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Analysis
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max time kernel
150s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
25/12/2023, 15:22
Static task
static1
Behavioral task
behavioral1
Sample
28f8806a43c81ade4aded3b5adc6cde0.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
28f8806a43c81ade4aded3b5adc6cde0.exe
Resource
win10v2004-20231215-en
General
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Target
28f8806a43c81ade4aded3b5adc6cde0.exe
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Size
512KB
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MD5
28f8806a43c81ade4aded3b5adc6cde0
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SHA1
acd51b1accf5f3a27c5cf7568e976fca4e3b9dcf
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SHA256
0150beb4a08d1cb109618ffea4545dd9a8727021133fe7fb784c7ab81cbbe8a7
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SHA512
7511497bf86e6ba03a83bd75252c97161b368967b5cd768a99708cca9c573b74f5c50b103216c23e43ab1569c78b036942079f6602b4a7b913962d0fb4eb9e1e
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SSDEEP
6144:1VY0W0sVVZ/dkq5BCoFaJ2i5Lf24C07N5OvSLTUF6pQxI6Upe2cBnTu19bcodj6c:1gDhdkq5BCoC5LfWSLTUQpr2Zu19Qm5f
Malware Config
Signatures
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Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1" rsqfldlerk.exe -
Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" rsqfldlerk.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" rsqfldlerk.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" rsqfldlerk.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" rsqfldlerk.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1" rsqfldlerk.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1" rsqfldlerk.exe -
Disables RegEdit via registry modification 1 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" rsqfldlerk.exe -
Executes dropped EXE 5 IoCs
pid Process 772 rsqfldlerk.exe 2932 bdeycwbvgczffia.exe 2284 yatqpiic.exe 2584 mipgqcmbrrkll.exe 2940 yatqpiic.exe -
Loads dropped DLL 5 IoCs
pid Process 952 28f8806a43c81ade4aded3b5adc6cde0.exe 952 28f8806a43c81ade4aded3b5adc6cde0.exe 952 28f8806a43c81ade4aded3b5adc6cde0.exe 952 28f8806a43c81ade4aded3b5adc6cde0.exe 772 rsqfldlerk.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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description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirstRunDisabled = "1" rsqfldlerk.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1" rsqfldlerk.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1" rsqfldlerk.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" rsqfldlerk.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" rsqfldlerk.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" rsqfldlerk.exe -
Adds Run key to start application 2 TTPs 3 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\eswsygeg = "rsqfldlerk.exe" bdeycwbvgczffia.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\bezeljfv = "bdeycwbvgczffia.exe" bdeycwbvgczffia.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ = "mipgqcmbrrkll.exe" bdeycwbvgczffia.exe -
Enumerates connected drives 3 TTPs 64 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\p: rsqfldlerk.exe File opened (read-only) \??\l: yatqpiic.exe File opened (read-only) \??\j: rsqfldlerk.exe File opened (read-only) \??\e: yatqpiic.exe File opened (read-only) \??\j: yatqpiic.exe File opened (read-only) \??\n: yatqpiic.exe File opened (read-only) \??\y: rsqfldlerk.exe File opened (read-only) \??\z: yatqpiic.exe File opened (read-only) \??\i: rsqfldlerk.exe File opened (read-only) \??\a: yatqpiic.exe File opened (read-only) \??\m: yatqpiic.exe File opened (read-only) \??\o: yatqpiic.exe File opened (read-only) \??\t: yatqpiic.exe File opened (read-only) \??\y: yatqpiic.exe File opened (read-only) \??\m: yatqpiic.exe File opened (read-only) \??\a: rsqfldlerk.exe File opened (read-only) \??\b: rsqfldlerk.exe File opened (read-only) \??\k: rsqfldlerk.exe File opened (read-only) \??\l: rsqfldlerk.exe File opened (read-only) \??\i: yatqpiic.exe File opened (read-only) \??\k: yatqpiic.exe File opened (read-only) \??\q: yatqpiic.exe File opened (read-only) \??