Analysis

  • max time kernel
    150s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    01/10/2022, 23:56

General

  • Target

    a471627cdd65a615ad5180ee861b0d5c231d594d385505d41709b702916165ab.exe

  • Size

    187KB

  • MD5

    652fe67abc4fc0f30fb5e6ea103aeebe

  • SHA1

    9f61655f762ab001915cbbc8a84a324f1eead7dc

  • SHA256

    a471627cdd65a615ad5180ee861b0d5c231d594d385505d41709b702916165ab

  • SHA512

    3cb8384684ef864cc2ebe5458c994e248e25cb02326cda14980f3ba72f9ecba353a00ac6c1d48d3fc6c8ab184a78017c2ad7b1ca8e702cbb84566d1c7557b186

  • SSDEEP

    3072:St1Z9xolp4D4dMz4n4N4t4R4aEIIIIzDMY5pdRvuJOtkedrfNkq35vU:e1Z9xolxMdEIIIIzL5dgOphHU

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
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 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
  • Executes dropped EXE 1 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
  • Adds Run key to start application 2 TTPs 2 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 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 20 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1380
      • C:\Users\Admin\AppData\Local\Temp\a471627cdd65a615ad5180ee861b0d5c231d594d385505d41709b702916165ab.exe
        "C:\Users\Admin\AppData\Local\Temp\a471627cdd65a615ad5180ee861b0d5c231d594d385505d41709b702916165ab.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 SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        • System policy modification
        PID:968
        • C:\Users\Admin\peiori.exe
          "C:\Users\Admin\peiori.exe"
          3⤵
          • Modifies visiblity of hidden/system files in Explorer
          • Executes dropped EXE
          • Adds Run key to start application
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:996
    • C:\Windows\system32\Dwm.exe
      "C:\Windows\system32\Dwm.exe"
      1⤵
        PID:1312
      • C:\Windows\system32\taskhost.exe
        "taskhost.exe"
        1⤵
          PID:1224

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\peiori.exe

          Filesize

          187KB

          MD5

          b6d2e6a7debfef27062e4c7b54ea771e

          SHA1

          cc0c28940e8dae008a5f8051153b1776386acbd7

          SHA256

          7c2f41322c0ef253477e31298f37479e7ed0d5d81a83f25b162a72ddc680a440

          SHA512

          537195369a9755d4eee7b9442e6e09dd7a7231f23736285ed40dcea094714b44c9ea9150c4e2917055e8f0705d8633412233c38f9537054c3e9547ba12077569

        • C:\Users\Admin\peiori.exe

          Filesize

          187KB

          MD5

          b6d2e6a7debfef27062e4c7b54ea771e

          SHA1

          cc0c28940e8dae008a5f8051153b1776386acbd7

          SHA256

          7c2f41322c0ef253477e31298f37479e7ed0d5d81a83f25b162a72ddc680a440

          SHA512

          537195369a9755d4eee7b9442e6e09dd7a7231f23736285ed40dcea094714b44c9ea9150c4e2917055e8f0705d8633412233c38f9537054c3e9547ba12077569

        • \Users\Admin\peiori.exe

          Filesize

          187KB

          MD5

          b6d2e6a7debfef27062e4c7b54ea771e

          SHA1

          cc0c28940e8dae008a5f8051153b1776386acbd7

          SHA256

          7c2f41322c0ef253477e31298f37479e7ed0d5d81a83f25b162a72ddc680a440

          SHA512

          537195369a9755d4eee7b9442e6e09dd7a7231f23736285ed40dcea094714b44c9ea9150c4e2917055e8f0705d8633412233c38f9537054c3e9547ba12077569

        • \Users\Admin\peiori.exe

          Filesize

          187KB

          MD5

          b6d2e6a7debfef27062e4c7b54ea771e

          SHA1

          cc0c28940e8dae008a5f8051153b1776386acbd7

          SHA256

          7c2f41322c0ef253477e31298f37479e7ed0d5d81a83f25b162a72ddc680a440

          SHA512

          537195369a9755d4eee7b9442e6e09dd7a7231f23736285ed40dcea094714b44c9ea9150c4e2917055e8f0705d8633412233c38f9537054c3e9547ba12077569

        • memory/968-58-0x0000000000380000-0x0000000000382000-memory.dmp

          Filesize

          8KB

        • memory/968-54-0x0000000076831000-0x0000000076833000-memory.dmp

          Filesize

          8KB

        • memory/968-57-0x00000000026B0000-0x000000000373E000-memory.dmp

          Filesize

          16.6MB

        • memory/968-56-0x0000000000400000-0x0000000000432000-memory.dmp

          Filesize

          200KB

        • memory/968-55-0x00000000026B0000-0x000000000373E000-memory.dmp

          Filesize

          16.6MB

        • memory/968-68-0x0000000005380000-0x00000000053B2000-memory.dmp

          Filesize

          200KB

        • memory/968-71-0x0000000005110000-0x0000000005D5A000-memory.dmp

          Filesize

          12.3MB

        • memory/968-73-0x00000000026B0000-0x000000000373E000-memory.dmp

          Filesize

          16.6MB

        • memory/968-74-0x0000000000380000-0x0000000000382000-memory.dmp

          Filesize

          8KB

        • memory/996-69-0x0000000000400000-0x0000000000432000-memory.dmp

          Filesize

          200KB

        • memory/996-72-0x00000000003F0000-0x00000000003F2000-memory.dmp

          Filesize

          8KB

        • memory/996-75-0x00000000003F0000-0x00000000003F2000-memory.dmp

          Filesize

          8KB