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Analysis
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max time kernel
143s -
max time network
125s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
31/12/2023, 04:45
Static task
static1
Behavioral task
behavioral1
Sample
28b84dca448ab58fa3a35940a125f7d4.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
28b84dca448ab58fa3a35940a125f7d4.exe
Resource
win10v2004-20231215-en
General
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Target
28b84dca448ab58fa3a35940a125f7d4.exe
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Size
512KB
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MD5
28b84dca448ab58fa3a35940a125f7d4
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SHA1
9ce6b74321a985ee2ca0888147eab15796a6c013
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SHA256
6e8742ca1f6c692bfa9933281637d47aaf08b77909a51629fcfa60d87a1b4e1b
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SHA512
d019b108fab6c3b87a8cfae2f78e29288a14f0842686ec0bc4388109d8cafc0444c5763858c72208848846e5338e5780f0254160793b10245df4066922dadeda
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SSDEEP
6144:1VY0W0sVVZ/dkq5BCoFaJ2i5Lf24C07N5OvSLTUF6pQxI6Upe2cBnTu19bcodj6H:1gDhdkq5BCoC5LfWSLTUQpr2Zu19Qm5g
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-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1" rhavxjrtpu.exe -
Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" rhavxjrtpu.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" rhavxjrtpu.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" rhavxjrtpu.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" rhavxjrtpu.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1" rhavxjrtpu.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1" rhavxjrtpu.exe -
Disables RegEdit via registry modification 1 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" rhavxjrtpu.exe -
Executes dropped EXE 5 IoCs
pid Process 2784 rhavxjrtpu.exe 2652 xwojwzaozegffgs.exe 2796 stdhtsyj.exe 2264 blyqlfwiheetf.exe 2640 stdhtsyj.exe -
Loads dropped DLL 5 IoCs
pid Process 2116 28b84dca448ab58fa3a35940a125f7d4.exe 2116 28b84dca448ab58fa3a35940a125f7d4.exe 2116 28b84dca448ab58fa3a35940a125f7d4.exe 2116 28b84dca448ab58fa3a35940a125f7d4.exe 2784 rhavxjrtpu.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\AntiVirusDisableNotify = "1" rhavxjrtpu.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" rhavxjrtpu.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" rhavxjrtpu.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirstRunDisabled = "1" rhavxjrtpu.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusOverride = "1" rhavxjrtpu.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\FirewallOverride = "1" rhavxjrtpu.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\hjdutsdj = "rhavxjrtpu.exe" xwojwzaozegffgs.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\iqczpiuh = "xwojwzaozegffgs.exe" xwojwzaozegffgs.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ = "blyqlfwiheetf.exe" xwojwzaozegffgs.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) \??\l: stdhtsyj.exe File opened (read-only) \??\p: stdhtsyj.exe File opened (read-only) \??\r: stdhtsyj.exe File opened (read-only) \??\y: stdhtsyj.exe File opened (read-only) \??\a: stdhtsyj.exe File opened (read-only) \??\l: stdhtsyj.exe File opened (read-only) \??\w: stdhtsyj.exe File opened (read-only) \??\e: stdhtsyj.exe File opened (read-only) \??\p: rhavxjrtpu.exe File opened (read-only) \??\x: rhavxjrtpu.exe File opened (read-only) \??\i: stdhtsyj.exe File opened (read-only) \??\e: stdhtsyj.exe File opened (read-only) \??\g: stdhtsyj.exe File opened (read-only) \??\h: stdhtsyj.exe File opened (read-only) \??\z: stdhtsyj.exe File opened (read-only) \??\v: rhavxjrtpu.exe File opened (read-only) \??\w: rhavxjrtpu.exe File opened (read-only) \??\z: rhavxjrtpu.exe File opened (read-only) \??\g: stdhtsyj.exe File opened (read-only) \??\i: stdhtsyj.exe File opened (read-only) \??\v: stdhtsyj.exe File opened (read-only) \??\o: stdhtsyj.exe File opened (read-only) \??\i: rhavxjrtpu.exe File opened (read-only) \??\u: rhavxjrtpu.exe File opened (read-only) \??\o: stdhtsyj.exe File opened (read-only) \??\h: rhavxjrtpu.exe File opened (read-only) \??\o: rhavxjrtpu.exe File opened (read-only) \??\q: stdhtsyj.exe File opened (read-only) \??\t: stdhtsyj.exe File opened (read-only) \??