Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    30/09/2021, 21:28

General

  • Target
    SecuriteInfo.com.Variant.FakeAlert.2.2851.11805.exe
  • Size 1.9MB
  • Sample210930-1bbgvaaefq
  • SHA256 833ab773ed2c4e4cd2581d1e42bc5471f0621786007a8846aaf6cdfeccb198c2
  • MD5 SHA1 SHA512
Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 5 IoCs
  • Drops file in System32 directory 3 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.

  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 32 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 62 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.FakeAlert.2.2851.11805.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.FakeAlert.2.2851.11805.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of WriteProcessMemory
    PID:2060
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c powershell -Command "Add-MpPreference -ExclusionPath @($env:UserProfile,$env:AppData,$env:Temp,$env:SystemRoot,$env:HomeDrive,$env:SystemDrive) -Force" & powershell -Command "Add-MpPreference -ExclusionExtension @('exe','dll') -Force" & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2360
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -Command "Add-MpPreference -ExclusionPath @($env:UserProfile,$env:AppData,$env:Temp,$env:SystemRoot,$env:HomeDrive,$env:SystemDrive) -Force"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2720
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell -Command "Add-MpPreference -ExclusionExtension @('exe','dll') -Force"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:400
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c start C:\Windows\itstartup.exe
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2384
      • C:\Windows\itstartup.exe
        C:\Windows\itstartup.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:2688
        • C:\Windows\SYSTEM32\cmd.exe
          "cmd" /c powershell -Command Add-MpPreference -ExclusionPath '%UserProfile%' & powershell -Command Add-MpPreference -ExclusionPath '%AppData%' & powershell -Command Add-MpPreference -ExclusionPath '%Temp%' & powershell -Command Add-MpPreference -ExclusionPath '%SystemRoot%' & exit
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:3132
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            powershell -Command Add-MpPreference -ExclusionPath 'C:\Users\Admin'
            5⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:3464
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            powershell -Command Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming'
            5⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1640
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            powershell -Command Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp'
            5⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:3724
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            powershell -Command Add-MpPreference -ExclusionPath 'C:\Windows'
            5⤵
            • Suspicious behavior: EnumeratesProcesses
            PID:3572
        • C:\Windows\System32\cmd.exe
          "C:\Windows\System32\cmd.exe" /c C:\Users\Admin\AppData\Local\Temp\svchost32.exe "C:\Windows\itstartup.exe"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1016
          • C:\Users\Admin\AppData\Local\Temp\svchost32.exe
            C:\Users\Admin\AppData\Local\Temp\svchost32.exe "C:\Windows\itstartup.exe"
            5⤵
            • Executes dropped EXE
            • Drops file in System32 directory
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of WriteProcessMemory
            PID:3804
            • C:\Windows\System32\cmd.exe
              "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "itstartup" /tr '"C:\Windows\system32\itstartup.exe"' & exit
              6⤵
              • Suspicious use of WriteProcessMemory
              PID:748
              • C:\Windows\system32\schtasks.exe
                schtasks /create /f /sc onlogon /rl highest /tn "itstartup" /tr '"C:\Windows\system32\itstartup.exe"'
                7⤵
