Analysis

  • max time kernel
    148s
  • max time network
    147s
  • platform
    windows10_x64
  • resource
    win10
  • submitted
    13/10/2020, 16:51

General

  • Target
    826d68f6e4a2c308e91aad81c8368443.exe
  • Size 1.3MB
  • Sample201013-3wf7cjg86s
  • SHA256 c686c7b2fff2ad2853c1d450d44fcf96ff3df67f34205b6b4e0352153893c924
  • MD5 SHA1 SHA512

Malware Config

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers.

  • Azorult

    An information stealer that was first discovered in 2016, targeting browsing history and passwords.

  • Contains code to disable Windows Defender 3 IoCs

    A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

  • ModiLoader, DBatLoader

    ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.

  • Modifies Windows Defender Real-time Protection settings 3 TTPs
  • Oski

    Oski is an infostealer targeting browser data, crypto wallets.

  • Raccoon

    Simple but powerful infostealer which was very active in 2019.

  • ModiLoader First Stage 1 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 12 IoCs
  • Loads dropped DLL 11 IoCs
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Windows security modification 2 TTPs 2 IoCs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops desktop.ini file(s) 1 IoCs
  • Suspicious use of SetThreadContext 6 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 1 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Kills process with taskkill 2 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\826d68f6e4a2c308e91aad81c8368443.exe
    "C:\Users\Admin\AppData\Local\Temp\826d68f6e4a2c308e91aad81c8368443.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:720
    • C:\Users\Admin\AppData\Local\Temp\Gdyhfdfg.exe
      "C:\Users\Admin\AppData\Local\Temp\Gdyhfdfg.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2456
      • C:\Users\Admin\AppData\Local\Temp\Gdyhfdfg.exe
        "C:\Users\Admin\AppData\Local\Temp\Gdyhfdfg.exe"
        3⤵
        • Executes dropped EXE
        PID:404
    • C:\Users\Admin\AppData\Local\Temp\Iytrgbdsf.exe
      "C:\Users\Admin\AppData\Local\Temp\Iytrgbdsf.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3908
      • C:\Users\Admin\AppData\Local\Temp\Iytrgbdsf.exe
        "C:\Users\Admin\AppData\Local\Temp\Iytrgbdsf.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Checks processor information in registry
        • Suspicious use of WriteProcessMemory
        PID:876
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c taskkill /pid 876 & erase C:\Users\Admin\AppData\Local\Temp\Iytrgbdsf.exe & RD /S /Q C:\\ProgramData\\365579113388757\\* & exit
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:480
          • C:\Windows\SysWOW64\taskkill.exe
            taskkill /pid 876
            5⤵
            • Kills process with taskkill
            • Suspicious use of AdjustPrivilegeToken
            PID:3500
    • C:\Users\Admin\AppData\Local\Temp\826d68f6e4a2c308e91aad81c8368443.exe
      "C:\Users\Admin\AppData\Local\Temp\826d68f6e4a2c308e91aad81c8368443.exe"
      2⤵
      • Loads dropped DLL
      • Drops desktop.ini file(s)
      • Suspicious use of WriteProcessMemory
      PID:3948
      • C:\Users\Admin\AppData\Local\Temp\0ccVX33fOj.exe
        "C:\Users\Admin\AppData\Local\Temp\0ccVX33fOj.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:656
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
          "Powershell" Add-MpPreference -ExclusionPath '"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\VideoLAN\ddvlc.exe"'
          4⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:2364
        • C:\Users\Admin\AppData\Local\Temp\0ccVX33fOj.exe
          "C:\Users\Admin\AppData\Local\Temp\0ccVX33fOj.exe"
          4⤵
          • Executes dropped EXE
          PID:2504
      • C:\Users\Admin\AppData\Local\Temp\lqjgXwjmWN.exe
        "C:\Users\Admin\AppData\Local\Temp\lqjgXwjmWN.exe"
        3⤵
        • Executes dropped EXE
        • Modifies system certificate store
        PID:2688
        • C:\Windows\SysWOW64\Notepad.exe
          "C:\Windows\System32\Notepad.exe"
          4⤵
            PID:5584
        • C:\Users\Admin\AppData\Local\Temp\bfk1USsOJ5.exe
          "C:\Users\Admin\AppData\Local\Temp\bfk1USsOJ5.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:4036
          • C:\Users\Admin\AppData\Local\Temp\bfk1USsOJ5.exe
            "C:\Users\Admin\AppData\Local\Temp\bfk1USsOJ5.exe"
            4⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:2068
            • \??\c:\windows\SysWOW64\cmstp.exe
              "c:\windows\system32\cmstp.exe" /au C:\Windows\temp\euxse45q.inf
              5⤵
                PID:3436
