Analysis

  • max time kernel
    59s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    02/10/2026, 06:20

General

  • Target
    database.msi
  • Size 28.8MB
  • Sample261002-g36yaass6p
  • SHA256 becef815900330a003675673d1b0bdc907d8c2ab3d6779079a3ad246ad6125c2
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: RuRAT

    RuRAT is a remote admin tool sold as legitimate software but regularly abused in malicious phishing campaigns.

  • Loads dropped DLL 1 IoCs
  • Badlisted process makes network request 3 IoCs

    Network request originating from process or tool commonly abused by malware.

  • Enumerates connected drives 3 TTPs 47 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Windows directory 3 IoCs
  • Embeds OpenSSL 1 IoCs

    Embeds OpenSSL, may be used to circumvent TLS interception.

  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\database.msi
    1⤵
    • Badlisted process makes network request
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:4016
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3968
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 924C860045A12DD5A1B6760C12AF65A2 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      PID:2472
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:2716
      • C:\Program Files (x86)\Remote Utilities - Host\rfusclient.exe
        "C:\Program Files (x86)\Remote Utilities - Host\rfusclient.exe" -msi_copy "C:\Users\Admin\AppData\Local\Temp\database.msi"
        2⤵
          PID:4660
        • C:\Program Files (x86)\Remote Utilities - Host\rutserv.exe
          "C:\Program Files (x86)\Remote Utilities - Host\rutserv.exe" -config -instalrt
          2⤵
            PID:2856
          • C:\Program Files (x86)\Remote Utilities - Host\rutserv.exe
            "C:\Program Files (x86)\Remote Utilities - Host\rutserv.exe" /silentinstall
            2⤵
              PID:1632
            • C:\Program Files (x86)\Remote Utilities - Host\rutserv.exe
              "C:\Program Files (x86)\Remote Utilities - Host\rutserv.exe" -firewall
              2⤵
                PID:3132
              • C:\Program Files (x86)\Remote Utilities - Host\rutserv.exe
                "C:\Program Files (x86)\Remote Utilities - Host\rutserv.exe" /printerinstall
                2⤵
                  PID:4220
                  • C:\Program Files (x86)\Remote Utilities - Host\Printer\common\srvinst.exe
                    "C:\Program Files (x86)\Remote Utilities - Host\Printer\common\srvinst.exe" uninstall
                    3⤵
                      PID:1424
                    • C:\Program Files (x86)\Remote Utilities - Host\Printer\x64\setupdrv.exe
                      "C:\Program Files (x86)\Remote Utilities - Host\Printer\x64\setupdrv.exe" uninstall
                      3⤵
                        PID:3548
                      • C:\Program Files (x86)\Remote Utilities - Host\Printer\x64\setupdrv.exe
                        "C:\Program Files (x86)\Remote Utilities - Host\Printer\x64\setupdrv.exe" install
                        3⤵
                          PID:3212
                        • C:\Program Files (x86)\Remote Utilities - Host\Printer\common\srvinst.exe
                          "C:\Program Files (x86)\Remote Utilities - Host\Printer\common\srvinst.exe" install
                          3⤵
                            PID:3160
                        • C:\Program Files (x86)\Remote Utilities - Host\rutserv.exe
                          "C:\Program Files (x86)\Remote Utilities - Host\rutserv.exe" /start
                          2⤵
                            PID:4452
                          • C:\Program Files (x86)\Remote Utilities - Host\rutserv.exe
                            "C:\Program Files (x86)\Remote Utilities - Host\rutserv.exe" /CONFIG /SETSECURITY
                            2⤵
                              PID:3092
                          • C:\Windows\system32\vssvc.exe
                            C:\Windows\system32\vssvc.exe
                            1⤵
                            • Checks SCSI registry key(s)
                            PID:4308
                          • C:\Program Files (x86)\Remote Utilities - Host\rutserv.exe
                            "C:\Program Files (x86)\Remote Utilities - Host\rutserv.exe" -service
                            1⤵
                              PID:1996
                            • C:\Windows\System32\spoolsv.exe
                              C:\Windows\System32\spoolsv.exe
                              1⤵
                                PID:1432
                              • C:\Windows\System32\spoolsv.exe
                                C:\Windows\System32\spoolsv.exe
                                1⤵
                                  PID:3672
                                • C:\Program Files (x86)\Common Files\Two Pilots\VPDAgent.exe
                                  "C:\Program Files (x86)\Common Files\Two Pilots\VPDAgent.exe"
                                  1⤵
                                    PID:1852
                                  • C:\Program Files (x86)\Remote Utilities - Host\rutserv.exe
                                    "C:\Program Files (x86)\Remote Utilities - Host\rutserv.exe" -service
                                    1⤵
                                      PID:4968
                                      • C:\Program Files (x86)\Remote Utilities - Host\rfusclient.exe
                                        "C:\Program Files (x86)\Remote Utilities - Host\rfusclient.exe"
                                        2⤵
                                          PID:4636
                                          • C:\Program Files (x86)\Remote Utilities - Host\rfusclient.exe
                                            "C:\Program Files (x86)\Remote Utilities - Host\rfusclient.exe" /tray
                                            3⤵
                                              PID:2500
                                          • C:\Program Files (x86)\Remote Utilities - Host\rfusclient.exe
                                            "C:\Program Files (x86)\Remote Utilities - Host\rfusclient.exe" /tray -instalrt
                                            2⤵
                                              PID:3152

