Analysis

  • max time kernel
    150s
  • max time network
    138s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    02/03/2025, 18:21

General

  • Target

    MasonRootkit.exe

  • Size

    231KB

  • MD5

    265b52aa4d100784d7cd39258d5e4d21

  • SHA1

    5b708da62d55364477ffb77e7feb4193f4635f92

  • SHA256

    9d08e5e62b409ef1ccd05c7996eb5432e4a36f55642cb7441d153909e823f144

  • SHA512

    4ce9e2c41b65ce3c108765dcd934e0f2a12f6c9640cb2ae547997b26a66da1d515ea7bfeb9cc529a57fbd41f51d61068ca7b9f551119e1403ff0cf1b5684e661

  • SSDEEP

    3072:AvNYkHFE9jZOjT4LD8KbgVtn8Mo8G1gVziHzZbIK1YKB/pCAcNqXhwBV3yxSQigS:srE9Z/5bTgVziHzZnSKrCbYMJZbe8tq

Malware Config

Extracted

Family

xworm

Version

5.0

C2

217.136.29.82:50007

Attributes
  • install_file

    Mason.exe

aes.plain

Signatures

  • Detect Xworm Payload 2 IoCs
  • Modifies security service 2 TTPs 2 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Xworm family
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Drops file in System32 directory 18 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 41 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:\Windows\system32\winlogon.exe
    winlogon.exe
    1⤵
      PID:428
    • C:\Windows\system32\services.exe
      C:\Windows\system32\services.exe
      1⤵
        PID:472
        • C:\Windows\system32\svchost.exe
          C:\Windows\system32\svchost.exe -k DcomLaunch
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:596
          • C:\Windows\system32\DllHost.exe
            C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
            3⤵
              PID:1664
            • C:\Windows\system32\wbem\wmiprvse.exe
              C:\Windows\system32\wbem\wmiprvse.exe -Embedding
              3⤵
                PID:1540
            • C:\Windows\system32\svchost.exe
              C:\Windows\system32\svchost.exe -k RPCSS
              2⤵
                PID:672
              • C:\Windows\System32\svchost.exe
                C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
                2⤵
                • Modifies security service
                PID:756
              • C:\Windows\System32\svchost.exe
                C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted
                2⤵
                  PID:812
                  • C:\Windows\system32\Dwm.exe
                    "C:\Windows\system32\Dwm.exe"
                    3⤵
                      PID:1160
                  • C:\Windows\system32\svchost.exe
                    C:\Windows\system32\svchost.exe -k netsvcs
                    2⤵
                    • Drops file in System32 directory
                    • Suspicious use of AdjustPrivilegeToken
                    • Suspicious use of WriteProcessMemory
                    PID:840
                    • C:\Windows\system32\wbem\WMIADAP.EXE
                      wmiadap.exe /F /T /R
                      3⤵
                      • Drops file in System32 directory
                      • Drops file in Windows directory
                      PID:2460
                  • C:\Windows\system32\svchost.exe
                    C:\Windows\system32\svchost.exe -k LocalService
                    2⤵
                      PID:964
                    • C:\Windows\system32\svchost.exe
                      C:\Windows\system32\svchost.exe -k NetworkService
                      2⤵
                        PID:108
                      • C:\Windows\System32\spoolsv.exe
                        C:\Windows\System32\spoolsv.exe
                        2⤵
                          PID:344
                        • C:\Windows\system32\svchost.exe
                          C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
                          2⤵
                            PID:1064
                          • C:\Windows\system32\taskhost.exe
                            "taskhost.exe"
                            2⤵
                              PID:1108
                            • C:\Windows\system32\svchost.exe
                              C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
                              2⤵
                                PID:1476
                              • C:\Windows\system32\sppsvc.exe
                                C:\Windows\system32\sppsvc.exe
                                2⤵
                                  PID:2860
                              • C:\Windows\system32\lsass.exe
                                C:\Windows\system32\lsass.exe
                                1⤵
                                  PID:488
                                • C:\Windows\system32\lsm.exe
                                  C:\Windows\system32\lsm.exe
                                  1⤵
                                    PID:496
                                  • C:\Windows\Explorer.EXE
                                    C:\Windows\Explorer.EXE
                                    1⤵
                                      PID:1204
                                      • C:\Users\Admin\AppData\Local\Temp\MasonRootkit.exe
                                        "C:\Users\Admin\AppData\Local\Temp\MasonRootkit.exe"
                                        2⤵
                                        • Loads dropped DLL
                                        • Suspicious use of AdjustPrivilegeToken
                                        • Suspicious use of WriteProcessMemory
                                        PID:2828
                                        • C:\Users\Admin\AppData\Local\Temp\00m34e2r.dpp.exe
                                          "C:\Users\Admin\AppData\Local\Temp\00m34e2r.dpp.exe"
                                          3⤵
                                          • Executes dropped EXE
                                          • Suspicious behavior: EnumeratesProcesses
                                          • Suspicious use of AdjustPrivilegeToken
                                          • Suspicious use of WriteProcessMemory
                                          PID:1232
                                        • C:\Windows\system32\SCHTASKS.exe
                                          "SCHTASKS.exe" /create /tn "MasonMasonRootkit.exe" /tr "'C:\Users\Admin\AppData\Local\Temp\MasonRootkit.exe'" /sc onlogon /rl HIGHEST
                                          3⤵
                                          • Scheduled Task/Job: Scheduled Task
                                          PID:2884
                                        • C:\Windows\system32\SCHTASKS.exe
                                          "SCHTASKS.exe" /create /tn "MasonMasonRootkit.exe" /tr "'C:\Users\Admin\AppData\Local\Temp\MasonRootkit.exe'" /sc onlogon /rl HIGHEST
                                          3⤵
                                          • Scheduled Task/Job: Scheduled Task
                                          PID:3068
                                    • C:\Windows\system32\conhost.exe
                                      \??\C:\Windows\system32\conhost.exe "1409476095-231524169-1513245897812891193171501768-776620711-639980509704548653"
                                      1⤵
                                        PID:2888

