Resubmissions

16/03/2024, 15:20

240316-sq9desff3410

16/03/2024, 15:16

240316-sns9esdf2110

Analysis

  • max time kernel
    4s
  • max time network
    10s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    16/03/2024, 15:16

Errors

Reason
Machine shutdown

General

  • Target
    Trojan/666.exe
  • Size 6.8MB
  • Sample240316-sns9esdf21
  • SHA256 db6bbaa7de79fa26489c511fb59e996db796a491f047539fea8ef42107ff3eb6
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Disables Task Manager via registry modification
  • Modifies WinLogon 2 TTPs 1 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • Kills process with taskkill 1 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Trojan\666.exe
    "C:\Users\Admin\AppData\Local\Temp\Trojan\666.exe"
    1⤵
    • Modifies WinLogon
    • Sets desktop wallpaper using registry
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2284
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\z666.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2524
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im explorer.exe
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:2584
      • C:\Windows\SysWOW64\Wbem\WMIC.exe
        wmic useraccount where name='Admin' set FullName='No System Anymore'
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2656
      • C:\Windows\SysWOW64\Wbem\WMIC.exe
        wmic useraccount where name='Admin' rename 'No System Anymore'
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2516
      • C:\Windows\SysWOW64\shutdown.exe
        shutdown /f /r /t 0
        3⤵
          PID:1584
    • C:\Windows\system32\LogonUI.exe
      "LogonUI.exe" /flags:0x0
      1⤵
        PID:2264
      • C:\Windows\system32\LogonUI.exe
        "LogonUI.exe" /flags:0x1
        1⤵
          PID:284

        Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

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              Downloads

              NoSystemAnymore.exe

              • Path C:\Users\Admin\AppData\Local\Temp\NoSystemAnymore.exe
              • Size 273KB
              • SHA256 b1f25de77226ad8cf0e06226653e1c5aa7ac27a1ba8ba7bff8845685c2e53709
              • MD5 SHA1 SHA512 SSDEEP

              bsod.exe

              • Path C:\Users\Admin\AppData\Local\Temp\bsod.exe
              • Size 274KB
              • SHA256 a254d664351a6db50d98bebbd530c46e64f9b9455bf4f378254045b2cde971f8
              • MD5 SHA1 SHA512 SSDEEP

              z666.bat

              • Path C:\Users\Admin\AppData\Local\Temp\z666.bat
              • Size 691B
              • SHA256 40cc0b6734258fc61e9940e359b7e0b84651e44a12943bb4381523a5cea325ef
              • MD5 SHA1 SHA512

              NO WAY NO WAY NO WAY NO WAY NO WAY NO WAY NO WAY N1 WAY.txt

              • Path C:\Users\Admin\Desktop\NO WAY NO WAY NO WAY NO WAY NO WAY NO WAY NO WAY N1 WAY.txt
              • Size 912B
              • SHA256 524dcba7e6a293bc6a19c1522672598a71ff4def394ac696ec30ea99154d511b
              • MD5 SHA1 SHA512

              memory/284-825-0x0000000002AB0000-0x0000000002AB1000-memory.dmp

              memory/2264-823-0x0000000002D90000-0x0000000002D91000-memory.dmp

              memory/2284-1-0x0000000000AA0000-0x000000000116A000-memory.dmp

              memory/2284-0-0x0000000073F50000-0x000000007463E000-memory.dmp

              memory/2284-2-0x0000000005430000-0x0000000005470000-memory.dmp

              memory/2284-824-0x0000000073F50000-0x000000007463E000-memory.dmp