                • Creates scheduled task(s)
                PID:376
            • C:\Windows\system32\itstartup.exe
              "C:\Windows\system32\itstartup.exe"
              6⤵
              • Executes dropped EXE
              • Suspicious use of WriteProcessMemory
              PID:2584
              • C:\Windows\system32\cmd.exe
                "cmd" /c powershell -Command Add-MpPreference -ExclusionPath '%UserProfile%' & powershell -Command Add-MpPreference -ExclusionPath '%AppData%' & powershell -Command Add-MpPreference -ExclusionPath '%Temp%' & powershell -Command Add-MpPreference -ExclusionPath '%SystemRoot%' & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:1712
                • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                  powershell -Command Add-MpPreference -ExclusionPath 'C:\Users\Admin'
                  8⤵
                  • Suspicious behavior: EnumeratesProcesses
                  PID:588
                • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                  powershell -Command Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming'
                  8⤵
                  • Suspicious behavior: EnumeratesProcesses
                  PID:1312
                • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                  powershell -Command Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp'
                  8⤵
                  • Suspicious behavior: EnumeratesProcesses
                  PID:2424
                • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                  powershell -Command Add-MpPreference -ExclusionPath 'C:\Windows'
                  8⤵
                  • Suspicious behavior: EnumeratesProcesses
                  PID:516
              • C:\Windows\System32\cmd.exe
                "C:\Windows\System32\cmd.exe" /c C:\Users\Admin\AppData\Local\Temp\svchost32.exe "C:\Windows\system32\itstartup.exe"
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:1532
                • C:\Users\Admin\AppData\Local\Temp\svchost32.exe
                  C:\Users\Admin\AppData\Local\Temp\svchost32.exe "C:\Windows\system32\itstartup.exe"
                  8⤵
                  • Executes dropped EXE
                  • Drops file in System32 directory
                  • Suspicious behavior: EnumeratesProcesses
                  • Suspicious use of WriteProcessMemory
                  PID:1784
                  • C:\Windows\System32\cmd.exe
                    "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "itstartup" /tr '"C:\Windows\system32\itstartup.exe"' & exit
                    9⤵
                    • Suspicious use of WriteProcessMemory
                    PID:3536
                    • C:\Windows\system32\schtasks.exe
                      schtasks /create /f /sc onlogon /rl highest /tn "itstartup" /tr '"C:\Windows\system32\itstartup.exe"'
                      10⤵
                      • Creates scheduled task(s)
                      PID:2676
                  • C:\Windows\system32\Microsoft\Telemetry\sihost32.exe
                    "C:\Windows\system32\Microsoft\Telemetry\sihost32.exe"
                    9⤵
                    • Executes dropped EXE
                    PID:996
                  • C:\Windows\System32\cmd.exe
                    "C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 3 & Del "C:\Users\Admin\AppData\Local\Temp\svchost32.exe"
                    9⤵
                    • Suspicious use of WriteProcessMemory
                    PID:3168
                    • C:\Windows\system32\choice.exe
                      choice /C Y /N /D Y /T 3
                      10⤵
                        PID:3524
              • C:\Windows\System32\cmd.exe
                "C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 3 & Del "C:\Users\Admin\AppData\Local\Temp\svchost32.exe"
                6⤵
                • Suspicious use of WriteProcessMemory
                PID:3824
                • C:\Windows\system32\choice.exe
                  choice /C Y /N /D Y /T 3
                  7⤵
                    PID:3036