                                      Network

                                      MITRE ATT&CK Enterprise v15

                                      Replay Monitor

                                      Loading Replay Monitor...

                                      Downloads

                                      • C:\Windows\System32\perfc007.dat

                                        Filesize

                                        141KB

                                        MD5

                                        0f3d76321f0a7986b42b25a3aa554f82

                                        SHA1

                                        7036bba62109cc25da5d6a84d22b6edb954987c0

                                        SHA256

                                        dfad62e3372760d303f7337fe290e4cb28e714caadd3c59294b77968d81fe460

                                        SHA512

                                        bb02a3f14d47d233fbda046f61bbf5612ebc6213b156af9c47f56733a03df1bb484d1c3576569eb4499d7b378eb01f4d6e906c36c6f71738482584c2e84b47d0

                                      • C:\Windows\System32\perfc00A.dat

                                        Filesize

                                        154KB

                                        MD5

                                        f0ecfbfa3e3e59fd02197018f7e9cb84

                                        SHA1

                                        961e9367a4ef3a189466c0a0a186faf8958bdbc4

                                        SHA256

                                        cfa293532a1b865b95093437d82bf8b682132aa335957f0c6d95edfbcc372324

                                        SHA512

                                        116e648cb3b591a6a94da5ef11234778924a2ff9e0b3d7f6f00310d8a58914d12f5ee1b63c2f88701bb00538ad0e42ae2561575333c5a1d63bb8c86863ac6294

                                      • C:\Windows\System32\perfc00C.dat

                                        Filesize

                                        141KB

                                        MD5

                                        831dbe568992299e589143ee8898e131

                                        SHA1

                                        737726173aab8b76fe1f98104d72bb91abd273bf

                                        SHA256

                                        4f22ef1625fb2a2370779d0992f80b8e5e5da8dc727aa99ade152044d28e9405

                                        SHA512

                                        39015d29d593c9df59cdafbff95a6ddc000a5dbf767665b65f8ec65751e70315918c93d3583b922d32e9b6261b8c07023da660098ca79c5420b782c150b5c139

                                      • C:\Windows\System32\perfc010.dat

                                        Filesize

                                        138KB

                                        MD5

                                        cf82e7354e591c1408eb2cc0e29dd274

                                        SHA1

                                        7e91bd50c3e6b64b81e2b5c1ce723f52e34748e9

                                        SHA256

                                        59b5e6fbbe68f47db14a3c045b0ac1abb026c626ca4bee708fbd3940e6d2e06d

                                        SHA512

                                        98bd4809c1c418be4100096bc9df328d2ad435c5615c082fa2bfa424935203107015862cd9c1737800b7f7bd020fea4538c325707927c1557bc3efebffb27620

