Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    29/10/2026, 20:02

General

  • Target
    RuntimeBroker.exe
  • Size 31.6MB
  • Sample261029-yr51aaev6y
  • SHA256 3a62ed78497b0ece5c72677afbfbcb7b19458f56367928e26cceabce595fe66f
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Executes a file named after a Windows system binary 1 TTPs 8 IoCs

    The file runs from a user directory while carrying the name of an executable that normally only exists in System32.

  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 64 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Contacts third-party web service commonly abused for C2 1 TTPs 3 IoCs

    Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

  • Looks up external IP address via web service 1 TTPs 1 IoCs

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

  • Uses WMI to collect hardware manufacturer information 2 TTPs 2 IoCs

    Uses WMI to read the system manufacturer, model, baseboard or display adapter, which is often used to detect virtual machines and evade sandboxes.

  • Executes a VBScript file via the Windows Script Host. 1 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 6 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • Executes a command shell one-liner 1 TTPs 2 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • Reads the TCP/IP host and domain name from the registry 1 TTPs 10 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • System Network Configuration Discovery: Wi-Fi Discovery 1 TTPs 2 IoCs

    Adversaries may search for information about Wi-Fi networks, such as network names and passwords, on compromised systems.

  • Suspicious behavior: EnumeratesProcesses 32 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 21 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\RuntimeBroker.exe
    "C:\Users\Admin\AppData\Local\Temp\RuntimeBroker.exe"
    1⤵
    • Executes a file named after a Windows system binary
    • Suspicious use of WriteProcessMemory
    PID:8
    • C:\Users\Admin\AppData\Local\Temp\RuntimeBroker.exe
      "C:\Users\Admin\AppData\Local\Temp\RuntimeBroker.exe"
      2⤵
      • Executes a file named after a Windows system binary
      • Loads dropped DLL
      • Reads the TCP/IP host and domain name from the registry
      • Suspicious use of WriteProcessMemory
      PID:2356
      • C:\Windows\SYSTEM32\schtasks.exe
        schtasks /delete /tn WindowsCacheUpdate /f
        3⤵
          PID:5020
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn MicrosoftEdgeUpdateTaskMachineCoreUA /f
          3⤵
            PID:1292
          • C:\Windows\SYSTEM32\schtasks.exe
            schtasks /delete /tn WindowsCacheUpdate /f
            3⤵
              PID:4560
            • C:\Windows\SYSTEM32\schtasks.exe
              schtasks /delete /tn MicrosoftEdgeUpdateTaskMachineCoreUA /f
              3⤵
                PID:6044
              • C:\Users\Admin\AppData\Local\WindowsCache\RuntimeBroker.exe
                C:\Users\Admin\AppData\Local\WindowsCache\RuntimeBroker.exe
                3⤵
                • Executes a file named after a Windows system binary
                • Executes dropped EXE
                • Suspicious use of WriteProcessMemory
                PID:5796
                • C:\Users\Admin\AppData\Local\WindowsCache\RuntimeBroker.exe
                  C:\Users\Admin\AppData\Local\WindowsCache\RuntimeBroker.exe
                  4⤵
                  • Executes a file named after a Windows system binary
                  • Executes dropped EXE
                  • Loads dropped DLL
                  • Adds Run key to start application
                  • Reads the TCP/IP host and domain name from the registry
                  • Suspicious behavior: EnumeratesProcesses
                  • Suspicious use of AdjustPrivilegeToken
                  • Suspicious use of WriteProcessMemory
                  PID:4896
                  • C:\Windows\SYSTEM32\schtasks.exe
                    schtasks /delete /tn WindowsCacheUpdate /f
                    5⤵
                      PID:5540
                    • C:\Windows\SYSTEM32\schtasks.exe
                      schtasks /delete /tn MicrosoftEdgeUpdateTaskMachineCoreUA /f
                      5⤵
                        PID:5388
                      • C:\Windows\system32\cmd.exe
                        C:\Windows\system32\cmd.exe /c "wmic computersystem get manufacturer,model"
                        5⤵
                        • Executes a command shell one-liner
                        • Suspicious use of WriteProcessMemory
