Analysis

  • max time kernel
    152s
  • max time network
    143s
  • platform
    windows10_x64
  • resource
    win10-en-20211104
  • submitted
    08/12/2021, 11:41

General

  • Target
    Payment Confirmation.pdf.exe
  • Size 2.2MB
  • Sample211208-ntfhasaafn
  • SHA256 ae7f27cb47faadb14fd76d3669d0aa2bcbfccf8afb06da7431f55abd381a1197
  • MD5 SHA1 SHA512
Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 10 IoCs
  • Drops startup file 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops autorun.inf file 1 TTPs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Suspicious use of SetThreadContext 11 IoCs
  • Drops file in Program Files directory 64 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 12 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Payment Confirmation.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Payment Confirmation.pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3656
    • C:\Users\Admin\AppData\Local\Temp\Payment Confirmation.pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\Payment Confirmation.pdf.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:824
      • C:\Users\Admin\AppData\Local\Temp\Payment Confirmation.pdf.exe
        "C:\Users\Admin\AppData\Local\Temp\Payment Confirmation.pdf.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:924
        • C:\Users\Admin\AppData\Local\Temp\Payment Confirmation.pdf.exe
          "C:\Users\Admin\AppData\Local\Temp\Payment Confirmation.pdf.exe"
          4⤵
          • Suspicious use of SetThreadContext
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:676
          • C:\Users\Admin\AppData\Local\Temp\Payment Confirmation.pdf.exe
            "C:\Users\Admin\AppData\Local\Temp\Payment Confirmation.pdf.exe"
            5⤵
            • Suspicious use of SetThreadContext
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:3468
            • C:\Users\Admin\AppData\Local\Temp\Payment Confirmation.pdf.exe
              "C:\Users\Admin\AppData\Local\Temp\Payment Confirmation.pdf.exe"
              6⤵
              • Suspicious use of SetThreadContext
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:3036
              • C:\Users\Admin\AppData\Local\Temp\Payment Confirmation.pdf.exe
                "C:\Users\Admin\AppData\Local\Temp\Payment Confirmation.pdf.exe"
                7⤵
                • Suspicious use of SetThreadContext
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of WriteProcessMemory
                PID:1020
                • C:\Users\Admin\AppData\Local\Temp\Payment Confirmation.pdf.exe
                  "C:\Users\Admin\AppData\Local\Temp\Payment Confirmation.pdf.exe"
                  8⤵
                  • Drops startup file
                  • Drops file in Program Files directory
                  • Drops file in Windows directory
                  PID:3536
              • C:\Users\Admin\AppData\Roaming\Microsoft\AeLookupSvi.exe
                "C:\Users\Admin\AppData\Roaming\Microsoft\AeLookupSvi.exe"
                7⤵
                • Executes dropped EXE
                • Adds Run key to start application
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of WriteProcessMemory
                PID:3720
                • C:\Users\Admin\AppData\Roaming\Microsoft\ProfSvc.exe
                  "C:\Users\Admin\AppData\Roaming\Microsoft\ProfSvc.exe"
                  8⤵
                  • Executes dropped EXE
                  PID:1324
                  • C:\Users\Admin\AppData\Roaming\Microsoft\ProfSvc.exe
                    "C:\Users\Admin\AppData\Roaming\Microsoft\ProfSvc.exe"
                    9⤵
                    • Executes dropped EXE
                    PID:1608
                  • C:\Users\Admin\AppData\Roaming\Microsoft\ProfSvc.exe
                    "C:\Users\Admin\AppData\Roaming\Microsoft\ProfSvc.exe"
                    9⤵
                    • Executes dropped EXE
                    • Suspicious use of AdjustPrivilegeToken
                    PID:2244
            • C:\Users\Admin\AppData\Roaming\Microsoft\LookupSvi.exe
              "C:\Users\Admin\AppData\Roaming\Microsoft\LookupSvi.exe"
              6⤵
              • Executes dropped EXE
              • Adds Run key to start application
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:1836
              • C:\Users\Admin\AppData\Roaming\Microsoft\secdrv.exe
                "C:\Users\Admin\AppData\Roaming\Microsoft\secdrv.exe"
                7⤵
                • Executes dropped EXE
                • Suspicious use of SetThreadContext
                PID:3944
                • C:\Users\Admin\AppData\Roaming\Microsoft\secdrv.exe
                  "C:\Users\Admin\AppData\Roaming\Microsoft\secdrv.exe"
                  8⤵
                  • Executes dropped EXE
                  • Suspicious use of SetThreadContext
                  • Suspicious use of AdjustPrivilegeToken
                  PID:652
                  • C:\Users\Admin\AppData\Roaming\Microsoft\secdrv.exe
                    "C:\Users\Admin\AppData\Roaming\Microsoft\secdrv.exe"
                    9⤵
                    • Executes dropped EXE
                    • Suspicious use of SetThreadContext
                    • Suspicious use of AdjustPrivilegeToken
                    PID:2544
                    • C:\Users\Admin\AppData\Roaming\Microsoft\secdrv.exe
                      "C:\Users\Admin\AppData\Roaming\Microsoft\secdrv.exe"
                      10⤵
                      • Executes dropped EXE
                      • Suspicious use of SetThreadContext
                      • Suspicious use of AdjustPrivilegeToken
                      PID:1236
                      • C:\Users\Admin\AppData\Roaming\Microsoft\secdrv.exe
                        "C:\Users\Admin\AppData\Roaming\Microsoft\secdrv.exe"
                        11⤵
                        • Executes dropped EXE
                        PID:1016