\a: rhavxjrtpu.exe File opened (read-only) \??\n: stdhtsyj.exe File opened (read-only) \??\t: stdhtsyj.exe File opened (read-only) \??\m: stdhtsyj.exe File opened (read-only) \??\u: stdhtsyj.exe File opened (read-only) \??\b: rhavxjrtpu.exe File opened (read-only) \??\g: rhavxjrtpu.exe File opened (read-only) \??\n: rhavxjrtpu.exe File opened (read-only) \??\q: rhavxjrtpu.exe File opened (read-only) \??\m: stdhtsyj.exe File opened (read-only) \??\r: rhavxjrtpu.exe File opened (read-only) \??\b: stdhtsyj.exe File opened (read-only) \??\s: stdhtsyj.exe File opened (read-only) \??\l: rhavxjrtpu.exe File opened (read-only) \??\y: rhavxjrtpu.exe File opened (read-only) \??\h: stdhtsyj.exe File opened (read-only) \??\u: stdhtsyj.exe File opened (read-only) \??\v: stdhtsyj.exe File opened (read-only) \??\w: stdhtsyj.exe File opened (read-only) \??\r: stdhtsyj.exe File opened (read-only) \??\x: stdhtsyj.exe File opened (read-only) \??\k: stdhtsyj.exe File opened (read-only) \??\j: rhavxjrtpu.exe File opened (read-only) \??\k: rhavxjrtpu.exe File opened (read-only) \??\m: rhavxjrtpu.exe File opened (read-only) \??\t: rhavxjrtpu.exe File opened (read-only) \??\j: stdhtsyj.exe File opened (read-only) \??\x: stdhtsyj.exe File opened (read-only) \??\s: stdhtsyj.exe File opened (read-only) \??\z: stdhtsyj.exe File opened (read-only) \??\a: stdhtsyj.exe File opened (read-only) \??\n: stdhtsyj.exe File opened (read-only) \??\s: rhavxjrtpu.exe File opened (read-only) \??\b: stdhtsyj.exe File opened (read-only) \??\p: stdhtsyj.exe -
Modifies WinLogon 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\SFCScan = "0" rhavxjrtpu.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\SFCDisable = "4294967197" rhavxjrtpu.exe -
AutoIT Executable 2 IoCs
AutoIT scripts compiled to PE executables.
resource yara_rule behavioral1/memory/2116-0-0x0000000000400000-0x0000000000496000-memory.dmp autoit_exe behavioral1/files/0x0009000000012266-5.dat autoit_exe -
Drops file in System32 directory 9 IoCs
description ioc Process File created C:\Windows\SysWOW64\rhavxjrtpu.exe 28b84dca448ab58fa3a35940a125f7d4.exe File opened for modification C:\Windows\SysWOW64\rhavxjrtpu.exe 28b84dca448ab58fa3a35940a125f7d4.exe File created C:\Windows\SysWOW64\stdhtsyj.exe 28b84dca448ab58fa3a35940a125f7d4.exe File opened for modification C:\Windows\SysWOW64\stdhtsyj.exe 28b84dca448ab58fa3a35940a125f7d4.exe File created C:\Windows\SysWOW64\xwojwzaozegffgs.exe 28b84dca448ab58fa3a35940a125f7d4.exe File opened for modification C:\Windows\SysWOW64\xwojwzaozegffgs.exe 28b84dca448ab58fa3a35940a125f7d4.exe File created C:\Windows\SysWOW64\blyqlfwiheetf.exe 28b84dca448ab58fa3a35940a125f7d4.exe File opened for modification C:\Windows\SysWOW64\blyqlfwiheetf.exe 28b84dca448ab58fa3a35940a125f7d4.exe File opened for modification C:\Windows\SysWOW64\msvbvm60.dll rhavxjrtpu.exe -
Drops file in Program Files directory 15 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLV.DOC.exe stdhtsyj.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLV.DOC.exe stdhtsyj.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLV.nal stdhtsyj.exe File created \??\c:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLN.DOC.exe stdhtsyj.exe File opened for modification \??\c:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLN.DOC.exe stdhtsyj.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLN.nal stdhtsyj.exe File opened for modification \??\c:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLV.DOC.exe stdhtsyj.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLN.nal stdhtsyj.exe File opened for modification \??\c:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLN.DOC.exe stdhtsyj.exe File created \??\c:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLV.DOC.exe stdhtsyj.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLN.DOC.exe stdhtsyj.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLN.DOC.exe stdhtsyj.exe File created \??\c:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLN.DOC.exe stdhtsyj.exe File opened for modification \??\c:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLV.DOC.exe stdhtsyj.exe File opened for modification C:\Program Files (x86)\Microsoft Office\Office14\1033\PROTTPLV.nal stdhtsyj.exe -
Drops file in Windows directory 5 IoCs
