Analysis

  • max time kernel
    141s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240611-en
  • resource tags

    arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
  • submitted
    15-06-2024 16:25

General

  • Target

    fix-injector.exe

  • Size

    3.6MB

  • MD5

    c01178fa2626c8d717fde33e03a3876e

  • SHA1

    afee86588501928ae39eec90d6c1d6028f243689

  • SHA256

    18c0bba23af8256a5f9e3de3038555a6a706dddd0c24123c011c1a8aa4d78156

  • SHA512

    233744740883ab71ea7bb8c493db24c062e480f547cf13cd3210a3fa165368f7eb3cf908a6da3f6a5f81fbfe415cdfb03fb1ad38d6ff27ac9e8df417fe7ec7c0

  • SSDEEP

    98304:sdvPB9yZdnrBYwSsHrOfmjSctW70xGtat:uvpMZdnrBhl67m3t

Malware Config

Signatures

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

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

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Themida packer 13 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fix-injector.exe
    "C:\Users\Admin\AppData\Local\Temp\fix-injector.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Loads dropped DLL
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:2500
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c cls
      2⤵
        PID:2688
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c color 9
        2⤵
          PID:2724
        • C:\Windows\SoftwareDistribution\Download\fXILX.exe
          "C:\Windows\SoftwareDistribution\Download\fXILX.exe"
          2⤵
          • Sets service image path in registry
          • Executes dropped EXE
          • Suspicious behavior: LoadsDriver
          • Suspicious use of AdjustPrivilegeToken
          PID:2852

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • \Windows\SoftwareDistribution\Download\fXILX.exe
        Filesize

        100KB

        MD5

        03997b52220aa284bd6da2f39a82b002

        SHA1

        7aa87879a471cbda376914927a3b6b8274a6d642

        SHA256

        7873158c42440a31a986c1472c0982404f54325ccd0c8b3a6e63a707277945a2

        SHA512

        e7ccf9300166cb8c3d81153e9675240778a4910b2f503f8c2293c273f42eee6fe0841d66fe0baa91d9355392b06b85008921a75c90969d2b823d2092935efef9

      • memory/2500-3-0x000000013F2B0000-0x000000013FC37000-memory.dmp
        Filesize

        9.5MB

      • memory/2500-1-0x0000000077B10000-0x0000000077B12000-memory.dmp
        Filesize

        8KB

      • memory/2500-4-0x000000013F2B0000-0x000000013FC37000-memory.dmp
        Filesize

        9.5MB

      • memory/2500-7-0x000000013F2B0000-0x000000013FC37000-memory.dmp
        Filesize

        9.5MB

      • memory/2500-5-0x000000013F2B0000-0x000000013FC37000-memory.dmp
        Filesize

        9.5MB

      • memory/2500-0-0x000000013F2B0000-0x000000013FC37000-memory.dmp
        Filesize

        9.5MB

      • memory/2500-6-0x000000013F2B0000-0x000000013FC37000-memory.dmp
        Filesize

        9.5MB

      • memory/2500-2-0x000000013F2B0000-0x000000013FC37000-memory.dmp
        Filesize

        9.5MB

      • memory/2500-16-0x000000013F2B0000-0x000000013FC37000-memory.dmp
        Filesize

        9.5MB

      • memory/2500-17-0x000000013F2B0000-0x000000013FC37000-memory.dmp
        Filesize

        9.5MB

      • memory/2500-18-0x000000013F2B0000-0x000000013FC37000-memory.dmp
        Filesize

        9.5MB

      • memory/2500-19-0x000000013F2B0000-0x000000013FC37000-memory.dmp
        Filesize

        9.5MB

      • memory/2500-21-0x000000013F2B0000-0x000000013FC37000-memory.dmp
        Filesize

        9.5MB

      • memory/2500-26-0x000000013F2B0000-0x000000013FC37000-memory.dmp
        Filesize

        9.5MB