                                          Network

                                                MITRE ATT&CK Enterprise v16

                                                Replay Monitor

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                                                Downloads

                                                e59458c.rbs

                                                • Path C:\Config.Msi\e59458c.rbs
                                                • Size 28KB
                                                • SHA256 f02eee2fa03a8ff7369840322c836995212ec9c79e7840a7b3b2598026f28c68
                                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                                srvinst.exe

                                                • Path C:\Program Files (x86)\Remote Utilities - Host\Printer\common\srvinst.exe
                                                • Size 55KB
                                                • SHA256 c9d87fe1a0df3c60117c1dd5cdbe949236ea3b3bb893ce62495cd0cde0627f5d
                                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                                msvcp120.dll

                                                • Path C:\Program Files (x86)\Remote Utilities - Host\Printer\x64\msvcp120.dll
                                                • Size 640KB
                                                • SHA256 9ef6552edb9aafebd6755be99620baa6458a05bdeebcc39005d853c8fa26aa25
                                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                                msvcr120.dll

                                                • Path C:\Program Files (x86)\Remote Utilities - Host\Printer\x64\msvcr120.dll
                                                • Size 936KB
                                                • SHA256 b2bbb16c35622ff8e788d144b916a5b6fd4df360e11bfa026ced8dd22340a69d
                                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                                rupdpm.dll

                                                • Path C:\Program Files (x86)\Remote Utilities - Host\Printer\x64\rupdpm.dll
                                                • Size 38KB
                                                • SHA256 fc7a6daa09e3545c24039b44f481c8517c50fe1186fa3cb2b14c8f67d1c1b473
                                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                                setupdrv.exe

                                                • Path C:\Program Files (x86)\Remote Utilities - Host\Printer\x64\setupdrv.exe
                                                • Size 103KB
                                                • SHA256 bfa7f6e39561796428ef22dfb0a16bd095089836d1c44b7d6aa3c68dfa1ed0d3
                                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                                libasset32.dll

                                                • Path C:\Program Files (x86)\Remote Utilities - Host\libasset32.dll
                                                • Size 9.4MB
                                                • SHA256 299b3f5e49d3303e0a4793fee52a1165c340a560729115f1a4d421d6f0416fa5
                                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                                rfusclient.exe

                                                • Path C:\Program Files (x86)\Remote Utilities - Host\rfusclient.exe
                                                • Size 15.6MB
                                                • SHA256 7906a81b1dec372b4c232306678fda0cbc46db41e3db0c06b858d54d60cd7ab6
                                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                                rutserv.exe

                                                • Path C:\Program Files (x86)\Remote Utilities - Host\rutserv.exe
                                                • Size 21.4MB
                                                • SHA256 d8e6765d0dbfbdf436f88c7cac85476b41edd6ded12f24bb34fe3932737ba613
                                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                                9CB4373A4252DE8D2212929836304EC5_6C354C532D063DF5607A63BA827F5164

                                                • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\9CB4373A4252DE8D2212929836304EC5_6C354C532D063DF5607A63BA827F5164
                                                • Size 1KB
                                                • SHA256 1c9c5f69acdcab50541ff79178bdaf483b984bee8daec75d18dadc10c3157837
                                                • MD5 SHA1 SHA512 TLSH

