Analysis

  • max time kernel
    106s
  • max time network
    55s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/06/2024, 14:47

Errors

Reason
Machine shutdown

General

  • Target
    PCToaster.exe
  • Size 411KB
  • Sample240620-r6de9axcpr
  • SHA256 85a58aa96dccd94316a34608ba996656a22c8158d5156b6e454d9d69e6ff38c3
  • MD5 SHA1 SHA512 SSDEEP
Score
8/10

Malware Config

Signatures

  • Possible privilege escalation attempt 3 IoCs
  • Modifies file permissions 1 TTPs 3 IoCs
  • Enumerates connected drives 3 TTPs 24 IoCs

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

  • Checks SCSI registry key(s) 3 TTPs 7 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Kills process with taskkill 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 13 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of FindShellTrayWindow 40 IoCs
  • Suspicious use of SendNotifyMessage 39 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PCToaster.exe
    "C:\Users\Admin\AppData\Local\Temp\PCToaster.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4504
    • C:\Program Files\Java\jre-1.8\bin\javaw.exe
      "C:\Program Files\Java\jre-1.8\bin\javaw.exe" -jar "C:\Users\Admin\AppData\Local\Temp\PCToaster.exe"
      2⤵
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3976
      • C:\Windows\system32\icacls.exe
        C:\Windows\system32\icacls.exe C:\ProgramData\Oracle\Java\.oracle_jre_usage /grant "everyone":(OI)(CI)M
        3⤵
        • Possible privilege escalation attempt
        • Modifies file permissions
        PID:2228
      • C:\Windows\SYSTEM32\attrib.exe
        attrib +h C:\Users\Admin\AppData\Local\Temp\scr.txt
        3⤵
        • Views/modifies file attributes
        PID:440
      • C:\Windows\SYSTEM32\diskpart.exe
        diskpart /s C:\Users\Admin\AppData\Local\Temp\scr.txt
        3⤵
          PID:688
        • C:\Windows\SYSTEM32\takeown.exe
          takeown /f V:\Boot /r
          3⤵
          • Possible privilege escalation attempt
          • Modifies file permissions
          • Enumerates connected drives
          • Suspicious use of AdjustPrivilegeToken
          PID:3780
        • C:\Windows\SYSTEM32\takeown.exe
          takeown /f V:\Recovery /r
          3⤵
          • Possible privilege escalation attempt
          • Modifies file permissions
          • Enumerates connected drives
          PID:4980
        • C:\Windows\SYSTEM32\taskkill.exe
          taskkill /im lsass.exe /f
          3⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:3708
        • C:\Windows\SYSTEM32\mountvol.exe
          mountvol A: /d
          3⤵
          • Enumerates connected drives
          PID:776
        • C:\Windows\SYSTEM32\mountvol.exe
          mountvol B: /d
          3⤵
          • Enumerates connected drives
          PID:3524
        • C:\Windows\SYSTEM32\mountvol.exe
          mountvol D: /d
          3⤵
            PID:4620
          • C:\Windows\SYSTEM32\mountvol.exe
            mountvol E: /d
            3⤵
            • Enumerates connected drives
            PID:5000
          • C:\Windows\SYSTEM32\mountvol.exe
            mountvol F: /d
            3⤵
              PID:4396
            • C:\Windows\SYSTEM32\mountvol.exe
              mountvol G: /d
              3⤵
              • Enumerates connected drives
              PID:3532
            • C:\Windows\SYSTEM32\mountvol.exe
              mountvol H: /d
              3⤵
              • Enumerates connected drives
              PID:1408
            • C:\Windows\SYSTEM32\mountvol.exe
              mountvol I: /d
              3⤵
              • Enumerates connected drives
              PID:2344
            • C:\Windows\SYSTEM32\mountvol.exe
              mountvol J: /d
              3⤵
              • Enumerates connected drives
              PID:3088
            • C:\Windows\SYSTEM32\mountvol.exe
              mountvol K: /d
              3⤵
              • Enumerates connected drives
              PID:2904
            • C:\Windows\SYSTEM32\mountvol.exe
              mountvol L: /d
              3⤵
              • Enumerates connected drives
              PID:3604
            • C:\Windows\SYSTEM32\mountvol.exe
              mountvol M: /d
              3⤵
              • Enumerates connected drives
              PID:2028
            • C:\Windows\SYSTEM32\mountvol.exe
              mountvol N: /d
              3⤵
              • Enumerates connected drives
              PID:5100
            • C:\Windows\SYSTEM32\mountvol.exe
              mountvol O: /d
              3⤵
              • Enumerates connected drives
              PID:5116
            • C:\Windows\SYSTEM32\mountvol.exe
              mountvol P: /d
              3⤵
              • Enumerates connected drives
              PID:5012
            • C:\Windows\SYSTEM32\mountvol.exe
              mountvol Q: /d
              3⤵
              • Enumerates connected drives
              PID:3732
            • C:\Windows\SYSTEM32\mountvol.exe
              mountvol R: /d
              3⤵
              • Enumerates connected drives
              PID:4520
            • C:\Windows\SYSTEM32\mountvol.exe
              mountvol S: /d
              3⤵
              • Enumerates connected drives
              PID:4956
            • C:\Windows\SYSTEM32\mountvol.exe
              mountvol T: /d
              3⤵
              • Enumerates connected drives
              PID:728
            • C:\Windows\SYSTEM32\mountvol.exe
              mountvol U: /d
              3⤵
              • Enumerates connected drives
              PID:4472
            • C:\Windows\SYSTEM32\mountvol.exe
              mountvol V: /d
              3⤵
                PID:3220
              • C:\Windows\SYSTEM32\mountvol.exe
                mountvol W: /d
                3⤵
                • Enumerates connected drives
                PID:232
              • C:\Windows\SYSTEM32\mountvol.exe
                mountvol X: /d
                3⤵
                • Enumerates connected drives
                PID:2308
              • C:\Windows\SYSTEM32\mountvol.exe
                mountvol Y: /d
                3⤵
                • Enumerates connected drives
                PID:3848
              • C:\Windows\SYSTEM32\mountvol.exe
                mountvol Z: /d
                3⤵
                • Enumerates connected drives
                PID:860
              • C:\Windows\SYSTEM32\mountvol.exe
                mountvol C: /d
                3⤵
                  PID:1616
            • C:\Windows\System32\vdsldr.exe
              C:\Windows\System32\vdsldr.exe -Embedding
              1⤵
                PID:2112
              • C:\Windows\System32\vds.exe
                C:\Windows\System32\vds.exe
                1⤵
                • Checks SCSI registry key(s)
                PID:3140
              • C:\Windows\system32\taskmgr.exe
                "C:\Windows\system32\taskmgr.exe" /4
                1⤵
                • Checks SCSI registry key(s)
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of FindShellTrayWindow
                • Suspicious use of SendNotifyMessage
                PID:3212
              • C:\Windows\System32\rundll32.exe
                C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
                1⤵
                  PID:1920
                • C:\Windows\system32\svchost.exe
                  C:\Windows\system32\svchost.exe -k LocalService -p -s fdPHost
                  1⤵
                    PID:3128

