Analysis

  • max time kernel
    151s
  • max time network
    93s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    02/10/2022, 07:07

General

  • Target

    cb8386b04cab3ed15d1cfb2dc4f90f80dc0a30c9036c442f5f7d21a1cc3b440d.exe

  • Size

    97KB

  • MD5

    664286f3bd42af4918d2e9744cfaf740

  • SHA1

    1cbc1b15536d534b56e17815e94d5fce7bbff538

  • SHA256

    cb8386b04cab3ed15d1cfb2dc4f90f80dc0a30c9036c442f5f7d21a1cc3b440d

  • SHA512

    67bce8f6e4cdd6b15c717af9ceaa1b9537546769929d7c960e9fade308402d0ee2efe897e8ea2c22a0e2f09c10a24570579b16321e147b17989cb10adeb81823

  • SSDEEP

    3072:+190oIv0YrM+vGFZalNgyjCtmZhswNSh8fVw457k2:+rCcYr5vGFZaLucZhtNjdwE7

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

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 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 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 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 20 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:1276
      • C:\Users\Admin\AppData\Local\Temp\cb8386b04cab3ed15d1cfb2dc4f90f80dc0a30c9036c442f5f7d21a1cc3b440d.exe
        "C:\Users\Admin\AppData\Local\Temp\cb8386b04cab3ed15d1cfb2dc4f90f80dc0a30c9036c442f5f7d21a1cc3b440d.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
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        • System policy modification
        PID:1596
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1244
      • C:\Windows\system32\taskhost.exe
        "taskhost.exe"
        1⤵
          PID:1128

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1596-54-0x0000000074C91000-0x0000000074C93000-memory.dmp

          Filesize

          8KB

        • memory/1596-55-0x00000000005F0000-0x00000000016AA000-memory.dmp

          Filesize

          16.7MB

        • memory/1596-56-0x00000000740E1000-0x00000000740E3000-memory.dmp

          Filesize

          8KB

        • memory/1596-57-0x0000000000400000-0x0000000000412000-memory.dmp

          Filesize

          72KB

        • memory/1596-58-0x00000000005F0000-0x00000000016AA000-memory.dmp

          Filesize

          16.7MB

        • memory/1596-59-0x0000000003330000-0x0000000003332000-memory.dmp

          Filesize

          8KB

        • memory/1596-60-0x0000000000490000-0x0000000000492000-memory.dmp

          Filesize

          8KB

        • memory/1596-61-0x00000000005F0000-0x00000000016AA000-memory.dmp

          Filesize

          16.7MB

        • memory/1596-62-0x0000000003330000-0x0000000003332000-memory.dmp

          Filesize

          8KB

        • memory/1596-63-0x0000000000490000-0x0000000000492000-memory.dmp

          Filesize

          8KB