Analysis

  • max time kernel
    62s
  • max time network
    144s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-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
  • Enumerates connected drives 3 TTPs 47 IoCs

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

  • 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 SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 1 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⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:3260
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2208
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 3C831981F671B02661CE53F1258DDD1A C
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:2232
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:2800
      • 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:1960
        • C:\Program Files (x86)\Remote Utilities - Host\rutserv.exe
          "C:\Program Files (x86)\Remote Utilities - Host\rutserv.exe" -config -instalrt
          2⤵
            PID:5240
          • C:\Program Files (x86)\Remote Utilities - Host\rutserv.exe
            "C:\Program Files (x86)\Remote Utilities - Host\rutserv.exe" /silentinstall
            2⤵
              PID:3816
            • C:\Program Files (x86)\Remote Utilities - Host\rutserv.exe
              "C:\Program Files (x86)\Remote Utilities - Host\rutserv.exe" -firewall
              2⤵
                PID:3220
              • C:\Program Files (x86)\Remote Utilities - Host\rutserv.exe
                "C:\Program Files (x86)\Remote Utilities - Host\rutserv.exe" /CONFIG /SETSECURITY
                2⤵
                  PID:3324
              • C:\Windows\system32\vssvc.exe
                C:\Windows\system32\vssvc.exe
                1⤵
                • Checks SCSI registry key(s)
                PID:3312
              • C:\Program Files (x86)\Remote Utilities - Host\rutserv.exe
                "C:\Program Files (x86)\Remote Utilities - Host\rutserv.exe" -service
                1⤵
                  PID:2612

                Network

                      MITRE ATT&CK Enterprise v16

                      Replay Monitor

                      Loading Replay Monitor...

                      Downloads

                      e5aad59.rbs

                      • Path C:\Config.Msi\e5aad59.rbs
                      • Size 28KB
                      • SHA256 5df6819f296eed915f7853b646c1677f931a5410cb182f6e57e32b687f8dc19f
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      libasset32.dll

                      • Path C:\Program Files (x86)\Remote Utilities - Host\libasset32.dll
                      • Size 6.7MB
                      • SHA256 ee2aea4b137f4605cda5bd372bd1b6942ba5f3103f3edb7d2a971704a59df07b
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      libasset32.dll

                      • Path C:\Program Files (x86)\Remote Utilities - Host\libasset32.dll
                      • Size 6.6MB
                      • SHA256 3f943cd53be8f3429456bab13578355107688ef295085f56e1321dafc9516437
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      libasset32.dll

                      • Path C:\Program Files (x86)\Remote Utilities - Host\libasset32.dll
                      • Size 6.8MB
                      • SHA256 20caf2feece2e2c3ccbdd34a3b8064c628f6046320125a54309006635a13d0da
                      • 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

                      libasset32.dll

                      • Path C:\Program Files (x86)\Remote Utilities - Host\libasset32.dll
                      • Size 8.2MB
                      • SHA256 372da128866add9b05a75109ec2c2ecd2e2b0071ca77bd581df238f689021545
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      libasset32.dll

                      • Path C:\Program Files (x86)\Remote Utilities - Host\libasset32.dll
                      • Size 7.5MB
                      • SHA256 659e107cd6bbf72b9a06a85edb8961026d015443d65b78d7d5873f864cbb27d8
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      libasset32.dll

                      • Path C:\Program Files (x86)\Remote Utilities - Host\libasset32.dll
                      • Size 6.9MB
                      • SHA256 0eaa85279e4ea22b4d6c89c075d2894451347019c7a918fb02820037173c2e50
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      rfusclient.exe

                      • Path C:\Program Files (x86)\Remote Utilities - Host\rfusclient.exe
                      • Size 9.3MB
                      • SHA256 8bfd4b5016decfa8c1de3f177e90d1e818c58ad5da8da789b435e96d3b3c912b
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      rutserv.exe

