Analysis

  • max time kernel
    149s
  • max time network
    134s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    20/10/2022, 23:47

General

  • Target

    41601820264ee1e7bd568efdb86e32b1f4d0e98f217658a31f99046d91511782.exe

  • Size

    581KB

  • MD5

    5b34dd1248897edf8a864662dd0103f9

  • SHA1

    ed321726ba0641ec0ec33e8b9546596274310c38

  • SHA256

    41601820264ee1e7bd568efdb86e32b1f4d0e98f217658a31f99046d91511782

  • SHA512

    154a4151318a80c96fd6bd8a1e4bf139d82d824c20eadd78816c369d380ee9c4bfb394ec56c68b8f3ef208648f29a9c8d2f5ec4fc39cbf7427e23c97648a7778

  • SSDEEP

    12288:N3jmKI2hBqrCAfhyZ0xHgh7D9FnFwZCSx4KE89aU/kOoSKk27K7T:JSUhBgnZxARxFKlD9nmQ

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
  • UPX packed file 5 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 22 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 5 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 Internet Explorer settings 1 TTPs 1 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 34 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 55 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    1⤵
      PID:1228
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      1⤵
        PID:1352
        • C:\Users\Admin\AppData\Local\Temp\41601820264ee1e7bd568efdb86e32b1f4d0e98f217658a31f99046d91511782.exe
          "C:\Users\Admin\AppData\Local\Temp\41601820264ee1e7bd568efdb86e32b1f4d0e98f217658a31f99046d91511782.exe"
          2⤵
          • Modifies firewall policy service
          • UAC bypass
          • Windows security bypass
          • 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 Internet Explorer settings
          • Modifies system certificate store
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          • System policy modification
          PID:1488
      • C:\Windows\system32\Dwm.exe
        "C:\Windows\system32\Dwm.exe"
        1⤵
          PID:1316
        • C:\Windows\system32\DllHost.exe
          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
          1⤵
            PID:1708
          • C:\Windows\system32\AUDIODG.EXE
            C:\Windows\system32\AUDIODG.EXE 0x2f8
            1⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:284

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • memory/1488-54-0x0000000075AD1000-0x0000000075AD3000-memory.dmp

            Filesize

            8KB

          • memory/1488-55-0x0000000002020000-0x00000000030AE000-memory.dmp

            Filesize

            16.6MB

          • memory/1488-56-0x0000000000400000-0x000000000059E000-memory.dmp

            Filesize

            1.6MB

          • memory/1488-57-0x0000000002020000-0x00000000030AE000-memory.dmp

            Filesize

            16.6MB

          • memory/1488-58-0x00000000003E0000-0x00000000003E2000-memory.dmp

            Filesize

            8KB

          • memory/1488-59-0x0000000002020000-0x00000000030AE000-memory.dmp

            Filesize

            16.6MB

          • memory/1488-60-0x0000000000400000-0x000000000059E000-memory.dmp

            Filesize

            1.6MB

          • memory/1488-61-0x00000000003E0000-0x00000000003E2000-memory.dmp

            Filesize

            8KB