61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d

Modify Registry

Processes:

cyhqunddob.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1"	cyhqunddob.exe

Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

Modify Registry

Processes:

cyhqunddob.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	cyhqunddob.exe

Windows security bypass 2 TTPs 5 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

Processes:

cyhqunddob.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	cyhqunddob.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	cyhqunddob.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	cyhqunddob.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	cyhqunddob.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1"	cyhqunddob.exe

Disables RegEdit via registry modification 1 IoCs

evasion

Processes:

cyhqunddob.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	cyhqunddob.exe

Executes dropped EXE 5 IoCs

Processes:

cyhqunddob.exevdhtoipsvcflrpb.exextnwpyno.exekpkazgrlartff.exextnwpyno.exe

pid process

1956 cyhqunddob.exe
4900 vdhtoipsvcflrpb.exe
1304 xtnwpyno.exe
1028 kpkazgrlartff.exe
4964 xtnwpyno.exe

pid	process
1956	cyhqunddob.exe
4900	vdhtoipsvcflrpb.exe
1304	xtnwpyno.exe
1028	kpkazgrlartff.exe
4964	xtnwpyno.exe

UPX packed file 27 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
C:\Windows\SysWOW64\cyhqunddob.exe	upx
C:\Windows\SysWOW64\cyhqunddob.exe	upx
C:\Windows\SysWOW64\vdhtoipsvcflrpb.exe	upx
C:\Windows\SysWOW64\xtnwpyno.exe	upx
C:\Windows\SysWOW64\xtnwpyno.exe	upx
C:\Windows\SysWOW64\vdhtoipsvcflrpb.exe	upx
behavioral2/memory/1956-145-0x0000000000400000-0x00000000004A0000-memory.dmp	upx
behavioral2/memory/1700-142-0x0000000000400000-0x00000000004A0000-memory.dmp	upx
C:\Windows\SysWOW64\kpkazgrlartff.exe	upx
C:\Windows\SysWOW64\kpkazgrlartff.exe	upx
behavioral2/memory/4900-146-0x0000000000400000-0x00000000004A0000-memory.dmp	upx
behavioral2/memory/1304-147-0x0000000000400000-0x00000000004A0000-memory.dmp	upx
behavioral2/memory/1028-148-0x0000000000400000-0x00000000004A0000-memory.dmp	upx
behavioral2/memory/1700-149-0x0000000000400000-0x00000000004A0000-memory.dmp	upx
behavioral2/memory/1956-150-0x0000000000400000-0x00000000004A0000-memory.dmp	upx
behavioral2/memory/4900-151-0x0000000000400000-0x00000000004A0000-memory.dmp	upx
behavioral2/memory/1304-152-0x0000000000400000-0x00000000004A0000-memory.dmp	upx
behavioral2/memory/1028-153-0x0000000000400000-0x00000000004A0000-memory.dmp	upx
behavioral2/memory/1700-155-0x0000000000400000-0x00000000004A0000-memory.dmp	upx
C:\Windows\SysWOW64\xtnwpyno.exe	upx
behavioral2/memory/4964-158-0x0000000000400000-0x00000000004A0000-memory.dmp	upx
C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLN.DOC.exe	upx
C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLV.DOC.exe	upx
C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLV.DOC.exe	upx
behavioral2/memory/4964-170-0x0000000000400000-0x00000000004A0000-memory.dmp	upx
\??\c:\Windows\SysWOW64\MSDRM\MsoIrmProtector.doc.exe	upx
\??\c:\Windows\SysWOW64\MSDRM\MsoIrmProtector.doc.exe	upx

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

System Information Discovery

Processes:

61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Windows security modification 2 TTPs 6 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

Processes:

cyhqunddob.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1"	cyhqunddob.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	cyhqunddob.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	cyhqunddob.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	cyhqunddob.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirstRunDisabled = "1"	cyhqunddob.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	cyhqunddob.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

Processes:

vdhtoipsvcflrpb.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	vdhtoipsvcflrpb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\dnhgajmn = "cyhqunddob.exe"	vdhtoipsvcflrpb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\wxcndbno = "vdhtoipsvcflrpb.exe"	vdhtoipsvcflrpb.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ = "kpkazgrlartff.exe"	vdhtoipsvcflrpb.exe

Enumerates connected drives 3 TTPs 64 IoCs

Attempts to read the root path of hard drives other than the default C: drive.