                  Network

                        MITRE ATT&CK Enterprise v15

                        Replay Monitor

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                        Downloads

                        3903daac9bc4a3b7.timestamp

                        • Path C:\ProgramData\Oracle\Java\.oracle_jre_usage\3903daac9bc4a3b7.timestamp
                        • Size 46B
                        • SHA256 a9aaac48e94fd8b5e296ccd99e2a4d73639f7c2b3b2c35bc02e8fc6cb5040856
                        • MD5 SHA1 SHA512

                        scr.txt

                        • Path C:\Users\Admin\AppData\Local\Temp\scr.txt
                        • Size 45B
                        • SHA256 7e9cde40095f2a877375cb30fecd4f64cf328e3ab11baed5242f73cbb94bd394
                        • MD5 SHA1 SHA512

                        memory/3212-54-0x0000017B3DB60000-0x0000017B3DB61000-memory.dmp

                        memory/3212-48-0x0000017B3DB60000-0x0000017B3DB61000-memory.dmp

                        memory/3212-49-0x0000017B3DB60000-0x0000017B3DB61000-memory.dmp

                        memory/3212-50-0x0000017B3DB60000-0x0000017B3DB61000-memory.dmp

                        memory/3212-51-0x0000017B3DB60000-0x0000017B3DB61000-memory.dmp

                        memory/3212-52-0x0000017B3DB60000-0x0000017B3DB61000-memory.dmp

                        memory/3212-53-0x0000017B3DB60000-0x0000017B3DB61000-memory.dmp

                        memory/3212-42-0x0000017B3DB60000-0x0000017B3DB61000-memory.dmp

                        memory/3212-43-0x0000017B3DB60000-0x0000017B3DB61000-memory.dmp

                        memory/3212-44-0x0000017B3DB60000-0x0000017B3DB61000-memory.dmp

                        memory/3976-33-0x000002A091A80000-0x000002A091A81000-memory.dmp

                        memory/3976-79-0x000002A091A80000-0x000002A091A81000-memory.dmp

                        memory/3976-115-0x000002A091A80000-0x000002A091A81000-memory.dmp

                        memory/3976-30-0x000002A091A80000-0x000002A091A81000-memory.dmp

                        memory/3976-27-0x000002A091A80000-0x000002A091A81000-memory.dmp

                        memory/3976-24-0x000002A091A80000-0x000002A091A81000-memory.dmp

                        memory/3976-3-0x000002A093350000-0x000002A0935C0000-memory.dmp

                        memory/3976-55-0x000002A093350000-0x000002A0935C0000-memory.dmp

                        memory/3976-58-0x000002A091A80000-0x000002A091A81000-memory.dmp

                        memory/3976-35-0x000002A091A80000-0x000002A091A81000-memory.dmp

                        memory/3976-96-0x000002A091A80000-0x000002A091A81000-memory.dmp

                        memory/3976-99-0x000002A091A80000-0x000002A091A81000-memory.dmp

                        memory/3976-103-0x000002A091A80000-0x000002A091A81000-memory.dmp

                        memory/3976-104-0x000002A091A80000-0x000002A091A81000-memory.dmp

                        memory/3976-106-0x000002A091A80000-0x000002A091A81000-memory.dmp

                        memory/3976-109-0x000002A091A80000-0x000002A091A81000-memory.dmp

                        memory/3976-114-0x000002A091A80000-0x000002A091A81000-memory.dmp

                        memory/4504-0-0x0000000000400000-0x000000000046E000-memory.dmp