                        PID:2084
                        • C:\Windows\System32\Wbem\WMIC.exe
                          wmic computersystem get manufacturer,model
                          6⤵
                          • Uses WMI to collect hardware manufacturer information
                          • Reads the TCP/IP host and domain name from the registry
                          • Suspicious behavior: EnumeratesProcesses
                          • Suspicious use of AdjustPrivilegeToken
                          PID:2560
                      • C:\Windows\SYSTEM32\netsh.exe
                        netsh wlan show profiles
                        5⤵
                        • Event Triggered Execution: Netsh Helper DLL
                        • System Network Configuration Discovery: Wi-Fi Discovery
                        PID:1868
              • C:\Windows\System32\wscript.exe
                "C:\Windows\System32\wscript.exe" //nologo "C:\Users\Admin\AppData\Local\WindowsCache\run.vbs"
                1⤵
                • Executes a file named after a Windows system binary
                • Executes a VBScript file via the Windows Script Host.
                • Suspicious use of WriteProcessMemory
                PID:3388
                • C:\Users\Admin\AppData\Local\WindowsCache\RuntimeBroker.exe
                  "C:\Users\Admin\AppData\Local\WindowsCache\RuntimeBroker.exe"
                  2⤵
                  • Executes a file named after a Windows system binary
                  • Executes dropped EXE
                  • Suspicious use of WriteProcessMemory
                  PID:4812
                  • C:\Users\Admin\AppData\Local\WindowsCache\RuntimeBroker.exe
                    "C:\Users\Admin\AppData\Local\WindowsCache\RuntimeBroker.exe"
                    3⤵
                    • Executes a file named after a Windows system binary
                    • Executes dropped EXE
                    • Adds Run key to start application
                    • Reads the TCP/IP host and domain name from the registry
                    • Suspicious behavior: EnumeratesProcesses
                    • Suspicious use of AdjustPrivilegeToken
                    • Suspicious use of WriteProcessMemory
                    PID:5712
                    • C:\Windows\SYSTEM32\schtasks.exe
                      schtasks /delete /tn WindowsCacheUpdate /f
                      4⤵
                        PID:416
                      • C:\Windows\SYSTEM32\schtasks.exe
                        schtasks /delete /tn MicrosoftEdgeUpdateTaskMachineCoreUA /f
                        4⤵
                          PID:5684
                        • C:\Windows\SYSTEM32\schtasks.exe
                          schtasks /delete /tn WindowsCacheUpdate /f
                          4⤵
                            PID:3624
                          • C:\Windows\SYSTEM32\schtasks.exe
                            schtasks /delete /tn MicrosoftEdgeUpdateTaskMachineCoreUA /f
                            4⤵
                              PID:4364
                            • C:\Windows\system32\cmd.exe
                              C:\Windows\system32\cmd.exe /c "wmic computersystem get manufacturer,model"
                              4⤵
                              • Executes a command shell one-liner
                              • Suspicious use of WriteProcessMemory
                              PID:2772
                              • C:\Windows\System32\Wbem\WMIC.exe
                                wmic computersystem get manufacturer,model
                                5⤵
                                • Uses WMI to collect hardware manufacturer information
                                • Reads the TCP/IP host and domain name from the registry
                                • Suspicious behavior: EnumeratesProcesses
                                • Suspicious use of AdjustPrivilegeToken
                                PID:5260
                            • C:\Windows\SYSTEM32\netsh.exe
                              netsh wlan show profiles
                              4⤵
                              • Event Triggered Execution: Netsh Helper DLL
                              • System Network Configuration Discovery: Wi-Fi Discovery
                              PID:4348

                      Network

                            MITRE ATT&CK Enterprise v16

                            Replay Monitor

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                            Downloads

