Analysis
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max time kernel
152s -
max time network
143s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
29/10/2022, 06:45
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe
Resource
win7-20220901-en
windows7-x64
27 signatures
150 seconds
Behavioral task
behavioral2
Sample
b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
25 signatures
150 seconds
General
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Target
b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe
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Size
512KB
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MD5
648f8d4d250edbc26eefc0bfdba3dcfb
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SHA1
8e93e054797353fe92755e4a9b9a4287cd2074b3
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SHA256
b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004
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SHA512
cbf26dbfa63c3b3a5d07a7e453a12c9d8be1381c1238729bb7174a71bf3b934e56f2d513cbc989a8e9ba0b3a619a76cc143ca94f20286be7dc8a8185eaaff92d
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SSDEEP
6144:1VY0W0sVVZ/dkq5BCoFaJ2i5Lf24C07N5OvSLTUF6pQxI6Upe2cBnTu19bcodj6u:1gDhdkq5BCoC5LfWSLTUQpr2Zu19Qm5L
Score
10/10
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-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1" bhrbwcycdx.exe -
Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" bhrbwcycdx.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" bhrbwcycdx.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" bhrbwcycdx.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1" bhrbwcycdx.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1" bhrbwcycdx.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" bhrbwcycdx.exe -
Disables RegEdit via registry modification 1 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" bhrbwcycdx.exe -
Executes dropped EXE 5 IoCs
pid Process 1592 bhrbwcycdx.exe 1448 hwxkvvrsppsxnfw.exe 2252 jysxvmuc.exe 3932 ovsecejhyxdwl.exe 2096 jysxvmuc.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.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" bhrbwcycdx.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" bhrbwcycdx.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" bhrbwcycdx.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirstRunDisabled = "1" bhrbwcycdx.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1" bhrbwcycdx.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1" bhrbwcycdx.exe -
Adds Run key to start application 2 TTPs 4 IoCs
description ioc Process Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run hwxkvvrsppsxnfw.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\heboxmxz = "bhrbwcycdx.exe" hwxkvvrsppsxnfw.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\efrkdodm = "hwxkvvrsppsxnfw.exe" hwxkvvrsppsxnfw.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ = "ovsecejhyxdwl.exe" hwxkvvrsppsxnfw.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) \??\w: jysxvmuc.exe File opened (read-only) \??\a: jysxvmuc.exe File opened (read-only) \??\s: bhrbwcycdx.exe File opened (read-only) \??\i: bhrbwcycdx.exe File opened (read-only) \??\x: bhrbwcycdx.exe File opened (read-only) \??\t: jysxvmuc.exe File opened (read-only) \??\f: jysxvmuc.exe File opened (read-only) \??\i: jysxvmuc.exe File opened (read-only) \??\t: jysxvmuc.exe File opened (read-only) \??\a: bhrbwcycdx.exe File opened (read-only) \??\w: bhrbwcycdx.exe File opened (read-only) \??\h: jysxvmuc.exe File opened (read-only) \??\u: jysxvmuc.exe File opened (read-only) \??\z: jysxvmuc.exe File opened (read-only) \??\h: jysxvmuc.exe File opened (read-only) \??