\a: yatqpiic.exe File opened (read-only) \??\x: yatqpiic.exe File opened (read-only) \??\e: yatqpiic.exe File opened (read-only) \??\g: yatqpiic.exe File opened (read-only) \??\p: yatqpiic.exe File opened (read-only) \??\o: rsqfldlerk.exe File opened (read-only) \??\z: rsqfldlerk.exe File opened (read-only) \??\x: rsqfldlerk.exe File opened (read-only) \??\s: yatqpiic.exe File opened (read-only) \??\j: yatqpiic.exe File opened (read-only) \??\e: rsqfldlerk.exe File opened (read-only) \??\h: rsqfldlerk.exe File opened (read-only) \??\t: rsqfldlerk.exe File opened (read-only) \??\v: rsqfldlerk.exe File opened (read-only) \??\b: yatqpiic.exe File opened (read-only) \??\w: yatqpiic.exe File opened (read-only) \??\n: rsqfldlerk.exe File opened (read-only) \??\g: rsqfldlerk.exe File opened (read-only) \??\w: rsqfldlerk.exe File opened (read-only) \??\k: yatqpiic.exe File opened (read-only) \??\t: yatqpiic.exe File opened (read-only) \??\v: yatqpiic.exe File opened (read-only) \??\s: rsqfldlerk.exe File opened (read-only) \??\y: yatqpiic.exe File opened (read-only) \??\h: yatqpiic.exe File opened (read-only) \??\u: yatqpiic.exe File opened (read-only) \??\q: rsqfldlerk.exe File opened (read-only) \??\u: rsqfldlerk.exe File opened (read-only) \??\h: yatqpiic.exe File opened (read-only) \??\p: yatqpiic.exe File opened (read-only) \??\q: yatqpiic.exe File opened (read-only) \??\m: rsqfldlerk.exe File opened (read-only) \??\r: rsqfldlerk.exe File opened (read-only) \??\b: yatqpiic.exe File opened (read-only) \??\l: yatqpiic.exe File opened (read-only) \??\o: yatqpiic.exe File opened (read-only) \??\s: yatqpiic.exe File opened (read-only) \??\v: yatqpiic.exe File opened (read-only) \??\x: yatqpiic.exe File opened (read-only) \??\w: yatqpiic.exe File opened (read-only) \??\z: yatqpiic.exe File opened (read-only) \??\r: yatqpiic.exe -
Modifies WinLogon 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\SFCScan = "0" rsqfldlerk.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\SFCDisable = "4294967197" rsqfldlerk.exe -
AutoIT Executable 5 IoCs
AutoIT scripts compiled to PE executables.
resource yara_rule behavioral1/memory/952-0-0x0000000000400000-0x0000000000496000-memory.dmp autoit_exe behavioral1/files/0x0007000000014667-36.dat autoit_exe behavioral1/files/0x0007000000014667-30.dat autoit_exe behavioral1/files/0x000b0000000141a2-25.dat autoit_exe behavioral1/files/0x000a000000013a71-20.dat autoit_exe -
Drops file in System32 directory 9 IoCs
description ioc Process File created C:\Windows\SysWOW64\rsqfldlerk.exe 28f8806a43c81ade4aded3b5adc6cde0.exe File opened for modification C:\Windows\SysWOW64\bdeycwbvgczffia.exe 28f8806a43c81ade4aded3b5adc6cde0.exe File created C:\Windows\SysWOW64\yatqpiic.exe 28f8806a43c81ade4aded3b5adc6cde0.exe File opened for modification C:\Windows\SysWOW64\msvbvm60.dll rsqfldlerk.exe File opened for modification C:\Windows\SysWOW64\rsqfldlerk.exe 28f8806a43c81ade4aded3b5adc6cde0.exe File created C:\Windows\SysWOW64\bdeycwbvgczffia.exe 28f8806a43c81ade4aded3b5adc6cde0.exe File opened for modification C:\Windows\SysWOW64\yatqpiic.exe 28f8806a43c81ade4aded3b5adc6cde0.exe File created C:\Windows\SysWOW64\mipgqcmbrrkll.exe 28f8806a43c81ade4aded3b5adc6cde0.exe File opened for modification C:\Windows\SysWOW64\mipgqcmbrrkll.exe 28f8806a43c81ade4aded3b5adc6cde0.exe -
Drops file in Program Files directory 22 IoCs
description ioc Process File opened for modification \??\c:\Program Files\SuspendCompare.doc.exe yatqpiic.exe File opened for modification C:\Program Files\SuspendCompare.nal yatqpiic.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLV.DOC.exe yatqpiic.exe File opened for modification \??\c:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLV.DOC.exe yatqpiic.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLV.nal yatqpiic.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLV.nal yatqpiic.exe File opened for modification C:\Program Files\SuspendCompare.doc.exe yatqpiic.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLN.DOC.exe yatqpiic.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLN.nal yatqpiic.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLN.DOC.exe yatqpiic.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLN.nal yatqpiic.exe File created \??