                            VCRUNTIME140.dll

                            • Path C:\Users\Admin\AppData\Local\Temp\_MEI000000082\VCRUNTIME140.dll
                            • Size 174KB
                            • SHA256 d1f4225df2cd877dbf130d5668a021dce3f94118455ff5ec952061c30afc9ce7
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            VCRUNTIME140_1.dll

                            • Path C:\Users\Admin\AppData\Local\Temp\_MEI000000082\VCRUNTIME140_1.dll
                            • Size 48KB
                            • SHA256 a7146c08f89fe5b04541ab507cdb59ff7b44534d4ba3c668a426c6450a03434e
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            _asyncio.pyd

                            • Path C:\Users\Admin\AppData\Local\Temp\_MEI000000082\_asyncio.pyd
                            • Size 76KB
                            • SHA256 f9594a2a4f45570dbfdf1f3471194ae7b27dc117c54b9af6bc22df9c93830f8b
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            _bz2.pyd

                            • Path C:\Users\Admin\AppData\Local\Temp\_MEI000000082\_bz2.pyd
                            • Size 86KB
                            • SHA256 b938073c85cf6b9fe80556d7899ed1901e5e60b7adea2832442376239fb36b36
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            _ctypes.pyd

                            • Path C:\Users\Admin\AppData\Local\Temp\_MEI000000082\_ctypes.pyd
                            • Size 139KB
                            • SHA256 408cc4e7a22ffa418ca52f5e13fe9268a3c50a2bc9de02b0530b555ef591bc5a
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            _hashlib.pyd

                            • Path C:\Users\Admin\AppData\Local\Temp\_MEI000000082\_hashlib.pyd
                            • Size 67KB
                            • SHA256 5933ef5eda7c0bca0b3874a6e2c5f13b91b8f2cfc29bc46160df3212a1dbee79
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            _lzma.pyd

                            • Path C:\Users\Admin\AppData\Local\Temp\_MEI000000082\_lzma.pyd
                            • Size 157KB
                            • SHA256 d2abf8db7fb0cf6285663b177991691a41b37e215c3d71fd087a98d8ec1bee63
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            _overlapped.pyd

                            • Path C:\Users\Admin\AppData\Local\Temp\_MEI000000082\_overlapped.pyd
                            • Size 56KB
                            • SHA256 1d7028683e6ec50c159139238f90a6c8431ece139a4764900ca11c941ba05d46
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            _queue.pyd

                            • Path C:\Users\Admin\AppData\Local\Temp\_MEI000000082\_queue.pyd
                            • Size 35KB
                            • SHA256 2fd8668f52b34d0e71ae48784bd2e7d35e5d99df6f641edb0fc279235a187c8e
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            _socket.pyd

                            • Path C:\Users\Admin\AppData\Local\Temp\_MEI000000082\_socket.pyd
                            • Size 85KB
                            • SHA256 02265dd0d0287f3ffd287ea5d8e3c918a5a056e8ef2c4529857f5e84ec9e2519
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            _ssl.pyd

                            • Path C:\Users\Admin\AppData\Local\Temp\_MEI000000082\_ssl.pyd
                            • Size 186KB
                            • SHA256 4cfb154c7cc525d57020c0e64f2dd876a78b46cd38419446392478de6b7b13b8
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            _uuid.pyd

                            • Path C:\Users\Admin\AppData\Local\Temp\_MEI000000082\_uuid.pyd
                            • Size 27KB
                            • SHA256 fbfd7fe8583b346ba20b174b2510c0830237f5092bdf9fc26da9d6b25b018385
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            _wmi.pyd

                            • Path C:\Users\Admin\AppData\Local\Temp\_MEI000000082\_wmi.pyd
                            • Size 39KB
                            • SHA256 b6fd41f079da0c0054829855360e88b8b762f5c42bb474c2fa02eae367839ad2
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            _zstd.pyd

