Analysis

  • max time kernel
    147s
  • max time network
    43s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    14-10-2022 11:21

General

  • Target

    c5dc5eee5a0b78670a9a026d0e5cd9f19a764dcc6219570a9d3cd99941cddf23.exe

  • Size

    100KB

  • MD5

    73b896d673031ab63af27f55e72b79e0

  • SHA1

    733c5a731304cd086b0f53c9358031b41b4b410a

  • SHA256

    c5dc5eee5a0b78670a9a026d0e5cd9f19a764dcc6219570a9d3cd99941cddf23

  • SHA512

    dc85da0cece766094f630d080ec0f458e20d39ad1da6672645041299bd66f7f26377c150e8ab40eca084793d6056b02e365ba0a07e9b7062e97c7cc282754a68

  • SSDEEP

    3072:o3VOetIZyEtZnXmF/JIjBF9VkFFTi1z4b7aT1:o3V8XXj/YMRQ7aZ

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.

  • 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
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 20 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:1260
      • C:\Users\Admin\AppData\Local\Temp\c5dc5eee5a0b78670a9a026d0e5cd9f19a764dcc6219570a9d3cd99941cddf23.exe
        "C:\Users\Admin\AppData\Local\Temp\c5dc5eee5a0b78670a9a026d0e5cd9f19a764dcc6219570a9d3cd99941cddf23.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:1672
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1224
      • C:\Windows\system32\taskhost.exe
        "taskhost.exe"
        1⤵
          PID:1132

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1672-54-0x0000000075BD1000-0x0000000075BD3000-memory.dmp

          Filesize

          8KB

        • memory/1672-55-0x0000000001EF0000-0x0000000002F7E000-memory.dmp

          Filesize

          16.6MB

        • memory/1672-56-0x0000000000400000-0x0000000000415000-memory.dmp

          Filesize

          84KB

        • memory/1672-57-0x0000000001EF0000-0x0000000002F7E000-memory.dmp

          Filesize

          16.6MB

        • memory/1672-58-0x00000000003F0000-0x00000000003F2000-memory.dmp

          Filesize

          8KB

        • memory/1672-59-0x0000000074791000-0x0000000074793000-memory.dmp

          Filesize

          8KB

        • memory/1672-60-0x0000000001EF0000-0x0000000002F7E000-memory.dmp

          Filesize

          16.6MB

        • memory/1672-61-0x00000000003F0000-0x00000000003F2000-memory.dmp

          Filesize

          8KB

        • memory/1672-62-0x0000000000400000-0x0000000000415000-memory.dmp

          Filesize

          84KB