Analysis
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max time kernel
118s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20240220-en -
resource tags
arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system -
submitted
14-03-2024 18:50
Behavioral task
behavioral1
Sample
Version 2.8.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
Version 2.8.exe
Resource
win10v2004-20231215-en
General
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Target
Version 2.8.exe
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Size
223KB
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MD5
77a0989f046d5404700debc97727ca2b
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SHA1
d0bdfdc67862e0bfa491d5d4a3313382a7921625
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SHA256
99b88ce97064536c370e630245018b15bf87c0c1113e2c4c95bfb7dc1078b647
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SHA512
f918e3bf1d488cb77f06ede3d565396b8a6391f372e79fd6d148e1afec311143332bd91cb6d3f05fd6b348d40bfd4ae02adc79e20c6031aaa08c1d29d5b83aa9
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SSDEEP
6144:EU9r9SAYFCtntIVprUPvEefILCrSK3FK+Z:EUDYFCtntIVqPvCLCrSK1K+Z
Malware Config
Extracted
C:\Users\Admin\Desktop\read_it.txt
Signatures
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Chaos
Ransomware family first seen in June 2021.
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Chaos Ransomware 3 IoCs
Processes:
resource yara_rule behavioral1/memory/2924-0-0x0000000000DF0000-0x0000000000E2E000-memory.dmp family_chaos C:\Users\Admin\AppData\Roaming\svchost.exe family_chaos behavioral1/memory/3024-8-0x0000000001000000-0x000000000103E000-memory.dmp family_chaos -
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
Processes:
bcdedit.exebcdedit.exepid process 2024 bcdedit.exe 2016 bcdedit.exe -
Processes:
wbadmin.exepid process 2228 wbadmin.exe -
Drops startup file 3 IoCs
Processes:
svchost.exedescription ioc process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.url svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\desktop.ini svchost.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\read_it.txt svchost.exe -
Executes dropped EXE 1 IoCs
Processes:
svchost.exepid process 3024 svchost.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Drops desktop.ini file(s) 34 IoCs
Processes:
svchost.exedescription ioc process File opened for modification C:\Users\Admin\Favorites\Links for United States\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Accessibility\Desktop.ini svchost.exe File opened for modification C:\Users\Public\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Public\Music\Sample Music\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Libraries\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\SendTo\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Maintenance\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\Contacts\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Downloads\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\desktop.ini svchost.exe File opened for modification C:\Users\Public\Pictures\Sample Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Public\Music\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Public\Videos\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Pictures\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Saved Games\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\System Tools\Desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Administrative Tools\desktop.ini svchost.exe File opened for modification C:\Users\Public\Documents\desktop.ini svchost.exe File opened for modification C:\Users\Public\Videos\Sample Videos\desktop.ini svchost.exe File opened for modification C:\Users\Public\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Links\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Searches\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Desktop\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Music\desktop.ini svchost.exe File opened for modification F:\$RECYCLE.BIN\S-1-5-21-2721934792-624042501-2768869379-1000\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Videos\desktop.ini svchost.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar\desktop.ini svchost.exe File opened for modification C:\Users\Admin\Favorites\Links\desktop.ini svchost.exe -
Sets desktop wallpaper using registry 2 TTPs 2 IoCs
Processes:
svchost.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\83jjtw4ho.jpg" svchost.exe Set value (str) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\Pictures\\My Wallpaper.jpg" svchost.exe -
Drops file in Windows directory 1 IoCs
Processes:
WINWORD.EXEdescription ioc process File opened for modification C:\Windows\Debug\WIA\wiatrace.log WINWORD.EXE -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Office loads VBA resources, possible macro or embedded object present
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Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
Processes:
vssadmin.exepid process 2116 vssadmin.exe -
