Analysis

  • max time kernel
    153s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 17:16

General

  • Target

    8b8988c52bca7459b11336c2667cd7d68c0c0e0ef1bcf15c929759bf2dd829f4.exe

  • Size

    214KB

  • MD5

    4218107532fd7604976f9d60c6682707

  • SHA1

    9d00d33c6b7102a2e342a3a59345c729a231cd0a

  • SHA256

    8b8988c52bca7459b11336c2667cd7d68c0c0e0ef1bcf15c929759bf2dd829f4

  • SHA512

    0d2fd9ab306454ba7092beb19b4607b567d490b4425e20455d4415f035ab5afb7ba9e8458386d8a9269b053ad22867b2a2d531db4769ba7455a116ba0a301004

  • SSDEEP

    3072:2nz2z/jMwe8pco9+qol6WpJ/HAUedDToSZrwPslSkxJCcm7gDL:9z/V+SWPItDTdrvlSu4JgDL

Malware Config

Extracted

Family

sality

C2

http://89.119.67.154/testo5/

http://kukutrustnet777.info/home.gif

http://kukutrustnet888.info/home.gif

http://kukutrustnet987.info/home.gif

http://www.klkjwre9fqwieluoi.info/

http://kukutrustnet777888.info/

Signatures

  • Modifies firewall policy service 2 TTPs 3 IoCs
  • Sality

    Sality is backdoor written in C++, first discovered in 2003.

  • UAC bypass 3 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 6 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Disables Task Manager via registry modification
  • UPX packed file 3 IoCs

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

  • Windows security modification 2 TTPs 7 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 14 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops autorun.inf file 1 TTPs 1 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Drops file in Program Files directory 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 20 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 21 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 42 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1196
      • C:\Users\Admin\AppData\Local\Temp\8b8988c52bca7459b11336c2667cd7d68c0c0e0ef1bcf15c929759bf2dd829f4.exe
        "C:\Users\Admin\AppData\Local\Temp\8b8988c52bca7459b11336c2667cd7d68c0c0e0ef1bcf15c929759bf2dd829f4.exe"
        2⤵
        • Modifies firewall policy service
        • UAC bypass
        • Windows security bypass
        • Disables RegEdit via registry modification
        • Windows security modification
        • Checks whether UAC is enabled
        • Enumerates connected drives
        • Drops autorun.inf file
        • Drops file in Program Files directory
        • Drops file in Windows directory
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        • System policy modification
        PID:1268
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1172
      • C:\Windows\system32\taskhost.exe
        "taskhost.exe"
        1⤵
          PID:1116

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1268-54-0x0000000074FD1000-0x0000000074FD3000-memory.dmp

          Filesize

          8KB

        • memory/1268-55-0x0000000001F90000-0x000000000301E000-memory.dmp

          Filesize

          16.6MB

        • memory/1268-56-0x0000000000400000-0x0000000000438000-memory.dmp

          Filesize

          224KB

        • memory/1268-57-0x00000000002C0000-0x00000000002F8000-memory.dmp

          Filesize

          224KB

        • memory/1268-58-0x0000000001F90000-0x000000000301E000-memory.dmp

          Filesize

          16.6MB

        • memory/1268-59-0x00000000003F0000-0x00000000003F2000-memory.dmp

          Filesize

          8KB

        • memory/1268-60-0x0000000074281000-0x0000000074283000-memory.dmp

          Filesize

          8KB

        • memory/1268-61-0x0000000006830000-0x0000000006832000-memory.dmp

          Filesize

          8KB

        • memory/1268-62-0x0000000001F90000-0x000000000301E000-memory.dmp

          Filesize

          16.6MB

        • memory/1268-63-0x00000000003F0000-0x00000000003F2000-memory.dmp

          Filesize

          8KB

        • memory/1268-64-0x0000000006830000-0x0000000006832000-memory.dmp

          Filesize

          8KB

        • memory/1268-65-0x0000000000400000-0x0000000000438000-memory.dmp

          Filesize

          224KB

        • memory/1268-66-0x00000000002C0000-0x00000000002F8000-memory.dmp

          Filesize

          224KB