Overview

overview

10

Static

static

1

viewer6.10.msi

windows10-2004-x64

10

viewer6.10.msi

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    126s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    13/10/2026, 22:12

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General

  • Target
    viewer6.10.msi
  • Size 15.2MB
  • Sample261013-141bnscs21
  • SHA256 5474efd6a80a62ea78922e9c199d37d66f1e1273a98adb87fd0d1e720ac6ed03
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
backdoordiscoveryruratpersistenceprivilege_escalationransomwaretrojan

Malware Config

Signatures

  • Family: RuRAT

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

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

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

  • Enumerates connected drives 3 TTPs 46 IoCs

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

  • Drops file in Program Files directory 51 IoCs
  • Drops file in Windows directory 20 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
    persistenceprivilege_escalation
  • Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

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

    discovery
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

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

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

  • Checks processor information in registry 2 TTPs 17 IoCs

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

  • Modifies data under HKEY_USERS 3 IoCs
  • Modifies registry class 24 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • Uses Volume Shadow Copy service COM API

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

    ransomware

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\viewer6.10.msi
    1⤵
    • Badlisted process makes network request
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4956
    • C:\Program Files (x86)\Remote Utilities - Viewer\rutview.exe
      "C:\Program Files (x86)\Remote Utilities - Viewer\rutview.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Reads the TCP/IP host and domain name from the registry
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      PID:5300
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:5100
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 68F1DE6555C6C18B0FEE7CB99DCF3917 C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:4816
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:3320
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      PID:1964

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          e59cf1f.rbs
          • Path C:\Config.Msi\e59cf1f.rbs
          • Size 12KB
          • SHA256 4f9299a4305a56d539cfb44a482ab95353f1565773acf02f91549bd2edd0776b
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          Arabic.lng
          • Path C:\Program Files (x86)\Remote Utilities - Viewer\Arabic.lng
          • Size 174KB
          • SHA256 59ce0d8cba61390f0e21fda56313bff4d1eb5c514ce9a21d88e0c0edb631d62e
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          Chinese Simplified.lng
          • Path C:\Program Files (x86)\Remote Utilities - Viewer\Chinese Simplified.lng
          • Size 131KB
          • SHA256 ec4730ed3a581ea25cb93239c2178edb90ec0e2911b704709177fb315443f0bd
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          Chinese Traditional.lng
          • Path C:\Program Files (x86)\Remote Utilities - Viewer\Chinese Traditional.lng
          • Size 132KB
          • SHA256 70e1738575deabdbfdc6411793f6932031bb55ff80c50078e44a52b07aded5b6
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          Czech.lng
          • Path C:\Program Files (x86)\Remote Utilities - Viewer\Czech.lng
          • Size 185KB
          • SHA256 124b419adeae0e512646f8f944f817973c92de8e7d80c612bf0e8eaa10cdc761
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          Danish.lng
          • Path C:\Program Files (x86)\Remote Utilities - Viewer\Danish.lng
          • Size 182KB
          • SHA256 75872f60c638ce1254f86e9b411fa1d6e3388da3f2192955adb640d8092fed44
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          Dutch.lng
          • Path C:\Program Files (x86)\Remote Utilities - Viewer\Dutch.lng
          • Size 191KB
          • SHA256 77b399bbcbca26069889cf743b89675c01ef3e515f4d8fceee6528738bacc666
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          English.lng
          • Path C:\Program Files (x86)\Remote Utilities - Viewer\English.lng
          • Size 192KB
          • SHA256 53a3fc2111ad481f81d074051cb24eace5157e3d5c2a903403dee525faf2900b
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          libeay32.dll
          • Path C:\Program Files (x86)\Remote Utilities - Viewer\libeay32.dll
          • Size 1.3MB
          • SHA256 23b0ded7bf70d07d04c3ec04f3f7380b693e395bdb9fb62ff1d5b0684b9dd42d
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          rutview.exe
          • Path C:\Program Files (x86)\Remote Utilities - Viewer\rutview.exe
          • Size 22.9MB
          • SHA256 efa97f52e0be9921b0d066cd8aecef42d9c604a5f0334e81b30a3e1b84a57e3c
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          ssleay32.dll
          • Path C:\Program Files (x86)\Remote Utilities - Viewer\ssleay32.dll
          • Size 337KB
          • SHA256 9f2ebc122d4f51f37877b00b3cad3d639936b2046498a6b05a191f9a9525ac67
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          MSI3CF.tmp
          • Path C:\Users\Admin\AppData\Local\Temp\MSI3CF.tmp
          • Size 153KB
          • SHA256 756543551f27e9450dcf0ffdd10cd44af6fd0e8dbca037dee5b575683d5a9492
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          e59cf20.msi
          • Path C:\Windows\Installer\e59cf20.msi
          • Size 15.2MB
          • SHA256 5474efd6a80a62ea78922e9c199d37d66f1e1273a98adb87fd0d1e720ac6ed03
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          metadata-2
          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 26.1MB
          • SHA256 00affcc5b41d34f5206fcafeee4053aed7bf93d55ffd1682d651e5eb82ddea4f
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          {53deafd0-9819-47da-b1f9-7cb11526d477}_OnDiskSnapshotProp
          • Path \??\Volume{e42a0d43-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{53deafd0-9819-47da-b1f9-7cb11526d477}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 b0d5d8aca359c7ce933b045d0a78b0acab3a12220d9b0eb06a8df5ce9fd8acfc
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          memory/5300-107-0x0000000000400000-0x0000000001B74000-memory.dmp
          Download

          memory/5300-111-0x0000000000400000-0x0000000001B74000-memory.dmp
          Download

          memory/5300-115-0x0000000000400000-0x0000000001B74000-memory.dmp
          Download

          memory/5300-116-0x0000000000400000-0x0000000001B74000-memory.dmp
          Download

          memory/5300-117-0x0000000000400000-0x0000000001B74000-memory.dmp
          Download

          memory/5300-120-0x0000000000400000-0x0000000001B74000-memory.dmp
          Download

          memory/5300-121-0x0000000000400000-0x0000000001B74000-memory.dmp
          Download

          memory/5300-122-0x0000000000400000-0x0000000001B74000-memory.dmp
          Download