Analysis

  • max time kernel
    151s
  • max time network
    161s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    15-05-2021 07:17

General

  • Target

    5f170e10de8753eb1199b6ebf9098c1f37a684a9128ac1082bcc2f04d4079898.exe

  • Size

    4.5MB

  • MD5

    b0a1bc98a73714157640946afacaedb6

  • SHA1

    98eaa35b9cf69326af51e047ea3c4128f1754732

  • SHA256

    5f170e10de8753eb1199b6ebf9098c1f37a684a9128ac1082bcc2f04d4079898

  • SHA512

    320e65d63ff49366c1f6f19cbe79ab75d46829ab54e0e892581fcfd21e5c455fb13d5eed9de7daacc3872710bb88dbff9285a8d6517bf8d5ce1b7c6f9e897230

Malware Config

Signatures

  • RMS

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

  • ACProtect 1.3x - 1.4x DLL software 2 IoCs

    Detects file using ACProtect software.

  • ASPack v2.12-2.42 9 IoCs

    Detects executables packed with ASPack v2.12-2.42

  • Executes dropped EXE 7 IoCs
  • Sets file to hidden 1 TTPs

    Modifies file attributes to stop it showing in Explorer etc.

  • UPX packed file 2 IoCs

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

  • Drops file in System32 directory 3 IoCs
  • Drops file in Program Files directory 30 IoCs
  • Launches sc.exe

    Sc.exe is a Windows utlilty to control services on the system.

  • Enumerates physical storage devices 1 TTPs

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

  • Delays execution with timeout.exe 2 IoCs
  • Kills process with taskkill 4 IoCs
  • Modifies registry class 1 IoCs
  • Runs .reg file with regedit 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 18 IoCs
  • Suspicious behavior: SetClipboardViewer 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 9 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Views/modifies file attributes 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5f170e10de8753eb1199b6ebf9098c1f37a684a9128ac1082bcc2f04d4079898.exe
    "C:\Users\Admin\AppData\Local\Temp\5f170e10de8753eb1199b6ebf9098c1f37a684a9128ac1082bcc2f04d4079898.exe"
    1⤵
    • Drops file in Program Files directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:744
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Program Files (x86)\System\install.vbs"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2840
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Program Files (x86)\System\install.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3568
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Program Files (x86)\System" +H +S /S /D
          4⤵
          • Drops file in Program Files directory
          • Views/modifies file attributes
          PID:1524
        • C:\Windows\SysWOW64\attrib.exe
          attrib "C:\Program Files (x86)\System\*.*" +H +S /S /D
          4⤵
          • Drops file in Program Files directory
          • Views/modifies file attributes
          PID:2736
        • C:\Windows\SysWOW64\taskkill.exe
          taskkill /f /im rutserv.exe
          4⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:1348
        • C:\Windows\SysWOW64\taskkill.exe
          Taskkill /f /im rutserv.exe
          4⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:3164
        • C:\Windows\SysWOW64\taskkill.exe
          taskkill /f /im rfusclient.exe
          4⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:3964
        • C:\Windows\SysWOW64\taskkill.exe
          Taskkill /f /im rfusclient.exe
          4⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:3860
        • C:\Windows\SysWOW64\reg.exe
          reg delete "HKLM\SYSTEM\Remote Manipulator System" /f
          4⤵
            PID:1912
          • C:\Windows\SysWOW64\regedit.exe
            regedit /s "regedit.reg"
            4⤵
            • Runs .reg file with regedit
            PID:2216
          • C:\Windows\SysWOW64\timeout.exe
            timeout 2
            4⤵
            • Delays execution with timeout.exe
            PID:3060
          • C:\Program Files (x86)\System\rutserv.exe
            rutserv.exe /silentinstall
            4⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of SetWindowsHookEx
            PID:2320
          • C:\Program Files (x86)\System\rutserv.exe
            rutserv.exe /firewall
            4⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of SetWindowsHookEx
            PID:2340
          • C:\Program Files (x86)\System\rutserv.exe
            rutserv.exe /start
            4⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of SetWindowsHookEx
            PID:2348
          • C:\Windows\SysWOW64\sc.exe
            sc failure RManService reset= 0 actions= restart/1000/restart/1000/restart/1000
            4⤵
              PID:3600
            • C:\Windows\SysWOW64\sc.exe
              sc config RManService obj= LocalSystem type= interact type= own
              4⤵
                PID:3652
              • C:\Windows\SysWOW64\sc.exe
                sc config RManService DisplayName= "Windows_Defender v6.3"
                4⤵
                  PID:3164
                • C:\Windows\SysWOW64\timeout.exe
                  timeout 120
                  4⤵
                  • Delays execution with timeout.exe
                  PID:3964
                • C:\Windows\SysWOW64\reg.exe
                  reg export "HKEY_LOCAL_MACHINE\SYSTEM\Remote Manipulator System\v4" "id.txt"
                  4⤵
                  • Drops file in Program Files directory
                  PID:2148
          • C:\Program Files (x86)\System\rutserv.exe
            "C:\Program Files (x86)\System\rutserv.exe"
            1⤵
            • Executes dropped EXE
            • Drops file in System32 directory
            • Drops file in Program Files directory
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:2288
            • C:\Program Files (x86)\System\rfusclient.exe
              "C:\Program Files (x86)\System\rfusclient.exe" /tray
              2⤵
              • Executes dropped EXE
              PID:592
            • C:\Program Files (x86)\System\rfusclient.exe
              "C:\Program Files (x86)\System\rfusclient.exe"
              2⤵
              • Executes dropped EXE
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:3172
              • C:\Program Files (x86)\System\rfusclient.exe
                "C:\Program Files (x86)\System\rfusclient.exe" /tray
                3⤵
                • Executes dropped EXE
                • Suspicious behavior: SetClipboardViewer
                PID:2556