\c:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLV.DOC.exe yatqpiic.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLV.DOC.exe yatqpiic.exe File created \??\c:\Program Files\SuspendCompare.doc.exe yatqpiic.exe File created \??\c:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLN.DOC.exe yatqpiic.exe File opened for modification \??\c:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLN.DOC.exe yatqpiic.exe File opened for modification \??\c:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLN.DOC.exe yatqpiic.exe File opened for modification C:\Program Files\SuspendCompare.nal yatqpiic.exe File opened for modification \??\c:\Program Files\SuspendCompare.doc.exe yatqpiic.exe File opened for modification C:\Program Files\SuspendCompare.doc.exe yatqpiic.exe File created \??\c:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLN.DOC.exe yatqpiic.exe File opened for modification \??\c:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLV.DOC.exe yatqpiic.exe -
Drops file in Windows directory 5 IoCs
description ioc Process File opened for modification C:\Windows\mydoc.rtf 28f8806a43c81ade4aded3b5adc6cde0.exe File opened for modification C:\Windows\mydoc.rtf WINWORD.EXE File created C:\Windows\~$mydoc.rtf WINWORD.EXE File opened for modification C:\Windows\Debug\WIA\wiatrace.log WINWORD.EXE File opened for modification C:\Windows\~$mydoc.rtf 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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description ioc Process Key created \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\Toolbar WINWORD.EXE Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes" WINWORD.EXE Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000" 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 created \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\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 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 MHTML Editor\shell\edit\ = "&Edit" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\command WINWORD.EXE Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\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-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55" WINWORD.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1" 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-1-5-21-3627615824-4061627003-3019543961-1000\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\COMMAND WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\ = "&Edit" 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 HTML Editor\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\WINWORD.EXE\" /n \"%1\"" WINWORD.EXE Key deleted \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit 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 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-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Internet Explorer\MenuExt WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell 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 Key deleted \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell 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 HTML Editor WINWORD.EXE -
Modifies registry class 64 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.reg\ = "txtfile" rsqfldlerk.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 WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}\InprocServer32 WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Word\shell\edit\command WINWORD.EXE Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Word\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000 WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\MSPub.exe 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 Word\shell\edit WINWORD.EXE Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0045005800430045004c00460069006c00650073003e00560069006a00710042006f006600280059003800270077002100460049006400310067004c00510020002f0064006400650000000000 WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Publisher\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\MSPUB.EXE\" %1" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Print\command WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Word WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\shell\edit\ddeexec\ = "[open(\"%1\")]" WINWORD.EXE Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\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\.mht\OpenWithList\Microsoft Publisher WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\WinWord.exe 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 Publisher WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Word\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\WINWORD.EXE\" /n \"%1\"" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.vbs rsqfldlerk.