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Analysis

  • max time kernel
    151s
  • max time network
    33s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    05/12/2022, 12:57

General

  • Target

    a9076c068b2b436cb4f2cf9db7a6cafd977d64b1c932bd0794dc5daee930fa83.exe

  • Size

    100KB

  • MD5

    3b90c5b38f300f3aafc7c85177e5bd87

  • SHA1

    d2f13db95048a49680870c968b7c7f9f6c740915

  • SHA256

    a9076c068b2b436cb4f2cf9db7a6cafd977d64b1c932bd0794dc5daee930fa83

  • SHA512

    d34d0ec361dbd87ac1d1bbb51148379a232c606b2c6f44754e266290594e34634217740f02cc0fac653001e71467ba8bbd8e89cc2bb94c93e21f498ee9cfbd54

  • SSDEEP

    1536:3ADAUgxmFytW1KVEdIlhThFzB+BfdE1TjRGNwQmkjCX5J1If+zcyOYhGz6qE0TaQ:3lLmwVVEeD7zo6v8NjSJefqhVX0Ts

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 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 1 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 21 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:1284
      • C:\Users\Admin\AppData\Local\Temp\a9076c068b2b436cb4f2cf9db7a6cafd977d64b1c932bd0794dc5daee930fa83.exe
        "C:\Users\Admin\AppData\Local\Temp\a9076c068b2b436cb4f2cf9db7a6cafd977d64b1c932bd0794dc5daee930fa83.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:1224
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1192
      • C:\Windows\system32\taskhost.exe
        "taskhost.exe"
        1⤵
          PID:1120

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1224-54-0x0000000075931000-0x0000000075933000-memory.dmp

          Filesize

          8KB

        • memory/1224-55-0x0000000001D50000-0x0000000002DDE000-memory.dmp

          Filesize

          16.6MB

        • memory/1224-56-0x0000000000400000-0x0000000000413000-memory.dmp

          Filesize

          76KB

        • memory/1224-57-0x0000000074B71000-0x0000000074B73000-memory.dmp

          Filesize

          8KB

        • memory/1224-58-0x0000000001D50000-0x0000000002DDE000-memory.dmp

          Filesize

          16.6MB

        • memory/1224-59-0x00000000003D0000-0x00000000003D2000-memory.dmp

          Filesize

          8KB

        • memory/1224-60-0x0000000003E20000-0x0000000003E22000-memory.dmp

          Filesize

          8KB

        • memory/1224-61-0x0000000001D50000-0x0000000002DDE000-memory.dmp

          Filesize

          16.6MB

        • memory/1224-62-0x00000000003D0000-0x00000000003D2000-memory.dmp

          Filesize

          8KB

        • memory/1224-63-0x0000000003E20000-0x0000000003E22000-memory.dmp

          Filesize

          8KB