description ioc Process File opened for modification C:\Windows\mydoc.rtf 28b84dca448ab58fa3a35940a125f7d4.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 Set value (str) \REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\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 MHTML Editor\shell\edit WINWORD.EXE Set value (str) \REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105" 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 HTML Editor WINWORD.EXE Set value (data) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\command\command = 7800620027004200560035002100210021002100210021002100210021004d004b004b0053006b0057004f0052004400460069006c00650073003e00620069002400540021005600210030005a003d007b0050006b00300076006d007e0041005a00750020002f006e002000220025003100220000000000 WINWORD.EXE Key created \REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote 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\edit WINWORD.EXE Set value (str) \REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes" WINWORD.EXE Set value (int) \REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\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\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 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 (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor\shell\edit\ = "&Edit" WINWORD.EXE Key created \REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Internet Explorer\Toolbar WINWORD.EXE Set value (int) \REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\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\edit 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 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\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 Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell\edit\ = "&Edit" WINWORD.EXE Key created \REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Internet Explorer\MenuExt WINWORD.EXE Key created \REGISTRY\USER\S-1-5-21-928733405-3780110381-2966456290-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default HTML Editor 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 MHTML Editor WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Internet Explorer\Default MHTML Editor\shell WINWORD.EXE -
Modifies registry class 64 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Word\shell\edit\command WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\StartCom1 = "E7866BC6FE1B22DDD10FD1D48A7D9160" 28b84dca448ab58fa3a35940a125f7d4.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Word\shell\edit WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\ddeexec WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Word 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\.mht\OpenWithList\MSPub.exe\shell\edit WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.vbs\ = "txtfile" rhavxjrtpu.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Publisher\shell\edit\command 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\.htm\OpenWithList\MSPub.exe\shell\edit\command WINWORD.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 Publisher WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Edit\ = "&Edit" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Word WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\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 Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\Com4 = "7E88FF8B4F2982699134D7217E92BDE4E143594267426243D7E9" 28b84dca448ab58fa3a35940a125f7d4.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.wsh rhavxjrtpu.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}\Version WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\ddeexec\application\ = "Excel" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\MSPub.exe WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit\command WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\StartCom2 = "1849C70915E1DBB1B9BB7C92ECE234BA" 28b84dca448ab58fa3a35940a125f7d4.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 Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\WinWord.exe WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Microsoft Excel\shell\edit WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\ShellEx 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\Microsoft Excel\shell\edit\ddeexec\topic WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe\shell\edit\ddeexec\application WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\Com3 = "2EB1B02E479539EA52CAB9D1339CD7CC" 28b84dca448ab58fa3a35940a125f7d4.