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.vbs\ = "txtfile" rsqfldlerk.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}\Old Icon\htmlfile WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\Com3 = "2EC2B12B449538E352CEBAA2329CD7C5" 28f8806a43c81ade4aded3b5adc6cde0.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\Com4 = "7EFCFF8E4F5B856F9040D75D7DE7BDEFE630584567356332D798" 28f8806a43c81ade4aded3b5adc6cde0.exe Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Edit\command WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}\Old Icon 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 Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\WinWord.exe\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000 WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\Com1 = "32412D7B9D5783596A3076D470532CDB7CF564AD" 28f8806a43c81ade4aded3b5adc6cde0.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\DefaultIcon\ = "\"%1\"" WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe\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 Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\MSPub.exe\shell\edit\ = "&Open" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.reg rsqfldlerk.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597} 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\.htm\OpenWithList\Excel.exe\shell\edit\ddeexec\topic WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Word WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\ = "&Open" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.wsh rsqfldlerk.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 Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0045005800430045004c00460069006c00650073003e00560069006a00710042006f006600280059003800270077002100460049006400310067004c00510020002f0064006400650000000000 WINWORD.EXE Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Publisher\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b005000750062005000720069006d006100720079003e00520024006e0075006a0053005700460065003f007d0061004c00720052007000390078004000570020002500310000000000 WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\MSPub.exe\shell\edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\MSPUB.EXE\" %1" WINWORD.EXE Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Publisher\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b005000750062005000720069006d006100720079003e00520024006e0075006a0053005700460065003f007d0061004c00720052007000390078004000570020002500310000000000 WINWORD.EXE Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Word\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000 WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\command WINWORD.EXE Key created \REGISTRY\MACHINE\Software\Classes\CLV.Classes 28f8806a43c81ade4aded3b5adc6cde0.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Edit\command\ = "\"C:\\Program Files (x86)\\Microsoft Office\\Office14\\msohtmed.exe\" %1" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Print\command WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe\shell\edit\ddeexec\application\ = "Excel" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.bat rsqfldlerk.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Print\ = "&Print" WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shellex\IconHandler\ = "{42042206-2D85-11D3-8CFF-005004838597}" WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\StartCom1 = "E7F468B6FF1A22DBD179D0A98A7C9114" 28f8806a43c81ade4aded3b5adc6cde0.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.WSF\ = "txtfile" rsqfldlerk.