Analysis

  • max time kernel
    150s
  • max time network
    157s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240508-en
  • resource tags

    arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-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

  • Detect PurpleFox Rootkit 1 IoCs

    Detect PurpleFox Rootkit.

  • Gh0st RAT payload 1 IoCs
  • Gh0strat

    Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.

  • PurpleFox

    PurpleFox is an exploit kit used to distribute other malware families and first seen in 2018.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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 12 IoCs
  • Executes dropped EXE 7 IoCs
  • Loads dropped DLL 19 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
  • Program crash 1 IoCs
  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

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

  • Enumerates processes with tasklist 1 TTPs 3 IoCs
  • Modifies registry class 3 IoCs
  • Runs ping.exe 1 TTPs 3 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 18 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 44 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:2376
  • 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:1780
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4716
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding AA0F7F32518E6AD857E53709D465617A
      2⤵
      • Drops file in Program Files directory
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:1672
      • 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:3824
        • C:\ProgramData\kingsoft\20240622_22937\lop.exe
          "C:\ProgramData\kingsoft\20240622_22937\lop.exe"
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious behavior: AddClipboardFormatListener
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of SetWindowsHookEx
          PID:2732
      • C:\Program Files\Windows Defenderr\Phone.exe
        "C:\Program Files\Windows Defenderr\Phone.exe"
        3⤵
        • Executes dropped EXE
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4156
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4156 -s 1204
          4⤵
          • Program crash
          PID:3596
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious use of AdjustPrivilegeToken
    PID:1656
  • C:\ProgramData\kingsoft\20240622_22937\lop.exe
    "C:\ProgramData\kingsoft\20240622_22937\lop.exe" -downpower -msgwndname=wpssetup_message_E579A1D -curinstalltemppath=C:\Users\Admin\AppData\Local\Temp\wps\~e579664\
    1⤵
    • Executes dropped EXE
    • Suspicious behavior: EnumeratesProcesses
    PID:912
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:1904
    • C:\ProgramData\{86D30F4C-E8A3-4d3c-BA14-55xv70w5199F}\{6DD3220A-FFDB-47f5-A616-D4xv7Bw5C911}.exe
      "C:\ProgramData\{86D30F4C-E8A3-4d3c-BA14-55xv70w5199F}\{6DD3220A-FFDB-47f5-A616-D4xv7Bw5C911}.exe" /s "C:\ProgramData\{86D30F4C-E8A3-4d3c-BA14-55xv70w5199F}\{BBE4BFBD-9FB4-4f40-BDB2-28xv21w523DD}"
      1⤵
      • Adds Run key to start application
      • Executes dropped EXE
      • Modifies registry class
      PID:132
    • C:\ProgramData\{86D30F4C-E8A3-4d3c-BA14-55xv70w5199F}\{7D96DA5E-275D-470a-9FE2-33xvD0w588DD}\Phone.exe
      C:\ProgramData\{86D30F4C-E8A3-4d3c-BA14-55xv70w5199F}\{7D96DA5E-275D-470a-9FE2-33xvD0w588DD}\Phone.exe
      1⤵
      • Executes dropped EXE
      PID:3744
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4156 -ip 4156
      1⤵
        PID:2908
      • C:\ProgramData\{86D30F4C-E8A3-4d3c-BA14-55xv70w5199F}\{7D96DA5E-275D-470a-9FE2-33xvD0w588DD}\Phone.exe
        C:\ProgramData\{86D30F4C-E8A3-4d3c-BA14-55xv70w5199F}\{7D96DA5E-275D-470a-9FE2-33xvD0w588DD}\Phone.exe
        1⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1880
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c ""C:\ProgramData\{9B848970-CCDC-4ed4-BB41-A9xv65w57148}.cmd" "
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2960
          • C:\Windows\SysWOW64\tasklist.exe
            tasklist /fi "PID eq 1880"
            3⤵
            • Enumerates processes with tasklist
            PID:1552
          • C:\Windows\SysWOW64\findstr.exe
            findstr /i "1880"
            3⤵
              PID:4152
            • C:\Windows\SysWOW64\PING.EXE
              ping -n 20 127.0.0.1
              3⤵
              • Runs ping.exe
              PID:4276
            • C:\Windows\SysWOW64\tasklist.exe
              tasklist /fi "PID eq 1880"
              3⤵
              • Enumerates processes with tasklist
              PID:4640
            • C:\Windows\SysWOW64\findstr.exe
              findstr /i "1880"
              3⤵
                PID:4652
              • C:\Windows\SysWOW64\PING.EXE
                ping -n 20 127.0.0.1
                3⤵
                • Runs ping.exe
                PID:3972
              • C:\Windows\SysWOW64\tasklist.exe
                tasklist /fi "PID eq 1880"
                3⤵
                • Enumerates processes with tasklist
                PID:5004
              • C:\Windows\SysWOW64\findstr.exe
                findstr /i "1880"
                3⤵
                  PID:4164
                • C:\Windows\SysWOW64\PING.EXE
                  ping -n 20 127.0.0.1
                  3⤵
                  • Runs ping.exe
                  PID:3496