          Network

          MITRE ATT&CK Matrix ATT&CK v6

          Persistence

          Hidden Files and Directories

          2
          T1158

          Defense Evasion

          Hidden Files and Directories

          2
          T1158

          Discovery

          System Information Discovery

          1
          T1082

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Program Files (x86)\System\install.bat
            MD5

            6a3fa56f41cd7c001937ec0d7f6707ee

            SHA1

            f1e9908d2396510fe1d348fdc2b92dec204fc845

            SHA256

            7bc5d01ae15bdb23c0f3885252a4a40ba87474d445589dab7d1fd78b377c8a8d

            SHA512

            6573c30c53627495285652845d4eea646810af7e58dd21ab7a78d3a282f54b71291d02018380df5521aeb69ccfe391946082641caec39d616dc8d622385198f9

          • C:\Program Files (x86)\System\install.vbs
            MD5

            c719a030434d3fa96d62868f27e904a6

            SHA1

            f2f750a752dd1fda8915a47b082af7cf2d3e3655

            SHA256

            2696ee4302a85c6b4101fc6d1ce8e38b94fd9c2bbd1acc73b553576b3aacb92f

            SHA512

            47a9367f7596d19c0636766cd34ca3701d3b1239a284f2333fd04a48422f53b0df21002fd38a4f229f6a2f9f9e8163267e13ecb24d9ce6de1863d5f59ab04ff0

          • C:\Program Files (x86)\System\mailsend.exe
            MD5

            ac23b87f8ec60ddd3f555556f89a6af8

            SHA1

            3cea6f84757d15ee8d7fa19d3dfc4992c50aa90c

            SHA256

            80a1d0a15066c7af67cf5377e59e450c2a96018505236f8f3352173282b27ae4

            SHA512

            57e67eab9c2a3b94161500eb0091533a539454e9bfddd47c61477299de9455b7ca11c498c5d8a7d77f4763a2053acb4ff96868a9313fede29969edc16d35b167

          • C:\Program Files (x86)\System\regedit.reg
            MD5

            251212852a073e6fc5fbe3af92f66adb

            SHA1

            6ee07cb20f57830325c11867e68fea49ae0e87ea

            SHA256

            f2c83f4cc13b0cd28090dd128ec5ff221681118f6100eddaead88526070ceecb

            SHA512

            f3853ece99edc6d39edbf1c7bca471e71aa034684a85358b033e50418ffa061f1e8724cba76065048901c20c9f9a6dbd86a17ee33756c0452d4d3358047296be

          • C:\Program Files (x86)\System\rfusclient.exe
            MD5

            b8667a1e84567fcf7821bcefb6a444af

            SHA1

            9c1f91fe77ad357c8f81205d65c9067a270d61f0

            SHA256

            dc9d875e659421a51addd8e8a362c926369e84320ab0c5d8bbb1e4d12d372fc9

            SHA512

            ec6af663a3b41719d684f04504746f91196105ef6f8baa013b4bd02df6684eca49049d5517691f8e3a4ba6351fe35545a27f728b1d29d949e950d574a012f852