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}\InprocServer32\ = "C:\\Program Files (x86)\\Microsoft Office\\Office14\\msohevi.dll" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Excel.exe WINWORD.EXE Key deleted \REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\shell\Print 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\CLV.Classes\Com2 = "6BBDF9CAF962F193840C3A4B869A39E5B3FC02F14316033FE1C842E709A9" 28b84dca448ab58fa3a35940a125f7d4.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.wsc rhavxjrtpu.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Print\ = "&Print" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht\OpenWithList\Excel.exe\shell\edit\command WINWORD.EXE Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Edit\ = "&Edit" 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\shell\edit WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.mht WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.htm\OpenWithList\Microsoft Excel\shell\edit\ddeexec\topic 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 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\.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\Wow6432Node\CLSID\{42042206-2D85-11D3-8CFF-005004838597}\InprocServer32 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 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\.htm\OpenWithList\Excel.exe\shell\edit\ddeexec\application\ = "Excel" 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 deleted \REGISTRY\MACHINE\SOFTWARE\Classes\htmlfile\shell\Print\command 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\Excel.exe\shell\edit\ddeexec\topic\ = "system" WINWORD.EXE Key created \REGISTRY\MACHINE\SOFTWARE\Classes\mhtmlfile\DefaultIcon 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\CLV.Classes 28b84dca448ab58fa3a35940a125f7d4.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.bat\ = "txtfile" rhavxjrtpu.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.WSF\ = "txtfile" rhavxjrtpu.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 2036 WINWORD.EXE -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2116 28b84dca448ab58fa3a35940a125f7d4.exe 2116 28b84dca448ab58fa3a35940a125f7d4.exe 2116 28b84dca448ab58fa3a35940a125f7d4.exe 2116 28b84dca448ab58fa3a35940a125f7d4.exe 2116 28b84dca448ab58fa3a35940a125f7d4.exe 2116 28b84dca448ab58fa3a35940a125f7d4.exe 2784 rhavxjrtpu.exe 2784 rhavxjrtpu.exe 2784 rhavxjrtpu.exe 2784 rhavxjrtpu.exe 2784 rhavxjrtpu.exe 2116 28b84dca448ab58fa3a35940a125f7d4.exe 2116 28b84dca448ab58fa3a35940a125f7d4.exe 2652 xwojwzaozegffgs.exe 2652 xwojwzaozegffgs.exe 2796 stdhtsyj.exe 2652 xwojwzaozegffgs.exe 2652 xwojwzaozegffgs.exe 2796 stdhtsyj.exe 2796 stdhtsyj.exe 2796 stdhtsyj.exe 2652 xwojwzaozegffgs.exe 2264 blyqlfwiheetf.exe 2264 blyqlfwiheetf.exe 2264 blyqlfwiheetf.exe 2264 blyqlfwiheetf.exe 2264 blyqlfwiheetf.exe 2264 blyqlfwiheetf.exe 2652 xwojwzaozegffgs.exe 2640 stdhtsyj.exe 2640 stdhtsyj.exe 2640 stdhtsyj.exe 2640 stdhtsyj.exe 2652 xwojwzaozegffgs.exe 2264 blyqlfwiheetf.exe 2264 blyqlfwiheetf.exe 2652 xwojwzaozegffgs.exe 2264 blyqlfwiheetf.exe 2264 blyqlfwiheetf.exe 2652 xwojwzaozegffgs.exe 2264 blyqlfwiheetf.exe 2264 blyqlfwiheetf.exe 2652 xwojwzaozegffgs.exe 2264 blyqlfwiheetf.exe 2264 blyqlfwiheetf.exe 2652 xwojwzaozegffgs.exe 2264 blyqlfwiheetf.exe 2264 blyqlfwiheetf.exe 2652 xwojwzaozegffgs.exe 2264 blyqlfwiheetf.exe 2264 blyqlfwiheetf.exe 2652 xwojwzaozegffgs.exe 2264 blyqlfwiheetf.exe 2264 blyqlfwiheetf.exe 2652 xwojwzaozegffgs.exe 2264 blyqlfwiheetf.exe 2264 blyqlfwiheetf.exe 2652 xwojwzaozegffgs.exe 2264 blyqlfwiheetf.exe 2264 blyqlfwiheetf.exe 2652 xwojwzaozegffgs.exe 2264 blyqlfwiheetf.exe 2264 blyqlfwiheetf.exe 2652 xwojwzaozegffgs.exe -
Suspicious use of FindShellTrayWindow 18 IoCs
pid Process 2116 28b84dca448ab58fa3a35940a125f7d4.exe 2116 28b84dca448ab58fa3a35940a125f7d4.exe 2116 28b84dca448ab58fa3a35940a125f7d4.exe 2784 rhavxjrtpu.exe 2784 rhavxjrtpu.exe 2784 rhavxjrtpu.exe 2652 xwojwzaozegffgs.exe 2652 xwojwzaozegffgs.exe 2652 xwojwzaozegffgs.exe 2796 stdhtsyj.exe 2796 stdhtsyj.exe 2796 stdhtsyj.exe 2264 blyqlfwiheetf.exe 2264 blyqlfwiheetf.exe 2264 blyqlfwiheetf.exe 2640 stdhtsyj.exe 2640 stdhtsyj.exe 2640 stdhtsyj.exe -
Suspicious use of SendNotifyMessage 18 IoCs
