Resubmissions

26/07/2026, 23:23

260726-3dd2vssfnd10

26/07/2026, 23:22

260726-3cqn9ssxgv4

26/07/2026, 23:21

260726-3cgrcsen4z3

26/07/2026, 23:21

260726-3b6n4aen4s3

Analysis

  • user interaction
    yes
  • max time kernel
    256s
  • max time network
    224s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-es
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-eslocale:es-esos:windows11-ltsc_2024-x64systemwindows
  • submitted
    26/07/2026, 23:23

General

  • Target
    Debug.zip
  • Size 16.0MB
  • Sample260726-3dd2vssfnd
  • SHA256 3bbf9016933beb7a5b1a6bdd4bcdf54de712214940f187c3a223ef2385dfd749
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Modifies Windows Defender DisableAntiSpyware settings 3 TTPs 1 IoCs
  • Modifies Windows Defender Real-time Protection settings 3 TTPs 2 IoCs
  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
  • Modifies visibility of hidden/system files in Explorer 2 TTPs 1 IoCs
  • UAC bypass 3 TTPs 2 IoCs
  • Blocks application from running via registry modification 1 IoCs

    Adds application to list of disallowed applications.

  • Disables use of System Restore points 1 TTPs
  • Enumerates connected drives 3 TTPs 23 IoCs

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

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 16 IoCs
  • Program crash 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.

  • Modifies Internet Explorer start page 1 TTPs 1 IoCs
  • Modifies registry class 2 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs

Processes

  • C:\Windows\Explorer.exe
    C:\Windows\Explorer.exe /idlist,,C:\Users\Admin\AppData\Local\Temp\Debug.zip
    1⤵
      PID:5864
    • C:\Windows\System32\rundll32.exe
      C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
      1⤵
        PID:4184
      • C:\Windows\System32\DataExchangeHost.exe
        C:\Windows\System32\DataExchangeHost.exe -Embedding
        1⤵
          PID:7156
        • C:\Users\Admin\Desktop\Debug\Alya-san.exe
          "C:\Users\Admin\Desktop\Debug\Alya-san.exe"
          1⤵
          • Modifies WinLogon for persistence
          • Modifies Windows Defender DisableAntiSpyware settings
          • Modifies Windows Defender Real-time Protection settings
          • Modifies visibility of file extensions in Explorer
          • Modifies visibility of hidden/system files in Explorer
          • UAC bypass
          • Blocks application from running via registry modification
          • Enumerates connected drives
          • Drops file in Program Files directory
          • Drops file in Windows directory
          • System Location Discovery: System Language Discovery
          • Modifies Internet Explorer start page
          • Modifies registry class
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SendNotifyMessage
          PID:4336
          • C:\Windows\system32\reg.exe
            delete "HKLM\SYSTEM\CurrentControlSet\Services\WinDefend" /f
            2⤵
              PID:2176
            • C:\Windows\system32\reg.exe
              delete "HKLM\SYSTEM\ControlSet001\Services\WinDefend" /f
              2⤵
                PID:2212
              • C:\Windows\system32\reg.exe
                delete "HKLM\SYSTEM\CurrentControlSet\Services\AVP21.3" /f
                2⤵
                  PID:7072
                • C:\Windows\system32\reg.exe
                  delete "HKLM\SYSTEM\ControlSet001\Services\AVP21.3" /f
                  2⤵
                    PID:4696
                  • C:\Windows\system32\reg.exe
                    delete "HKLM\SYSTEM\CurrentControlSet\Services\MBAMService" /f
                    2⤵
                      PID:964
                    • C:\Windows\system32\reg.exe
                      delete "HKLM\SYSTEM\ControlSet001\Services\MBAMService" /f
                      2⤵
                        PID:4364
                      • C:\Windows\system32\reg.exe
                        delete "HKLM\SYSTEM\CurrentControlSet\Services\VSSERV" /f
                        2⤵
                          PID:6804
                        • C:\Windows\system32\reg.exe
                          delete "HKLM\SYSTEM\ControlSet001\Services\VSSERV" /f
                          2⤵
                            PID:2516
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -u -p 4336 -s 4392
                            2⤵
                            • Program crash
                            PID:4432
                        • C:\Windows\system32\AUDIODG.EXE
                          C:\Windows\system32\AUDIODG.EXE 0x00000000000004D8 0x00000000000004D4
                          1⤵
                          • Suspicious use of AdjustPrivilegeToken
                          PID:4348
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4336 -ip 4336
                          1⤵
                            PID:5988
                          • C:\Windows\system32\NOTEPAD.EXE
                            "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\crashlog.txt
                            1⤵
                            • Modifies registry class
                            • Opens file in notepad (likely ransom note)
                            PID:5832