                            • Path C:\Users\Admin\AppData\Local\Temp\_MEI000000082\_zstd.pyd
                            • Size 491KB
                            • SHA256 33c6eca99470c3eb9d776b617c550ad41b002a668336f062a9ab7be677a7409a
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            _http_parser.cp314-win_amd64.pyd

                            • Path C:\Users\Admin\AppData\Local\Temp\_MEI000000082\aiohttp\_http_parser.cp314-win_amd64.pyd
                            • Size 301KB
                            • SHA256 89796be8a989f37851f9e025508b8d294a3b4947b8a822615b7d82e513e98986
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            _http_writer.cp314-win_amd64.pyd

                            • Path C:\Users\Admin\AppData\Local\Temp\_MEI000000082\aiohttp\_http_writer.cp314-win_amd64.pyd
                            • Size 43KB
                            • SHA256 eef0db0ea9e2293a3557cdd8170b8708bdd39a4e4af91fec3cc73040c34c6123
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            mask.cp314-win_amd64.pyd

                            • Path C:\Users\Admin\AppData\Local\Temp\_MEI000000082\aiohttp\_websocket\mask.cp314-win_amd64.pyd
                            • Size 34KB
                            • SHA256 03aa540df5b5ab6bd3b1a1b57970e3a977bdc6b8a8df36e926a2d5de5c1a88e5
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            reader_c.cp314-win_amd64.pyd

                            • Path C:\Users\Admin\AppData\Local\Temp\_MEI000000082\aiohttp\_websocket\reader_c.cp314-win_amd64.pyd
                            • Size 151KB
                            • SHA256 e3874f8070fd4d5471136f2de484d17d23319f279d9b9094c38c649d1edf84e2
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            base_library.zip

                            • Path C:\Users\Admin\AppData\Local\Temp\_MEI000000082\base_library.zip
                            • Size 1.3MB
                            • SHA256 c26a4c21cc2337784b7ca8f5dd844743a29db4233be5906b3d1fc003a28a3ba1
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            _frozenlist.cp314-win_amd64.pyd

                            • Path C:\Users\Admin\AppData\Local\Temp\_MEI000000082\frozenlist\_frozenlist.cp314-win_amd64.pyd
                            • Size 68KB
                            • SHA256 054e5d97884e8d833528aa3a98868204a3ec46cabb6a656e72432634d117880a
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            libcrypto-3.dll

                            • Path C:\Users\Admin\AppData\Local\Temp\_MEI000000082\libcrypto-3.dll
                            • Size 6.0MB
                            • SHA256 53c529145339fb042a3dcd3a09c2d7753204f8b4fc79d99e0d31e69a33985958
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            libffi-8.dll

                            • Path C:\Users\Admin\AppData\Local\Temp\_MEI000000082\libffi-8.dll
                            • Size 38KB
                            • SHA256 eff52743773eb550fcc6ce3efc37c85724502233b6b002a35496d828bd7b280a
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            libssl-3.dll

                            • Path C:\Users\Admin\AppData\Local\Temp\_MEI000000082\libssl-3.dll
                            • Size 1.3MB
                            • SHA256 b17a87979862d19241edc4318f967e24c3ec356ed6c2368f561179fab2311001
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            _multidict.cp314-win_amd64.pyd

                            • Path C:\Users\Admin\AppData\Local\Temp\_MEI000000082\multidict\_multidict.cp314-win_amd64.pyd
                            • Size 127KB
                            • SHA256 44a822765642589f1dc905ab58d016d127e0daff0358826b96a3c0da8868b291
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            _helpers_c.cp314-win_amd64.pyd

                            • Path C:\Users\Admin\AppData\Local\Temp\_MEI000000082\propcache\_helpers_c.cp314-win_amd64.pyd
                            • Size 64KB
                            • SHA256 cb2e3b34bafecbe41b058cf858916b092659745e3112dae913a9e390ca3b2827
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            python3.DLL