                                                A1D627669EFC8CD4F21BCF387D97F9B5_65802118A1B42BB7E866C4DD04A00F68

                                                • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\A1D627669EFC8CD4F21BCF387D97F9B5_65802118A1B42BB7E866C4DD04A00F68
                                                • Size 1KB
                                                • SHA256 7405f439191eb3b0428b9029d5074c59fb4c8ae08439aa4493cdc1e5fa27f520
                                                • MD5 SHA1 SHA512 TLSH

                                                9CB4373A4252DE8D2212929836304EC5_6C354C532D063DF5607A63BA827F5164

                                                • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\9CB4373A4252DE8D2212929836304EC5_6C354C532D063DF5607A63BA827F5164
                                                • Size 532B
                                                • SHA256 d84b3457e7c4cd8660c668a08f3eab0119677490435a5390efb7e7c8f02b102f
                                                • MD5 SHA1 SHA512 TLSH

                                                A1D627669EFC8CD4F21BCF387D97F9B5_65802118A1B42BB7E866C4DD04A00F68

                                                • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\A1D627669EFC8CD4F21BCF387D97F9B5_65802118A1B42BB7E866C4DD04A00F68
                                                • Size 540B
                                                • SHA256 7339d1be74c3c786df7a661e15c9a8511e54a8f4496e7f9532d458988d35e849
                                                • MD5 SHA1 SHA512 TLSH

                                                MSI66C4.tmp

                                                • Path C:\Users\Admin\AppData\Local\Temp\MSI66C4.tmp
                                                • Size 649KB
                                                • SHA256 085eacfc60a533c33950ac55f17a3afa5b7baf6e5ba73ec112adf5ed88177175
                                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                                e59458d.msi

                                                • Path C:\Windows\Installer\e59458d.msi
                                                • Size 28.8MB
                                                • SHA256 becef815900330a003675673d1b0bdc907d8c2ab3d6779079a3ad246ad6125c2
                                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                                rupd.gpd

                                                • Path C:\Windows\System32\spool\drivers\x64\3\New\rupd.gpd
                                                • Size 17KB
                                                • SHA256 ee1e4d9869188cc3fa518c445ecf071845e5bd8be56767a9f7f7dd3ace294ba5
                                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                                rupd.ini

                                                • Path C:\Windows\System32\spool\drivers\x64\3\New\rupd.ini
                                                • Size 41B
                                                • SHA256 7ba0ace1e899c38cb5e8bf303868c0ab4b9890d536009cf21c958b114888dfa3
                                                • MD5 SHA1 SHA512

                                                unidrv_rupd.hlp

                                                • Path C:\Windows\System32\spool\drivers\x64\3\New\unidrv_rupd.hlp
                                                • Size 20KB
                                                • SHA256 0c02b226be4e7397f8c98799e58b0a512515e462ccdaac04edc10e3e1091c011
                                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                                rupdui.dll

                                                • Path C:\Windows\System32\spool\drivers\x64\3\rupdui.dll
                                                • Size 203KB
                                                • SHA256 1dec445cb8060808ff92de3c18c88b57a120bdc2299c08005b8571cf184830fd
                                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                                unidrv_rupd.dll

                                                • Path C:\Windows\System32\spool\drivers\x64\3\unidrv_rupd.dll
                                                • Size 479KB
                                                • SHA256 3e85b67ce36ae99a2ffbe3d3c1f37c8ad28aa4dbcc68b643e278672cfc609447
                                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                                unidrvui_rupd.dll

                                                • Path C:\Windows\System32\spool\drivers\x64\3\unidrvui_rupd.dll
                                                • Size 875KB
                                                • SHA256 ce231cc8d87605a1139570d9e91ec92bc713feb587d93df096f37ddebd5667dd
                                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                                rupd.lng

                                                • Path C:\Windows\system32\spool\DRIVERS\x64\rupd.lng
                                                • Size 96KB
                                                • SHA256 c8df350f95ffeeed30060092dc8666eadce040a4ddcb98e7a9293f87d19387a8
                                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                                stdnames_vpd.gpd

