Analysis

  • max time kernel
    136s
  • max time network
    119s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-02-2023 01:43

General

  • Target

    rufus-3.21.exe

  • Size

    1.3MB

  • MD5

    c2ab67a2561ac7f5add3256fe9bf85d4

  • SHA1

    cc5742d1f128c439740a56734c0e105f11a62fe6

  • SHA256

    d0554f1fc47407d678a4d8eace607272013c475033b636bfb1824ed6b1a22e36

  • SHA512

    936ffc79313ebd47ad41f13c5e922d77f4d58c43f0c4df3daf3caff06bf8ca0cb2586c63c685b1c60ffe9d24ce1815ea2fe02d09e4618ba7cef897dffaa01467

  • SSDEEP

    24576:3sqLY/SQe/JGy8U6epCdC4B4K8cvKBUlrVI3r+B4lz/i/ywNRhjSFOA:jYARGyLmCq4VciKlr2b+EjmzSN

Score
7/10

Malware Config

Signatures

  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Drops file in System32 directory 4 IoCs
  • Checks SCSI registry key(s) 3 TTPs 17 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 9 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\rufus-3.21.exe
    "C:\Users\Admin\AppData\Local\Temp\rufus-3.21.exe"
    1⤵
    • Checks whether UAC is enabled
    • Drops file in System32 directory
    • Checks SCSI registry key(s)
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:5000
  • C:\Windows\System32\vdsldr.exe
    C:\Windows\System32\vdsldr.exe -Embedding
    1⤵
      PID:4976
    • C:\Windows\System32\vds.exe
      C:\Windows\System32\vds.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:4912
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
      1⤵
        PID:3352
      • C:\Windows\system32\svchost.exe
        C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
        1⤵
          PID:1940

        Network

        MITRE ATT&CK Matrix ATT&CK v6

        Discovery

        System Information Discovery

        2
        T1082

        Query Registry

        1
        T1012

        Peripheral Device Discovery

        1
        T1120

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/5000-132-0x0000000000290000-0x0000000000676000-memory.dmp
          Filesize

          3.9MB

        • memory/5000-133-0x0000000000290000-0x0000000000676000-memory.dmp
          Filesize

          3.9MB