                                      • C:\Windows\System32\perfc011.dat

                                        Filesize

                                        114KB

                                        MD5

                                        1f998386566e5f9b7f11cc79254d1820

                                        SHA1

                                        e1da5fe1f305099b94de565d06bc6f36c6794481

                                        SHA256

                                        1665d97fb8786b94745295feb616a30c27af84e8a5e1d25cd1bcaf70723040ea

                                        SHA512

                                        a7c9702dd5833f4d6d27ce293efb9507948a3b05db350fc9909af6a48bd649c7578f856b4d64d87df451d0efbe202c62da7fffcac03b3fe72c7caaea553de75f

                                      • C:\Windows\System32\perfh007.dat

                                        Filesize

                                        668KB

                                        MD5

                                        5026297c7c445e7f6f705906a6f57c02

                                        SHA1

                                        4ec3b66d44b0d44ec139bd1475afd100748f9e91

                                        SHA256

                                        506d3bec72805973df3b2e11aba4d074aeb4b26b7335536e79ea1145108817cc

                                        SHA512

                                        5be8e51ecacda465b905df3e38ac114240d8fa6bae5bb17e8e53a87630454b57514ca0abbd8afefd798d450cd4ee89caf4391eeb837ced384260c188482fb48d

                                      • C:\Windows\System32\perfh009.dat

                                        Filesize

                                        646KB

                                        MD5

                                        aecab86cc5c705d7a036cba758c1d7b0

                                        SHA1

                                        e88cf81fd282d91c7fc0efae13c13c55f4857b5e

                                        SHA256

                                        9bab92e274fcc0af88a7fdd143c9045b9d3a13cac2c00b63f00b320128dcc066

                                        SHA512

                                        e0aa8da41373fc64d0e3dc86c9e92a9dd5232f6bcae42dfe6f79012d7e780de85511a9ec6941cb39476632972573a18063d3ecd8b059b1d008d34f585d9edbe8

                                      • C:\Windows\System32\perfh00A.dat

                                        Filesize

                                        727KB

                                        MD5

                                        7d0bac4e796872daa3f6dc82c57f4ca8

                                        SHA1

                                        b4f6bbe08fa8cd0784a94ac442ff937a3d3eea0a

                                        SHA256

                                        ce2ef9fc248965f1408d4b7a1e6db67494ba07a7bbdfa810418b30be66ad5879

                                        SHA512

                                        145a0e8543e0d79fe1a5ce268d710c807834a05da1e948f84d6a1818171cd4ef077ea44ba1fe439b07b095721e0109cbf7e4cfd7b57519ee44d9fd9fe1169a3e

                                      • C:\Windows\System32\perfh00C.dat

                                        Filesize

                                        727KB

                                        MD5

                                        5f684ce126de17a7d4433ed2494c5ca9

                                        SHA1

                                        ce1a30a477daa1bac2ec358ce58731429eafe911

                                        SHA256

                                        2e2ba0c47e71991d646ec380cde47f44318d695e6f3f56ec095955a129af1c2c

                                        SHA512

                                        4d0c2669b5002da14d44c21dc2f521fb37b6b41b61bca7b2a9af7c03f616dda9ca825f79a81d3401af626a90017654f9221a6ccc83010ff73de71967fc2f3f5b

                                      • C:\Windows\System32\perfh010.dat

                                        Filesize

                                        722KB

                                        MD5

                                        4623482c106cf6cc1bac198f31787b65

                                        SHA1

                                        5abb0decf7b42ef5daf7db012a742311932f6dad

                                        SHA256

                                        eceda45aedbf6454b79f010c891bead3844d43189972f6beeb5ccddb13cc0349

                                        SHA512

                                        afecefcec652856dd8b4275f11d75a68a582337b682309c4b61fd26ed7038b92e6b9aa72c1bfc350ce2caf5e357098b54eb1e448a4392960f9f82e01c447669f

                                      • C:\Windows\System32\perfh011.dat

                                        Filesize

                                        406KB

                                        MD5

                                        54c674d19c0ff72816402f66f6c3d37c

                                        SHA1

                                        2dcc0269545a213648d59dc84916d9ec2d62a138

                                        SHA256

                                        646d4ea2f0670691aa5b998c26626ede7623886ed3ac9bc9679018f85e584bb5

                                        SHA512

                                        4d451e9bef2c451cb9e86c7f4d705be65787c88df5281da94012bfbe5af496718ec3e48099ec3dff1d06fee7133293f10d649866fe59daa7951aebe2e5e67c1f

