Analysis

  • max time kernel
    594s
  • max time network
    603s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-05-2024 08:18

General

  • Target

    Techsmith Camtasia Hook/winmm.dll

  • Size

    3.3MB

  • MD5

    65fbcfeeeb2349543b40852a071a57af

  • SHA1

    55e725af29707b5fc2e6223eb7221a48119e22c6

  • SHA256

    47e1ca2cc1f871a61341f4db4cb825713f1526aca645f8437153c537e6b4772c

  • SHA512

    298b9b354611a835f6a818fccc5f5b5e68b423a013e45d804e595d02e9284f45136437372c8581602bc2c42c57cd71e79a308d9614cac0601e086368910aaa2f

  • SSDEEP

    49152:wyeiKWFQRV+/Lvmf1pH4oaOdHoNIY97d84+Uyxm2nAcxm1Sk+VCG/1+P8X81Q0:wRYCGOdIdT84+zmGNEI1CjPe81Q

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Themida packer 4 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe "C:\Users\Admin\AppData\Local\Temp\Techsmith Camtasia Hook\winmm.dll",#1
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    PID:3216
  • 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 --no-appcompat-clear --mojo-platform-channel-handle=3692 --field-trial-handle=3192,i,2785050981002401924,4037047756083432660,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:3568
    • 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 --no-appcompat-clear --mojo-platform-channel-handle=1400 --field-trial-handle=3192,i,2785050981002401924,4037047756083432660,262144 --variations-seed-version /prefetch:8
      1⤵
        PID:4008

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/3216-0-0x00007FFED7EB0000-0x00007FFED8670000-memory.dmp

        Filesize

        7.8MB

      • memory/3216-1-0x00007FFEF6110000-0x00007FFEF6112000-memory.dmp

        Filesize

        8KB

      • memory/3216-2-0x00007FFED7EB0000-0x00007FFED8670000-memory.dmp

        Filesize

        7.8MB

      • memory/3216-3-0x00007FFED7EB0000-0x00007FFED8670000-memory.dmp

        Filesize

        7.8MB

      • memory/3216-4-0x00007FFED7EB0000-0x00007FFED8670000-memory.dmp

        Filesize

        7.8MB

      • memory/3216-6-0x00007FFEF6070000-0x00007FFEF6265000-memory.dmp

        Filesize

        2.0MB