Network

        MITRE ATT&CK Enterprise v6

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        Downloads

        memory/652-226-0x0000000005200000-0x00000000056FE000-memory.dmp

        memory/676-149-0x0000000000400000-0x0000000000528000-memory.dmp

        memory/676-156-0x0000000005430000-0x0000000005437000-memory.dmp

        memory/676-158-0x0000000004FF0000-0x00000000054EE000-memory.dmp

        memory/824-137-0x00000000057E0000-0x0000000005872000-memory.dmp

        memory/824-128-0x0000000000400000-0x0000000000540000-memory.dmp

        memory/824-135-0x0000000005D30000-0x0000000005D36000-memory.dmp

        memory/924-146-0x0000000005AA0000-0x0000000005AA7000-memory.dmp

        memory/924-138-0x0000000000400000-0x0000000000534000-memory.dmp

        memory/924-148-0x0000000005590000-0x0000000005591000-memory.dmp

        memory/1016-258-0x00000000052D0000-0x00000000057CE000-memory.dmp

        memory/1020-203-0x0000000004FA0000-0x000000000549E000-memory.dmp

        memory/1020-193-0x0000000000400000-0x00000000004EA000-memory.dmp

        memory/1020-199-0x0000000002910000-0x0000000002916000-memory.dmp

        memory/1236-245-0x0000000004C80000-0x000000000517E000-memory.dmp

        memory/1836-180-0x0000000003080000-0x0000000003081000-memory.dmp

        memory/2244-268-0x00000000050E0000-0x00000000055DE000-memory.dmp

        memory/2544-236-0x0000000005320000-0x000000000581E000-memory.dmp

        memory/3036-169-0x0000000000400000-0x0000000000500000-memory.dmp

        memory/3036-176-0x0000000005280000-0x0000000005312000-memory.dmp

        memory/3036-175-0x0000000005290000-0x0000000005296000-memory.dmp

        memory/3468-167-0x00000000058A0000-0x00000000058A8000-memory.dmp

        memory/3468-159-0x0000000000400000-0x000000000051A000-memory.dmp

        memory/3468-166-0x0000000005760000-0x0000000005C5E000-memory.dmp

        memory/3536-209-0x0000000000400000-0x00000000004DB000-memory.dmp

        memory/3536-212-0x0000000000DC0000-0x0000000000E6E000-memory.dmp

        memory/3536-211-0x0000000000400000-0x00000000004DB000-memory.dmp

        memory/3656-127-0x0000000007E60000-0x00000000080E3000-memory.dmp

        memory/3656-122-0x0000000004F70000-0x0000000004F71000-memory.dmp

        memory/3656-120-0x0000000005440000-0x0000000005441000-memory.dmp

        memory/3656-118-0x00000000004F0000-0x00000000004F1000-memory.dmp

        memory/3656-121-0x0000000004FE0000-0x0000000004FE1000-memory.dmp

        memory/3656-123-0x0000000004F40000-0x000000000543E000-memory.dmp

        memory/3656-126-0x0000000007800000-0x0000000007801000-memory.dmp

        memory/3656-125-0x0000000007480000-0x0000000007481000-memory.dmp

        memory/3656-124-0x0000000007470000-0x0000000007475000-memory.dmp

        memory/3720-204-0x0000000002870000-0x0000000002871000-memory.dmp

        memory/3944-191-0x0000000005250000-0x000000000574E000-memory.dmp

        memory/3944-190-0x00000000071D0000-0x00000000071D1000-memory.dmp