1516-136-0x0000000000F1A000-0x0000000000F1F000-memory.dmp

          Filesize

          20KB

        • memory/1516-137-0x0000000000F1A000-0x0000000000F1F000-memory.dmp

          Filesize

          20KB

        • memory/1516-138-0x0000000000F1A000-0x0000000000F1F000-memory.dmp

          Filesize

          20KB