Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/01/2024, 19:20

General

  • Target
    a55653f091ed18edbe657030b185c23e.exe
  • Size 512KB
  • Sample240107-x2bzhsccep
  • SHA256 e2f3a6e1d219c9304c3cfabcf3ed5436b7b94fae2c578df159b40ac9e1fbf8ec
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • Windows security bypass 2 TTPs 5 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 5 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Windows security modification 2 TTPs 6 IoCs
  • Adds Run key to start application 2 TTPs 3 IoCs
  • Enumerates connected drives 3 TTPs 64 IoCs

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

  • Modifies WinLogon 2 TTPs 2 IoCs
  • AutoIT Executable 17 IoCs

    AutoIT scripts compiled to PE executables.

  • Drops file in System32 directory 13 IoCs
  • Drops file in Program Files directory 15 IoCs
  • Drops file in Windows directory 19 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 20 IoCs
  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of FindShellTrayWindow 18 IoCs
  • Suspicious use of SendNotifyMessage 18 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a55653f091ed18edbe657030b185c23e.exe
    "C:\Users\Admin\AppData\Local\Temp\a55653f091ed18edbe657030b185c23e.exe"
    1⤵
    • Checks computer location settings
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:4716
    • C:\Windows\SysWOW64\zknqubcpxzdrnyg.exe
      zknqubcpxzdrnyg.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2904
    • C:\Windows\SysWOW64\sdvvumaw.exe
      sdvvumaw.exe
      2⤵
      • Executes dropped EXE
      • Enumerates connected drives
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:2324
    • C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
      "C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Windows\mydoc.rtf" /o ""
      2⤵
      • Drops file in Windows directory
      • Checks processor information in registry
      • Enumerates system info in registry
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of SetWindowsHookEx
      PID:1888
    • C:\Windows\SysWOW64\nevaqadkxpwwr.exe
      nevaqadkxpwwr.exe
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      PID:4568
    • C:\Windows\SysWOW64\xqkjqhcidd.exe
      xqkjqhcidd.exe
      2⤵
      • Modifies visibility of file extensions in Explorer
      • Modifies visiblity of hidden/system files in Explorer
      • Windows security bypass
      • Disables RegEdit via registry modification
      • Executes dropped EXE
      • Windows security modification
      • Enumerates connected drives
      • Modifies WinLogon
      • Drops file in System32 directory
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:5020
  • C:\Windows\SysWOW64\sdvvumaw.exe
    C:\Windows\system32\sdvvumaw.exe
    1⤵
    • Executes dropped EXE
    • Enumerates connected drives
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:3924

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        PROTTPLN.DOC.exe

        • Path C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLN.DOC.exe
        • Size 94KB
        • SHA256 2e3f2a3e7f185b1049ff36e8f91ed75257e0630c16b3b064e91cf3c6a90aa1e4
        • MD5 SHA1 SHA512 SSDEEP

        PROTTPLV.DOC.exe

        • Path C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLV.DOC.exe
        • Size 70KB
        • SHA256 61af45b4e5e6874cb17af4ca2e3200284e8eed1bdfa68cbcd2062ae4f422de0f
        • MD5 SHA1 SHA512 SSDEEP

        index.dat

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Office\Recent\index.dat
        • Size 239B
        • SHA256 9def83813762ad0c5f6fdd68707d43b7ccd26633b2123254272180d76bc3faaf
        • MD5 SHA1 SHA512

        fb3b0dbfee58fac8.customDestinations-ms

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\fb3b0dbfee58fac8.customDestinations-ms
        • Size 3KB
        • SHA256 8d673aef8428334f765845bd3c01fb552edf4f5a8f1838497ab729e41a45b83f
        • MD5 SHA1 SHA512

        fb3b0dbfee58fac8.customDestinations-ms

        • Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\fb3b0dbfee58fac8.customDestinations-ms
        • Size 3KB
        • SHA256 50bee110d2282d15fb42f62109916d8323948a1516e028fba1e4b8da03b7c097
        • MD5 SHA1 SHA512

