Analysis

  • max time kernel
    123s
  • max time network
    127s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    29-05-2024 18:24

General

  • Target

    063734b5364e6b21e612eab023e33db68b55e2572ab2de11b6ae47cb6fac7a78.exe

  • Size

    97KB

  • MD5

    631f0e7280c331a270d5609f0a5702e6

  • SHA1

    406dabea70eb3d331cc04fcc605976b2f0a093a7

  • SHA256

    063734b5364e6b21e612eab023e33db68b55e2572ab2de11b6ae47cb6fac7a78

  • SHA512

    c68d6316445995f3033cb56add5e9b403d4554a016ddff23c6176e199b648f1eef9791de33516fadd7c967bfe93399771f519a2ac21714b4ac0210f33096cbc4

  • SSDEEP

    3072:ws8/vJLndEO5zTEKJ8r3ljMp9K9ENXQ+0FR:0xLd/5zTDolj+9KAr

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
  • Detects executables packed with Sality Polymorphic Code Generator or Simple Poly Engine or Sality 31 IoCs
  • UPX dump on OEP (original entry point) 31 IoCs
  • UPX packed file 31 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 21 IoCs

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

  • Drops autorun.inf file 1 TTPs 2 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).

  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 31 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    1⤵
      PID:1104
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1156
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
          PID:1188
          • C:\Users\Admin\AppData\Local\Temp\063734b5364e6b21e612eab023e33db68b55e2572ab2de11b6ae47cb6fac7a78.exe
            "C:\Users\Admin\AppData\Local\Temp\063734b5364e6b21e612eab023e33db68b55e2572ab2de11b6ae47cb6fac7a78.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:1936
        • C:\Windows\system32\DllHost.exe
          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
          1⤵
            PID:1996

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\wysv.exe

            Filesize

            97KB

            MD5

            bdd76cf8d031470950a80cdcb54299f4

            SHA1

            89f247f65b5c1f0b11a78bdeb8ee22ff97f7593d

            SHA256

            dbf2d026f08084fab3d5adc649b81cd7fc23ff3a2a8f3e5dd3fb9e18ed8b6afc

            SHA512

            8444bdb01fee95a3de29d11f32afb6548b138533aa027215bdd41e01cdbd5bda339ab17e8b683e7f450ad11deae48f1ab480f6bd27d117f14d99b359d57705d9

          • memory/1104-6-0x0000000000410000-0x0000000000412000-memory.dmp

            Filesize

            8KB

          • memory/1936-35-0x0000000000630000-0x00000000016EA000-memory.dmp

            Filesize

            16.7MB

          • memory/1936-87-0x00000000030F0000-0x00000000030F2000-memory.dmp

            Filesize

            8KB

          • memory/1936-16-0x00000000035D0000-0x00000000035D1000-memory.dmp

            Filesize

            4KB

          • memory/1936-15-0x00000000030F0000-0x00000000030F2000-memory.dmp

            Filesize

            8KB

          • memory/1936-3-0x0000000000630000-0x00000000016EA000-memory.dmp

            Filesize

            16.7MB

          • memory/1936-5-0x0000000000630000-0x00000000016EA000-memory.dmp

            Filesize

            16.7MB

          • memory/1936-21-0x00000000030F0000-0x00000000030F2000-memory.dmp

            Filesize

            8KB

          • memory/1936-20-0x00000000030F0000-0x00000000030F2000-memory.dmp

            Filesize

            8KB

          • memory/1936-0-0x0000000000400000-0x0000000000412000-memory.dmp

            Filesize

            72KB

          • memory/1936-19-0x0000000000630000-0x00000000016EA000-memory.dmp

            Filesize

            16.7MB

          • memory/1936-22-0x0000000000630000-0x00000000016EA000-memory.dmp

            Filesize

            16.7MB

          • memory/1936-23-0x0000000000630000-0x00000000016EA000-memory.dmp

            Filesize

            16.7MB

          • memory/1936-26-0x0000000000630000-0x00000000016EA000-memory.dmp

            Filesize

            16.7MB

          • memory/1936-25-0x0000000000630000-0x00000000016EA000-memory.dmp

            Filesize

            16.7MB

          • memory/1936-24-0x0000000000630000-0x00000000016EA000-memory.dmp

            Filesize

            16.7MB

          • memory/1936-32-0x0000000000630000-0x00000000016EA000-memory.dmp

            Filesize

            16.7MB

          • memory/1936-33-0x0000000000630000-0x00000000016EA000-memory.dmp

            Filesize

            16.7MB

          • memory/1936-34-0x0000000000630000-0x00000000016EA000-memory.dmp

            Filesize

            16.7MB

          • memory/1936-4-0x0000000000630000-0x00000000016EA000-memory.dmp

            Filesize

            16.7MB

          • memory/1936-18-0x00000000035D0000-0x00000000035D1000-memory.dmp

            Filesize

            4KB

          • memory/1936-49-0x0000000000630000-0x00000000016EA000-memory.dmp

            Filesize

            16.7MB

          • memory/1936-42-0x0000000000630000-0x00000000016EA000-memory.dmp

            Filesize

            16.7MB

          • memory/1936-43-0x0000000000630000-0x00000000016EA000-memory.dmp

            Filesize

            16.7MB

          • memory/1936-44-0x0000000000630000-0x00000000016EA000-memory.dmp

            Filesize

            16.7MB

          • memory/1936-47-0x0000000000630000-0x00000000016EA000-memory.dmp

            Filesize

            16.7MB

          • memory/1936-38-0x0000000000630000-0x00000000016EA000-memory.dmp

            Filesize

            16.7MB

          • memory/1936-53-0x0000000000630000-0x00000000016EA000-memory.dmp

            Filesize

            16.7MB

          • memory/1936-57-0x0000000000630000-0x00000000016EA000-memory.dmp

            Filesize

            16.7MB

          • memory/1936-59-0x0000000000630000-0x00000000016EA000-memory.dmp

            Filesize

            16.7MB

          • memory/1936-60-0x0000000000630000-0x00000000016EA000-memory.dmp

            Filesize

            16.7MB

          • memory/1936-63-0x0000000000630000-0x00000000016EA000-memory.dmp

            Filesize

            16.7MB

          • memory/1936-64-0x0000000000630000-0x00000000016EA000-memory.dmp

            Filesize

            16.7MB

          • memory/1936-70-0x0000000000630000-0x00000000016EA000-memory.dmp

            Filesize

            16.7MB

          • memory/1936-71-0x0000000000630000-0x00000000016EA000-memory.dmp

            Filesize

            16.7MB

          • memory/1936-74-0x0000000000630000-0x00000000016EA000-memory.dmp

            Filesize

            16.7MB

          • memory/1936-75-0x0000000000630000-0x00000000016EA000-memory.dmp

            Filesize

            16.7MB

          • memory/1936-36-0x0000000000630000-0x00000000016EA000-memory.dmp

            Filesize

            16.7MB

          • memory/1936-1-0x0000000000630000-0x00000000016EA000-memory.dmp

            Filesize

            16.7MB