Analysis

  • max time kernel
    148s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    02-10-2022 16:37

General

  • Target

    f32d9a70d615e050a427922b7a22677217528595701eb0b2a147e4f3f495aa88.exe

  • Size

    100KB

  • MD5

    4bb6708df44a0bb41056ca6f687f8147

  • SHA1

    ba4929560fb3a4604edea25f3bb18a12ac1ca433

  • SHA256

    f32d9a70d615e050a427922b7a22677217528595701eb0b2a147e4f3f495aa88

  • SHA512

    566e884eb775b4f841877050e2d83865c4bf4a82a4a252d8a4721fe74c6e2d958be608674f38e97bf93afd78389bf32fabacad8c665bf123a4b94b82161af49e

  • SSDEEP

    1536:wBP2mP+KKEZijYFR/NUT0PqI6gN0k15lVXBsst98FbCZ25fJ:02lKLijYFRjPXVN0k15l1BsK8FK2X

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\system32\taskhost.exe
    "taskhost.exe"
    1⤵
      PID:1256
    • C:\Windows\Explorer.EXE
      C:\Windows\Explorer.EXE
      1⤵
        PID:1412
        • C:\Users\Admin\AppData\Local\Temp\f32d9a70d615e050a427922b7a22677217528595701eb0b2a147e4f3f495aa88.exe
          "C:\Users\Admin\AppData\Local\Temp\f32d9a70d615e050a427922b7a22677217528595701eb0b2a147e4f3f495aa88.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:1584
      • C:\Windows\system32\Dwm.exe
        "C:\Windows\system32\Dwm.exe"
        1⤵
          PID:1340

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1584-54-0x0000000074BB1000-0x0000000074BB3000-memory.dmp

          Filesize

          8KB

        • memory/1584-55-0x0000000001DD0000-0x0000000002E5E000-memory.dmp

          Filesize

          16.6MB

        • memory/1584-56-0x0000000000400000-0x0000000000415000-memory.dmp

          Filesize

          84KB

        • memory/1584-57-0x0000000001DD0000-0x0000000002E5E000-memory.dmp

          Filesize

          16.6MB

        • memory/1584-58-0x00000000002D0000-0x00000000002D2000-memory.dmp

          Filesize

          8KB

        • memory/1584-59-0x00000000742B1000-0x00000000742B3000-memory.dmp

          Filesize

          8KB

        • memory/1584-60-0x0000000004010000-0x0000000004012000-memory.dmp

          Filesize

          8KB

        • memory/1584-62-0x00000000002D0000-0x00000000002D2000-memory.dmp

          Filesize

          8KB

        • memory/1584-61-0x0000000001DD0000-0x0000000002E5E000-memory.dmp

          Filesize

          16.6MB

        • memory/1584-63-0x0000000004010000-0x0000000004012000-memory.dmp

          Filesize

          8KB