        nevaqadkxpwwr.exe

        • Path C:\Windows\SysWOW64\nevaqadkxpwwr.exe
        • Size 149KB
        • SHA256 4e9231d36d7c9aadd6a627de644ddf942629f80c1d33739a9cdded3380bfca92
        • MD5 SHA1 SHA512 SSDEEP

        nevaqadkxpwwr.exe

        • Path C:\Windows\SysWOW64\nevaqadkxpwwr.exe
        • Size 141KB
        • SHA256 d5da42b3e1193ccddc2c6a6ede9d12156d6a05ab2d23e389662777810204ac5b
        • MD5 SHA1 SHA512 SSDEEP

        sdvvumaw.exe

        • Path C:\Windows\SysWOW64\sdvvumaw.exe
        • Size 286KB
        • SHA256 38a68a4cc5711fe9b2b363f745f286aa7de369f2c13e4ddca571a6b2c6e72c43
        • MD5 SHA1 SHA512 SSDEEP

        sdvvumaw.exe

        • Path C:\Windows\SysWOW64\sdvvumaw.exe
        • Size 227KB
        • SHA256 e292c9c81908f49e54e9ed0c03c024b2764eebca44e8ab1228efea1154c8bdf2
        • MD5 SHA1 SHA512 SSDEEP

        sdvvumaw.exe

        • Path C:\Windows\SysWOW64\sdvvumaw.exe
        • Size 154KB
        • SHA256 0dfba2ab75a66072278603be912db56295bb4470aa11f50f590994ddbfaf6784
        • MD5 SHA1 SHA512 SSDEEP

        xqkjqhcidd.exe

        • Path C:\Windows\SysWOW64\xqkjqhcidd.exe
        • Size 193KB
        • SHA256 fa2dbaf77184be2125a7faf94a4d38d809da41fe96969d8c683a948898a6ae52
        • MD5 SHA1 SHA512 SSDEEP

        xqkjqhcidd.exe

        • Path C:\Windows\SysWOW64\xqkjqhcidd.exe
        • Size 126KB
        • SHA256 8aa300da89e9875ebd69cd5173ed5e8fab83043c6cf701e71628841b75cf67d0
        • MD5 SHA1 SHA512 SSDEEP

        zknqubcpxzdrnyg.exe

        • Path C:\Windows\SysWOW64\zknqubcpxzdrnyg.exe
        • Size 157KB
        • SHA256 21b01eb8aca8303499059d54f5c0bf11f2ae0bf3f3a58253c8794d1bb8842f42
        • MD5 SHA1 SHA512 SSDEEP

        zknqubcpxzdrnyg.exe

        • Path C:\Windows\SysWOW64\zknqubcpxzdrnyg.exe
        • Size 176KB
        • SHA256 4f1498efede0d439e3644d0b6d63e056c934ea63bbf1429d91e2e39ddc921ef3
        • MD5 SHA1 SHA512 SSDEEP

        zknqubcpxzdrnyg.exe

        • Path C:\Windows\SysWOW64\zknqubcpxzdrnyg.exe
        • Size 388KB
        • SHA256 8332e6d7217ee1aa5adf469e8b25ab25b73a0b8dff1a93e9b99fe6eeccfdd2e9
        • MD5 SHA1 SHA512 SSDEEP

        mydoc.rtf

        • Path C:\Windows\mydoc.rtf
        • Size 223B
        • SHA256 85f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2
        • MD5 SHA1 SHA512

        MsoIrmProtector.doc.exe

        • Path \??\c:\Windows\SysWOW64\MSDRM\MsoIrmProtector.doc.exe
        • Size 57KB
        • SHA256 7afee2b09ec479879bca80da134ceff2df40ad8eff99ed5b1461e6b64e3c474e
        • MD5 SHA1 SHA512 SSDEEP

        MsoIrmProtector.doc.exe

        • Path \??\c:\Windows\SysWOW64\MSDRM\MsoIrmProtector.doc.exe
        • Size 31KB
        • SHA256 f575abb671bdaed6cff1648fd5caf0426c3d88e40e41c2902844b015536634b2
        • MD5 SHA1 SHA512 SSDEEP