Processes:
WINWORD.EXEdescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\ = "&Edit" WINWORD.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\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 HTML Editor\shell\edit WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit WINWORD.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\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 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 Key deleted \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\COMMAND WINWORD.EXE Key deleted \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 WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\command 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-1-5-21-2721934792-624042501-2768869379-1000\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 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 HTML Editor\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000 WINWORD.EXE Key deleted \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\COMMAND WINWORD.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\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 Set value (int) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\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 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 (data) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000 WINWORD.EXE Set value (str) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes" WINWORD.EXE Key created \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor WINWORD.EXE Key created \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Internet Explorer\Toolbar WINWORD.EXE Key created \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Internet Explorer\MenuExt WINWORD.EXE -
Modifies registry class 64 IoCs
Processes:
WINWORD.EXEdescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe\shell\edit\ddeexec\application\ = "Excel" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Print\command WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}\Old Icon\mhtmlfile WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\WinWord.exe WINWORD.EXE Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\MSPub.exe\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b005000750062005000720069006d006100720079003e00520024006e0075006a0053005700460065003f007d0061004c00720052007000390078004000570020002500310000000000 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 WINWORD.EXE Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\WinWord.exe\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000 WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\ddeexec\application\ = "Excel" 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\.mht\OpenWithList\Microsoft Excel WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\MSPub.exe WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Print WINWORD.EXE Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Print\command WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Word WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\ddeexec\application WINWORD.EXE Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Publisher\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b005000750062005000720069006d006100720079003e00520024006e0075006a0053005700460065003f007d0061004c00720052007000390078004000570020002500310000000000 WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\ddeexec 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 WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Print\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\msohtmed.exe\" /p %1" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\ShellEx 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\.htm\OpenWithList\Microsoft Publisher WINWORD.EXE Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Print WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\WinWord.exe\shell\edit\command WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\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\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}\Version WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Edit\command WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe\shell\edit\ddeexec\topic\ = "system" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.htm 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\.htm\OpenWithList\Microsoft Publisher\shell\edit WINWORD.EXE Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\WinWord.exe\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000 WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597} WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}\InprocServer32 WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit\ddeexec\application\ = "Excel" 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\mhtmlfile WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Edit\ = "&Edit" WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\DefaultIcon\ = "\"%1\"" WINWORD.EXE Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Print WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit\ddeexec\application WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe\shell\edit\ddeexec WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit\ddeexec\ = "[open(\"%1\")]" WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Print\ = "&Print" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel WINWORD.EXE Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Print\command WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Print\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\msohtmed.exe\" /p %1" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\ShellEx WINWORD.EXE Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Edit WINWORD.EXE Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Word\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000 WINWORD.EXE Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Edit WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\ddeexec\topic WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\MSPub.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\.mht\OpenWithList\Microsoft Publisher\shell\edit\command WINWORD.EXE Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Publisher\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b005000750062005000720069006d006100720079003e00520024006e0075006a0053005700460065003f007d0061004c00720052007000390078004000570020002500310000000000 WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\MSPub.exe\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\MSPUB.EXE\" %1" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Edit\command WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\MSPub.exe\shell\edit WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\ddeexec\application WINWORD.EXE -
Opens file in notepad (likely ransom note) 1 IoCs
Processes:
NOTEPAD.EXEpid process 1416 NOTEPAD.EXE -
Suspicious behavior: AddClipboardFormatListener 2 IoCs
Processes:
svchost.exeWINWORD.EXEpid process 3024 svchost.exe 568 WINWORD.EXE -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
Version 2.8.exesvchost.exepid process 2924 Version 2.8.exe 2924 Version 2.8.exe 3024 svchost.exe 3024 svchost.exe 3024 svchost.exe 3024 svchost.exe -
Suspicious use of AdjustPrivilegeToken 48 IoCs
Processes:
Version 2.8.exesvchost.exevssvc.exeWMIC.exewbengine.exedescription pid process Token: SeDebugPrivilege 2924 Version 2.8.exe Token: SeDebugPrivilege 3024 svchost.exe Token: SeBackupPrivilege 2720 vssvc.exe Token: SeRestorePrivilege 2720 vssvc.exe Token: SeAuditPrivilege 2720 vssvc.exe Token: SeIncreaseQuotaPrivilege 2480 WMIC.exe Token: SeSecurityPrivilege 2480 WMIC.exe Token: SeTakeOwnershipPrivilege 2480 WMIC.exe Token: SeLoadDriverPrivilege 2480 WMIC.exe Token: SeSystemProfilePrivilege 2480 WMIC.exe Token: SeSystemtimePrivilege 2480 WMIC.exe Token: SeProfSingleProcessPrivilege 2480 WMIC.exe Token: SeIncBasePriorityPrivilege 2480 WMIC.exe Token: SeCreatePagefilePrivilege 2480 WMIC.exe Token: SeBackupPrivilege 2480 WMIC.exe Token: SeRestorePrivilege 2480 WMIC.exe Token: SeShutdownPrivilege 2480 WMIC.exe Token: SeDebugPrivilege 2480 WMIC.exe Token: SeSystemEnvironmentPrivilege 2480 WMIC.exe Token: SeRemoteShutdownPrivilege 2480 WMIC.exe Token: SeUndockPrivilege 2480 WMIC.exe Token: SeManageVolumePrivilege 2480 WMIC.exe Token: 33 2480 WMIC.exe Token: 34 2480 WMIC.exe Token: 35 2480 WMIC.exe Token: SeIncreaseQuotaPrivilege 2480 WMIC.exe Token: SeSecurityPrivilege 2480 WMIC.exe Token: SeTakeOwnershipPrivilege 2480 WMIC.exe Token: SeLoadDriverPrivilege 2480 WMIC.exe Token: SeSystemProfilePrivilege 2480 WMIC.exe Token: SeSystemtimePrivilege 2480 WMIC.exe Token: SeProfSingleProcessPrivilege 2480 WMIC.exe Token: SeIncBasePriorityPrivilege 2480 WMIC.exe Token: SeCreatePagefilePrivilege 2480 WMIC.exe Token: SeBackupPrivilege 2480 WMIC.exe Token: SeRestorePrivilege 2480 WMIC.exe Token: SeShutdownPrivilege 2480 WMIC.exe Token: SeDebugPrivilege 2480 WMIC.exe Token: SeSystemEnvironmentPrivilege 2480 WMIC.exe Token: SeRemoteShutdownPrivilege 2480 WMIC.exe Token: SeUndockPrivilege 2480 WMIC.exe Token: SeManageVolumePrivilege 2480 WMIC.exe Token: 33 2480 WMIC.exe Token: 34 2480 WMIC.exe Token: 35 2480 WMIC.exe Token: SeBackupPrivilege 1924 wbengine.exe Token: SeRestorePrivilege 1924 wbengine.exe Token: SeSecurityPrivilege 1924 wbengine.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
NOTEPAD.EXEpid process 1416 NOTEPAD.EXE -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
WINWORD.EXEpid process 568 WINWORD.EXE 568 WINWORD.EXE -
Suspicious use of WriteProcessMemory 34 IoCs
Processes:
Version 2.8.exesvchost.execmd.execmd.execmd.exeWINWORD.EXEdescription pid process target process PID 2924 wrote to memory of 3024 2924 Version 2.8.exe svchost.exe PID 2924 wrote to memory of 3024 2924 Version 2.8.exe svchost.exe PID 2924 wrote to memory of 3024 2924 Version 2.8.exe svchost.exe PID 3024 wrote to memory of 2056 3024 svchost.exe cmd.exe PID 3024 wrote to memory of 2056 3024 svchost.exe cmd.exe PID 3024 wrote to memory of 2056 3024 svchost.exe cmd.exe PID 2056 wrote to memory of 2116 2056 cmd.exe vssadmin.exe PID 2056 wrote to memory of 2116 2056 cmd.exe vssadmin.exe PID 2056 wrote to memory of 2116 2056 cmd.exe vssadmin.exe PID 2056 wrote to memory of 2480 2056 cmd.exe WMIC.exe PID 2056 wrote to memory of 2480 2056 cmd.exe WMIC.exe PID 2056 wrote to memory of 2480 2056 cmd.exe WMIC.exe PID 3024 wrote to memory of 1176 3024 svchost.exe cmd.exe PID 3024 wrote to memory of 1176 3024 svchost.exe cmd.exe PID 3024 wrote to memory of 1176 3024 svchost.exe cmd.exe PID 1176 wrote to memory of 2024 1176 cmd.exe bcdedit.exe PID 1176 wrote to memory of 2024 1176 cmd.exe bcdedit.exe PID 1176 wrote to memory of 2024 1176 cmd.exe bcdedit.exe PID 1176 wrote to memory of 2016 1176 cmd.exe bcdedit.exe PID 1176 wrote to memory of 2016 1176 cmd.exe bcdedit.exe PID 1176 wrote to memory of 2016 1176 cmd.exe bcdedit.exe PID 3024 wrote to memory of 2208 3024 svchost.exe cmd.exe PID 3024 wrote to memory of 2208 3024 svchost.exe cmd.exe PID 3024 wrote to memory of 2208 3024 svchost.exe cmd.exe PID 2208 wrote to memory of 2228 2208 cmd.exe wbadmin.exe PID 2208 wrote to memory of 2228 2208 cmd.exe wbadmin.exe PID 2208 wrote to memory of 2228 2208 cmd.exe wbadmin.exe PID 3024 wrote to memory of 1416 3024 svchost.exe NOTEPAD.EXE PID 3024 wrote to memory of 1416 3024 svchost.exe NOTEPAD.EXE PID 3024 wrote to memory of 1416 3024 svchost.exe NOTEPAD.EXE PID 568 wrote to memory of 2512 568 WINWORD.EXE splwow64.exe PID 568 wrote to memory of 2512 568 WINWORD.EXE splwow64.exe PID 568 wrote to memory of 2512 568 WINWORD.EXE splwow64.exe PID 568 wrote to memory of 2512 568 WINWORD.EXE splwow64.exe -
Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
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Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\Version 2.8.exe"C:\Users\Admin\AppData\Local\Temp\Version 2.8.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2924 -
C:\Users\Admin\AppData\Roaming\svchost.exe"C:\Users\Admin\AppData\Roaming\svchost.exe"2⤵
- Drops startup file
- Executes dropped EXE
- Drops desktop.ini file(s)
- Sets desktop wallpaper using registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3024 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C vssadmin delete shadows /all /quiet & wmic shadowcopy delete3⤵
- Suspicious use of WriteProcessMemory
PID:2056 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet4⤵
- Interacts with shadow copies
PID:2116 -
C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete4⤵
- Suspicious use of AdjustPrivilegeToken
PID:2480 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no3⤵
- Suspicious use of WriteProcessMemory
PID:1176 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures4⤵
- Modifies boot configuration data using bcdedit
PID:2024 -
C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no4⤵
- Modifies boot configuration data using bcdedit
PID:2016 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C wbadmin delete catalog -quiet3⤵
- Suspicious use of WriteProcessMemory
PID:2208 -
C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet4⤵
- Deletes backup catalog
PID:2228 -
C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Roaming\read_it.txt3⤵
- Opens file in notepad (likely ransom note)
- Suspicious use of FindShellTrayWindow
PID:1416
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2720
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1924
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵PID:2772
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵PID:2216
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C:\Windows\explorer.exe"C:\Windows\explorer.exe"1⤵PID:2960
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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\Documents\Are.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:568 -
C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122882⤵PID:2512
Network
MITRE ATT&CK Enterprise v15
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Downloads
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Filesize
20KB
MD5b16b7ce428e46ed07bb0999e2cbe064b
SHA19cf8cd008878653b7bbd620418aad58e16250f57
SHA256c7f13bf19dcbb52f22605e1bc13c6ddaee1ea26697c2bd870b4b9a2d50563b5e
SHA5122dadc926f44880354608cef2361d15f76d671953cee2968e31610d276edb5c7decb024f98439593689049ae159133aa3140529ae89460c4a44f54d9f4c3f59e8
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Filesize
223KB
MD577a0989f046d5404700debc97727ca2b
SHA1d0bdfdc67862e0bfa491d5d4a3313382a7921625
SHA25699b88ce97064536c370e630245018b15bf87c0c1113e2c4c95bfb7dc1078b647
SHA512f918e3bf1d488cb77f06ede3d565396b8a6391f372e79fd6d148e1afec311143332bd91cb6d3f05fd6b348d40bfd4ae02adc79e20c6031aaa08c1d29d5b83aa9
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Filesize
1KB
MD5ea03cbb2fdf2dc96252b579612602225
SHA1ac9ceff3c368f7409b9a7201f62fa92eded4da51
SHA256e4f0c335d1ffc3ed4a32ae4aee294c9652f67a765fbaaad1f90e0540d25ed565
SHA5121388a3f740f84541f8a8c0298bfe8b71f03d86a71174f97a68edcb4bdca0f467d6823b94314fa54547451c3ec4f6bc2228d74bf7537acf7c2dfb9f5a2d398051