                            • Path C:\Users\Admin\AppData\Local\Temp\_MEI000000082\python3.DLL
                            • Size 72KB
                            • SHA256 6c45910e7c82617ca6360820de861699cc99f9efee434df290aa4c6e38f39886
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            python314.dll

                            • Path C:\Users\Admin\AppData\Local\Temp\_MEI000000082\python314.dll
                            • Size 6.5MB
                            • SHA256 0f9857ffdfe010fe6b99328d58c2e3c7472ce75f336bf9c2ad9bd5bca3bce700
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            select.pyd

                            • Path C:\Users\Admin\AppData\Local\Temp\_MEI000000082\select.pyd
                            • Size 32KB
                            • SHA256 722328e7fad8048057fc966474ba73966d2ceebaa32e7344cce09640ab4dc9bd
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            Lorem ipsum.txt

                            • Path C:\Users\Admin\AppData\Local\Temp\_MEI000000082\setuptools\_vendor\jaraco\text\Lorem ipsum.txt
                            • Size 1KB
                            • SHA256 37fedcffbf73c4eb9f058f47677cb33203a436ff9390e4d38a8e01c9dad28e0b
                            • MD5 SHA1 SHA512 TLSH

                            ucrtbase.dll

                            • Path C:\Users\Admin\AppData\Local\Temp\_MEI000000082\ucrtbase.dll
                            • Size 1.1MB
                            • SHA256 4a4a407662465c3d1f5d808af3d9fd084baa064bebe62c6c205faec63d308492
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            unicodedata.pyd

                            • Path C:\Users\Admin\AppData\Local\Temp\_MEI000000082\unicodedata.pyd
                            • Size 741KB
                            • SHA256 280b09bd97b598d18c0ed9542dc18ed35fa57a16e84f8e65fd9c6e96516c28d6
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            _quoting_c.cp314-win_amd64.pyd

                            • Path C:\Users\Admin\AppData\Local\Temp\_MEI000000082\yarl\_quoting_c.cp314-win_amd64.pyd
                            • Size 80KB
                            • SHA256 3912a5ed94d6928ea73abf3308dcd40fe67223a037846d10d3a773203d807beb
                            • MD5 SHA1 SHA512 SSDEEP TLSH

                            INSTALLER

                            • Path C:\Users\Admin\AppData\Local\Temp\_MEI000016a42\attrs-26.1.0.dist-info\INSTALLER
                            • Size 4B
                            • SHA256 ceebae7b8927a3227e5303cf5e0f1f7b34bb542ad7250ac03fbcde36ec2f1508
                            • MD5 SHA1 SHA512

                            tokens.txt

                            • Path C:\Users\Admin\AppData\Local\Temp\report_1793304184\tokens.txt
                            • Size 15B
                            • SHA256 76e4b15f80350ccedbd658e1af0ac978a0e02c1ed54904f42dbcaa8a946af20d
                            • MD5 SHA1 SHA512

                            wifi.txt

                            • Path C:\Users\Admin\AppData\Local\Temp\report_1793304205\wifi.txt
                            • Size 10B
                            • SHA256 1bcadb1de11f5c46a0944be5011429694b508671dfed186194de8e7e63d09334
                            • MD5 SHA1 SHA512

                            run.vbs

                            • Path C:\Users\Admin\AppData\Local\WindowsCache\run.vbs
                            • Size 439B
                            • SHA256 5f0f8bbc1eb37c48b89a5b5603510104f1657b49d728499e50209ae994522364
                            • MD5 SHA1 SHA512 TLSH

                            memory/2356-253-0x000001824B410000-0x000001824BB06000-memory.dmp

                            memory/4896-456-0x00000251A7410000-0x00000251A7B06000-memory.dmp

                            memory/4896-471-0x00000251A7410000-0x00000251A7B06000-memory.dmp

                            memory/4896-661-0x00000251A7410000-0x00000251A7B06000-memory.dmp

                            memory/5712-689-0x000002252E700000-0x000002252E988000-memory.dmp