\m: bhrbwcycdx.exe File opened (read-only) \??\e: jysxvmuc.exe File opened (read-only) \??\f: jysxvmuc.exe File opened (read-only) \??\o: jysxvmuc.exe File opened (read-only) \??\m: jysxvmuc.exe File opened (read-only) \??\o: jysxvmuc.exe File opened (read-only) \??\v: jysxvmuc.exe File opened (read-only) \??\y: jysxvmuc.exe File opened (read-only) \??\j: bhrbwcycdx.exe File opened (read-only) \??\h: bhrbwcycdx.exe File opened (read-only) \??\k: bhrbwcycdx.exe File opened (read-only) \??\o: bhrbwcycdx.exe File opened (read-only) \??\v: bhrbwcycdx.exe File opened (read-only) \??\x: jysxvmuc.exe File opened (read-only) \??\g: bhrbwcycdx.exe File opened (read-only) \??\p: bhrbwcycdx.exe File opened (read-only) \??\q: bhrbwcycdx.exe File opened (read-only) \??\a: jysxvmuc.exe File opened (read-only) \??\i: jysxvmuc.exe File opened (read-only) \??\n: jysxvmuc.exe File opened (read-only) \??\e: bhrbwcycdx.exe File opened (read-only) \??\k: jysxvmuc.exe File opened (read-only) \??\q: jysxvmuc.exe File opened (read-only) \??\b: bhrbwcycdx.exe File opened (read-only) \??\m: jysxvmuc.exe File opened (read-only) \??\x: jysxvmuc.exe File opened (read-only) \??\r: bhrbwcycdx.exe File opened (read-only) \??\u: bhrbwcycdx.exe File opened (read-only) \??\g: jysxvmuc.exe File opened (read-only) \??\p: jysxvmuc.exe File opened (read-only) \??\r: jysxvmuc.exe File opened (read-only) \??\l: bhrbwcycdx.exe File opened (read-only) \??\j: jysxvmuc.exe File opened (read-only) \??\l: jysxvmuc.exe File opened (read-only) \??\k: jysxvmuc.exe File opened (read-only) \??\y: jysxvmuc.exe File opened (read-only) \??\n: jysxvmuc.exe File opened (read-only) \??\p: jysxvmuc.exe File opened (read-only) \??\b: jysxvmuc.exe File opened (read-only) \??\q: jysxvmuc.exe File opened (read-only) \??\b: jysxvmuc.exe File opened (read-only) \??\e: jysxvmuc.exe File opened (read-only) \??\w: jysxvmuc.exe File opened (read-only) \??\y: bhrbwcycdx.exe File opened (read-only) \??\z: bhrbwcycdx.exe File opened (read-only) \??\v: jysxvmuc.exe File opened (read-only) \??\f: bhrbwcycdx.exe File opened (read-only) \??\g: jysxvmuc.exe File opened (read-only) \??\l: jysxvmuc.exe -
Modifies WinLogon 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\SFCScan = "0" bhrbwcycdx.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\SFCDisable = "4294967197" bhrbwcycdx.exe -
AutoIT Executable 13 IoCs
AutoIT scripts compiled to PE executables.
resource yara_rule behavioral2/memory/636-132-0x0000000000400000-0x0000000000496000-memory.dmp autoit_exe behavioral2/files/0x0003000000022dff-134.dat autoit_exe behavioral2/files/0x0003000000022dff-135.dat autoit_exe behavioral2/files/0x0003000000022e02-138.dat autoit_exe behavioral2/files/0x0002000000022e22-143.dat autoit_exe behavioral2/files/0x0002000000022e22-142.dat autoit_exe behavioral2/files/0x0002000000022e23-146.dat autoit_exe behavioral2/files/0x0002000000022e23-147.dat autoit_exe behavioral2/files/0x0003000000022e02-139.dat autoit_exe behavioral2/files/0x0002000000022e22-150.dat autoit_exe behavioral2/files/0x000d00000001e785-161.dat autoit_exe behavioral2/files/0x000d00000001e785-162.dat autoit_exe behavioral2/files/0x000d00000001e785-163.dat autoit_exe -
Drops file in System32 directory 12 IoCs