                          Network

                                MITRE ATT&CK Enterprise v16

                                Replay Monitor

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                                Downloads

                                CurrentDatabase_400.wmdb

                                • Path C:\Users\Admin\AppData\Local\Microsoft\Media Player\CurrentDatabase_400.wmdb
                                • Size 896KB
                                • SHA256 529e94be7e41f4f0257d302f16c5ef65c8488e0c8e113c72bb283fd1a05acfdd
                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                road.mp4

                                • Path C:\Users\Admin\AppData\Local\Temp\road.mp4
                                • Size 2.1MB
                                • SHA256 878262feb9a162d0b028a7870635dce87ceee5eda6e0fa3afaaec51c9abfe1b5
                                • MD5 SHA1 SHA512 SSDEEP TLSH

                                Alya-san.ini

                                • Path C:\Users\Admin\AppData\Roaming\Alya-san\Alya-san.ini
                                • Size 72B
                                • SHA256 901abb764725eb66f25b1aa2b22a950e765091794d5f8d4e053a2252f7e44846
                                • MD5 SHA1 SHA512 TLSH

                                Alya-san.ini~RFe5a2348.TMP

                                • Path C:\Users\Admin\AppData\Roaming\Alya-san\Alya-san.ini~RFe5a2348.TMP
                                • Size 71B
                                • SHA256 3aa0a5aa1df2f8940d7c346ef014148292c693c78e74b79128b3bf46da5c0f0c
                                • MD5 SHA1 SHA512 TLSH

                                crashlog.txt

                                • Path C:\Users\Admin\Desktop\crashlog.txt
                                • Size 994B
                                • SHA256 822950dbc81a0d76672c49d4b5a17f53107ea58fe88c863ac4e32ae1bc02b26e
                                • MD5 SHA1 SHA512 TLSH

                                memory/4336-20-0x000000000AAA0000-0x000000000AB06000-memory.dmp

                                memory/4336-38-0x000000000C520000-0x000000000C530000-memory.dmp

                                memory/4336-9-0x000000000A130000-0x000000000A13E000-memory.dmp

                                memory/4336-10-0x000000000AC30000-0x000000000AC76000-memory.dmp

                                memory/4336-7-0x000000000A0D0000-0x000000000A0F0000-memory.dmp

                                memory/4336-6-0x0000000009FB0000-0x0000000009FB8000-memory.dmp

                                memory/4336-19-0x000000000AA00000-0x000000000AA0E000-memory.dmp

                                memory/4336-0-0x0000000074E42000-0x0000000074E43000-memory.dmp

                                memory/4336-21-0x0000000074E42000-0x0000000074E43000-memory.dmp

                                memory/4336-36-0x000000000C520000-0x000000000C530000-memory.dmp

                                memory/4336-39-0x000000000C520000-0x000000000C530000-memory.dmp

                                memory/4336-8-0x000000000A160000-0x000000000A19E000-memory.dmp

                                memory/4336-37-0x000000000C520000-0x000000000C530000-memory.dmp

                                memory/4336-40-0x000000000C520000-0x000000000C530000-memory.dmp

                                memory/4336-41-0x000000000C520000-0x000000000C530000-memory.dmp

                                memory/4336-43-0x000000000C520000-0x000000000C530000-memory.dmp

                                memory/4336-42-0x000000000C520000-0x000000000C530000-memory.dmp

                                memory/4336-5-0x00000000062D0000-0x0000000006362000-memory.dmp

                                memory/4336-2-0x0000000007360000-0x000000000791A000-memory.dmp

                                memory/4336-63-0x00000000143C0000-0x00000000144C2000-memory.dmp

                                memory/4336-1-0x0000000000670000-0x0000000001780000-memory.dmp