Analysis

  • max time kernel
    148s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/06/2024, 02:28

General

  • Target
    PPT_WPS-offce_WIN64.msi
  • Size 221.7MB
  • Sample240622-cx13maxdpj
  • SHA256 d20a66f15530e9d2dbc74567d30a8b839f0b5a68f43387aaf16291802ebd0049
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • 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 8 IoCs
  • Drops file in Windows directory 8 IoCs
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 17 IoCs
  • Enumerates physical storage devices 1 TTPs

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

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

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 14 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\PPT_WPS-offce_WIN64.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:3772
  • 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
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4888
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:1448
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 69617F21C5D6E05872620CB6AEDA1977
        2⤵
        • Drops file in Program Files directory
        • Modifies registry class
        • Suspicious use of WriteProcessMemory
        PID:3648
        • C:\Program Files\Windows Defenderr\lop.exe
          "C:\Program Files\Windows Defenderr\lop.exe"
          3⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4292
          • C:\ProgramData\kingsoft\20240622_22944\lop.exe
            "C:\ProgramData\kingsoft\20240622_22944\lop.exe"
            4⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious behavior: AddClipboardFormatListener
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of SetWindowsHookEx
            PID:1092
        • C:\Program Files\Windows Defenderr\Phone.exe
          "C:\Program Files\Windows Defenderr\Phone.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1640
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      • Suspicious use of AdjustPrivilegeToken
      PID:3700
    • C:\ProgramData\kingsoft\20240622_22944\lop.exe
      "C:\ProgramData\kingsoft\20240622_22944\lop.exe" -downpower -msgwndname=wpssetup_message_E57A623 -curinstalltemppath=C:\Users\Admin\AppData\Local\Temp\wps\~e57a299\
      1⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      PID:3884

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          e57889c.rbs

          • Path C:\Config.Msi\e57889c.rbs
          • Size 8KB
          • SHA256 5fdd9592ef979141fc9a4a6b000a1ee348da084e08210006bdb4a4c1fd79e414
          • MD5 SHA1 SHA512 SSDEEP

          1

          • Path C:\Program Files\Windows Defenderr\1
          • Size 483KB
          • SHA256 cad9fcfa069fc7de9f5d2b7c66bd5c4ca714777bf5db253418a664e7723026d1
          • MD5 SHA1 SHA512 SSDEEP

          2

          • Path C:\Program Files\Windows Defenderr\2
          • Size 337KB
          • SHA256 95763e1a2e24b815c5b370c43664ad36a85a7be0f56ccbadb4d774cf07e539c2
          • MD5 SHA1 SHA512 SSDEEP

          oem.ini

          • Path C:\ProgramData\kingsoft\20240622_22944\oem.ini
          • Size 300B
          • SHA256 ac4222cad36842b78351bcdd9bf49450082ee99c9e99305e4c9bf05a34e59fa5
          • MD5 SHA1 SHA512

          System.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nso9BA5.tmp\System.dll
          • Size 11KB
          • SHA256 ac9dfe3b35ea4b8932536ed7406c29a432976b685cc5322f94ef93df920fede7
          • MD5 SHA1 SHA512 SSDEEP

          v6svc_oem.dll

          • Path C:\Users\Admin\AppData\Local\Temp\nso9BA5.tmp\v6svc_oem.dll
          • Size 192KB
          • SHA256 d3378ee739debcaee8c715963403d96bf025db98bfbb55e54635429890db85c6
          • MD5 SHA1 SHA512 SSDEEP

          Qt5CoreKso.dll

          • Path C:\Users\Admin\AppData\Local\Temp\wps\~e57a299\CONTROL\office6\Qt5CoreKso.dll
          • Size 5.0MB
          • SHA256 07dbecf0fa0d79d2d4237d53e8b905677a977a3cf3c43f251cbddcc032cd6c2d
          • MD5 SHA1 SHA512 SSDEEP

          Qt5GuiKso.dll

          • Path C:\Users\Admin\AppData\Local\Temp\wps\~e57a299\CONTROL\office6\Qt5GuiKso.dll
          • Size 5.3MB
          • SHA256 fe999e848637dcf8f209181baf71c590197af2dbd01b30f976179fd5809bfcd6
          • MD5 SHA1 SHA512 SSDEEP

          Qt5SvgKso.dll

          • Path C:\Users\Admin\AppData\Local\Temp\wps\~e57a299\CONTROL\office6\Qt5SvgKso.dll
          • Size 359KB
          • SHA256 dfbcba58ce097a2fd3a5df4465ddecb13a1cdf5800e3bc4755170aaf25749725
          • MD5 SHA1 SHA512 SSDEEP

          Qt5WidgetsKso.dll

          • Path C:\Users\Admin\AppData\Local\Temp\wps\~e57a299\CONTROL\office6\Qt5WidgetsKso.dll
          • Size 4.4MB
          • SHA256 0bfe39d7de0c08f8c60d746167777954575f626d041bc7c3faccaa7ef6ceb2fc
          • MD5 SHA1 SHA512 SSDEEP

