Analysis

  • max time kernel
    149s
  • max time network
    98s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240426-en
  • resource tags

    arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    09-06-2024 12:28

General

  • Target

    nyxia external.exe

  • Size

    3.3MB

  • MD5

    51393a0442f9c01f59a597b1218887c8

  • SHA1

    2b48afc21ab4a30dd6b8ce4d8907c9062fb4d95c

  • SHA256

    19bddef132af20da74c89fb263b1ae89f9762eba06382e69cccdfc9048e45917

  • SHA512

    f492083b0b3cb86b4367da9fd7040b49de9d9643fef7f61b77815f761b0bec9eae3a61fdebe549ff1f9cf97c8b53cd7f7c44df4501f9a0f9baca87b502ac9de2

  • SSDEEP

    49152:ZPk827hGqT5yCL8FBo+IvuxVDK5rdynF4hNhLus6E9ku/8vpsS2vaovBlZ58aotR:Z88ypGOV0sPuvpsSIaM50tZjlBtB4I

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 6 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\nyxia external.exe
    "C:\Users\Admin\AppData\Local\Temp\nyxia external.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    PID:3840
  • C:\Windows\system32\taskmgr.exe
    "C:\Windows\system32\taskmgr.exe" /0
    1⤵
    • Checks SCSI registry key(s)
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:3972
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:4316

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/3840-0-0x00007FF69E650000-0x00007FF69EF51000-memory.dmp

      Filesize

      9.0MB

    • memory/3840-1-0x00007FFC7DA87000-0x00007FFC7DA89000-memory.dmp

      Filesize

      8KB

    • memory/3840-2-0x00007FF69E650000-0x00007FF69EF51000-memory.dmp

      Filesize

      9.0MB

    • memory/3840-3-0x00007FF69E650000-0x00007FF69EF51000-memory.dmp

      Filesize

      9.0MB

    • memory/3840-4-0x00007FF69E650000-0x00007FF69EF51000-memory.dmp

      Filesize

      9.0MB

    • memory/3840-5-0x00007FF69E650000-0x00007FF69EF51000-memory.dmp

      Filesize

      9.0MB

    • memory/3840-6-0x00007FF69E650000-0x00007FF69EF51000-memory.dmp

      Filesize

      9.0MB

    • memory/3972-7-0x00000296582B0000-0x00000296582B1000-memory.dmp

      Filesize

      4KB

    • memory/3972-9-0x00000296582B0000-0x00000296582B1000-memory.dmp

      Filesize

      4KB

    • memory/3972-8-0x00000296582B0000-0x00000296582B1000-memory.dmp

      Filesize

      4KB

    • memory/3972-13-0x00000296582B0000-0x00000296582B1000-memory.dmp

      Filesize

      4KB

    • memory/3972-19-0x00000296582B0000-0x00000296582B1000-memory.dmp

      Filesize

      4KB

    • memory/3972-18-0x00000296582B0000-0x00000296582B1000-memory.dmp

      Filesize

      4KB

    • memory/3972-17-0x00000296582B0000-0x00000296582B1000-memory.dmp

      Filesize

      4KB

    • memory/3972-16-0x00000296582B0000-0x00000296582B1000-memory.dmp

      Filesize

      4KB

    • memory/3972-15-0x00000296582B0000-0x00000296582B1000-memory.dmp

      Filesize

      4KB

    • memory/3972-14-0x00000296582B0000-0x00000296582B1000-memory.dmp

      Filesize

      4KB