        MsoIrmProtector.doc.exe

        • Path \??\c:\Windows\SysWOW64\MSDRM\MsoIrmProtector.doc.exe
        • Size 21KB
        • SHA256 8f1d8d9584e76cf3dba8216171376d8a8fecea53d3f98008ea432fb9326547a7
        • MD5 SHA1 SHA512 SSDEEP

        MsoIrmProtector.doc.exe

        • Path \??\c:\Windows\SysWOW64\MSDRM\MsoIrmProtector.doc.exe
        • Size 296KB
        • SHA256 f3ccf8404009dddb8b726cc094e8835e6fa5e5ed91dde8edfeb927c8ad2de99c
        • MD5 SHA1 SHA512 SSDEEP

        memory/1888-57-0x00007FF989A90000-0x00007FF989AA0000-memory.dmp

        memory/1888-51-0x00007FF9CBD90000-0x00007FF9CBF85000-memory.dmp

        memory/1888-48-0x00007FF9CBD90000-0x00007FF9CBF85000-memory.dmp

        memory/1888-50-0x00007FF989A90000-0x00007FF989AA0000-memory.dmp

        memory/1888-42-0x00007FF98BE10000-0x00007FF98BE20000-memory.dmp

        memory/1888-41-0x00007FF9CBD90000-0x00007FF9CBF85000-memory.dmp

        memory/1888-39-0x00007FF9CBD90000-0x00007FF9CBF85000-memory.dmp

        memory/1888-38-0x00007FF98BE10000-0x00007FF98BE20000-memory.dmp

        memory/1888-36-0x00007FF98BE10000-0x00007FF98BE20000-memory.dmp

        memory/1888-35-0x00007FF98BE10000-0x00007FF98BE20000-memory.dmp

        memory/1888-52-0x00007FF9CBD90000-0x00007FF9CBF85000-memory.dmp

        memory/1888-54-0x00007FF9CBD90000-0x00007FF9CBF85000-memory.dmp

        memory/1888-56-0x00007FF9CBD90000-0x00007FF9CBF85000-memory.dmp

        memory/1888-58-0x00007FF9CBD90000-0x00007FF9CBF85000-memory.dmp

        memory/1888-138-0x00007FF98BE10000-0x00007FF98BE20000-memory.dmp

        memory/1888-55-0x00007FF9CBD90000-0x00007FF9CBF85000-memory.dmp

        memory/1888-53-0x00007FF9CBD90000-0x00007FF9CBF85000-memory.dmp

        memory/1888-46-0x00007FF9CBD90000-0x00007FF9CBF85000-memory.dmp

        memory/1888-49-0x00007FF9CBD90000-0x00007FF9CBF85000-memory.dmp

        memory/1888-47-0x00007FF9CBD90000-0x00007FF9CBF85000-memory.dmp

        memory/1888-43-0x00007FF9CBD90000-0x00007FF9CBF85000-memory.dmp

        memory/1888-40-0x00007FF98BE10000-0x00007FF98BE20000-memory.dmp

        memory/1888-37-0x00007FF9CBD90000-0x00007FF9CBF85000-memory.dmp

        memory/1888-114-0x00007FF9CBD90000-0x00007FF9CBF85000-memory.dmp

        memory/1888-115-0x00007FF9CBD90000-0x00007FF9CBF85000-memory.dmp

        memory/1888-116-0x00007FF9CBD90000-0x00007FF9CBF85000-memory.dmp

        memory/1888-140-0x00007FF98BE10000-0x00007FF98BE20000-memory.dmp

        memory/1888-139-0x00007FF98BE10000-0x00007FF98BE20000-memory.dmp

        memory/1888-141-0x00007FF98BE10000-0x00007FF98BE20000-memory.dmp

        memory/1888-143-0x00007FF9CBD90000-0x00007FF9CBF85000-memory.dmp

        memory/1888-144-0x00007FF9CBD90000-0x00007FF9CBF85000-memory.dmp

        memory/1888-142-0x00007FF9CBD90000-0x00007FF9CBF85000-memory.dmp

        memory/4716-0-0x0000000000400000-0x0000000000496000-memory.dmp