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Analysis

  • max time kernel
    144s
  • max time network
    48s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    06/11/2022, 18:45

General

  • Target

    b9ca5e641ea25590c2eabc53cebdbf38f19f5c10c81e2b7c90761910de253759.exe

  • Size

    144KB

  • MD5

    0c309cac018d98471faf31feff28e8e0

  • SHA1

    d62789b02b92a067bf4569f86cde6f939a3fd7a4

  • SHA256

    b9ca5e641ea25590c2eabc53cebdbf38f19f5c10c81e2b7c90761910de253759

  • SHA512

    44ce9659bbb15ac9c992c7bb52c9a1bf33fb971b02c093090529e7b4a8eba0d57be480d715f94784b10976662395bda4d3f2d691ec865a1a4b792c1440eaf511

  • SSDEEP

    3072:X6pyTK5LYYGEKZzTmq7u7vSZFXm0wqP6b/MnDlfFvaZ:X6py6LaWz7S7wqP6gDlRaZ

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
  • Disables RegEdit via registry modification 1 IoCs
  • Disables Task Manager via registry modification
  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Windows security modification 2 TTPs 7 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • 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 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 27 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:1208
      • C:\Users\Admin\AppData\Local\Temp\b9ca5e641ea25590c2eabc53cebdbf38f19f5c10c81e2b7c90761910de253759.exe
        "C:\Users\Admin\AppData\Local\Temp\b9ca5e641ea25590c2eabc53cebdbf38f19f5c10c81e2b7c90761910de253759.exe"
        2⤵
        • Modifies firewall policy service
        • UAC bypass
        • Windows security bypass
        • Disables RegEdit via registry modification
        • 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:1348
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1164
      • C:\Windows\system32\taskhost.exe
        "taskhost.exe"
        1⤵
          PID:1068

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1348-54-0x0000000075601000-0x0000000075603000-memory.dmp

          Filesize

          8KB

        • memory/1348-55-0x0000000002430000-0x00000000034BE000-memory.dmp

          Filesize

          16.6MB

        • memory/1348-57-0x0000000000100000-0x0000000000126000-memory.dmp

          Filesize

          152KB

        • memory/1348-56-0x0000000001000000-0x0000000001026000-memory.dmp

          Filesize

          152KB

        • memory/1348-58-0x0000000002430000-0x00000000034BE000-memory.dmp

          Filesize

          16.6MB

        • memory/1348-59-0x0000000000930000-0x0000000000932000-memory.dmp

          Filesize

          8KB

        • memory/1348-60-0x0000000002430000-0x00000000034BE000-memory.dmp

          Filesize

          16.6MB

        • memory/1348-61-0x0000000000930000-0x0000000000932000-memory.dmp

          Filesize

          8KB

        • memory/1348-62-0x0000000001000000-0x0000000001026000-memory.dmp

          Filesize

          152KB