Query Registry

Peripheral Device Discovery

T1120

System Information Discovery

Processes:

xtnwpyno.execyhqunddob.exextnwpyno.exe

description	ioc	process
File opened (read-only)	\??\r:	xtnwpyno.exe
File opened (read-only)	\??\g:	cyhqunddob.exe
File opened (read-only)	\??\u:	cyhqunddob.exe
File opened (read-only)	\??\v:	cyhqunddob.exe
File opened (read-only)	\??\b:	xtnwpyno.exe
File opened (read-only)	\??\j:	cyhqunddob.exe
File opened (read-only)	\??\a:	xtnwpyno.exe
File opened (read-only)	\??\g:	xtnwpyno.exe
File opened (read-only)	\??\i:	xtnwpyno.exe
File opened (read-only)	\??\l:	xtnwpyno.exe
File opened (read-only)	\??\g:	xtnwpyno.exe
File opened (read-only)	\??\n:	xtnwpyno.exe
File opened (read-only)	\??\y:	xtnwpyno.exe
File opened (read-only)	\??\o:	cyhqunddob.exe
File opened (read-only)	\??\z:	cyhqunddob.exe
File opened (read-only)	\??\f:	xtnwpyno.exe
File opened (read-only)	\??\t:	cyhqunddob.exe
File opened (read-only)	\??\x:	cyhqunddob.exe
File opened (read-only)	\??\m:	xtnwpyno.exe
File opened (read-only)	\??\a:	xtnwpyno.exe
File opened (read-only)	\??\j:	xtnwpyno.exe
File opened (read-only)	\??\k:	xtnwpyno.exe
File opened (read-only)	\??\w:	xtnwpyno.exe
File opened (read-only)	\??\h:	cyhqunddob.exe
File opened (read-only)	\??\s:	cyhqunddob.exe
File opened (read-only)	\??\o:	xtnwpyno.exe
File opened (read-only)	\??\z:	xtnwpyno.exe
File opened (read-only)	\??\b:	cyhqunddob.exe
File opened (read-only)	\??\f:	cyhqunddob.exe
File opened (read-only)	\??\y:	cyhqunddob.exe
File opened (read-only)	\??\s:	xtnwpyno.exe
File opened (read-only)	\??\f:	xtnwpyno.exe
File opened (read-only)	\??\m:	xtnwpyno.exe
File opened (read-only)	\??\t:	xtnwpyno.exe
File opened (read-only)	\??\k:	xtnwpyno.exe
File opened (read-only)	\??\h:	xtnwpyno.exe
File opened (read-only)	\??\m:	cyhqunddob.exe
File opened (read-only)	\??\e:	cyhqunddob.exe
File opened (read-only)	\??\e:	xtnwpyno.exe
File opened (read-only)	\??\x:	xtnwpyno.exe
File opened (read-only)	\??\x:	xtnwpyno.exe
File opened (read-only)	\??\k:	cyhqunddob.exe
File opened (read-only)	\??\l:	cyhqunddob.exe
File opened (read-only)	\??\p:	cyhqunddob.exe
File opened (read-only)	\??\w:	cyhqunddob.exe
File opened (read-only)	\??\v:	xtnwpyno.exe
File opened (read-only)	\??\y:	xtnwpyno.exe
File opened (read-only)	\??\q:	cyhqunddob.exe
File opened (read-only)	\??\v:	xtnwpyno.exe
File opened (read-only)	\??\q:	xtnwpyno.exe
File opened (read-only)	\??\l:	xtnwpyno.exe
File opened (read-only)	\??\s:	xtnwpyno.exe
File opened (read-only)	\??\z:	xtnwpyno.exe
File opened (read-only)	\??\a:	cyhqunddob.exe
File opened (read-only)	\??\n:	cyhqunddob.exe
File opened (read-only)	\??\r:	cyhqunddob.exe
File opened (read-only)	\??\b:	xtnwpyno.exe
File opened (read-only)	\??\n:	xtnwpyno.exe
File opened (read-only)	\??\r:	xtnwpyno.exe
File opened (read-only)	\??\p:	xtnwpyno.exe
File opened (read-only)	\??\h:	xtnwpyno.exe
File opened (read-only)	\??\t:	xtnwpyno.exe
File opened (read-only)	\??\w:	xtnwpyno.exe
File opened (read-only)	\??\e:	xtnwpyno.exe

Modifies WinLogon 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

Processes:

cyhqunddob.exe

description	ioc	process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\SFCScan = "0"	cyhqunddob.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\SFCDisable = "4294967197"	cyhqunddob.exe

AutoIT Executable 13 IoCs

AutoIT scripts compiled to PE executables.