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Word\shell\edit\ = "&Open" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\ddeexec WINWORD.EXE -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2484 WINWORD.EXE -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 952 28f8806a43c81ade4aded3b5adc6cde0.exe 952 28f8806a43c81ade4aded3b5adc6cde0.exe 952 28f8806a43c81ade4aded3b5adc6cde0.exe 952 28f8806a43c81ade4aded3b5adc6cde0.exe 952 28f8806a43c81ade4aded3b5adc6cde0.exe 952 28f8806a43c81ade4aded3b5adc6cde0.exe 952 28f8806a43c81ade4aded3b5adc6cde0.exe 952 28f8806a43c81ade4aded3b5adc6cde0.exe 2584 mipgqcmbrrkll.exe 2584 mipgqcmbrrkll.exe 2584 mipgqcmbrrkll.exe 2584 mipgqcmbrrkll.exe 2584 mipgqcmbrrkll.exe 2584 mipgqcmbrrkll.exe 772 rsqfldlerk.exe 772 rsqfldlerk.exe 772 rsqfldlerk.exe 772 rsqfldlerk.exe 772 rsqfldlerk.exe 2932 bdeycwbvgczffia.exe 2932 bdeycwbvgczffia.exe 2932 bdeycwbvgczffia.exe 2932 bdeycwbvgczffia.exe 2932 bdeycwbvgczffia.exe 2284 yatqpiic.exe 2284 yatqpiic.exe 2284 yatqpiic.exe 2284 yatqpiic.exe 2940 yatqpiic.exe 2940 yatqpiic.exe 2940 yatqpiic.exe 2940 yatqpiic.exe 2932 bdeycwbvgczffia.exe 2584 mipgqcmbrrkll.exe 2584 mipgqcmbrrkll.exe 2932 bdeycwbvgczffia.exe 2584 mipgqcmbrrkll.exe 2584 mipgqcmbrrkll.exe 2932 bdeycwbvgczffia.exe 2584 mipgqcmbrrkll.exe 2584 mipgqcmbrrkll.exe 2932 bdeycwbvgczffia.exe 2584 mipgqcmbrrkll.exe 2932 bdeycwbvgczffia.exe 2584 mipgqcmbrrkll.exe 2932 bdeycwbvgczffia.exe 2584 mipgqcmbrrkll.exe 2584 mipgqcmbrrkll.exe 2584 mipgqcmbrrkll.exe 2584 mipgqcmbrrkll.exe 2932 bdeycwbvgczffia.exe 2932 bdeycwbvgczffia.exe 2584 mipgqcmbrrkll.exe 2584 mipgqcmbrrkll.exe 2584 mipgqcmbrrkll.exe 2584 mipgqcmbrrkll.exe 2932 bdeycwbvgczffia.exe 2932 bdeycwbvgczffia.exe 2584 mipgqcmbrrkll.exe 2584 mipgqcmbrrkll.exe 2584 mipgqcmbrrkll.exe 2584 mipgqcmbrrkll.exe 2932 bdeycwbvgczffia.exe 2932 bdeycwbvgczffia.exe -
Suspicious use of FindShellTrayWindow 18 IoCs
pid Process 952 28f8806a43c81ade4aded3b5adc6cde0.exe 952 28f8806a43c81ade4aded3b5adc6cde0.exe 952 28f8806a43c81ade4aded3b5adc6cde0.exe 2932 bdeycwbvgczffia.exe 772 rsqfldlerk.exe 2284 yatqpiic.exe 2932 bdeycwbvgczffia.exe 772 rsqfldlerk.exe 2284 yatqpiic.exe 2932 bdeycwbvgczffia.exe 772 rsqfldlerk.exe 2284 yatqpiic.exe 2584 mipgqcmbrrkll.exe 2584 mipgqcmbrrkll.exe 2584 mipgqcmbrrkll.exe 2940 yatqpiic.exe 2940 yatqpiic.exe 2940 yatqpiic.exe -
Suspicious use of SendNotifyMessage 18 IoCs
pid Process 952 28f8806a43c81ade4aded3b5adc6cde0.exe 952 28f8806a43c81ade4aded3b5adc6cde0.exe 952 28f8806a43c81ade4aded3b5adc6cde0.exe 2932 bdeycwbvgczffia.exe 772 rsqfldlerk.exe 2284 yatqpiic.exe 2932 bdeycwbvgczffia.exe 772 rsqfldlerk.exe 2284 yatqpiic.exe 2932 bdeycwbvgczffia.exe 772 rsqfldlerk.exe 2284 yatqpiic.exe 2584 mipgqcmbrrkll.exe 2584 mipgqcmbrrkll.exe 2584 mipgqcmbrrkll.exe 2940 yatqpiic.exe 2940 yatqpiic.exe 2940 yatqpiic.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2484 WINWORD.EXE 2484 WINWORD.EXE -
Suspicious use of WriteProcessMemory 28 IoCs
description pid Process procid_target PID 952 wrote to memory of 772 952 28f8806a43c81ade4aded3b5adc6cde0.exe 23 PID 952 wrote to memory of 772 952 28f8806a43c81ade4aded3b5adc6cde0.exe 23 PID 952 wrote to memory of 772 952 28f8806a43c81ade4aded3b5adc6cde0.exe 23 PID 952 wrote to memory of 772 952 28f8806a43c81ade4aded3b5adc6cde0.exe 23 PID 952 wrote to memory of 2932 952 28f8806a43c81ade4aded3b5adc6cde0.exe 16 PID 952 wrote to memory of 2932 952 28f8806a43c81ade4aded3b5adc6cde0.exe 16 PID 952 wrote to memory of 2932 952 28f8806a43c81ade4aded3b5adc6cde0.exe 16 PID 952 wrote to memory of 2932 952 28f8806a43c81ade4aded3b5adc6cde0.exe 16 PID 952 wrote to memory of 2284 952 28f8806a43c81ade4aded3b5adc6cde0.exe 21 PID 952 wrote to memory of 2284 952 28f8806a43c81ade4aded3b5adc6cde0.exe 21 PID 952 wrote to memory of 2284 952 28f8806a43c81ade4aded3b5adc6cde0.exe 21 PID 952 wrote to memory of 2284 952 28f8806a43c81ade4aded3b5adc6cde0.exe 21 PID 952 wrote to memory of 2584 952 28f8806a43c81ade4aded3b5adc6cde0.exe 19 PID 952 wrote to memory of 2584 952 28f8806a43c81ade4aded3b5adc6cde0.exe 19 PID 952 wrote to memory of 2584 952 28f8806a43c81ade4aded3b5adc6cde0.exe 19 PID 952 wrote to memory of 2584 952 28f8806a43c81ade4aded3b5adc6cde0.exe 19 PID 772 wrote