                                                • Path C:\Windows\system32\spool\DRIVERS\x64\stdnames_vpd.gpd
                                                • Size 14KB
                                                • SHA256 2835a439c6ae22074bc3372491cb71e6c2b72d0c87ae3eee6065c6caadf1e5c8
                                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                                unires_vpd.dll

                                                • Path C:\Windows\system32\spool\DRIVERS\x64\unires_vpd.dll
                                                • Size 756KB
                                                • SHA256 b00f8da36932036a6008b3ca92691ad4b347f0df3659dfe1c9d2d09258dc39db
                                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                                metadata-2

                                                • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
                                                • Size 24.1MB
                                                • SHA256 1fb6f662361d800bde012cd19b1ee7dfa5c50d394ffb33e8b6480d2f3240a7e3
                                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                                {33102f9d-dddc-4b4d-a676-3fc92d1943e9}_OnDiskSnapshotProp

                                                • Path \??\Volume{c4d211c3-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{33102f9d-dddc-4b4d-a676-3fc92d1943e9}_OnDiskSnapshotProp
                                                • Size 6KB
                                                • SHA256 57ef613bd8d9b0b8723c93bf6a46669658d1799c08ac212b9682a6d3f545e568
                                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                                memory/1632-122-0x0000000000FE0000-0x000000000261C000-memory.dmp

                                                memory/1632-123-0x000000006D280000-0x000000006D9B6000-memory.dmp

                                                memory/1996-132-0x000000006D280000-0x000000006D9B6000-memory.dmp

                                                memory/1996-131-0x0000000000FE0000-0x000000000261C000-memory.dmp

                                                memory/2500-347-0x000000006D280000-0x000000006D9B6000-memory.dmp

                                                memory/2500-346-0x0000000000E10000-0x0000000001E4E000-memory.dmp

                                                memory/2856-114-0x000000006D280000-0x000000006D9B6000-memory.dmp

                                                memory/2856-113-0x0000000000FE0000-0x000000000261C000-memory.dmp

                                                memory/3092-338-0x000000006D280000-0x000000006D9B6000-memory.dmp

                                                memory/3092-337-0x0000000000FE0000-0x000000000261C000-memory.dmp

                                                memory/3132-128-0x000000006D280000-0x000000006D9B6000-memory.dmp

                                                memory/3132-127-0x0000000000FE0000-0x000000000261C000-memory.dmp

                                                memory/3152-375-0x0000000000E10000-0x0000000001E4E000-memory.dmp

                                                memory/3152-355-0x000000006D280000-0x000000006D9B6000-memory.dmp

                                                memory/3152-368-0x0000000000E10000-0x0000000001E4E000-memory.dmp

                                                memory/3152-361-0x0000000000E10000-0x0000000001E4E000-memory.dmp

                                                memory/3152-354-0x0000000000E10000-0x0000000001E4E000-memory.dmp

                                                memory/4220-318-0x000000006D280000-0x000000006D9B6000-memory.dmp

                                                memory/4220-317-0x0000000000FE0000-0x000000000261C000-memory.dmp

                                                memory/4220-136-0x0000000000FE0000-0x000000000261C000-memory.dmp

                                                memory/4220-137-0x000000006D280000-0x000000006D9B6000-memory.dmp

                                                memory/4452-322-0x000000006D280000-0x000000006D9B6000-memory.dmp

                                                memory/4452-321-0x0000000000FE0000-0x000000000261C000-memory.dmp

                                                memory/4636-352-0x0000000000E10000-0x0000000001E4E000-memory.dmp

                                                memory/4636-353-0x000000006D280000-0x000000006D9B6000-memory.dmp

                                                memory/4660-107-0x000000006D280000-0x000000006D9B6000-memory.dmp

                                                memory/4660-106-0x0000000000E10000-0x0000000001E4E000-memory.dmp

                                                memory/4968-351-0x000000006D280000-0x000000006D9B6000-memory.dmp

                                                memory/4968-350-0x0000000000FE0000-0x000000000261C000-memory.dmp

                                                memory/4968-357-0x0000000000FE0000-0x000000000261C000-memory.dmp

                                                memory/4968-364-0x0000000000FE0000-0x000000000261C000-memory.dmp

                                                memory/4968-371-0x0000000000FE0000-0x000000000261C000-memory.dmp