Analysis

  • max time kernel
    151s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 21:13

General

  • Target

    da3531f3a4d2f4d8cad6aaa1f32d18ebbfecbe39119f15256f3e39558f5f6775.exe

  • Size

    96KB

  • MD5

    ca3ed5c8f7570cbc39647954bc12d832

  • SHA1

    92d4d20a44d1d7f2d879b01eef6fa8759fd36d7b

  • SHA256

    da3531f3a4d2f4d8cad6aaa1f32d18ebbfecbe39119f15256f3e39558f5f6775

  • SHA512

    c215eb06ce9b93c0d2810198417f7326d65ccb6ea28b2731104ad0a08e4e382bb6fceb7e4cc32de00bebbf178d949ceb2e882c56b3a7d0bdf797ac22e1c64e5a

  • SSDEEP

    3072:chsciaDONvS2Fm2Iv+KzWZkx3kG6eqrWxqU2bfuJcQ4:chEaDV2FjIv+uWZsGLrnZQ

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 21 IoCs
  • Suspicious use of WriteProcessMemory 42 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\da3531f3a4d2f4d8cad6aaa1f32d18ebbfecbe39119f15256f3e39558f5f6775.exe
    "C:\Users\Admin\AppData\Local\Temp\da3531f3a4d2f4d8cad6aaa1f32d18ebbfecbe39119f15256f3e39558f5f6775.exe"
    1⤵
    • 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:1792
  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1236
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1192
      • C:\Windows\system32\taskhost.exe
        "taskhost.exe"
        1⤵
          PID:1124

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1792-54-0x0000000076321000-0x0000000076323000-memory.dmp

          Filesize

          8KB

        • memory/1792-55-0x0000000001E10000-0x0000000002E9E000-memory.dmp

          Filesize

          16.6MB

        • memory/1792-56-0x0000000000400000-0x0000000000412000-memory.dmp

          Filesize

          72KB

        • memory/1792-57-0x0000000001E10000-0x0000000002E9E000-memory.dmp

          Filesize

          16.6MB

        • memory/1792-58-0x0000000000470000-0x0000000000472000-memory.dmp

          Filesize

          8KB

        • memory/1792-59-0x0000000074831000-0x0000000074833000-memory.dmp

          Filesize

          8KB

        • memory/1792-60-0x0000000003CE0000-0x0000000003CE2000-memory.dmp

          Filesize

          8KB

        • memory/1792-61-0x0000000001E10000-0x0000000002E9E000-memory.dmp

          Filesize

          16.6MB

        • memory/1792-62-0x0000000000470000-0x0000000000472000-memory.dmp

          Filesize

          8KB

        • memory/1792-63-0x0000000003CE0000-0x0000000003CE2000-memory.dmp

          Filesize

          8KB