          • C:\Program Files (x86)\System\rfusclient.exe
            MD5

            b8667a1e84567fcf7821bcefb6a444af

            SHA1

            9c1f91fe77ad357c8f81205d65c9067a270d61f0

            SHA256

            dc9d875e659421a51addd8e8a362c926369e84320ab0c5d8bbb1e4d12d372fc9

            SHA512

            ec6af663a3b41719d684f04504746f91196105ef6f8baa013b4bd02df6684eca49049d5517691f8e3a4ba6351fe35545a27f728b1d29d949e950d574a012f852

          • C:\Program Files (x86)\System\rfusclient.exe
            MD5

            b8667a1e84567fcf7821bcefb6a444af

            SHA1

            9c1f91fe77ad357c8f81205d65c9067a270d61f0

            SHA256

            dc9d875e659421a51addd8e8a362c926369e84320ab0c5d8bbb1e4d12d372fc9

            SHA512

            ec6af663a3b41719d684f04504746f91196105ef6f8baa013b4bd02df6684eca49049d5517691f8e3a4ba6351fe35545a27f728b1d29d949e950d574a012f852

          • C:\Program Files (x86)\System\rfusclient.exe
            MD5

            b8667a1e84567fcf7821bcefb6a444af

            SHA1

            9c1f91fe77ad357c8f81205d65c9067a270d61f0

            SHA256

            dc9d875e659421a51addd8e8a362c926369e84320ab0c5d8bbb1e4d12d372fc9

            SHA512

            ec6af663a3b41719d684f04504746f91196105ef6f8baa013b4bd02df6684eca49049d5517691f8e3a4ba6351fe35545a27f728b1d29d949e950d574a012f852

          • C:\Program Files (x86)\System\rutserv.exe
            MD5

            37a8802017a212bb7f5255abc7857969

            SHA1

            cb10c0d343c54538d12db8ed664d0a1fa35b6109

            SHA256

            1699b9b4fc1724f9b0918b57ca58c453829a3935efd89bd4e9fa66b5e9f2b8a6

            SHA512

            4e20141da8ea4499daf8be5cc41b664dc4229e9575765caf6dc5873d8d0a09f9e200988e1404e767d0415005876a4cf38d5737bd3e1b2c12c4a8fb28adb4f0a0

          • C:\Program Files (x86)\System\rutserv.exe
            MD5

            37a8802017a212bb7f5255abc7857969

            SHA1

            cb10c0d343c54538d12db8ed664d0a1fa35b6109

            SHA256

            1699b9b4fc1724f9b0918b57ca58c453829a3935efd89bd4e9fa66b5e9f2b8a6

            SHA512

            4e20141da8ea4499daf8be5cc41b664dc4229e9575765caf6dc5873d8d0a09f9e200988e1404e767d0415005876a4cf38d5737bd3e1b2c12c4a8fb28adb4f0a0

          • C:\Program Files (x86)\System\rutserv.exe
            MD5

            37a8802017a212bb7f5255abc7857969

            SHA1

            cb10c0d343c54538d12db8ed664d0a1fa35b6109

            SHA256

            1699b9b4fc1724f9b0918b57ca58c453829a3935efd89bd4e9fa66b5e9f2b8a6

            SHA512

            4e20141da8ea4499daf8be5cc41b664dc4229e9575765caf6dc5873d8d0a09f9e200988e1404e767d0415005876a4cf38d5737bd3e1b2c12c4a8fb28adb4f0a0

          • C:\Program Files (x86)\System\rutserv.exe
            MD5

            37a8802017a212bb7f5255abc7857969

            SHA1

            cb10c0d343c54538d12db8ed664d0a1fa35b6109

            SHA256

            1699b9b4fc1724f9b0918b57ca58c453829a3935efd89bd4e9fa66b5e9f2b8a6

            SHA512

            4e20141da8ea4499daf8be5cc41b664dc4229e9575765caf6dc5873d8d0a09f9e200988e1404e767d0415005876a4cf38d5737bd3e1b2c12c4a8fb28adb4f0a0

          • C:\Program Files (x86)\System\rutserv.exe
            MD5

            37a8802017a212bb7f5255abc7857969

            SHA1

            cb10c0d343c54538d12db8ed664d0a1fa35b6109

            SHA256

            1699b9b4fc1724f9b0918b57ca58c453829a3935efd89bd4e9fa66b5e9f2b8a6

            SHA512

            4e20141da8ea4499daf8be5cc41b664dc4229e9575765caf6dc5873d8d0a09f9e200988e1404e767d0415005876a4cf38d5737bd3e1b2c12c4a8fb28adb4f0a0