description ioc Process File created \??\c:\Windows\SysWOW64\MSDRM\MsoIrmProtector.doc.exe jysxvmuc.exe File opened for modification \??\c:\Windows\SysWOW64\MSDRM\MsoIrmProtector.doc.exe jysxvmuc.exe File created C:\Windows\SysWOW64\bhrbwcycdx.exe b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe File created C:\Windows\SysWOW64\hwxkvvrsppsxnfw.exe b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe File created C:\Windows\SysWOW64\jysxvmuc.exe b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe File opened for modification C:\Windows\SysWOW64\jysxvmuc.exe b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe File created C:\Windows\SysWOW64\ovsecejhyxdwl.exe b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe File opened for modification C:\Windows\SysWOW64\ovsecejhyxdwl.exe b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe File opened for modification C:\Windows\SysWOW64\bhrbwcycdx.exe b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe File opened for modification C:\Windows\SysWOW64\hwxkvvrsppsxnfw.exe b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe File opened for modification C:\Windows\SysWOW64\msvbvm60.dll bhrbwcycdx.exe File opened for modification \??\c:\Windows\SysWOW64\MSDRM\MsoIrmProtector.doc.exe jysxvmuc.exe -
Drops file in Program Files directory 8 IoCs
description ioc Process File opened for modification C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLN.DOC.exe jysxvmuc.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLN.nal jysxvmuc.exe File created \??\c:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLV.DOC.exe jysxvmuc.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLV.DOC.exe jysxvmuc.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLV.DOC.exe jysxvmuc.exe File opened for modification C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLV.nal jysxvmuc.exe File created \??\c:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLN.DOC.exe jysxvmuc.exe File opened for modification \??\c:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLN.DOC.exe jysxvmuc.exe -
Drops file in Windows directory 19 IoCs
description ioc Process File opened for modification \??\c:\Windows\WinSxS\amd64_microsoft-windows-r..t-office-protectors_31bf3856ad364e35_10.0.19041.746_none_ebc47b06544bfaab\MsoIrmProtector.doc.exe jysxvmuc.exe File opened for modification \??\c:\Windows\WinSxS\amd64_microsoft-windows-r..t-office-protectors_31bf3856ad364e35_10.0.19041.746_none_ebc47b06544bfaab\MsoIrmProtector.doc.exe jysxvmuc.exe File created \??\c:\Windows\WinSxS\wow64_microsoft-windows-r..t-office-protectors_31bf3856ad364e35_10.0.19041.1_none_ce10e80fc93afe5c\MsoIrmProtector.doc.exe jysxvmuc.exe File opened for modification \??\c:\Windows\WinSxS\wow64_microsoft-windows-r..t-office-protectors_31bf3856ad364e35_10.0.19041.746_none_f619255888acbca6\MsoIrmProtector.doc.exe jysxvmuc.exe File created \??\c:\Windows\WinSxS\amd64_microsoft-windows-r..t-office-protectors_31bf3856ad364e35_10.0.19041.1_none_c3bc3dbd94da3c61\MsoIrmProtector.doc.exe jysxvmuc.exe File created \??\c:\Windows\WinSxS\amd64_microsoft-windows-r..t-office-protectors_31bf3856ad364e35_10.0.19041.1_none_c3bc3dbd94da3c61\MsoIrmProtector.doc.exe jysxvmuc.exe File opened for modification \??\c:\Windows\WinSxS\amd64_microsoft-windows-r..t-office-protectors_31bf3856ad364e35_10.0.19041.1_none_c3bc3dbd94da3c61\MsoIrmProtector.doc.exe jysxvmuc.exe File created \??\c:\Windows\WinSxS\wow64_microsoft-windows-r..t-office-protectors_31bf3856ad364e35_10.0.19041.1_none_ce10e80fc93afe5c\MsoIrmProtector.doc.exe jysxvmuc.exe File opened for modification \??\c:\Windows\WinSxS\wow64_microsoft-windows-r..t-office-protectors_31bf3856ad364e35_10.0.19041.746_none_f619255888acbca6\MsoIrmProtector.doc.exe jysxvmuc.exe File created \??\c:\Windows\WinSxS\wow64_microsoft-windows-r..t-office-protectors_31bf3856ad364e35_10.0.19041.746_none_f619255888acbca6\MsoIrmProtector.doc.exe jysxvmuc.exe File opened for modification C:\Windows\mydoc.rtf WINWORD.EXE File created C:\Windows\~$mydoc.rtf WINWORD.EXE File created \??