                      • Path C:\Program Files (x86)\Remote Utilities - Host\rutserv.exe
                      • Size 6.2MB
                      • SHA256 694844e0c35366ad40152c0a0eb5eaa978911999336b5ab34e10d7170a2eb6ba
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      rutserv.exe

                      • Path C:\Program Files (x86)\Remote Utilities - Host\rutserv.exe
                      • Size 6.3MB
                      • SHA256 a74704f2213a8dc00c00a82380f692e545bd34064dd3fd670f859eeefb2a9d5f
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      rutserv.exe

                      • Path C:\Program Files (x86)\Remote Utilities - Host\rutserv.exe
                      • Size 6.4MB
                      • SHA256 8864e725546f7d9b8fded35ce305959a132ad0980d10cca5ba61b15eecbfeced
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      rutserv.exe

                      • Path C:\Program Files (x86)\Remote Utilities - Host\rutserv.exe
                      • Size 7.9MB
                      • SHA256 aa2086acf320a65c32ae69c022330c669addbf858857b427761fafe955c82934
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      rutserv.exe

                      • Path C:\Program Files (x86)\Remote Utilities - Host\rutserv.exe
                      • Size 7.1MB
                      • SHA256 e05b4855f33a97692bd8521f53903fc9c68505cf7013d498aab49cad62137c93
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      rutserv.exe

                      • Path C:\Program Files (x86)\Remote Utilities - Host\rutserv.exe
                      • Size 6.5MB
                      • SHA256 d463188fb707ded8c9a27d36bc0d31616875d0dada2b347317f41962981dadca
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      MSI9C36.tmp

                      • Path C:\Users\Admin\AppData\Local\Temp\MSI9C36.tmp
                      • Size 649KB
                      • SHA256 085eacfc60a533c33950ac55f17a3afa5b7baf6e5ba73ec112adf5ed88177175
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      e5aad5a.msi

                      • Path C:\Windows\Installer\e5aad5a.msi
                      • Size 12.2MB
                      • SHA256 fbffbdddc9c0b48361ff8d84c6c057808bf13b99d2d109bda9b7bf7e905ba461
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      metadata-2

                      • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
                      • Size 5.9MB
                      • SHA256 47602a2dad5f743097f668f93f76fc90553c530a76f7dcab8e2b42d5940ff05c
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      {c957c883-ce23-464a-bec5-fc6fdd8071b8}_OnDiskSnapshotProp

                      • Path \??\Volume{e35b4427-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{c957c883-ce23-464a-bec5-fc6fdd8071b8}_OnDiskSnapshotProp
                      • Size 6KB
                      • SHA256 03c367bdb73d6989e9ec47664ec2968a6d371b103c4bac864fd7c9bf92687e15
                      • MD5 SHA1 SHA512 SSDEEP TLSH

                      memory/1960-85-0x0000000000780000-0x00000000017BE000-memory.dmp

                      memory/1960-86-0x000000006D280000-0x000000006D9B6000-memory.dmp

                      memory/2612-110-0x00000000007D0000-0x0000000001E0C000-memory.dmp

                      memory/2612-111-0x000000006D280000-0x000000006D9B6000-memory.dmp

                      memory/3220-105-0x000000006D280000-0x000000006D9B6000-memory.dmp

                      memory/3220-104-0x00000000007D0000-0x0000000001E0C000-memory.dmp

                      memory/3324-114-0x00000000007D0000-0x0000000001E0C000-memory.dmp

                      memory/3324-115-0x000000006D280000-0x000000006D9B6000-memory.dmp

                      memory/3324-119-0x000000006D280000-0x000000006D9B6000-memory.dmp

                      memory/3324-118-0x00000000007D0000-0x0000000001E0C000-memory.dmp

                      memory/3816-101-0x000000006D280000-0x000000006D9B6000-memory.dmp

                      memory/3816-100-0x00000000007D0000-0x0000000001E0C000-memory.dmp

                      memory/5240-91-0x00000000007D0000-0x0000000001E0C000-memory.dmp

                      memory/5240-92-0x000000006D280000-0x000000006D9B6000-memory.dmp