          Qt5WinExtrasKso.dll

          • Path C:\Users\Admin\AppData\Local\Temp\wps\~e57a299\CONTROL\office6\Qt5WinExtrasKso.dll
          • Size 388KB
          • SHA256 e6ee77a78ec2b374acc9757670e4f295948171d300fb2bf2d3e4fa702aa4f844
          • MD5 SHA1 SHA512 SSDEEP

          kpacketui.dll

          • Path C:\Users\Admin\AppData\Local\Temp\wps\~e57a299\CONTROL\office6\kpacketui.dll
          • Size 1.5MB
          • SHA256 de0ec3555a4764225803f50088971ea77e2499db9be1834efb35ae77d43e6fe3
          • MD5 SHA1 SHA512 SSDEEP

          msvcp140.dll

          • Path C:\Users\Admin\AppData\Local\Temp\wps\~e57a299\CONTROL\office6\msvcp140.dll
          • Size 439KB
          • SHA256 02c7259456eac8cbadfb460377ba68e98282400c7a4a9d0bf49b3313ef6d554d
          • MD5 SHA1 SHA512 SSDEEP

          qsvgicon.dll

          • Path C:\Users\Admin\AppData\Local\Temp\wps\~e57a299\CONTROL\office6\qt\plugins\iconengines\qsvgicon.dll
          • Size 56KB
          • SHA256 ab6aa9da2fb9d18729b088dc1f62c1ad3c69e76f81909e3aa2d77534c71175ec
          • MD5 SHA1 SHA512 SSDEEP

          qsvg.dll

          • Path C:\Users\Admin\AppData\Local\Temp\wps\~e57a299\CONTROL\office6\qt\plugins\imageformats\qsvg.dll
          • Size 35KB
          • SHA256 2f58c9bd2798c1b3751ce8cd0496c0809e405b1f23b3017f63ed63f35c072b29
          • MD5 SHA1 SHA512 SSDEEP

          qwindows.dll

          • Path C:\Users\Admin\AppData\Local\Temp\wps\~e57a299\CONTROL\office6\qt\plugins\platforms\qwindows.dll
          • Size 1.3MB
          • SHA256 e57ec14808e775223cff206d176ac182f2e0d45868ab27d4cf4bb0f1a5b7ea8c
          • MD5 SHA1 SHA512 SSDEEP

          qwindowsvistastyle.dll

          • Path C:\Users\Admin\AppData\Local\Temp\wps\~e57a299\CONTROL\office6\qt\plugins\styles\qwindowsvistastyle.dll
          • Size 140KB
          • SHA256 3f516ee7950d1702bf8ba5cea0d658fe5f19c0c23fdad2a005e6e4a4f28f7688
          • MD5 SHA1 SHA512 SSDEEP

          ucrtbase.dll

          • Path C:\Users\Admin\AppData\Local\Temp\wps\~e57a299\CONTROL\office6\ucrtbase.dll
          • Size 1.1MB
          • SHA256 2ad9a105a9caa24f41e7b1a6f303c07e6faeceaf3aaf43ebd644d9d5746a4359
          • MD5 SHA1 SHA512 SSDEEP

          vcruntime140.dll

          • Path C:\Users\Admin\AppData\Local\Temp\wps\~e57a299\CONTROL\office6\vcruntime140.dll
          • Size 81KB
          • SHA256 ff9c1123cff493a8f5eacb91115611b6c1c808b30c82af9b6f388c0ef1f6b46d
          • MD5 SHA1 SHA512 SSDEEP

          product.dat

          • Path C:\Users\Admin\AppData\Local\Temp\wps\~e57a299\CONTROL\product.dat
          • Size 52KB
          • SHA256 fd675d3fb5922605e367d99bab20efd1d9e4b4ad8decf67071035d3a8976e502
          • MD5 SHA1 SHA512 SSDEEP

          tempinstall.ini

          • Path C:\Users\Admin\AppData\Local\tempinstall.ini
          • Size 363B
          • SHA256 90b2af69f94515f67f5c8ba104ab2ac467988da2b1b10ec6286e1a8206ce4093
          • MD5 SHA1 SHA512

          tempinstall.ini

          • Path C:\Users\Admin\AppData\Local\tempinstall.ini
          • Size 409B
          • SHA256 7fa5672cb5ed1900b611ef0485165df2702c611445d94150598fa1b3ed7c8037
          • MD5 SHA1 SHA512

          wpssetup.log

          • Path C:\Users\Admin\AppData\Roaming\kingsoft\office6\log\setup\wpssetup.log
          • Size 27KB
          • SHA256 d3a832fbf055bb94ead0f4f687077ec7013c5ac4b49d90f428f58a19ac5b39ed
          • MD5 SHA1 SHA512 SSDEEP

          wpssetup.log

          • Path C:\Users\Admin\AppData\Roaming\kingsoft\office6\log\setup\wpssetup.log
          • Size 28KB
          • SHA256 819705a7605819c090fcdce7fa6b49ee78686a278bb513295445884d9c9f3d3b
          • MD5 SHA1 SHA512 SSDEEP

          wpssetup.log

          • Path C:\Users\Admin\AppData\Roaming\kingsoft\office6\log\setup\wpssetup.log
          • Size 45KB
          • SHA256 c756c31328c1a377e9ad2b5bdf95ab30ae96704ad0932e71d87a6d04d1648d55
          • MD5 SHA1 SHA512 SSDEEP

          metadata-2

          • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
          • Size 23.7MB
          • SHA256 bd937964ace5ba65b806fca359c0535b0f2670e704f04e3908f7b43cef64523f
          • MD5 SHA1 SHA512 SSDEEP

          {7809bb28-430a-42cd-8c41-1dceadacf03b}_OnDiskSnapshotProp

          • Path \??\Volume{8a2a71c9-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{7809bb28-430a-42cd-8c41-1dceadacf03b}_OnDiskSnapshotProp
          • Size 6KB
          • SHA256 18d4afb417b878b177e1cc827724d705652c6fa553ad15f9be17fad121883806
          • MD5 SHA1 SHA512 SSDEEP

          memory/1640-523-0x00000000009D0000-0x0000000000A57000-memory.dmp