          • C:\Program Files (x86)\System\vp8decoder.dll
            MD5

            88318158527985702f61d169434a4940

            SHA1

            3cc751ba256b5727eb0713aad6f554ff1e7bca57

            SHA256

            4c04d7968a9fe9d9258968d3a722263334bbf5f8af972f206a71f17fa293aa74

            SHA512

            5d88562b6c6d2a5b14390512712819238cd838914f7c48a27f017827cb9b825c24ff05a30333427acec93cd836e8f04158b86d17e6ac3dd62c55b2e2ff4e2aff

          • C:\Program Files (x86)\System\vp8encoder.dll
            MD5

            6298c0af3d1d563834a218a9cc9f54bd

            SHA1

            0185cd591e454ed072e5a5077b25c612f6849dc9

            SHA256

            81af82019d9f45a697a8ca1788f2c5c0205af9892efd94879dedf4bc06db4172

            SHA512

            389d89053689537cdb582c0e8a7951a84549f0c36484db4346c31bdbe7cb93141f6a354069eb13e550297dc8ec35cd6899746e0c16abc876a0fe542cc450fffe

          • memory/592-152-0x0000000000400000-0x00000000009B6000-memory.dmp
            Filesize

            5.7MB

          • memory/592-157-0x0000000000AA0000-0x0000000000AA1000-memory.dmp
            Filesize

            4KB

          • memory/592-148-0x0000000000000000-mapping.dmp
          • memory/1348-126-0x0000000000000000-mapping.dmp
          • memory/1524-118-0x0000000000000000-mapping.dmp
          • memory/1912-130-0x0000000000000000-mapping.dmp
          • memory/2148-164-0x0000000000000000-mapping.dmp
          • memory/2216-131-0x0000000000000000-mapping.dmp
          • memory/2288-147-0x00000000001F0000-0x00000000001F1000-memory.dmp
            Filesize

            4KB

          • memory/2288-146-0x0000000000400000-0x0000000000AB9000-memory.dmp
            Filesize

            6.7MB

          • memory/2320-135-0x0000000000400000-0x0000000000AB9000-memory.dmp
            Filesize

            6.7MB

          • memory/2320-136-0x0000000000AC0000-0x0000000000B6E000-memory.dmp
            Filesize

            696KB

          • memory/2320-133-0x0000000000000000-mapping.dmp
          • memory/2340-139-0x0000000000400000-0x0000000000AB9000-memory.dmp
            Filesize

            6.7MB

          • memory/2340-140-0x0000000000AC0000-0x0000000000B6E000-memory.dmp
            Filesize

            696KB

          • memory/2340-137-0x0000000000000000-mapping.dmp
          • memory/2348-141-0x0000000000000000-mapping.dmp
          • memory/2348-145-0x0000000000D30000-0x0000000000D31000-memory.dmp
            Filesize

            4KB

          • memory/2556-160-0x0000000000000000-mapping.dmp
          • memory/2556-163-0x0000000000AE0000-0x0000000000C2A000-memory.dmp
            Filesize

            1.3MB

          • memory/2556-162-0x0000000000400000-0x00000000009B6000-memory.dmp
            Filesize

            5.7MB

          • memory/2736-119-0x0000000000000000-mapping.dmp
          • memory/2840-114-0x0000000000000000-mapping.dmp
          • memory/3060-132-0x0000000000000000-mapping.dmp
          • memory/3164-127-0x0000000000000000-mapping.dmp
          • memory/3164-156-0x0000000000000000-mapping.dmp
          • memory/3172-153-0x0000000000400000-0x00000000009B6000-memory.dmp
            Filesize

            5.7MB

          • memory/3172-158-0x0000000000A50000-0x0000000000B9A000-memory.dmp
            Filesize

            1.3MB

          • memory/3172-149-0x0000000000000000-mapping.dmp
          • memory/3568-117-0x0000000000000000-mapping.dmp
          • memory/3600-154-0x0000000000000000-mapping.dmp
          • memory/3652-155-0x0000000000000000-mapping.dmp
          • memory/3860-129-0x0000000000000000-mapping.dmp
          • memory/3964-159-0x0000000000000000-mapping.dmp
          • memory/3964-128-0x0000000000000000-mapping.dmp