                                      • C:\Windows\System32\wbem\Performance\WmiApRpl.h

                                        Filesize

                                        3KB

                                        MD5

                                        b133a676d139032a27de3d9619e70091

                                        SHA1

                                        1248aa89938a13640252a79113930ede2f26f1fa

                                        SHA256

                                        ae2b6236d3eeb4822835714ae9444e5dcd21bc60f7a909f2962c43bc743c7b15

                                        SHA512

                                        c6b99e13d854ce7a6874497473614ee4bd81c490802783db1349ab851cd80d1dc06df8c1f6e434aba873a5bbf6125cc64104709064e19a9dc1c66dcde3f898f5

                                      • C:\Windows\System32\wbem\Performance\WmiApRpl.ini

                                        Filesize

                                        27KB

                                        MD5

                                        46d08e3a55f007c523ac64dce6dcf478

                                        SHA1

                                        62edf88697e98d43f32090a2197bead7e7244245

                                        SHA256

                                        5b15b1fc32713447c3fbc952a0fb02f1fd78c6f9ac69087bdb240625b0282614

                                        SHA512

                                        b1f42e70c0ba866a9ed34eb531dbcbae1a659d7349c1e1a14b18b9e23d8cbd302d8509c6d3a28bc7509dd92e83bcb400201fb5d5a70f613421d81fe649d02e42

                                      • \Users\Admin\AppData\Local\Temp\00m34e2r.dpp.exe

                                        Filesize

                                        161KB

                                        MD5

                                        94f1ab3a068f83b32639579ec9c5d025

                                        SHA1

                                        38f3d5bc5de46feb8de093d11329766b8e2054ae

                                        SHA256

                                        879cc20b41635709bb304e315aaa5ca4708b480a1bfc2f4935fcf2215188efb0

                                        SHA512

                                        44d5236a804d63302b21ca25ebc148a64605508d03c990a244c44ceb8630849da0510b7b2d0bee72e01ca6681e2d86d7e6aee8847674a26f0028d149b9abee0c