pid Process 2116 28b84dca448ab58fa3a35940a125f7d4.exe 2116 28b84dca448ab58fa3a35940a125f7d4.exe 2116 28b84dca448ab58fa3a35940a125f7d4.exe 2784 rhavxjrtpu.exe 2784 rhavxjrtpu.exe 2784 rhavxjrtpu.exe 2652 xwojwzaozegffgs.exe 2652 xwojwzaozegffgs.exe 2652 xwojwzaozegffgs.exe 2796 stdhtsyj.exe 2796 stdhtsyj.exe 2796 stdhtsyj.exe 2264 blyqlfwiheetf.exe 2264 blyqlfwiheetf.exe 2264 blyqlfwiheetf.exe 2640 stdhtsyj.exe 2640 stdhtsyj.exe 2640 stdhtsyj.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2036 WINWORD.EXE 2036 WINWORD.EXE -
Suspicious use of WriteProcessMemory 28 IoCs
description pid Process procid_target PID 2116 wrote to memory of 2784 2116 28b84dca448ab58fa3a35940a125f7d4.exe 19 PID 2116 wrote to memory of 2784 2116 28b84dca448ab58fa3a35940a125f7d4.exe 19 PID 2116 wrote to memory of 2784 2116 28b84dca448ab58fa3a35940a125f7d4.exe 19 PID 2116 wrote to memory of 2784 2116 28b84dca448ab58fa3a35940a125f7d4.exe 19 PID 2116 wrote to memory of 2652 2116 28b84dca448ab58fa3a35940a125f7d4.exe 21 PID 2116 wrote to memory of 2652 2116 28b84dca448ab58fa3a35940a125f7d4.exe 21 PID 2116 wrote to memory of 2652 2116 28b84dca448ab58fa3a35940a125f7d4.exe 21 PID 2116 wrote to memory of 2652 2116 28b84dca448ab58fa3a35940a125f7d4.exe 21 PID 2116 wrote to memory of 2796 2116 28b84dca448ab58fa3a35940a125f7d4.exe 23 PID 2116 wrote to memory of 2796 2116 28b84dca448ab58fa3a35940a125f7d4.exe 23 PID 2116 wrote to memory of 2796 2116 28b84dca448ab58fa3a35940a125f7d4.exe 23 PID 2116 wrote to memory of 2796 2116 28b84dca448ab58fa3a35940a125f7d4.exe 23 PID 2116 wrote to memory of 2264 2116 28b84dca448ab58fa3a35940a125f7d4.exe 22 PID 2116 wrote to memory of 2264 2116 28b84dca448ab58fa3a35940a125f7d4.exe 22 PID 2116 wrote to memory of 2264 2116 28b84dca448ab58fa3a35940a125f7d4.exe 22 PID 2116 wrote to memory of 2264 2116 28b84dca448ab58fa3a35940a125f7d4.exe 22 PID 2784 wrote to memory of 2640 2784 rhavxjrtpu.exe 26 PID 2784 wrote to memory of 2640 2784 rhavxjrtpu.exe 26 PID 2784 wrote to memory of 2640 2784 rhavxjrtpu.exe 26 PID 2784 wrote to memory of 2640 2784 rhavxjrtpu.exe 26 PID 2116 wrote to memory of 2036 2116 28b84dca448ab58fa3a35940a125f7d4.exe 29 PID 2116 wrote to memory of 2036 2116 28b84dca448ab58fa3a35940a125f7d4.exe 29 PID 2116 wrote to memory of 2036 2116 28b84dca448ab58fa3a35940a125f7d4.exe 29 PID 2116 wrote to memory of 2036 2116 28b84dca448ab58fa3a35940a125f7d4.exe 29 PID 2036 wrote to memory of 2576 2036 WINWORD.EXE 36 PID 2036 wrote to memory of 2576 2036 WINWORD.EXE 36 PID 2036 wrote to memory of 2576 2036 WINWORD.EXE 36 PID 2036 wrote to memory of 2576 2036 WINWORD.EXE 36
Processes
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C:\Users\Admin\AppData\Local\Temp\28b84dca448ab58fa3a35940a125f7d4.exe"C:\Users\Admin\AppData\Local\Temp\28b84dca448ab58fa3a35940a125f7d4.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:2116 -
C:\Windows\SysWOW64\rhavxjrtpu.exerhavxjrtpu.exe2⤵
- 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:2784 -
C:\Windows\SysWOW64\stdhtsyj.exeC:\Windows\system32\stdhtsyj.exe3⤵
- Executes dropped EXE
- Enumerates connected drives
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2640
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C:\Windows\SysWOW64\xwojwzaozegffgs.exexwojwzaozegffgs.exe2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2652
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C:\Windows\SysWOW64\blyqlfwiheetf.exeblyqlfwiheetf.exe2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2264
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C:\Windows\SysWOW64\stdhtsyj.exestdhtsyj.exe2⤵
- Executes dropped EXE
- Enumerates connected drives
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2796
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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"2⤵
- Drops file in Windows directory
- Modifies Internet Explorer settings
- Modifies registry class
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2036 -
C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122883⤵PID:2576
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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
MD55e1bb6b97f7f714324f518189e4ea9be
SHA173be57396cb173f3aebf54c41536bf28404a6f75
SHA2569c7decb339a9bbdb401191e38e66ca9f2079651ce4a602d311d4c6d263157abe
SHA5129875c2000c085f485f5b8031ff1d49cf36e2f02ea7b11d201486af87508321b2ab749c81ce90c087e7b8cf91f9cc3e01297a601ca0b740d300dfb9bace6b137d