Processes:

resource	yara_rule
behavioral2/memory/1956-145-0x0000000000400000-0x00000000004A0000-memory.dmp	autoit_exe
behavioral2/memory/1700-142-0x0000000000400000-0x00000000004A0000-memory.dmp	autoit_exe
behavioral2/memory/4900-146-0x0000000000400000-0x00000000004A0000-memory.dmp	autoit_exe
behavioral2/memory/1304-147-0x0000000000400000-0x00000000004A0000-memory.dmp	autoit_exe
behavioral2/memory/1028-148-0x0000000000400000-0x00000000004A0000-memory.dmp	autoit_exe
behavioral2/memory/1700-149-0x0000000000400000-0x00000000004A0000-memory.dmp	autoit_exe
behavioral2/memory/1956-150-0x0000000000400000-0x00000000004A0000-memory.dmp	autoit_exe
behavioral2/memory/4900-151-0x0000000000400000-0x00000000004A0000-memory.dmp	autoit_exe
behavioral2/memory/1304-152-0x0000000000400000-0x00000000004A0000-memory.dmp	autoit_exe
behavioral2/memory/1028-153-0x0000000000400000-0x00000000004A0000-memory.dmp	autoit_exe
behavioral2/memory/1700-155-0x0000000000400000-0x00000000004A0000-memory.dmp	autoit_exe
behavioral2/memory/4964-158-0x0000000000400000-0x00000000004A0000-memory.dmp	autoit_exe
behavioral2/memory/4964-170-0x0000000000400000-0x00000000004A0000-memory.dmp	autoit_exe

Drops file in System32 directory 12 IoCs

Processes:

xtnwpyno.exe61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.execyhqunddob.exextnwpyno.exe

description	ioc	process
File opened for modification	\??\c:\Windows\SysWOW64\MSDRM\MsoIrmProtector.doc.exe	xtnwpyno.exe
File opened for modification	C:\Windows\SysWOW64\vdhtoipsvcflrpb.exe	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe
File opened for modification	C:\Windows\SysWOW64\msvbvm60.dll	cyhqunddob.exe
File created	\??\c:\Windows\SysWOW64\MSDRM\MsoIrmProtector.doc.exe	xtnwpyno.exe
File opened for modification	\??\c:\Windows\SysWOW64\MSDRM\MsoIrmProtector.doc.exe	xtnwpyno.exe
File opened for modification	C:\Windows\SysWOW64\xtnwpyno.exe	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe
File created	C:\Windows\SysWOW64\kpkazgrlartff.exe	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe
File opened for modification	C:\Windows\SysWOW64\kpkazgrlartff.exe	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe
File created	C:\Windows\SysWOW64\cyhqunddob.exe	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe
File opened for modification	C:\Windows\SysWOW64\cyhqunddob.exe	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe
File created	C:\Windows\SysWOW64\vdhtoipsvcflrpb.exe	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe
File created	C:\Windows\SysWOW64\xtnwpyno.exe	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe

Drops file in Program Files directory 14 IoCs

Processes:

xtnwpyno.exextnwpyno.exe

description	ioc	process
File opened for modification	\??\c:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLN.DOC.exe	xtnwpyno.exe
File created	\??\c:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLV.DOC.exe	xtnwpyno.exe
File opened for modification	\??\c:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLV.DOC.exe	xtnwpyno.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLV.nal	xtnwpyno.exe
File opened for modification	\??\c:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLV.DOC.exe	xtnwpyno.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLV.DOC.exe	xtnwpyno.exe
File opened for modification	\??\c:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLN.DOC.exe	xtnwpyno.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLN.DOC.exe	xtnwpyno.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLV.DOC.exe	xtnwpyno.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLV.nal	xtnwpyno.exe
File created	\??\c:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLN.DOC.exe	xtnwpyno.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLN.DOC.exe	xtnwpyno.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLN.nal	xtnwpyno.exe
File opened for modification	C:\Program Files\Microsoft Office\root\Office16\1033\PROTTPLN.nal	xtnwpyno.exe

Drops file in Windows directory 3 IoCs

Processes:

61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exeWINWORD.EXE

description	ioc	process
File opened for modification	C:\Windows\mydoc.rtf	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe
File opened for modification	C:\Windows\mydoc.rtf	WINWORD.EXE
File created	C:\Windows\~$mydoc.rtf	WINWORD.EXE

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

System Information Discovery

Processes:

WINWORD.EXE

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

Query Registry

System Information Discovery

Processes:

WINWORD.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	WINWORD.EXE

Modifies registry class 20 IoCs

Processes:

cyhqunddob.exe61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.wsh	cyhqunddob.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.vbs\ = "txtfile"	cyhqunddob.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.reg\ = "txtfile"	cyhqunddob.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\Com1 = "33402D089C2182276D4276A570222CDA7D8164DB"	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\StartCom2 = "193EC77915E1DAB5B8C07CE6ED9034C6"	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.bat	cyhqunddob.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\Com3 = "2EC3B02E47E0389E52CEB9A2329BD7C9"	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\Com4 = "7EFAFCFE482B85699032D7207E97BDE1E133584566436341D7E9"	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.WSH\ = "txtfile"	cyhqunddob.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.wsf	cyhqunddob.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.WSF\ = "txtfile"	cyhqunddob.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.bat\ = "txtfile"	cyhqunddob.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.wsc	cyhqunddob.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.wsc\ = "txtfile"	cyhqunddob.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.vbs	cyhqunddob.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.reg	cyhqunddob.exe
Key created	\REGISTRY\MACHINE\Software\Classes\CLV.Classes	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\Com2 = "6BCAFAB0F965F2E2837F3B31819B3E92B389028C4315034CE2CC459908A8"	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\StartCom1 = "E7F56BC2FE6C21DFD208D0A48A749164"	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe

Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

5096 WINWORD.EXE
5096 WINWORD.EXE

pid	process
5096	WINWORD.EXE
5096	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.execyhqunddob.exevdhtoipsvcflrpb.exextnwpyno.exekpkazgrlartff.exe

pid	process
1700	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe
1700	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe
1700	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe
1700	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe
1700	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe
1700	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe
1700	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe
1700	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe
1700	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe
1700	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe
1700	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe
1700	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe
1700	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe
1700	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe
1700	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe
1700	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe
1956	cyhqunddob.exe
1956	cyhqunddob.exe
4900	vdhtoipsvcflrpb.exe
4900	vdhtoipsvcflrpb.exe
4900	vdhtoipsvcflrpb.exe
4900	vdhtoipsvcflrpb.exe
4900	vdhtoipsvcflrpb.exe
4900	vdhtoipsvcflrpb.exe
4900	vdhtoipsvcflrpb.exe
1956	cyhqunddob.exe
4900	vdhtoipsvcflrpb.exe
1956	cyhqunddob.exe
1956	cyhqunddob.exe
1956	cyhqunddob.exe
1956	cyhqunddob.exe
1956	cyhqunddob.exe
1956	cyhqunddob.exe
1956	cyhqunddob.exe
4900	vdhtoipsvcflrpb.exe
4900	vdhtoipsvcflrpb.exe
1304	xtnwpyno.exe
1304	xtnwpyno.exe
1304	xtnwpyno.exe
1304	xtnwpyno.exe
1304	xtnwpyno.exe
1304	xtnwpyno.exe
1304	xtnwpyno.exe
1304	xtnwpyno.exe
1028	kpkazgrlartff.exe
1028	kpkazgrlartff.exe
1028	kpkazgrlartff.exe
1028	kpkazgrlartff.exe
1028	kpkazgrlartff.exe
1028	kpkazgrlartff.exe
1028	kpkazgrlartff.exe
1028	kpkazgrlartff.exe
1028	kpkazgrlartff.exe
1028	kpkazgrlartff.exe
1028	kpkazgrlartff.exe
1028	kpkazgrlartff.exe
4900	vdhtoipsvcflrpb.exe
4900	vdhtoipsvcflrpb.exe
1028	kpkazgrlartff.exe
1028	kpkazgrlartff.exe
1028	kpkazgrlartff.exe
1028	kpkazgrlartff.exe
4900	vdhtoipsvcflrpb.exe
4900	vdhtoipsvcflrpb.exe

Suspicious use of FindShellTrayWindow 18 IoCs

Processes:

61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.execyhqunddob.exevdhtoipsvcflrpb.exextnwpyno.exekpkazgrlartff.exextnwpyno.exe

pid	process
1700	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe
1700	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe
1700	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe
1956	cyhqunddob.exe
1956	cyhqunddob.exe
1956	cyhqunddob.exe
4900	vdhtoipsvcflrpb.exe
4900	vdhtoipsvcflrpb.exe
4900	vdhtoipsvcflrpb.exe
1304	xtnwpyno.exe
1304	xtnwpyno.exe
1304	xtnwpyno.exe
1028	kpkazgrlartff.exe
1028	kpkazgrlartff.exe
1028	kpkazgrlartff.exe
4964	xtnwpyno.exe
4964	xtnwpyno.exe
4964	xtnwpyno.exe

