Analysis

  • max time kernel
    0s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    07/01/2024, 19:34

General

  • Target
    a752c2e175df54589c10bf638122b230.exe
  • Size 512KB
  • Sample240107-x97fdsdef8
  • SHA256 533b6f20b0e57800fcb8c4c24eb86e244ea713952df7f263e4a8da5d4826f2fc
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 5 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 4 IoCs
  • Windows security modification 2 TTPs 6 IoCs
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Modifies WinLogon 2 TTPs 2 IoCs
  • AutoIT Executable 8 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory 8 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 19 IoCs
  • Suspicious behavior: EnumeratesProcesses 17 IoCs
  • Suspicious use of FindShellTrayWindow 12 IoCs
  • Suspicious use of SendNotifyMessage 12 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a752c2e175df54589c10bf638122b230.exe
    "C:\Users\Admin\AppData\Local\Temp\a752c2e175df54589c10bf638122b230.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:3040
    • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
      "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Windows\mydoc.rtf"
      2⤵
        PID:2748
        • C:\Windows\splwow64.exe
          C:\Windows\splwow64.exe 12288
          3⤵
            PID:1564
        • C:\Windows\SysWOW64\tdkkycbkpgdas.exe
          tdkkycbkpgdas.exe
          2⤵
          • Executes dropped EXE
          PID:2636
        • C:\Windows\SysWOW64\zeptjxlp.exe
          zeptjxlp.exe
          2⤵
          • Executes dropped EXE
          • Enumerates connected drives
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SendNotifyMessage
          PID:2540
        • C:\Windows\SysWOW64\tsngbpuxgwriped.exe
          tsngbpuxgwriped.exe
          2⤵
          • Executes dropped EXE
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SendNotifyMessage
          PID:2016
        • C:\Windows\SysWOW64\ioiiupduwx.exe
          ioiiupduwx.exe
          2⤵
          • Modifies visibility of file extensions in Explorer
          • Modifies visiblity of hidden/system files in Explorer
          • Windows security bypass
          • Disables RegEdit via registry modification
          • Executes dropped EXE
          • Windows security modification
          • Modifies WinLogon
          • Modifies registry class
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SendNotifyMessage
          PID:2908
      • C:\Windows\SysWOW64\zeptjxlp.exe
        C:\Windows\system32\zeptjxlp.exe
        1⤵
          PID:2672

        Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

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              Downloads

              PROTTPLN.DOC.exe

              • Path C:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLN.DOC.exe
              • Size 512KB
              • SHA256 84bb5d4603dc38baa50e3d032515feea18960be860cf987cbc826f7eb0e1e008
              • MD5 SHA1 SHA512 SSDEEP

              PROTTPLV.DOC.exe

              • Path C:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLV.DOC.exe
              • Size 512KB
              • SHA256 e044730ca688d9ccb9129a165baf278be68eca716c3eea93e8b681ee089dd3a7
              • MD5 SHA1 SHA512 SSDEEP

              UnregisterHide.doc.exe

              • Path C:\Users\Admin\Downloads\UnregisterHide.doc.exe
              • Size 512KB
              • SHA256 60b514881135ae989a066d7a3941347b77dee2620f1eeb2025523a8aff41006d
              • MD5 SHA1 SHA512 SSDEEP

              tdkkycbkpgdas.exe

              • Path C:\Windows\SysWOW64\tdkkycbkpgdas.exe
              • Size 512KB
              • SHA256 1dee5f57b849b655ff4d9bc0d1dd869827a10f979869237c9bdd9b82bcb4cba6
              • MD5 SHA1 SHA512 SSDEEP

              zeptjxlp.exe

              • Path C:\Windows\SysWOW64\zeptjxlp.exe
              • Size 512KB
              • SHA256 a5dfd2559ffb5f09e41c4e3016ff69200d83a5e7f2b251aa8a651c0fa612188d
              • MD5 SHA1 SHA512 SSDEEP

              mydoc.rtf

              • Path C:\Windows\mydoc.rtf
              • Size 223B
              • SHA256 85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2
              • MD5 SHA1 SHA512

              ioiiupduwx.exe

              • Path \Windows\SysWOW64\ioiiupduwx.exe
              • Size 512KB
              • SHA256 8584ee589866eb671e5b8617955614a9539686dc3c23275cef3153bb1cce21cb
              • MD5 SHA1 SHA512 SSDEEP

              tsngbpuxgwriped.exe

              • Path \Windows\SysWOW64\tsngbpuxgwriped.exe
              • Size 512KB
              • SHA256 6952a3f50d4d3a2a93ded5c3be339552a6d86919d1623e0e159464fe192bd13f
              • MD5 SHA1 SHA512 SSDEEP

              memory/2748-45-0x000000002FC51000-0x000000002FC52000-memory.dmp

              memory/2748-46-0x000000005FFF0000-0x0000000060000000-memory.dmp

              memory/2748-47-0x00000000719ED000-0x00000000719F8000-memory.dmp

              memory/2748-81-0x00000000719ED000-0x00000000719F8000-memory.dmp

              memory/2748-102-0x000000005FFF0000-0x0000000060000000-memory.dmp

              memory/3040-0-0x0000000000400000-0x0000000000496000-memory.dmp