Overview
overview
8Static
static
8Mir3Bot.dll
windows7-x64
8Mir3Bot.dll
windows10-2004-x64
8Readme-˵.html
windows7-x64
1Readme-˵.html
windows10-2004-x64
1TeYou.dll
windows7-x64
1TeYou.dll
windows10-2004-x64
1eyou.dll
windows7-x64
1eyou.dll
windows10-2004-x64
1ͼ�...�.docx
windows7-x64
4ͼ�...�.docx
windows10-2004-x64
1�...��.exe
windows7-x64
1�...��.exe
windows10-2004-x64
1�...�.docx
windows7-x64
4�...�.docx
windows10-2004-x64
1¼.exe
windows7-x64
1¼.exe
windows10-2004-x64
1滻�...r3.exe
windows7-x64
8滻�...r3.exe
windows10-2004-x64
8Analysis
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max time kernel
119s -
max time network
46s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
07-11-2022 11:12
Behavioral task
behavioral1
Sample
Mir3Bot.dll
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
Mir3Bot.dll
Resource
win10v2004-20220901-en
Behavioral task
behavioral3
Sample
Readme-˵.html
Resource
win7-20220812-en
Behavioral task
behavioral4
Sample
Readme-˵.html
Resource
win10v2004-20220901-en
Behavioral task
behavioral5
Sample
TeYou.dll
Resource
win7-20220901-en
Behavioral task
behavioral6
Sample
TeYou.dll
Resource
win10v2004-20220812-en
Behavioral task
behavioral7
Sample
eyou.dll
Resource
win7-20220901-en
Behavioral task
behavioral8
Sample
eyou.dll
Resource
win10v2004-20220812-en
Behavioral task
behavioral9
Sample
ͼʹý˵.docx
Resource
win7-20220812-en
Behavioral task
behavioral10
Sample
ͼʹý˵.docx
Resource
win10v2004-20220812-en
Behavioral task
behavioral11
Sample
Ұװ.exe
Resource
win7-20220812-en
Behavioral task
behavioral12
Sample
Ұװ.exe
Resource
win10v2004-20220812-en
Behavioral task
behavioral13
Sample
3ֹ.docx
Resource
win7-20220812-en
Behavioral task
behavioral14
Sample
3ֹ.docx
Resource
win10v2004-20220812-en
Behavioral task
behavioral15
Sample
¼.exe
Resource
win7-20220812-en
Behavioral task
behavioral16
Sample
¼.exe
Resource
win10v2004-20220812-en
Behavioral task
behavioral17
Sample
滻ϷĿ¼ͬļmir3.dat/Mir3.exe
Resource
win7-20220812-en
Behavioral task
behavioral18
Sample
滻ϷĿ¼ͬļmir3.dat/Mir3.exe
Resource
win10v2004-20220812-en
General
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Target
ͼʹý˵.docx
-
Size
886KB
-
MD5
e915a76cd5b321828cb73805cbe15651
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SHA1
7fac9980012ada1583210194aaece0d4928654cc
-
SHA256
8479545663a966c410a8d47f24e55a860efc9d07a1af3e15ea4819ae5a36b8cc
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SHA512
3c65a5529a1d19432eaaecc404cf30f9e1da37615080a3da96b02e10fae24a1d6ae5489ab7caa91dfa866896aee86d1ced06d41e8bd26af62e4fb2b07ef8c6c4
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SSDEEP
12288:ouHm352toOXcB8rOwFL0GHrwU1E4VWBuvXsgCoYhQkQ5/pN:ouGpr4OZq31E4VWAv8g/Y6k0n
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 (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\ = "&Edit" WINWORD.EXE Key deleted \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit WINWORD.EXE Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Toolbar WINWORD.EXE Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote WINWORD.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor WINWORD.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1" 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 WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell WINWORD.EXE Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel WINWORD.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000" WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\ = "&Edit" WINWORD.EXE Key deleted \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 HTML Editor\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\WINWORD.EXE\" /n \"%1\"" WINWORD.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes" WINWORD.EXE Key created \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\MenuExt WINWORD.EXE Key created \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 Set value (int) \REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55" WINWORD.EXE Key deleted \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell 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\edit\command WINWORD.EXE Set value (data) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000 WINWORD.EXE Key created \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\shell\edit\command WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit WINWORD.EXE Set value (data) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000 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 HTML Editor\shell\edit WINWORD.EXE Key deleted \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor WINWORD.EXE -
Modifies registry class 64 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\ddeexec\application WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}\Old Icon\mhtmlfile WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\ddeexec\ = "[open(\"%1\")]" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Edit\command WINWORD.EXE Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Word\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000 WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\EXCEL.EXE\" /dde" WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\ddeexec\topic\ = "system" WINWORD.EXE Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Print\command WINWORD.EXE Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0045005800430045004c00460069006c00650073003e00560069006a00710042006f006600280059003800270077002100460049006400310067004c00510020002f0064006400650000000000 WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\ = "&Open" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\ddeexec WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe\shell\edit\ddeexec\topic WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\MSPub.exe\shell\edit\command WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\ShellEx WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit\ddeexec\topic\ = "system" WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\ddeexec\ = "[open(\"%1\")]" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Publisher\shell\edit\command WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Word 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 Publisher\shell\edit WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\command WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Word\shell\edit\ = "&Open" WINWORD.EXE Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\MSPub.exe\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b005000750062005000720069006d006100720079003e00520024006e0075006a0053005700460065003f007d0061004c00720052007000390078004000570020002500310000000000 WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\ddeexec\application WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Publisher\shell\edit\command WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}\Version\14 WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.htm WINWORD.EXE Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Edit\command WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\WinWord.exe\shell\edit\command WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe\shell\edit\ddeexec\application WINWORD.EXE Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Publisher\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b005000750062005000720069006d006100720079003e00520024006e0075006a0053005700460065003f007d0061004c00720052007000390078004000570020002500310000000000 WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\MSPub.exe\shell\edit WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\WinWord.exe\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\WINWORD.EXE\" /n \"%1\"" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Print WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe\shell\edit\ = "&Open" WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\MSPub.exe\shell\edit\ = "&Open" WINWORD.EXE Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\MSPub.exe\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b005000750062005000720069006d006100720079003e00520024006e0075006a0053005700460065003f007d0061004c00720052007000390078004000570020002500310000000000 WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Print\ = "&Print" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\MSPub.exe 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\.mht\OpenWithList\WinWord.exe WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}\Version WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shellex\IconHandler WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Publisher\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\MSPUB.EXE\" %1" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Publisher\shell\edit WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\DefaultIcon WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\MSPub.exe\shell\edit WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Word\shell\edit\command WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit\ddeexec\application WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\MSPub.exe\shell\edit\command WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\msohtmed.exe\" %1" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Print WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\ddeexec\topic\ = "system" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\ddeexec\topic WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe\shell\edit\ddeexec\ = "[open(\"%1\")]" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}\Old Icon\htmlfile WINWORD.EXE Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Edit WINWORD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 1208 WINWORD.EXE -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1208 WINWORD.EXE 1208 WINWORD.EXE -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1208 wrote to memory of 748 1208 WINWORD.EXE 30 PID 1208 wrote to memory of 748 1208 WINWORD.EXE 30 PID 1208 wrote to memory of 748 1208 WINWORD.EXE 30 PID 1208 wrote to memory of 748 1208 WINWORD.EXE 30
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\ͼʹý˵.docx"1⤵
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1208 -
C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122882⤵PID:748
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