Analysis

  • max time kernel
    156s
  • max time network
    44s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    14-10-2022 11:22

General

  • Target

    b7db4549ded12c51f040d6e92bd0174a49958b17fc0d487afb9fd12b73ae33fd.exe

  • Size

    388KB

  • MD5

    7406ddd0fb46abf768f8e6198e62cb10

  • SHA1

    ac35a19a54b0d21b07c7f0ea04cec78c2501082b

  • SHA256

    b7db4549ded12c51f040d6e92bd0174a49958b17fc0d487afb9fd12b73ae33fd

  • SHA512

    fba8e157e317196e63f92c0cfde6d6f5ef27542b7ee3a20022b43a67d555e63e2bee08037ef35b8417c3c1e8bb6c1190327487539b70916295a076bd42a71ba1

  • SSDEEP

    12288:sx9KuhXf5i2TSo7FGgJhGQWKH1shbuYv/:g9pBaolJ7WKH1sj

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 2 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 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 19 IoCs
  • Suspicious use of WriteProcessMemory 42 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\Dwm.exe
    "C:\Windows\system32\Dwm.exe"
    1⤵
      PID:1224
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      1⤵
        PID:1260
        • C:\Users\Admin\AppData\Local\Temp\b7db4549ded12c51f040d6e92bd0174a49958b17fc0d487afb9fd12b73ae33fd.exe
          "C:\Users\Admin\AppData\Local\Temp\b7db4549ded12c51f040d6e92bd0174a49958b17fc0d487afb9fd12b73ae33fd.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:2036
      • C:\Windows\system32\taskhost.exe
        "taskhost.exe"
        1⤵
          PID:1148

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • \Users\Admin\AppData\Local\Temp\nso6E02.tmp\UserInfo.dll

          Filesize

          4KB

          MD5

          419d642fe3436fda8bb22eea9c37a6ca

          SHA1

          c1644131b880c6e03f14de3c79efd27093a77908

          SHA256

          25c4f65b02eca4ad897d7a623b3ca1290bac836e98ab5ee5f6c527dfb6a41dd7

          SHA512

          29df088e3b5189efd6fbeebc2f23c5850303d40fe5331cd336bb852d986f9ab66f7bcd963ebf8c4e4eea7d49a6590027490d651a3e4781024c7983a2c456a337

        • \Users\Admin\AppData\Local\Temp\nso6E02.tmp\UserInfo.dll

          Filesize

          4KB

          MD5

          419d642fe3436fda8bb22eea9c37a6ca

          SHA1

          c1644131b880c6e03f14de3c79efd27093a77908

          SHA256

          25c4f65b02eca4ad897d7a623b3ca1290bac836e98ab5ee5f6c527dfb6a41dd7

          SHA512

          29df088e3b5189efd6fbeebc2f23c5850303d40fe5331cd336bb852d986f9ab66f7bcd963ebf8c4e4eea7d49a6590027490d651a3e4781024c7983a2c456a337

        • memory/2036-54-0x0000000000400000-0x0000000000443000-memory.dmp

          Filesize

          268KB

        • memory/2036-55-0x0000000076151000-0x0000000076153000-memory.dmp

          Filesize

          8KB

        • memory/2036-56-0x00000000020C0000-0x000000000314E000-memory.dmp

          Filesize

          16.6MB

        • memory/2036-57-0x0000000000240000-0x0000000000283000-memory.dmp

          Filesize

          268KB

        • memory/2036-58-0x00000000020C0000-0x000000000314E000-memory.dmp

          Filesize

          16.6MB

        • memory/2036-59-0x00000000002D0000-0x00000000002D2000-memory.dmp

          Filesize

          8KB

        • memory/2036-62-0x00000000020C0000-0x000000000314E000-memory.dmp

          Filesize

          16.6MB

        • memory/2036-63-0x00000000002D0000-0x00000000002D2000-memory.dmp

          Filesize

          8KB

        • memory/2036-64-0x0000000000400000-0x0000000000443000-memory.dmp

          Filesize

          268KB