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Analysis

  • max time kernel
    127s
  • max time network
    129s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    17/04/2024, 11:41

General

  • Target

    50f655b0e749f344954d4fcaeaa73cb90127cb43a134931d6d2c0b03760a0af8.exe

  • Size

    817KB

  • MD5

    bf761c4b9d4e53c986ac7879ee109d31

  • SHA1

    cc627662fa09682b7a3578db810632ff5a6d4f74

  • SHA256

    50f655b0e749f344954d4fcaeaa73cb90127cb43a134931d6d2c0b03760a0af8

  • SHA512

    f16cfa5b1d7bedaedee9d8ed6b9854c17100d76e05dec5ec9fc294462ed7c427d2e6351012615353bde50182f5a8d802d616bf7d84139e1d6b599963b08decd4

  • SSDEEP

    12288:HX4f0LXn6gy2JB4/xqEh+fjOcjclijLWNQqLLBWifXLelTI7u0P8pkAwL+4p:3Xvyb/xzhcrszNQqLtWiSlTI7u0PAwRp

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 27 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 19 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
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 30 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\taskhost.exe
    "taskhost.exe"
    1⤵
      PID:1244
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1368
      • C:\Windows\Explorer.EXE
        C:\Windows\Explorer.EXE
        1⤵
          PID:1408
          • C:\Users\Admin\AppData\Local\Temp\50f655b0e749f344954d4fcaeaa73cb90127cb43a134931d6d2c0b03760a0af8.exe
            "C:\Users\Admin\AppData\Local\Temp\50f655b0e749f344954d4fcaeaa73cb90127cb43a134931d6d2c0b03760a0af8.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:1736
        • C:\Windows\system32\DllHost.exe
          C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
          1⤵
            PID:1704

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\pxna.exe

            Filesize

            97KB

            MD5

            a4726339ba6e66c57134bece65fd72fc

            SHA1

            13bb1d913a53b27cd890f021cf8076d15e71f2ce

            SHA256

            f063f1dec9a4bac521dc07604f6d8c35c5f79f4f218644d5ea3376844690d74e

            SHA512

            d4aa496de2472baaf8aea6de23cc6ca44e308706c4eaa3e45459b72c78266cbb4e24ceff114e7aefca26580c647e9e6455df0baa49a01ee6452f6da174181e1c

          • memory/1244-6-0x0000000001CA0000-0x0000000001CA2000-memory.dmp

            Filesize

            8KB

          • memory/1736-35-0x0000000001D60000-0x0000000002E1A000-memory.dmp

            Filesize

            16.7MB

          • memory/1736-4-0x0000000001D60000-0x0000000002E1A000-memory.dmp

            Filesize

            16.7MB

          • memory/1736-2-0x0000000001D60000-0x0000000002E1A000-memory.dmp

            Filesize

            16.7MB

          • memory/1736-5-0x0000000001D60000-0x0000000002E1A000-memory.dmp

            Filesize

            16.7MB

          • memory/1736-9-0x0000000001D60000-0x0000000002E1A000-memory.dmp

            Filesize

            16.7MB

          • memory/1736-12-0x0000000001D60000-0x0000000002E1A000-memory.dmp

            Filesize

            16.7MB

          • memory/1736-22-0x0000000004F50000-0x0000000004F52000-memory.dmp

            Filesize

            8KB

          • memory/1736-21-0x0000000001D60000-0x0000000002E1A000-memory.dmp

            Filesize

            16.7MB

          • memory/1736-23-0x00000000051E0000-0x00000000051E1000-memory.dmp

            Filesize

            4KB

          • memory/1736-27-0x0000000004F50000-0x0000000004F52000-memory.dmp

            Filesize

            8KB

          • memory/1736-25-0x0000000001D60000-0x0000000002E1A000-memory.dmp

            Filesize

            16.7MB

          • memory/1736-29-0x00000000051E0000-0x00000000051E1000-memory.dmp

            Filesize

            4KB

          • memory/1736-24-0x0000000001D60000-0x0000000002E1A000-memory.dmp

            Filesize

            16.7MB

          • memory/1736-30-0x0000000001D60000-0x0000000002E1A000-memory.dmp

            Filesize

            16.7MB

          • memory/1736-32-0x0000000001D60000-0x0000000002E1A000-memory.dmp

            Filesize

            16.7MB

          • memory/1736-33-0x0000000001D60000-0x0000000002E1A000-memory.dmp

            Filesize

            16.7MB

          • memory/1736-36-0x0000000001D60000-0x0000000002E1A000-memory.dmp

            Filesize

            16.7MB

          • memory/1736-0-0x0000000000400000-0x00000000004CF000-memory.dmp

            Filesize

            828KB

          • memory/1736-67-0x0000000001D60000-0x0000000002E1A000-memory.dmp

            Filesize

            16.7MB

          • memory/1736-39-0x0000000001D60000-0x0000000002E1A000-memory.dmp

            Filesize

            16.7MB

          • memory/1736-41-0x0000000001D60000-0x0000000002E1A000-memory.dmp

            Filesize

            16.7MB

          • memory/1736-48-0x0000000001D60000-0x0000000002E1A000-memory.dmp

            Filesize

            16.7MB

          • memory/1736-54-0x0000000005B50000-0x0000000005B52000-memory.dmp

            Filesize

            8KB

          • memory/1736-56-0x00000000062A0000-0x00000000062A1000-memory.dmp

            Filesize

            4KB

          • memory/1736-57-0x0000000001D60000-0x0000000002E1A000-memory.dmp

            Filesize

            16.7MB

          • memory/1736-60-0x0000000001D60000-0x0000000002E1A000-memory.dmp

            Filesize

            16.7MB

          • memory/1736-63-0x0000000001D60000-0x0000000002E1A000-memory.dmp

            Filesize

            16.7MB

          • memory/1736-65-0x0000000001D60000-0x0000000002E1A000-memory.dmp

            Filesize

            16.7MB

          • memory/1736-38-0x0000000001D60000-0x0000000002E1A000-memory.dmp

            Filesize

            16.7MB

          • memory/1736-68-0x0000000001D60000-0x0000000002E1A000-memory.dmp

            Filesize

            16.7MB

          • memory/1736-71-0x0000000001D60000-0x0000000002E1A000-memory.dmp

            Filesize

            16.7MB

          • memory/1736-78-0x0000000001D60000-0x0000000002E1A000-memory.dmp

            Filesize

            16.7MB

          • memory/1736-92-0x0000000001D60000-0x0000000002E1A000-memory.dmp

            Filesize

            16.7MB

          • memory/1736-97-0x0000000004F50000-0x0000000004F52000-memory.dmp

            Filesize

            8KB

          • memory/1736-114-0x0000000005B50000-0x0000000005B52000-memory.dmp

            Filesize

            8KB

          • memory/1736-1-0x0000000001D60000-0x0000000002E1A000-memory.dmp

            Filesize

            16.7MB