Suspicious use of SendNotifyMessage 18 IoCs

Processes:

61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.execyhqunddob.exevdhtoipsvcflrpb.exextnwpyno.exekpkazgrlartff.exextnwpyno.exe

pid	process
1700	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe
1700	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe
1700	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe
1956	cyhqunddob.exe
1956	cyhqunddob.exe
1956	cyhqunddob.exe
4900	vdhtoipsvcflrpb.exe
4900	vdhtoipsvcflrpb.exe
4900	vdhtoipsvcflrpb.exe
1304	xtnwpyno.exe
1304	xtnwpyno.exe
1304	xtnwpyno.exe
1028	kpkazgrlartff.exe
1028	kpkazgrlartff.exe
1028	kpkazgrlartff.exe
4964	xtnwpyno.exe
4964	xtnwpyno.exe
4964	xtnwpyno.exe

Suspicious use of SetWindowsHookEx 7 IoCs

Processes:

WINWORD.EXE

pid process

5096 WINWORD.EXE
5096 WINWORD.EXE
5096 WINWORD.EXE
5096 WINWORD.EXE
5096 WINWORD.EXE
5096 WINWORD.EXE
5096 WINWORD.EXE

pid	process
5096	WINWORD.EXE
5096	WINWORD.EXE
5096	WINWORD.EXE
5096	WINWORD.EXE
5096	WINWORD.EXE
5096	WINWORD.EXE
5096	WINWORD.EXE

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.execyhqunddob.exe

description	pid	process	target process
PID 1700 wrote to memory of 1956	1700	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe	cyhqunddob.exe
PID 1700 wrote to memory of 1956	1700	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe	cyhqunddob.exe
PID 1700 wrote to memory of 1956	1700	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe	cyhqunddob.exe
PID 1700 wrote to memory of 4900	1700	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe	vdhtoipsvcflrpb.exe
PID 1700 wrote to memory of 4900	1700	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe	vdhtoipsvcflrpb.exe
PID 1700 wrote to memory of 4900	1700	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe	vdhtoipsvcflrpb.exe
PID 1700 wrote to memory of 1304	1700	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe	xtnwpyno.exe
PID 1700 wrote to memory of 1304	1700	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe	xtnwpyno.exe
PID 1700 wrote to memory of 1304	1700	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe	xtnwpyno.exe
PID 1700 wrote to memory of 1028	1700	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe	kpkazgrlartff.exe
PID 1700 wrote to memory of 1028	1700	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe	kpkazgrlartff.exe
PID 1700 wrote to memory of 1028	1700	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe	kpkazgrlartff.exe
PID 1700 wrote to memory of 5096	1700	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe	WINWORD.EXE
PID 1700 wrote to memory of 5096	1700	61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe	WINWORD.EXE
PID 1956 wrote to memory of 4964	1956	cyhqunddob.exe	xtnwpyno.exe
PID 1956 wrote to memory of 4964	1956	cyhqunddob.exe	xtnwpyno.exe
PID 1956 wrote to memory of 4964	1956	cyhqunddob.exe	xtnwpyno.exe

C:\Users\Admin\AppData\Local\Temp\61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.exe
"C:\Users\Admin\AppData\Local\Temp\61a97e8fec20a33d2c9f5b8bd11bf0c698117054ca1d4f2f70b05855bcbdb55d.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:1700

C:\Windows\SysWOW64\vdhtoipsvcflrpb.exe
vdhtoipsvcflrpb.exe
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:4900

C:\Windows\SysWOW64\kpkazgrlartff.exe
kpkazgrlartff.exe
2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1028

C:\Windows\SysWOW64\xtnwpyno.exe
xtnwpyno.exe
2⤵
- Executes dropped EXE
- Enumerates connected drives
- Drops file in System32 directory
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1304

C:\Windows\SysWOW64\cyhqunddob.exe
cyhqunddob.exe
2⤵
- 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:1956

C:\Windows\SysWOW64\xtnwpyno.exe
C:\Windows\system32\xtnwpyno.exe
3⤵
- Executes dropped EXE
- Enumerates connected drives
- Drops file in System32 directory
- Drops file in Program Files directory
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:4964

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:5096

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

Registry Run Keys / Startup Folder

T1060

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Disabling Security Tools

T1089

Hidden Files and Directories

Modify Registry

Credential Access

Credentials in Files

T1081

Discovery

Peripheral Device Discovery

T1120

Query Registry

System Information Discovery