          • C:\Users\Admin\AppData\Local\Temp\wSepg5d4fF.exe
            "C:\Users\Admin\AppData\Local\Temp\wSepg5d4fF.exe"
            3⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of AdjustPrivilegeToken
            PID:3544
            • C:\Users\Admin\AppData\Local\Temp\wSepg5d4fF.exe
              "C:\Users\Admin\AppData\Local\Temp\wSepg5d4fF.exe"
              4⤵
              • Executes dropped EXE
              • Windows security modification
              PID:1088
              • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
                "powershell" Get-MpPreference -verbose
                5⤵
                • Suspicious use of AdjustPrivilegeToken
                PID:1360
          • C:\Windows\SysWOW64\cmd.exe
            cmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\826d68f6e4a2c308e91aad81c8368443.exe"
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:3836
            • C:\Windows\SysWOW64\timeout.exe
              timeout /T 10 /NOBREAK
              4⤵
              • Delays execution with timeout.exe
              PID:3784
      • C:\Windows\SysWOW64\DllHost.exe
        C:\Windows\SysWOW64\DllHost.exe /Processid:{3E5FC7F9-9A51-4367-9063-A120244FBEC7}
        1⤵
          PID:3608
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c start C:\Windows\temp\vrpaqpx4.exe
            2⤵
              PID:3416
              • C:\Windows\temp\vrpaqpx4.exe
                C:\Windows\temp\vrpaqpx4.exe
                3⤵
                • Executes dropped EXE
                PID:2836
                • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                  "powershell" Get-MpPreference -verbose
                  4⤵
                  • Suspicious use of AdjustPrivilegeToken
                  PID:1456
                • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Set-MpPreference -DisableArchiveScanning $true
                  4⤵
                  • Suspicious use of AdjustPrivilegeToken
                  PID:4424
                • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Set-MpPreference -DisableBlockAtFirstSeen $true
                  4⤵
                  • Suspicious use of AdjustPrivilegeToken
                  PID:4456
                • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Set-MpPreference -DisableIOAVProtection $true
                  4⤵
                  • Suspicious use of AdjustPrivilegeToken
                  PID:4500
                • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Set-MpPreference -DisablePrivacyMode $true
                  4⤵
                  • Suspicious use of AdjustPrivilegeToken
                  PID:4564
                • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Set-MpPreference -DisableScriptScanning $true
                  4⤵
                  • Suspicious use of AdjustPrivilegeToken
                  PID:4640
                • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Set-MpPreference -HighThreatDefaultAction 6 -Force
                  4⤵
                  • Suspicious use of AdjustPrivilegeToken
                  PID:4740
                • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Set-MpPreference -LowThreatDefaultAction 6
                  4⤵
                  • Suspicious use of AdjustPrivilegeToken
                  PID:4844
                • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Set-MpPreference -MAPSReporting 0
                  4⤵
                  • Suspicious use of AdjustPrivilegeToken
                  PID:4960
                • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Set-MpPreference -ModerateThreatDefaultAction 6
                  4⤵
                  • Suspicious use of AdjustPrivilegeToken
                  PID:5064
                • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Set-MpPreference -SevereThreatDefaultAction 6
                  4⤵
                  • Suspicious use of AdjustPrivilegeToken
                  PID:4208
                • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Set-MpPreference -SignatureDisableUpdateOnStartupWithoutEngine $true
                  4⤵
                  • Suspicious use of AdjustPrivilegeToken
                  PID:4288
                • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Set-MpPreference -SubmitSamplesConsent 2
                  4⤵
                  • Suspicious use of AdjustPrivilegeToken
                  PID:4412
            • C:\Windows\SysWOW64\taskkill.exe
              taskkill /IM cmstp.exe /F
              2⤵
              • Kills process with taskkill
              • Suspicious use of AdjustPrivilegeToken
              PID:1480