to memory of 2940 772 rsqfldlerk.exe 17 PID 772 wrote to memory of 2940 772 rsqfldlerk.exe 17 PID 772 wrote to memory of 2940 772 rsqfldlerk.exe 17 PID 772 wrote to memory of 2940 772 rsqfldlerk.exe 17 PID 952 wrote to memory of 2484 952 28f8806a43c81ade4aded3b5adc6cde0.exe 18 PID 952 wrote to memory of 2484 952 28f8806a43c81ade4aded3b5adc6cde0.exe 18 PID 952 wrote to memory of 2484 952 28f8806a43c81ade4aded3b5adc6cde0.exe 18 PID 952 wrote to memory of 2484 952 28f8806a43c81ade4aded3b5adc6cde0.exe 18 PID 2484 wrote to memory of 2888 2484 WINWORD.EXE 36 PID 2484 wrote to memory of 2888 2484 WINWORD.EXE 36 PID 2484 wrote to memory of 2888 2484 WINWORD.EXE 36 PID 2484 wrote to memory of 2888 2484 WINWORD.EXE 36
Processes
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C:\Windows\SysWOW64\bdeycwbvgczffia.exebdeycwbvgczffia.exe1⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2932
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C:\Windows\SysWOW64\yatqpiic.exeC:\Windows\system32\yatqpiic.exe1⤵
- Executes dropped EXE
- Enumerates connected drives
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2940
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C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE"C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Windows\mydoc.rtf"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:2484 -
C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122882⤵PID:2888
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C:\Windows\SysWOW64\mipgqcmbrrkll.exemipgqcmbrrkll.exe1⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2584
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C:\Windows\SysWOW64\yatqpiic.exeyatqpiic.exe1⤵
- Executes dropped EXE
- Enumerates connected drives
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2284
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C:\Windows\SysWOW64\rsqfldlerk.exersqfldlerk.exe1⤵
- Modifies visibility of file extensions in Explorer
- Modifies visiblity of hidden/system files in Explorer
- Windows security bypass
- Disables RegEdit via registry modification
- Executes dropped EXE
- Loads dropped DLL
- Windows security modification
- Enumerates connected drives
- Modifies WinLogon
- Drops file in System32 directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:772
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C:\Users\Admin\AppData\Local\Temp\28f8806a43c81ade4aded3b5adc6cde0.exe"C:\Users\Admin\AppData\Local\Temp\28f8806a43c81ade4aded3b5adc6cde0.exe"1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:952
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Defense Evasion
Hide Artifacts
2Hidden Files and Directories
2Impair Defenses
2Disable or Modify Tools
2Modify Registry
7Replay Monitor
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Downloads
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Filesize
20KB
MD5d284edcd3c82f2bd1029e253aee9ea8b
SHA1a0dace3f68b0917cf5cd2ea29c3f126a22f3236d
SHA256046e91ad723921d8aecfb023c9109b8073b61051f2c4b74275db8ac2f947d650
SHA51267fd628eda4d4206099a96a277395e8b12b5ae971baaa3758c092d1ccd26e2f8ffb4eb1b8e9e73b570d3fddf12cb0ccc269235b3bb8285226983aeef1c8f1d30
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Filesize
512KB
MD56bc7d4f37e044c69e099b97ad262f041
SHA1f7fad4ea51d893f1972ee3db9d8abd71389c015d
SHA25674c0ff904cb303c97307e25130fb40c818c85e1f779dc8454944601141711e83
SHA5123bdbd635c0d2b246e9dd2792e7aca908dc34ba2bab71a10e10cfa19fc9e4368433498efadfec0afaa75d97663853a4d083ca33f311840135b9254876b90f7a92
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Filesize
512KB
MD55e81e85dff0dbb81eb65a32167114a98
SHA1b842ec53e954a8d7f4072ee33f664192e3f41210
SHA256ceeeea963effe15048a3dec3a4a9011b075588302c6a6d66f642e0fb90e60e33
SHA51265f76f5044544c1866bfcfef29f339104d2ba5ec1370f3a091c3ef39a2b1a904c6bcbf6c390938d9ae372eed7fddf0998cfe18b042a1298bdf6a7b070d821894
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Filesize
381KB
MD530aec9e0b33fbd99234328357879f812
SHA13c9d37139d4ccfe2b694afba9633170d0f510a92
SHA25615aad0daaaeea2f1eb8d19a8999f42844b2885d6bef949f6787feba7dad46563
SHA5122060f2cc8c90181dd0a9965f0ff3a94aece08c82c4a68454846f66778bc60dade3ba5ddc38be57311ff4a7bd78217b89a9cd09837eee4b5d9893277299dad415