Analysis

  • max time kernel
    150s
  • max time network
    48s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    30-10-2022 01:55

General

  • Target

    25ef9a6b7a2d46e51d19e1bea07c2c9c9f887c4d0e75244947d6d067446f9b7b.exe

  • Size

    100KB

  • MD5

    92f7018a7e3e71b7c871d6a1834be961

  • SHA1

    1588c5b2961e1f81da75011f3846681c078a014b

  • SHA256

    25ef9a6b7a2d46e51d19e1bea07c2c9c9f887c4d0e75244947d6d067446f9b7b

  • SHA512

    78451e59c9cf08e34f0f4dd19bf194a460a879bcf3b8110c6c751f8fed64d7c966950b9af00e884ccdad2f4b5efb6912176791ca8a1e6557885db4e9de86e9be

  • SSDEEP

    3072:92RiEWXRFIgPRzHandHbfjxjttd0sXLqt:Yg3fIgPShJdbk

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 19 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:1368
      • C:\Users\Admin\AppData\Local\Temp\25ef9a6b7a2d46e51d19e1bea07c2c9c9f887c4d0e75244947d6d067446f9b7b.exe
        "C:\Users\Admin\AppData\Local\Temp\25ef9a6b7a2d46e51d19e1bea07c2c9c9f887c4d0e75244947d6d067446f9b7b.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:2032
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1332
      • C:\Windows\system32\taskhost.exe
        "taskhost.exe"
        1⤵
          PID:1244

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/2032-54-0x0000000075A71000-0x0000000075A73000-memory.dmp

          Filesize

          8KB

        • memory/2032-55-0x0000000001E30000-0x0000000002EBE000-memory.dmp

          Filesize

          16.6MB

        • memory/2032-56-0x0000000000400000-0x0000000000416000-memory.dmp

          Filesize

          88KB

        • memory/2032-57-0x0000000001E30000-0x0000000002EBE000-memory.dmp

          Filesize

          16.6MB

        • memory/2032-58-0x0000000000290000-0x0000000000292000-memory.dmp

          Filesize

          8KB

        • memory/2032-59-0x0000000074DC1000-0x0000000074DC3000-memory.dmp

          Filesize

          8KB

        • memory/2032-60-0x0000000002FC0000-0x0000000002FC2000-memory.dmp

          Filesize

          8KB

        • memory/2032-61-0x0000000001E30000-0x0000000002EBE000-memory.dmp

          Filesize

          16.6MB

        • memory/2032-62-0x0000000000290000-0x0000000000292000-memory.dmp

          Filesize

          8KB

        • memory/2032-63-0x0000000002FC0000-0x0000000002FC2000-memory.dmp

          Filesize

          8KB