Overview
overview
10Static
static
5F9F8AC1F7...D_.doc
windows7_x64
45F9F8AC1F7...D_.doc
windows10-2004_x64
16B97B3CD2F...et.exe
windows7_x64
16B97B3CD2F...et.exe
windows10-2004_x64
1901FA02FFD...ar.dll
windows7_x64
1901FA02FFD...ar.dll
windows10-2004_x64
1C116CD0832..._2.exe
windows7_x64
10C116CD0832..._2.exe
windows10-2004_x64
10PlugX_3C74...20.dll
windows7_x64
10PlugX_3C74...20.dll
windows10-2004_x64
10originalfi...ae.rtf
windows7_x64
4originalfi...ae.rtf
windows10-2004_x64
1Analysis
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max time kernel
101s -
max time network
50s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
28-05-2022 02:43
Static task
static1
Behavioral task
behavioral1
Sample
5F9F8AC1F749B0637ECA6EF15910BF21_~WINWORD_.doc
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
5F9F8AC1F749B0637ECA6EF15910BF21_~WINWORD_.doc
Resource
win10v2004-20220414-en
Behavioral task
behavioral3
Sample
6B97B3CD2FCFB4B74985143230441463_Gadget.exe
Resource
win7-20220414-en
Behavioral task
behavioral4
Sample
6B97B3CD2FCFB4B74985143230441463_Gadget.exe
Resource
win10v2004-20220414-en
Behavioral task
behavioral5
Sample
901FA02FFD43DE5B2D7C8C6B8C2F6A43_SideBar.dll
Resource
win7-20220414-en
Behavioral task
behavioral6
Sample
901FA02FFD43DE5B2D7C8C6B8C2F6A43_SideBar.dll
Resource
win10v2004-20220414-en
Behavioral task
behavioral7
Sample
C116CD083284CC599C024C3479CA9B70_2.exe
Resource
win7-20220414-en
Behavioral task
behavioral8
Sample
C116CD083284CC599C024C3479CA9B70_2.exe
Resource
win10v2004-20220414-en
Behavioral task
behavioral9
Sample
PlugX_3C74A85C2CF883BD9D4B9F8B9746030F_DW20.dll
Resource
win7-20220414-en
Behavioral task
behavioral10
Sample
PlugX_3C74A85C2CF883BD9D4B9F8B9746030F_DW20.dll
Resource
win10v2004-20220414-en
Behavioral task
behavioral11
Sample
originalfile/PlugX_RTF_dropper_42fba80f105aa53dfbf50aeba2d73cae.rtf
Resource
win7-20220414-en
Behavioral task
behavioral12
Sample
originalfile/PlugX_RTF_dropper_42fba80f105aa53dfbf50aeba2d73cae.rtf
Resource
win10v2004-20220414-en
General
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Target
originalfile/PlugX_RTF_dropper_42fba80f105aa53dfbf50aeba2d73cae.rtf
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Size
507KB
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MD5
42fba80f105aa53dfbf50aeba2d73cae
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SHA1
a49b135a66afba5713936d4758ca5d40f19b9e71
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SHA256
ac7d02465d0b1992809e16aaae2cd779470a99e0860c4d8a2785d97ce988667b
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SHA512
b42b529585da21bae4d36fb1e9b5f2471e77d87505db91f8859068816d355fdd8b4aaaa922512a8a39259b247b9aeaeba92cfb0ab5140122f83dd163b8ed00cf
Malware Config
Signatures
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Drops file in Windows directory 1 IoCs
description ioc Process File opened for modification C:\Windows\Debug\WIA\wiatrace.log WINWORD.EXE -
Office loads VBA resources, possible macro or embedded object present
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description ioc Process Set value (data) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000 WINWORD.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55" WINWORD.EXE Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel WINWORD.EXE Key deleted \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell WINWORD.EXE Set value (str) \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105" WINWORD.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1" WINWORD.EXE Key deleted \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\command WINWORD.EXE Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\MenuExt WINWORD.EXE Key deleted \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\COMMAND WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit WINWORD.EXE Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote WINWORD.EXE Key deleted \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\COMMAND WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\command WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\ = "&Edit" WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\WINWORD.EXE\" /n \"%1\"" WINWORD.EXE Set value (data) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000 WINWORD.EXE Key deleted \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor WINWORD.EXE Set value (str) \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes" WINWORD.EXE Key deleted \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor WINWORD.EXE Key deleted \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell WINWORD.EXE Key deleted \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\WINWORD.EXE\" /n \"%1\"" WINWORD.EXE Key created \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\Toolbar WINWORD.EXE Set value (str) \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\ = "&Edit" WINWORD.EXE -
Modifies registry class 64 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Word WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe\shell\edit\ddeexec WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{1EFB6597-857C-11D1-B16A-00C0F0283628}\ = "ITabs" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Publisher WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\ddeexec\application\ = "Excel" WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DD9DA662-8594-11D1-B16A-00C0F0283628}\TypeLib\Version = "2.0" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{1EFB6597-857C-11D1-B16A-00C0F0283628}\ProxyStubClsid32 WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Edit\ = "&Edit" WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\ddeexec\topic\ = "system" WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{66833FE9-8583-11D1-B16A-00C0F0283628}\ = "IButton" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{8E3867AA-8586-11D1-B16A-00C0F0283628}\TypeLib WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{C74190B8-8589-11D1-B16A-00C0F0283628}\TypeLib WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DD9DA664-8594-11D1-B16A-00C0F0283628}\TypeLib WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2334D2B1-713E-11CF-8AE5-00AA00C00905}\TypeLib WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit\ = "&Open" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2C247F22-8591-11D1-B16A-00C0F0283628}\TypeLib WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{1EFB6595-857C-11D1-B16A-00C0F0283628}\TypeLib\ = "{831FDD16-0C5C-11D2-A9FC-0000F8754DA1}" WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{66833FE9-8583-11D1-B16A-00C0F0283628}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BDD1F051-858B-11D1-B16A-00C0F0283628}\ProxyStubClsid32 WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit\ddeexec\topic WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\WinWord.exe WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{1EFB6595-857C-11D1-B16A-00C0F0283628}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}" WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{1EFB6597-857C-11D1-B16A-00C0F0283628}\TypeLib\Version = "2.0" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F08DF952-8592-11D1-B16A-00C0F0283628}\ProxyStubClsid32 WINWORD.EXE Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0045005800430045004c00460069006c00650073003e00560069006a00710042006f006600280059003800270077002100460049006400310067004c00510020002f0064006400650000000000 WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{C74190B5-8589-11D1-B16A-00C0F0283628}\TypeLib\Version = "2.0" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}\Old Icon WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2334D2B3-713E-11CF-8AE5-00AA00C00905}\ProxyStubClsid32 WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DD9DA660-8594-11D1-B16A-00C0F0283628} WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\ShellEx WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{8E3867A1-8586-11D1-B16A-00C0F0283628}\ProxyStubClsid32 WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DD9DA665-8594-11D1-B16A-00C0F0283628}\TypeLib\Version = "2.0" WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\EXCEL.EXE\" /dde" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{1EFB6597-857C-11D1-B16A-00C0F0283628}\TypeLib WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{35053A21-8589-11D1-B16A-00C0F0283628}\TypeLib\ = "{831FDD16-0C5C-11D2-A9FC-0000F8754DA1}" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2C247F26-8591-11D1-B16A-00C0F0283628} WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{1EFB6595-857C-11D1-B16A-00C0F0283628}\TypeLib WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{66833FE7-8583-11D1-B16A-00C0F0283628}\TypeLib WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{8E3867AA-8586-11D1-B16A-00C0F0283628}\ProxyStubClsid32 WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BDD1F04C-858B-11D1-B16A-00C0F0283628}\TypeLib WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BDD1F055-858B-11D1-B16A-00C0F0283628} WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\ddeexec WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{2334D2B3-713E-11CF-8AE5-00AA00C00905}\TypeLib\ = "{831FDD16-0C5C-11D2-A9FC-0000F8754DA1}" WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{C74190B7-8589-11D1-B16A-00C0F0283628}\TypeLib\Version = "2.0" WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}\InprocServer32\ThreadingModel = "Apartment" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{1EFB6599-857C-11D1-B16A-00C0F0283628} WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{BDD1F04E-858B-11D1-B16A-00C0F0283628}\TypeLib WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\WinWord.exe\shell\edit WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\ddeexec\application WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{35053A20-8589-11D1-B16A-00C0F0283628} WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{66833FED-8583-11D1-B16A-00C0F0283628}\TypeLib\ = "{831FDD16-0C5C-11D2-A9FC-0000F8754DA1}" WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{66833FEB-8583-11D1-B16A-00C0F0283628}\ = "IButtonMenus" WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{DD9DA660-8594-11D1-B16A-00C0F0283628}\ = "IComboItem" WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{F08DF953-8592-11D1-B16A-00C0F0283628}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Publisher WINWORD.EXE Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0045005800430045004c00460069006c00650073003e00560069006a00710042006f006600280059003800270077002100460049006400310067004c00510020002f0064006400650000000000 WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{66833FE7-8583-11D1-B16A-00C0F0283628} WINWORD.EXE Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Edit WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{1EFB6597-857C-11D1-B16A-00C0F0283628}\TypeLib\ = "{831FDD16-0C5C-11D2-A9FC-0000F8754DA1}" WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{1EFB6597-857C-11D1-B16A-00C0F0283628}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{1EFB6599-857C-11D1-B16A-00C0F0283628}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}" WINWORD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 1660 WINWORD.EXE -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 1660 WINWORD.EXE 1660 WINWORD.EXE -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1660 WINWORD.EXE 1660 WINWORD.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1660 wrote to memory of 1732 1660 WINWORD.EXE 27 PID 1660 wrote to memory of 1732 1660 WINWORD.EXE 27 PID 1660 wrote to memory of 1732 1660 WINWORD.EXE 27 PID 1660 wrote to memory of 1732 1660 WINWORD.EXE 27
Processes
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C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE"C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\originalfile\PlugX_RTF_dropper_42fba80f105aa53dfbf50aeba2d73cae.rtf"1⤵
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1660 -
C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122882⤵PID:1732
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