Analysis

  • max time kernel
    60s
  • max time network
    64s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    06-03-2021 07:08

General

  • Target

    Setup.exe

  • Size

    4.2MB

  • MD5

    afd51e2ff7beac4d0c88d8f872d6d0d5

  • SHA1

    185fd4793db912410de63ac7a5a3b1ac9c266b38

  • SHA256

    cecdc8bd4344647b2182696cf04e1db4fbb29aee6b46811999008901910b5c19

  • SHA512

    eed33fd55a82fceea21f522a6c59d3e318d7e73c86e9b1f039e37b3ccd6c0b58df24dabfcb71d8ccb818dd236cc329804d6a947240619ad26aed8713fe19a418

Malware Config

Signatures

  • Nirsoft 6 IoCs
  • Executes dropped EXE 7 IoCs
  • Suspicious Office macro 1 IoCs

    Office document equipped with 4.0 macros.

  • Loads dropped DLL 11 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Enumerates connected drives 3 TTPs 48 IoCs

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

  • Writes to the Master Boot Record (MBR) 1 TTPs 4 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Checks SCSI registry key(s) 3 TTPs 12 IoCs

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

  • Kills process with taskkill 1 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Runs ping.exe 1 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 63 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Setup.exe
    "C:\Users\Admin\AppData\Local\Temp\Setup.exe"
    1⤵
    • Writes to the Master Boot Record (MBR)
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Modifies system certificate store
    • Suspicious use of WriteProcessMemory
    PID:4776
    • C:\Windows\SysWOW64\msiexec.exe
      msiexec.exe /i "C:\Users\Admin\AppData\Local\Temp\gdiview.msi"
      2⤵
      • Enumerates connected drives
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      PID:768
    • C:\Users\Admin\AppData\Local\Temp\C0CA61A12E4C8B38.exe
      C:\Users\Admin\AppData\Local\Temp\C0CA61A12E4C8B38.exe 0011 installp1
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Writes to the Master Boot Record (MBR)
      • Suspicious use of SetThreadContext
      • Checks SCSI registry key(s)
      • Suspicious use of WriteProcessMemory
      PID:4496
      • C:\Program Files\Mozilla Firefox\firefox.exe
        "C:\Program Files\Mozilla Firefox\firefox.exe"
        3⤵
          PID:64
        • C:\Users\Admin\AppData\Roaming\1615014383548.exe
          "C:\Users\Admin\AppData\Roaming\1615014383548.exe" /sjson "C:\Users\Admin\AppData\Roaming\1615014383548.txt"
          3⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          PID:1684
        • C:\Program Files\Mozilla Firefox\firefox.exe
          "C:\Program Files\Mozilla Firefox\firefox.exe"
          3⤵
            PID:2564
          • C:\Users\Admin\AppData\Roaming\1615014388360.exe
            "C:\Users\Admin\AppData\Roaming\1615014388360.exe" /sjson "C:\Users\Admin\AppData\Roaming\1615014388360.txt"
            3⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            PID:2580
          • C:\Program Files\Mozilla Firefox\firefox.exe
            "C:\Program Files\Mozilla Firefox\firefox.exe"
            3⤵
              PID:2936
            • C:\Users\Admin\AppData\Roaming\1615014393579.exe
              "C:\Users\Admin\AppData\Roaming\1615014393579.exe" /sjson "C:\Users\Admin\AppData\Roaming\1615014393579.txt"
              3⤵
              • Executes dropped EXE
              • Suspicious behavior: EnumeratesProcesses
              PID:2696
            • C:\Users\Admin\AppData\Local\Temp\download\ThunderFW.exe
              C:\Users\Admin\AppData\Local\Temp\download\ThunderFW.exe ThunderFW "C:\Users\Admin\AppData\Local\Temp\download\MiniThunderPlatform.exe"
              3⤵
              • Executes dropped EXE
              PID:2684
            • C:\Users\Admin\AppData\Local\Temp\download\MiniThunderPlatform.exe
              "C:\Users\Admin\AppData\Local\Temp\download\MiniThunderPlatform.exe" -StartTP
              3⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Writes to the Master Boot Record (MBR)
              PID:188
          • C:\Users\Admin\AppData\Local\Temp\C0CA61A12E4C8B38.exe
            C:\Users\Admin\AppData\Local\Temp\C0CA61A12E4C8B38.exe 200 installp1
            2⤵
            • Executes dropped EXE
            • Writes to the Master Boot Record (MBR)
            • Checks SCSI registry key(s)
            • Suspicious use of WriteProcessMemory
            PID:4520
            • C:\Windows\SysWOW64\cmd.exe
              cmd.exe /c taskkill /f /im chrome.exe
              3⤵
              • Suspicious use of WriteProcessMemory
              PID:992
              • C:\Windows\SysWOW64\taskkill.exe
                taskkill /f /im chrome.exe
                4⤵
                • Kills process with taskkill
                PID:1268
            • C:\Windows\SysWOW64\cmd.exe
              cmd /c ping 127.0.0.1 -n 3 & del "C:\Users\Admin\AppData\Local\Temp\C0CA61A12E4C8B38.exe"
              3⤵
              • Suspicious use of WriteProcessMemory
              PID:1548
              • C:\Windows\SysWOW64\PING.EXE
                ping 127.0.0.1 -n 3
                4⤵
                • Runs ping.exe
                PID:2304
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c ping 127.0.0.1 -n 3 & del "C:\Users\Admin\AppData\Local\Temp\Setup.exe"
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4560
            • C:\Windows\SysWOW64\PING.EXE
              ping 127.0.0.1 -n 3
              3⤵
              • Runs ping.exe
              PID:436
        • C:\Windows\system32\msiexec.exe
          C:\Windows\system32\msiexec.exe /V
          1⤵
          • Enumerates connected drives
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:3280
          • C:\Windows\syswow64\MsiExec.exe
            C:\Windows\syswow64\MsiExec.exe -Embedding 1D733840332A00E82564A23D39DC970A C
            2⤵
            • Loads dropped DLL
            PID:3372

        Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • memory/64-20-0x0000000010000000-0x0000000010057000-memory.dmp

          Filesize

          348KB

        • memory/64-21-0x00000190C23A0000-0x00000190C23A1000-memory.dmp

          Filesize

          4KB

        • memory/2564-35-0x0000019EB0460000-0x0000019EB0461000-memory.dmp

          Filesize

          4KB

        • memory/2936-42-0x0000023C47360000-0x0000023C47361000-memory.dmp

          Filesize

          4KB

        • memory/4496-17-0x0000000002DF0000-0x000000000329F000-memory.dmp

          Filesize

          4.7MB

        • memory/4496-14-0x0000000010000000-0x000000001033E000-memory.dmp

          Filesize

          3.2MB

        • memory/4520-18-0x0000000002E70000-0x000000000331F000-memory.dmp

          Filesize

          4.7MB

        • memory/4776-2-0x0000000010000000-0x000000001033E000-memory.dmp

          Filesize

          3.2MB