            Network

                  MITRE ATT&CK Enterprise v15

                  Replay Monitor

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                  Downloads

                  e577a73.rbs

                  • Path C:\Config.Msi\e577a73.rbs
                  • Size 8KB
                  • SHA256 79a9a6f69df936ffdd7ffa21510f47b951b26f18a5e022006c640aa0f611164f
                  • 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_22937\oem.ini
                  • Size 300B
                  • SHA256 ac4222cad36842b78351bcdd9bf49450082ee99c9e99305e4c9bf05a34e59fa5
                  • MD5 SHA1 SHA512

                  RegWorkshop.ini

                  • Path C:\ProgramData\{86D30F4C-E8A3-4d3c-BA14-55xv70w5199F}\RegWorkshop.ini
                  • Size 1KB
                  • SHA256 a9510ed4f90246fecd78e5cd9e47d9d382c34b7b6493d116a3d355144dfc6cc4
                  • MD5 SHA1 SHA512

                  RegWorkshop.ini

                  • Path C:\ProgramData\{86D30F4C-E8A3-4d3c-BA14-55xv70w5199F}\RegWorkshop.ini
                  • Size 2KB
                  • SHA256 02af5cb061fd8075e9475c45ab20e86cf2bb4ca9511ddad348645ed5183b9fc7
                  • MD5 SHA1 SHA512

                  {6DD3220A-FFDB-47f5-A616-D4xv7Bw5C911}.exe

                  • Path C:\ProgramData\{86D30F4C-E8A3-4d3c-BA14-55xv70w5199F}\{6DD3220A-FFDB-47f5-A616-D4xv7Bw5C911}.exe
                  • Size 1.0MB
                  • SHA256 27c8bd76150ddda5b09d6db11f67269cee2eecac345df67f93aab3e3aaabde7c
                  • MD5 SHA1 SHA512 SSDEEP

                  {BBE4BFBD-9FB4-4f40-BDB2-28xv21w523DD}

                  • Path C:\ProgramData\{86D30F4C-E8A3-4d3c-BA14-55xv70w5199F}\{BBE4BFBD-9FB4-4f40-BDB2-28xv21w523DD}
                  • Size 429B
                  • SHA256 39a4247e0150888b66e3a469f6e8578b57a469ca7e1c6108a4c39503c822091e
                  • MD5 SHA1 SHA512

                  {9B848970-CCDC-4ed4-BB41-A9xv65w57148}.cmd

                  • Path C:\ProgramData\{9B848970-CCDC-4ed4-BB41-A9xv65w57148}.cmd
                  • Size 437B
                  • SHA256 061356f1be8b64476763644f497fdfd69e42d188caac535282cf6e9508267298
                  • MD5 SHA1 SHA512

                  System.dll

                  • Path C:\Users\Admin\AppData\Local\Temp\nsy8EE3.tmp\System.dll
                  • Size 11KB
                  • SHA256 ac9dfe3b35ea4b8932536ed7406c29a432976b685cc5322f94ef93df920fede7
                  • MD5 SHA1 SHA512 SSDEEP

                  v6svc_oem.dll

                  • Path C:\Users\Admin\AppData\Local\Temp\nsy8EE3.tmp\v6svc_oem.dll
                  • Size 192KB
                  • SHA256 d3378ee739debcaee8c715963403d96bf025db98bfbb55e54635429890db85c6
                  • MD5 SHA1 SHA512 SSDEEP

                  Qt5CoreKso.dll

                  • Path C:\Users\Admin\AppData\Local\Temp\wps\~e579664\CONTROL\office6\Qt5CoreKso.dll
                  • Size 5.0MB
                  • SHA256 07dbecf0fa0d79d2d4237d53e8b905677a977a3cf3c43f251cbddcc032cd6c2d
                  • MD5 SHA1 SHA512 SSDEEP

                  Qt5GuiKso.dll

                  • Path C:\Users\Admin\AppData\Local\Temp\wps\~e579664\CONTROL\office6\Qt5GuiKso.dll
                  • Size 5.3MB
                  • SHA256 fe999e848637dcf8f209181baf71c590197af2dbd01b30f976179fd5809bfcd6
                  • MD5 SHA1 SHA512 SSDEEP

                  Qt5SvgKso.dll

                  • Path C:\Users\Admin\AppData\Local\Temp\wps\~e579664\CONTROL\office6\Qt5SvgKso.dll
                  • Size 359KB
                  • SHA256 dfbcba58ce097a2fd3a5df4465ddecb13a1cdf5800e3bc4755170aaf25749725
                  • MD5 SHA1 SHA512 SSDEEP