\c:\Windows\WinSxS\amd64_microsoft-windows-r..t-office-protectors_31bf3856ad364e35_10.0.19041.746_none_ebc47b06544bfaab\MsoIrmProtector.doc.exe jysxvmuc.exe File created \??\c:\Windows\WinSxS\amd64_microsoft-windows-r..t-office-protectors_31bf3856ad364e35_10.0.19041.746_none_ebc47b06544bfaab\MsoIrmProtector.doc.exe jysxvmuc.exe File opened for modification \??\c:\Windows\WinSxS\wow64_microsoft-windows-r..t-office-protectors_31bf3856ad364e35_10.0.19041.1_none_ce10e80fc93afe5c\MsoIrmProtector.doc.exe jysxvmuc.exe File created \??\c:\Windows\WinSxS\wow64_microsoft-windows-r..t-office-protectors_31bf3856ad364e35_10.0.19041.746_none_f619255888acbca6\MsoIrmProtector.doc.exe jysxvmuc.exe File opened for modification C:\Windows\mydoc.rtf b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe File opened for modification \??\c:\Windows\WinSxS\wow64_microsoft-windows-r..t-office-protectors_31bf3856ad364e35_10.0.19041.1_none_ce10e80fc93afe5c\MsoIrmProtector.doc.exe jysxvmuc.exe File opened for modification \??\c:\Windows\WinSxS\amd64_microsoft-windows-r..t-office-protectors_31bf3856ad364e35_10.0.19041.1_none_c3bc3dbd94da3c61\MsoIrmProtector.doc.exe jysxvmuc.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString WINWORD.EXE -
Enumerates system info in registry 2 TTPs 3 IoCs
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily WINWORD.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU WINWORD.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS WINWORD.EXE -
Modifies registry class 20 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\Com1 = "33412C0B9D5283226D4476D3772F2CDD7DF365A8" b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.WSH\ = "txtfile" bhrbwcycdx.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.WSF\ = "txtfile" bhrbwcycdx.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.vbs bhrbwcycdx.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.reg bhrbwcycdx.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.reg\ = "txtfile" bhrbwcycdx.exe Key created \REGISTRY\MACHINE\Software\Classes\CLV.Classes b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.bat bhrbwcycdx.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\Com2 = "6ABDF9CAFE65F192840F3A4781993E92B38F038D42120248E1BF42E609D4" b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.bat\ = "txtfile" bhrbwcycdx.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.wsf bhrbwcycdx.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.vbs\ = "txtfile" bhrbwcycdx.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\StartCom1 = "E7866BB0FE6621AED178D0A38B0E9060" b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\Com4 = "7EFEFCF84F5A856D9142D75B7DE6BDE5E640583067436242D798" b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\StartCom2 = "1845C60C14E0DAB0B8C07C90EDE534BD" b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.wsh bhrbwcycdx.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.wsc bhrbwcycdx.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.wsc\ = "txtfile" bhrbwcycdx.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000_Classes\Local Settings b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\Com3 = "2FC1B058449438EA52C8BAA633E9D7C5" b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe -
Suspicious behavior: AddClipboardFormatListener 2 IoCs
