Analysis

  • max time kernel
    147s
  • max time network
    51s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    04/10/2022, 04:55

General

  • Target

    8c4f8b4234752a25388f6a29b0a64029bb816eeecd07f87fe9f40319e542f7eb.exe

  • Size

    332KB

  • MD5

    533b8dfc9af0766cde6d42427ec2b98d

  • SHA1

    c62118bcc06996516cc99973f18e18bda0f74dda

  • SHA256

    8c4f8b4234752a25388f6a29b0a64029bb816eeecd07f87fe9f40319e542f7eb

  • SHA512

    a8351c6b1d0f3a465d01a736c76a9a66826efc05f4015d03844d6f1b968424b5f233a4c9501be50d6ee5e7cd45994ab47601a32ac18b10d2669bbf099fa6a033

  • SSDEEP

    6144:5+1G7xnoJLiqmXHKopAF5cE0tnYrpZ4zytbLE:5+1G7xnoA7dpYgID4zkw

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.

  • Loads dropped DLL 1 IoCs
  • 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 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 15 IoCs
  • Suspicious use of AdjustPrivilegeToken 20 IoCs
  • Suspicious use of WriteProcessMemory 42 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    1⤵
      PID:1200
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      1⤵
        PID:1344
        • C:\Users\Admin\AppData\Local\Temp\8c4f8b4234752a25388f6a29b0a64029bb816eeecd07f87fe9f40319e542f7eb.exe
          "C:\Users\Admin\AppData\Local\Temp\8c4f8b4234752a25388f6a29b0a64029bb816eeecd07f87fe9f40319e542f7eb.exe"
          2⤵
          • Modifies firewall policy service
          • UAC bypass
          • Windows security bypass
          • Loads dropped DLL
          • 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:1444
      • C:\Windows\system32\Dwm.exe
        "C:\Windows\system32\Dwm.exe"
        1⤵
          PID:1304

        Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

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              Downloads

              • \Users\Admin\AppData\Roaming\Wplugin.dll

                Filesize

                108KB

                MD5

                8847a8302dacc1d6fca61f125c8fe8e0

                SHA1

                f399142bbf03660bee1df555ebbf3acc8f658cf0

                SHA256

                9c2726defa122089f8251fa104f76d66830f448774ab9bd634adbb6e492e3943

                SHA512

                2b028bb4139c352b80db1509d1a3f479a8ef7e9b3b73ddbf62e2d83d4e59adf4a0bd6b9d68409bc0b6fafb7a5f56844fbfed6d00b824a6b370689801ce1c837f

              • memory/1444-54-0x0000000075D71000-0x0000000075D73000-memory.dmp

                Filesize

                8KB

              • memory/1444-55-0x0000000001D60000-0x0000000002DEE000-memory.dmp

                Filesize

                16.6MB

              • memory/1444-57-0x0000000000400000-0x000000000043F000-memory.dmp

                Filesize

                252KB

              • memory/1444-58-0x0000000001D60000-0x0000000002DEE000-memory.dmp

                Filesize

                16.6MB

              • memory/1444-59-0x0000000000340000-0x0000000000342000-memory.dmp

                Filesize

                8KB

              • memory/1444-60-0x0000000004110000-0x0000000004112000-memory.dmp

                Filesize

                8KB

              • memory/1444-61-0x0000000001D60000-0x0000000002DEE000-memory.dmp

                Filesize

                16.6MB

              • memory/1444-62-0x0000000000340000-0x0000000000342000-memory.dmp

                Filesize

                8KB

              • memory/1444-63-0x0000000004110000-0x0000000004112000-memory.dmp

                Filesize

                8KB