Analysis

  • max time kernel
    142s
  • max time network
    115s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240426-en
  • resource tags

    arch:x64arch:x86image:win11-20240426-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    26-05-2024 13:54

General

  • Target

    9cec62fb802376768ad3fc73ef78aa6f2d34ec683696e597536ebe2b5fcb798d.exe

  • Size

    6.3MB

  • MD5

    1306e81bc13677c04abe69a1d2ca4e12

  • SHA1

    71e0de1475bbdfd9d244613d733ef33cf531e89c

  • SHA256

    9cec62fb802376768ad3fc73ef78aa6f2d34ec683696e597536ebe2b5fcb798d

  • SHA512

    413f356c8f556e720b0677d88e1d4328a21983e6ffc0f1c49ac19bde9df5e787409e2d7520e557ee7eeee39377140bc2a756aa2eb959c7b397ac3a7b124f86f2

  • SSDEEP

    98304:vMlj6Zrx1GIpunUNmw6M47l6xhi91sq0Na3PNSw+i35dbX7MztyszU:EluZrf6nUeNlv91sFA3lEk5dbX7Mz8V

Malware Config

Signatures

  • Modifies firewall policy service 2 TTPs 1 IoCs
  • PrivateLoader

    PrivateLoader is a downloader sold as a pay-per-install malware distribution service.

  • 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
  • Looks up external IP address via web service 4 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in System32 directory 4 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9cec62fb802376768ad3fc73ef78aa6f2d34ec683696e597536ebe2b5fcb798d.exe
    "C:\Users\Admin\AppData\Local\Temp\9cec62fb802376768ad3fc73ef78aa6f2d34ec683696e597536ebe2b5fcb798d.exe"
    1⤵
    • Modifies firewall policy service
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Drops file in System32 directory
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    PID:1456
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
    1⤵
      PID:1136
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
      1⤵
        PID:4244

      Network

      MITRE ATT&CK Matrix ATT&CK v13

      Persistence

      Create or Modify System Process

      1
      T1543

      Windows Service

      1
      T1543.003

      Privilege Escalation

      Create or Modify System Process

      1
      T1543

      Windows Service

      1
      T1543.003

      Defense Evasion

      Modify Registry

      1
      T1112

      Virtualization/Sandbox Evasion

      1
      T1497

      Discovery

      Query Registry

      2
      T1012

      Virtualization/Sandbox Evasion

      1
      T1497

      System Information Discovery

      2
      T1082

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/1456-0-0x0000000140000000-0x0000000140C37000-memory.dmp
        Filesize

        12.2MB

      • memory/1456-4-0x00007FFAEC8B0000-0x00007FFAEC96D000-memory.dmp
        Filesize

        756KB

      • memory/1456-5-0x00007FFAEC8B0000-0x00007FFAEC96D000-memory.dmp
        Filesize

        756KB

      • memory/1456-3-0x00007FFAEC8B0000-0x00007FFAEC96D000-memory.dmp
        Filesize

        756KB

      • memory/1456-2-0x00007FFAEC8B0000-0x00007FFAEC96D000-memory.dmp
        Filesize

        756KB

      • memory/1456-6-0x00007FFAEC8B0000-0x00007FFAEC96D000-memory.dmp
        Filesize

        756KB

      • memory/1456-1-0x00007FFAEC8CA000-0x00007FFAEC8CB000-memory.dmp
        Filesize

        4KB

      • memory/1456-7-0x00007FFAEC8B0000-0x00007FFAEC96D000-memory.dmp
        Filesize

        756KB

      • memory/1456-9-0x0000000140000000-0x0000000140C37000-memory.dmp
        Filesize

        12.2MB

      • memory/1456-10-0x0000000140000000-0x0000000140C37000-memory.dmp
        Filesize

        12.2MB

      • memory/1456-8-0x0000000140000000-0x0000000140C37000-memory.dmp
        Filesize

        12.2MB

      • memory/1456-11-0x0000000140000000-0x0000000140C37000-memory.dmp
        Filesize

        12.2MB

      • memory/1456-19-0x0000000140000000-0x0000000140C37000-memory.dmp
        Filesize

        12.2MB

      • memory/1456-20-0x00007FFAEC8CA000-0x00007FFAEC8CB000-memory.dmp
        Filesize

        4KB