pid Process 2656 WINWORD.EXE 2656 WINWORD.EXE -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 636 b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe 636 b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe 636 b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe 636 b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe 636 b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe 636 b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe 636 b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe 636 b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe 636 b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe 636 b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe 636 b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe 636 b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe 636 b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe 636 b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe 636 b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe 636 b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe 1592 bhrbwcycdx.exe 1592 bhrbwcycdx.exe 1592 bhrbwcycdx.exe 1592 bhrbwcycdx.exe 1592 bhrbwcycdx.exe 1592 bhrbwcycdx.exe 1592 bhrbwcycdx.exe 1592 bhrbwcycdx.exe 1592 bhrbwcycdx.exe 1592 bhrbwcycdx.exe 2252 jysxvmuc.exe 2252 jysxvmuc.exe 2252 jysxvmuc.exe 2252 jysxvmuc.exe 2252 jysxvmuc.exe 2252 jysxvmuc.exe 2252 jysxvmuc.exe 2252 jysxvmuc.exe 1448 hwxkvvrsppsxnfw.exe 1448 hwxkvvrsppsxnfw.exe 1448 hwxkvvrsppsxnfw.exe 1448 hwxkvvrsppsxnfw.exe 3932 ovsecejhyxdwl.exe 3932 ovsecejhyxdwl.exe 3932 ovsecejhyxdwl.exe 3932 ovsecejhyxdwl.exe 1448 hwxkvvrsppsxnfw.exe 1448 hwxkvvrsppsxnfw.exe 3932 ovsecejhyxdwl.exe 3932 ovsecejhyxdwl.exe 1448 hwxkvvrsppsxnfw.exe 1448 hwxkvvrsppsxnfw.exe 3932 ovsecejhyxdwl.exe 3932 ovsecejhyxdwl.exe 3932 ovsecejhyxdwl.exe 3932 ovsecejhyxdwl.exe 3932 ovsecejhyxdwl.exe 3932 ovsecejhyxdwl.exe 1448 hwxkvvrsppsxnfw.exe 1448 hwxkvvrsppsxnfw.exe 1448 hwxkvvrsppsxnfw.exe 1448 hwxkvvrsppsxnfw.exe 3932 ovsecejhyxdwl.exe 3932 ovsecejhyxdwl.exe 3932 ovsecejhyxdwl.exe 3932 ovsecejhyxdwl.exe 1448 hwxkvvrsppsxnfw.exe 1448 hwxkvvrsppsxnfw.exe -
Suspicious use of FindShellTrayWindow 18 IoCs
pid Process 636 b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe 636 b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe 636 b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe 1592 bhrbwcycdx.exe 1592 bhrbwcycdx.exe 1592 bhrbwcycdx.exe 1448 hwxkvvrsppsxnfw.exe 1448 hwxkvvrsppsxnfw.exe 1448 hwxkvvrsppsxnfw.exe 2252 jysxvmuc.exe 2252 jysxvmuc.exe 2252 jysxvmuc.exe 3932 ovsecejhyxdwl.exe 3932 ovsecejhyxdwl.exe 3932 ovsecejhyxdwl.exe 2096 jysxvmuc.exe 2096 jysxvmuc.exe 2096 jysxvmuc.exe -
Suspicious use of SendNotifyMessage 18 IoCs
pid Process 636 b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe 636 b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe 636 b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe 1592 bhrbwcycdx.exe 1592 bhrbwcycdx.exe 1592 bhrbwcycdx.exe 1448 hwxkvvrsppsxnfw.exe 1448 hwxkvvrsppsxnfw.exe 1448 hwxkvvrsppsxnfw.exe 2252 jysxvmuc.exe 2252 jysxvmuc.exe 2252 jysxvmuc.exe 3932 ovsecejhyxdwl.exe 3932 ovsecejhyxdwl.exe 3932 ovsecejhyxdwl.exe 2096 jysxvmuc.exe 2096 jysxvmuc.exe 2096 jysxvmuc.exe -
Suspicious use of SetWindowsHookEx 7 IoCs
pid Process 2656 WINWORD.EXE 2656 WINWORD.EXE 2656 WINWORD.EXE 2656 WINWORD.EXE 2656 WINWORD.EXE 2656 WINWORD.EXE 2656 WINWORD.EXE -
Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 636 wrote to memory of 1592 636 b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe 83 PID 636 wrote to memory of 1592 636 b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe 83 PID 636 wrote to memory of 1592 636 b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe 83 PID 636 wrote to memory of 1448 636 b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe 84 PID 636 wrote to memory of 1448 636 b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe 84 PID 636 wrote to memory of 1448 636 b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe 84 PID 636 wrote to memory of 2252 636 b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe 85 PID 636 wrote to memory of 2252 636 b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe 85 PID 636 wrote to memory of 2252 636 b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe 85 PID 636 wrote to memory of 3932 636 b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe 86 PID 636 wrote to memory of 3932 636 b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe 86 PID 636 wrote to memory of 3932 636 b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe 86 PID 636 wrote to memory of 2656 636 b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe 87 PID 636 wrote to memory of 2656 636 b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe 87 PID 1592 wrote to memory of 2096 1592 bhrbwcycdx.exe 89 PID 1592 wrote to memory of 2096 1592 bhrbwcycdx.exe 89 PID 1592 wrote to memory of 2096 1592 bhrbwcycdx.exe 89
Processes
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C:\Users\Admin\AppData\Local\Temp\b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe"C:\Users\Admin\AppData\Local\Temp\b76f9a670a906e0b03014700ed435666d51383228262412625305bfd10bb2004.exe"1⤵
- Checks computer location settings
- 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:636 -
C:\Windows\SysWOW64\bhrbwcycdx.exebhrbwcycdx.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
- 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:1592 -
C:\Windows\SysWOW64\jysxvmuc.exeC:\Windows\system32\jysxvmuc.exe3⤵
- Executes dropped EXE
- Enumerates connected drives
- Drops file in System32 directory
- Drops file in Windows directory
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2096
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C:\Windows\SysWOW64\hwxkvvrsppsxnfw.exehwxkvvrsppsxnfw.exe2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1448
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C:\Windows\SysWOW64\jysxvmuc.exejysxvmuc.exe2⤵
- Executes dropped EXE
- Enumerates connected drives
- Drops file in System32 directory
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2252
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C:\Windows\SysWOW64\ovsecejhyxdwl.exeovsecejhyxdwl.exe2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:3932
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C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Windows\mydoc.rtf" /o ""2⤵
- Drops file in Windows directory
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:2656
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Network
MITRE ATT&CK Enterprise v6
Persistence
Hidden Files and Directories
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Defense Evasion
Disabling Security Tools
2Hidden Files and Directories
2Modify Registry
6Replay Monitor
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Downloads
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Filesize
512KB
MD5200067ddb3c9c3e23e2fe2a6c116e66b
SHA110241b20280a57b977853b2beb32abacf8ab5a0a
SHA25687fb0f89be60bebea1f5c1e189719cfa78338bffbbd83bbe5c314ff87bd4e61a
SHA512b74a8f825aa7d07558ca48c6a24350a19770cb17d945c5ba1c4fe8ec097c45f6e37e3f43e35f4680d6e017ed0cb9b2f2e09f828dce59b7a108b22ca4732d6a76
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Filesize
512KB
MD5200067ddb3c9c3e23e2fe2a6c116e66b
SHA110241b20280a57b977853b2beb32abacf8ab5a0a
SHA25687fb0f89be60bebea1f5c1e189719cfa78338bffbbd83bbe5c314ff87bd4e61a
SHA512b74a8f825aa7d07558ca48c6a24350a19770cb17d945c5ba1c4fe8ec097c45f6e37e3f43e35f4680d6e017ed0cb9b2f2e09f828dce59b7a108b22ca4732d6a76
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Filesize
512KB
MD585c1049ad6daebf2e6157ad44408e85a
SHA162257aaa7f1e64d3c46918aaf39031c65bb75bfa
SHA2569300329bc1f92285f172440f891d178775daa387652f3c027ef9244a36fb88d3