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            memory/400-553-0x00000000045A2000-0x00000000045A3000-memory.dmp

            memory/400-605-0x000000007EF80000-0x000000007EF81000-memory.dmp

            memory/400-607-0x00000000045A3000-0x00000000045A4000-memory.dmp

            memory/400-552-0x00000000045A0000-0x00000000045A1000-memory.dmp

            memory/516-980-0x0000029877938000-0x0000029877939000-memory.dmp

            memory/516-974-0x0000029877936000-0x0000029877938000-memory.dmp

            memory/516-973-0x0000029877933000-0x0000029877935000-memory.dmp

            memory/516-971-0x0000029877930000-0x0000029877932000-memory.dmp

            memory/588-890-0x00000207B75D8000-0x00000207B75D9000-memory.dmp

            memory/588-851-0x00000207B75D6000-0x00000207B75D8000-memory.dmp

            memory/588-849-0x00000207B75D0000-0x00000207B75D2000-memory.dmp

            memory/588-850-0x00000207B75D3000-0x00000207B75D5000-memory.dmp

            memory/996-999-0x0000000003550000-0x0000000003552000-memory.dmp

            memory/1312-891-0x0000025758C80000-0x0000025758C82000-memory.dmp

            memory/1312-932-0x0000025758C88000-0x0000025758C89000-memory.dmp

            memory/1312-892-0x0000025758C83000-0x0000025758C85000-memory.dmp

            memory/1312-893-0x0000025758C86000-0x0000025758C88000-memory.dmp

            memory/1640-185-0x000002BCD7770000-0x000002BCD7772000-memory.dmp

            memory/1640-187-0x000002BCD7773000-0x000002BCD7775000-memory.dmp

            memory/1640-228-0x000002BCD7776000-0x000002BCD7778000-memory.dmp

            memory/1640-231-0x000002BCD7778000-0x000002BCD7779000-memory.dmp

            memory/1784-998-0x000000001CBD0000-0x000000001CBD2000-memory.dmp

            memory/2424-934-0x000002127BB43000-0x000002127BB45000-memory.dmp

            memory/2424-935-0x000002127BB46000-0x000002127BB48000-memory.dmp

            memory/2424-969-0x000002127BB48000-0x000002127BB49000-memory.dmp

            memory/2424-933-0x000002127BB40000-0x000002127BB42000-memory.dmp

            memory/2584-812-0x0000000002C80000-0x0000000002C82000-memory.dmp

            memory/2688-121-0x0000000000D00000-0x0000000000D01000-memory.dmp

            memory/2688-160-0x000000001C9D0000-0x000000001C9D2000-memory.dmp

            memory/2720-158-0x0000000007470000-0x0000000007471000-memory.dmp

            memory/2720-260-0x0000000008FD0000-0x0000000008FD1000-memory.dmp

            memory/2720-287-0x0000000004783000-0x0000000004784000-memory.dmp

            memory/2720-176-0x0000000007EB0000-0x0000000007EB1000-memory.dmp

            memory/2720-284-0x000000007EF10000-0x000000007EF11000-memory.dmp

            memory/2720-173-0x0000000007E60000-0x0000000007E61000-memory.dmp

            memory/2720-519-0x0000000008CA0000-0x0000000008CA1000-memory.dmp

            memory/2720-138-0x0000000004620000-0x0000000004621000-memory.dmp

            memory/2720-172-0x0000000007610000-0x0000000007611000-memory.dmp

            memory/2720-169-0x0000000007730000-0x0000000007731000-memory.dmp

            memory/2720-139-0x0000000006DD0000-0x0000000006DD1000-memory.dmp

            memory/2720-165-0x0000000004782000-0x0000000004783000-memory.dmp

            memory/2720-144-0x0000000006C70000-0x0000000006C71000-memory.dmp

            memory/2720-525-0x0000000008C80000-0x0000000008C81000-memory.dmp

            memory/2720-164-0x0000000004780000-0x0000000004781000-memory.dmp

            memory/2720-162-0x00000000074E0000-0x00000000074E1000-memory.dmp

            memory/2720-279-0x0000000009120000-0x0000000009121000-memory.dmp

            memory/2720-251-0x0000000008B50000-0x0000000008B51000-memory.dmp

            memory/2720-239-0x0000000008B70000-0x0000000008BA3000-memory.dmp

            memory/3464-163-0x000001E3509C3000-0x000001E3509C5000-memory.dmp

            memory/3464-183-0x000001E3509C8000-0x000001E3509C9000-memory.dmp

            memory/3464-131-0x000001E350960000-0x000001E350961000-memory.dmp

            memory/3464-137-0x000001E352B20000-0x000001E352B21000-memory.dmp

            memory/3464-161-0x000001E3509C0000-0x000001E3509C2000-memory.dmp

            memory/3464-166-0x000001E3509C6000-0x000001E3509C8000-memory.dmp

            memory/3572-392-0x000002823D860000-0x000002823D862000-memory.dmp

            memory/3572-395-0x000002823D866000-0x000002823D868000-memory.dmp

            memory/3572-394-0x000002823D863000-0x000002823D865000-memory.dmp

            memory/3572-531-0x000002823D868000-0x000002823D869000-memory.dmp

            memory/3724-286-0x0000018ED4006000-0x0000018ED4008000-memory.dmp

            memory/3724-233-0x0000018ED4003000-0x0000018ED4005000-memory.dmp

            memory/3724-285-0x0000018ED4008000-0x0000018ED4009000-memory.dmp

            memory/3724-232-0x0000018ED4000000-0x0000018ED4002000-memory.dmp

            memory/3804-800-0x0000000001CA0000-0x0000000001CA1000-memory.dmp

            memory/3804-803-0x000000001CBF0000-0x000000001CBF2000-memory.dmp

            memory/3804-798-0x0000000000D90000-0x0000000000D91000-memory.dmp