          Network

                MITRE ATT&CK Enterprise v6

                Replay Monitor

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                Downloads

                memory/404-17-0x0000000000400000-0x0000000000423000-memory.dmp

                memory/404-22-0x0000000000400000-0x0000000000423000-memory.dmp

                memory/656-64-0x0000000005C20000-0x0000000005C21000-memory.dmp

                memory/656-71-0x0000000005760000-0x0000000005787000-memory.dmp

                memory/656-56-0x0000000000F70000-0x0000000000F71000-memory.dmp

                memory/656-47-0x0000000071FA0000-0x000000007268E000-memory.dmp

                memory/876-21-0x0000000000400000-0x0000000000437000-memory.dmp

                memory/876-15-0x0000000000400000-0x0000000000437000-memory.dmp

                memory/1088-99-0x0000000071FA0000-0x000000007268E000-memory.dmp

                memory/1088-93-0x0000000000400000-0x0000000000418000-memory.dmp

                memory/1360-127-0x00000000085A0000-0x00000000085A1000-memory.dmp

                memory/1360-179-0x0000000009820000-0x0000000009821000-memory.dmp

                memory/1360-164-0x0000000009880000-0x0000000009881000-memory.dmp

                memory/1360-146-0x0000000009360000-0x0000000009393000-memory.dmp

                memory/1360-110-0x0000000071FA0000-0x000000007268E000-memory.dmp

                memory/1456-163-0x0000024F260D0000-0x0000024F260D1000-memory.dmp

                memory/1456-139-0x00007FFFBC6B0000-0x00007FFFBD09C000-memory.dmp

                memory/1456-142-0x0000024F25F20000-0x0000024F25F21000-memory.dmp

                memory/2068-120-0x00000000059B0000-0x00000000059B1000-memory.dmp

                memory/2068-121-0x0000000005960000-0x0000000005961000-memory.dmp

                memory/2068-89-0x0000000001580000-0x0000000001585000-memory.dmp

                memory/2068-79-0x0000000071FA0000-0x000000007268E000-memory.dmp

                memory/2068-75-0x0000000000400000-0x0000000000418000-memory.dmp

                memory/2364-124-0x0000000007F00000-0x0000000007F01000-memory.dmp

                memory/2364-107-0x0000000006C60000-0x0000000006C61000-memory.dmp

                memory/2364-98-0x0000000006CC0000-0x0000000006CC1000-memory.dmp

                memory/2364-122-0x0000000007510000-0x0000000007511000-memory.dmp

                memory/2364-87-0x0000000071FA0000-0x000000007268E000-memory.dmp

                memory/2364-111-0x0000000007600000-0x0000000007601000-memory.dmp

                memory/2364-109-0x0000000007460000-0x0000000007461000-memory.dmp

                memory/2364-161-0x0000000008DD0000-0x0000000008DD1000-memory.dmp

                memory/2364-170-0x0000000008F70000-0x0000000008F71000-memory.dmp

                memory/2364-94-0x00000000041E0000-0x00000000041E1000-memory.dmp

                memory/2364-108-0x0000000007540000-0x0000000007541000-memory.dmp

                memory/2364-159-0x0000000007DA0000-0x0000000007DA1000-memory.dmp

                memory/2504-85-0x0000000071FA0000-0x000000007268E000-memory.dmp

                memory/2504-78-0x0000000000400000-0x000000000042A000-memory.dmp

                memory/2504-141-0x00000000051E0000-0x00000000051E1000-memory.dmp

                memory/2688-189-0x0000000002370000-0x000000000237F000-memory.dmp

                memory/2836-135-0x0000000000390000-0x0000000000391000-memory.dmp

                memory/2836-134-0x00007FFFBC6B0000-0x00007FFFBD09C000-memory.dmp

                memory/3436-104-0x00000000043D0000-0x00000000043D1000-memory.dmp

                memory/3544-62-0x0000000071FA0000-0x000000007268E000-memory.dmp

                memory/3544-66-0x0000000000ED0000-0x0000000000ED1000-memory.dmp

                memory/3544-86-0x00000000056C0000-0x00000000056DE000-memory.dmp

                memory/3948-12-0x0000000000400000-0x0000000000496000-memory.dmp

                memory/3948-14-0x0000000000400000-0x0000000000496000-memory.dmp

                memory/4036-54-0x0000000071FA0000-0x000000007268E000-memory.dmp

                memory/4036-72-0x0000000004B30000-0x0000000004B3D000-memory.dmp

                memory/4036-70-0x0000000004B10000-0x0000000004B2D000-memory.dmp

                memory/4036-61-0x0000000000340000-0x0000000000341000-memory.dmp

                memory/4208-203-0x00007FFFBC6B0000-0x00007FFFBD09C000-memory.dmp

                memory/4288-206-0x00007FFFBC6B0000-0x00007FFFBD09C000-memory.dmp

                memory/4412-209-0x00007FFFBC6B0000-0x00007FFFBD09C000-memory.dmp

                memory/4424-176-0x00007FFFBC6B0000-0x00007FFFBD09C000-memory.dmp

                memory/4456-178-0x00007FFFBC6B0000-0x00007FFFBD09C000-memory.dmp

                memory/4500-184-0x00007FFFBC6B0000-0x00007FFFBD09C000-memory.dmp

                memory/4564-185-0x00007FFFBC6B0000-0x00007FFFBD09C000-memory.dmp

                memory/4640-187-0x00007FFFBC6B0000-0x00007FFFBD09C000-memory.dmp

                memory/4740-190-0x00007FFFBC6B0000-0x00007FFFBD09C000-memory.dmp

                memory/4844-193-0x00007FFFBC6B0000-0x00007FFFBD09C000-memory.dmp

                memory/4960-196-0x00007FFFBC6B0000-0x00007FFFBD09C000-memory.dmp

                memory/5064-201-0x00007FFFBC6B0000-0x00007FFFBD09C000-memory.dmp

                memory/5584-242-0x0000000002AD0000-0x0000000002AD1000-memory.dmp

                memory/5584-240-0x0000000002A10000-0x0000000002A11000-memory.dmp