SHA51251f7659ac6aba8f8f441361089ec7822f966e05042d047ee3993532f33e2519086a71c866b2d7c4058cd08ea0757f8fb53e86460a3dab97db5ec0f310b4ed175
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Filesize
512KB
MD585c1049ad6daebf2e6157ad44408e85a
SHA162257aaa7f1e64d3c46918aaf39031c65bb75bfa
SHA2569300329bc1f92285f172440f891d178775daa387652f3c027ef9244a36fb88d3
SHA51251f7659ac6aba8f8f441361089ec7822f966e05042d047ee3993532f33e2519086a71c866b2d7c4058cd08ea0757f8fb53e86460a3dab97db5ec0f310b4ed175
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Filesize
512KB
MD54119a99a43fd0238e970e06dcca2714b
SHA1df92cdf20413119a24fc83d4d81af67762fc6aa0
SHA256dfb64e97b5a0ba251627bc158d350e85e4158c63394d6de6264ac30f626128f7
SHA5121c0f446dd6cc448f94a1701f478e677f6e989a65c5b696128f2ad81c20ee089a17c8e409e2a564a86c178e81e4484506c1fa32f6a18975e6a2bb098024eab880
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Filesize
512KB
MD54119a99a43fd0238e970e06dcca2714b
SHA1df92cdf20413119a24fc83d4d81af67762fc6aa0
SHA256dfb64e97b5a0ba251627bc158d350e85e4158c63394d6de6264ac30f626128f7
SHA5121c0f446dd6cc448f94a1701f478e677f6e989a65c5b696128f2ad81c20ee089a17c8e409e2a564a86c178e81e4484506c1fa32f6a18975e6a2bb098024eab880
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Filesize
512KB
MD54119a99a43fd0238e970e06dcca2714b
SHA1df92cdf20413119a24fc83d4d81af67762fc6aa0
SHA256dfb64e97b5a0ba251627bc158d350e85e4158c63394d6de6264ac30f626128f7
SHA5121c0f446dd6cc448f94a1701f478e677f6e989a65c5b696128f2ad81c20ee089a17c8e409e2a564a86c178e81e4484506c1fa32f6a18975e6a2bb098024eab880
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Filesize
512KB
MD5f2485814638ada9e8ef5c6795ecccede
SHA13672135079385e636d009e76da5e89ba0a7a1470
SHA2568ee6bcca5ac41f17ff967baf8557333fdb5e901e014218660a00d56d4a48ac4a
SHA5129e655f40424ef81036002d0459677c67fb72d94e88008da52ae73fca3d49feb5a91a11f9fb23d7f1a54c5da93d5ceb0a32edbc3e486b20a90c6c5d7a60c8bc3d
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Filesize
512KB
MD5f2485814638ada9e8ef5c6795ecccede
SHA13672135079385e636d009e76da5e89ba0a7a1470
SHA2568ee6bcca5ac41f17ff967baf8557333fdb5e901e014218660a00d56d4a48ac4a
SHA5129e655f40424ef81036002d0459677c67fb72d94e88008da52ae73fca3d49feb5a91a11f9fb23d7f1a54c5da93d5ceb0a32edbc3e486b20a90c6c5d7a60c8bc3d
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Filesize
223B
MD506604e5941c126e2e7be02c5cd9f62ec
SHA14eb9fdf8ff4e1e539236002bd363b82c8f8930e1
SHA25685f2405d1f67021a3206faa26f6887932fea71aea070df3efb2902902e2d03e2
SHA512803f5f2fddbf29fef34de184eb35c2311b7a694740983ca10b54ef252dd26cda4987458d2569f441c6dedc3478bea12b45bfd3566f1b256504a0869ad3829df7
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Filesize
512KB
MD5773a52ddaf02453769bbd79d788544f4
SHA1b9b1db78cd379d918b04850264fefe058f3ae7f5
SHA2567f84d3b737ed3446fde79f1711f2f1c5201b2586ff967be20239f6e0b77e79d0
SHA512672f5140b589e20571acc2bc0aeb66c2a74e278c0acdcf900599c695caa7f985e8334832864f960f5cd36997a2c680575547e98ea473c90d137ebffcc0633708
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Filesize
512KB
MD5f6544f2e6bd87438db4fdf098fc4ed14
SHA12d6ef523038817d04ae318b32f00f5134c16f8c2
SHA256039950ebb17a984aad38a25955c21eefe9ae57cc641fbe640be685af5cc0b8ba
SHA512634a830351077b67fba07efdd2ba4f8bbc2abcb43c7e5afdaf8f3c66e3cfe51f70e2998e4d1947dc98908a4e2675d7a18b2291044fc32736c18c6521f3a5690a
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Filesize
512KB
MD5f6544f2e6bd87438db4fdf098fc4ed14
SHA12d6ef523038817d04ae318b32f00f5134c16f8c2
SHA256039950ebb17a984aad38a25955c21eefe9ae57cc641fbe640be685af5cc0b8ba
SHA512634a830351077b67fba07efdd2ba4f8bbc2abcb43c7e5afdaf8f3c66e3cfe51f70e2998e4d1947dc98908a4e2675d7a18b2291044fc32736c18c6521f3a5690a