                                      • memory/108-71-0x0000000000CC0000-0x0000000000CEB000-memory.dmp

                                        Filesize

                                        172KB

                                      • memory/108-73-0x0000000037230000-0x0000000037240000-memory.dmp

                                        Filesize

                                        64KB

                                      • memory/108-72-0x000007FEBDFA0000-0x000007FEBDFB0000-memory.dmp

                                        Filesize

                                        64KB

                                      • memory/344-78-0x000007FEBDFA0000-0x000007FEBDFB0000-memory.dmp

                                        Filesize

                                        64KB

                                      • memory/344-76-0x00000000002B0000-0x00000000002DB000-memory.dmp

                                        Filesize

                                        172KB

                                      • memory/428-17-0x0000000000440000-0x000000000046B000-memory.dmp

                                        Filesize

                                        172KB

                                      • memory/428-75-0x0000000000440000-0x000000000046B000-memory.dmp

                                        Filesize

                                        172KB

                                      • memory/428-77-0x0000000077241000-0x0000000077242000-memory.dmp

                                        Filesize

                                        4KB

                                      • memory/428-81-0x0000000037230000-0x0000000037240000-memory.dmp

                                        Filesize

                                        64KB

                                      • memory/428-14-0x0000000000270000-0x0000000000295000-memory.dmp

                                        Filesize

                                        148KB

                                      • memory/428-18-0x000007FEBDFA0000-0x000007FEBDFB0000-memory.dmp

                                        Filesize

                                        64KB

                                      • memory/472-86-0x0000000000130000-0x000000000015B000-memory.dmp

                                        Filesize

                                        172KB

                                      • memory/472-179-0x0000000000130000-0x000000000015B000-memory.dmp

                                        Filesize

                                        172KB

                                      • memory/472-23-0x0000000000130000-0x000000000015B000-memory.dmp

                                        Filesize

                                        172KB

                                      • memory/472-83-0x0000000000100000-0x0000000000125000-memory.dmp

                                        Filesize

                                        148KB

                                      • memory/472-25-0x0000000037230000-0x0000000037240000-memory.dmp

                                        Filesize

                                        64KB

                                      • memory/472-24-0x000007FEBDFA0000-0x000007FEBDFB0000-memory.dmp

                                        Filesize

                                        64KB

                                      • memory/596-56-0x0000000037230000-0x0000000037240000-memory.dmp

                                        Filesize

                                        64KB

                                      • memory/596-55-0x000007FEBDFA0000-0x000007FEBDFB0000-memory.dmp

                                        Filesize

                                        64KB

                                      • memory/596-98-0x00000000003F0000-0x000000000041B000-memory.dmp

                                        Filesize

                                        172KB

                                      • memory/596-180-0x00000000003F0000-0x000000000041B000-memory.dmp

                                        Filesize

                                        172KB

                                      • memory/596-54-0x00000000003F0000-0x000000000041B000-memory.dmp

                                        Filesize

                                        172KB

                                      • memory/756-60-0x0000000037230000-0x0000000037240000-memory.dmp

                                        Filesize

                                        64KB

                                      • memory/756-58-0x0000000000C00000-0x0000000000C2B000-memory.dmp

                                        Filesize

                                        172KB

                                      • memory/756-59-0x000007FEBDFA0000-0x000007FEBDFB0000-memory.dmp

                                        Filesize

                                        64KB

                                      • memory/756-111-0x0000000000C00000-0x0000000000C2B000-memory.dmp

                                        Filesize

                                        172KB

                                      • memory/756-181-0x0000000000C00000-0x0000000000C2B000-memory.dmp

                                        Filesize

                                        172KB

                                      • memory/840-64-0x0000000037230000-0x0000000037240000-memory.dmp

                                        Filesize

                                        64KB

                                      • memory/840-182-0x0000000000C80000-0x0000000000CAB000-memory.dmp

                                        Filesize

                                        172KB

                                      • memory/840-62-0x0000000000C80000-0x0000000000CAB000-memory.dmp

                                        Filesize

                                        172KB

                                      • memory/840-63-0x000007FEBDFA0000-0x000007FEBDFB0000-memory.dmp

                                        Filesize

                                        64KB

                                      • memory/840-120-0x0000000000C80000-0x0000000000CAB000-memory.dmp

                                        Filesize

                                        172KB

                                      • memory/964-68-0x000007FEBDFA0000-0x000007FEBDFB0000-memory.dmp

                                        Filesize

                                        64KB

                                      • memory/964-67-0x0000000000B90000-0x0000000000BBB000-memory.dmp

                                        Filesize

                                        172KB

                                      • memory/964-126-0x0000000000B90000-0x0000000000BBB000-memory.dmp

                                        Filesize

                                        172KB

                                      • memory/964-183-0x0000000000B90000-0x0000000000BBB000-memory.dmp

                                        Filesize

                                        172KB

                                      • memory/964-69-0x0000000037230000-0x0000000037240000-memory.dmp

                                        Filesize

                                        64KB

                                      • memory/1232-66-0x00000000771F0000-0x0000000077399000-memory.dmp

                                        Filesize

                                        1.7MB

                                      • memory/1232-178-0x00000000771F0000-0x0000000077399000-memory.dmp

                                        Filesize

                                        1.7MB

                                      • memory/1232-13-0x00000000771F1000-0x00000000772F2000-memory.dmp

                                        Filesize

                                        1.0MB

                                      • memory/1232-12-0x00000000770D0000-0x00000000771EF000-memory.dmp

                                        Filesize

                                        1.1MB

                                      • memory/1232-11-0x00000000771F0000-0x0000000077399000-memory.dmp

                                        Filesize

                                        1.7MB

                                      • memory/2828-177-0x000007FEF57C3000-0x000007FEF57C4000-memory.dmp

                                        Filesize

                                        4KB

                                      • memory/2828-176-0x00000000020E0000-0x00000000020EE000-memory.dmp

                                        Filesize

                                        56KB

                                      • memory/2828-185-0x000000001B4E0000-0x000000001B560000-memory.dmp

                                        Filesize

                                        512KB

                                      • memory/2828-184-0x000000001B4E0000-0x000000001B560000-memory.dmp

                                        Filesize

                                        512KB

                                      • memory/2828-0-0x000007FEF57C3000-0x000007FEF57C4000-memory.dmp

                                        Filesize

                                        4KB

                                      • memory/2828-2-0x00000000003D0000-0x00000000003FC000-memory.dmp

                                        Filesize

                                        176KB

                                      • memory/2828-1-0x0000000000960000-0x00000000009A0000-memory.dmp

                                        Filesize

                                        256KB