                  Qt5WidgetsKso.dll

                  • Path C:\Users\Admin\AppData\Local\Temp\wps\~e579664\CONTROL\office6\Qt5WidgetsKso.dll
                  • Size 4.4MB
                  • SHA256 0bfe39d7de0c08f8c60d746167777954575f626d041bc7c3faccaa7ef6ceb2fc
                  • MD5 SHA1 SHA512 SSDEEP

                  Qt5WinExtrasKso.dll

                  • Path C:\Users\Admin\AppData\Local\Temp\wps\~e579664\CONTROL\office6\Qt5WinExtrasKso.dll
                  • Size 388KB
                  • SHA256 e6ee77a78ec2b374acc9757670e4f295948171d300fb2bf2d3e4fa702aa4f844
                  • MD5 SHA1 SHA512 SSDEEP

                  kpacketui.dll

                  • Path C:\Users\Admin\AppData\Local\Temp\wps\~e579664\CONTROL\office6\kpacketui.dll
                  • Size 1.5MB
                  • SHA256 de0ec3555a4764225803f50088971ea77e2499db9be1834efb35ae77d43e6fe3
                  • MD5 SHA1 SHA512 SSDEEP

                  msvcp140.dll

                  • Path C:\Users\Admin\AppData\Local\Temp\wps\~e579664\CONTROL\office6\msvcp140.dll
                  • Size 439KB
                  • SHA256 02c7259456eac8cbadfb460377ba68e98282400c7a4a9d0bf49b3313ef6d554d
                  • MD5 SHA1 SHA512 SSDEEP

                  qsvgicon.dll

                  • Path C:\Users\Admin\AppData\Local\Temp\wps\~e579664\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\~e579664\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\~e579664\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\~e579664\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\~e579664\CONTROL\office6\ucrtbase.dll
                  • Size 1.1MB
                  • SHA256 2ad9a105a9caa24f41e7b1a6f303c07e6faeceaf3aaf43ebd644d9d5746a4359
                  • MD5 SHA1 SHA512 SSDEEP

                  vcruntime140.dll

                  • Path C:\Users\Admin\AppData\Local\Temp\wps\~e579664\CONTROL\office6\vcruntime140.dll
                  • Size 81KB
                  • SHA256 ff9c1123cff493a8f5eacb91115611b6c1c808b30c82af9b6f388c0ef1f6b46d
                  • MD5 SHA1 SHA512 SSDEEP

                  product.dat

                  • Path C:\Users\Admin\AppData\Local\Temp\wps\~e579664\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 219ff362aba8285d17f43e85f88a803704e5043868c3ecc2c4d56ff56dbd03e2
                  • MD5 SHA1 SHA512 SSDEEP

                  wpssetup.log

                  • Path C:\Users\Admin\AppData\Roaming\kingsoft\office6\log\setup\wpssetup.log
                  • Size 28KB
                  • SHA256 365d91b011e96639ed15d5eec395841e3fd7545fcf90606aaa728f6e917d6204
                  • MD5 SHA1 SHA512 SSDEEP

                  wpssetup.log

                  • Path C:\Users\Admin\AppData\Roaming\kingsoft\office6\log\setup\wpssetup.log
                  • Size 45KB
                  • SHA256 235a97a4a66034b7ab5de953c4a3dec738208dc561cb0119dfcad31c8dd4dc20
                  • MD5 SHA1 SHA512 SSDEEP

                  metadata-2

                  • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
                  • Size 12.8MB
                  • SHA256 fec1fa28d9cbdb71ff7c4e81e55224406f0c3d04fd95e757fc4169977f00bd20
                  • MD5 SHA1 SHA512 SSDEEP

                  {b4ba7c7f-adca-4687-ae91-4d052a1544ee}_OnDiskSnapshotProp

                  • Path \??\Volume{5d656fd9-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{b4ba7c7f-adca-4687-ae91-4d052a1544ee}_OnDiskSnapshotProp
                  • Size 6KB
                  • SHA256 dbcccca25b36d04b624ca8c1bdd4d3385cf5819860b2933753fe2ec749feec38
                  • MD5 SHA1 SHA512 SSDEEP

                  memory/1880-696-0x000000000F7A0000-0x000000000F95A000-memory.dmp

                  memory/1880-697-0x00000000004B0000-0x0000000000537000-memory.dmp

                  memory/3744-685-0x00000000004B0000-0x0000000000537000-memory.dmp

                  memory/4156-680-0x0000000000BE0000-0x0000000000C67000-memory.dmp

                  memory/4156-686-0x0000000000BE0000-0x0000000000C67000-memory.dmp