0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7

Modify Registry

Processes:

yrnbrcqtjz.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"	yrnbrcqtjz.exe

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

evasion

Hidden Files and Directories

Modify Registry

Processes:

yrnbrcqtjz.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"	yrnbrcqtjz.exe

Windows security bypass 2 TTPs 5 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

Processes:

yrnbrcqtjz.exe

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

Disables RegEdit via registry modification 1 IoCs

evasion

Processes:

yrnbrcqtjz.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"	yrnbrcqtjz.exe

Executes dropped EXE 5 IoCs

Processes:

yrnbrcqtjz.exewxxxpmeymwdmfcw.exetotpcgxh.exevljjcakagpngu.exetotpcgxh.exe

pid process

2008 yrnbrcqtjz.exe
3468 wxxxpmeymwdmfcw.exe
4580 totpcgxh.exe
864 vljjcakagpngu.exe
1028 totpcgxh.exe

pid	process
2008	yrnbrcqtjz.exe
3468	wxxxpmeymwdmfcw.exe
4580	totpcgxh.exe
864	vljjcakagpngu.exe
1028	totpcgxh.exe

UPX packed file 23 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/4076-132-0x0000000000400000-0x00000000004A0000-memory.dmp	upx
C:\Windows\SysWOW64\yrnbrcqtjz.exe	upx
C:\Windows\SysWOW64\yrnbrcqtjz.exe	upx
C:\Windows\SysWOW64\wxxxpmeymwdmfcw.exe	upx
C:\Windows\SysWOW64\wxxxpmeymwdmfcw.exe	upx
C:\Windows\SysWOW64\totpcgxh.exe	upx
C:\Windows\SysWOW64\totpcgxh.exe	upx
behavioral2/memory/3468-144-0x0000000000400000-0x00000000004A0000-memory.dmp	upx
behavioral2/memory/4580-147-0x0000000000400000-0x00000000004A0000-memory.dmp	upx
C:\Windows\SysWOW64\vljjcakagpngu.exe	upx
C:\Windows\SysWOW64\vljjcakagpngu.exe	upx
behavioral2/memory/2008-142-0x0000000000400000-0x00000000004A0000-memory.dmp	upx
behavioral2/memory/4076-151-0x0000000000400000-0x00000000004A0000-memory.dmp	upx
behavioral2/memory/864-152-0x0000000000400000-0x00000000004A0000-memory.dmp	upx
C:\Windows\SysWOW64\totpcgxh.exe	upx
behavioral2/memory/1028-153-0x0000000000400000-0x00000000004A0000-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
behavioral2/memory/3468-164-0x0000000000400000-0x00000000004A0000-memory.dmp	upx
behavioral2/memory/2008-165-0x0000000000400000-0x00000000004A0000-memory.dmp	upx
behavioral2/memory/4580-166-0x0000000000400000-0x00000000004A0000-memory.dmp	upx
behavioral2/memory/864-167-0x0000000000400000-0x00000000004A0000-memory.dmp	upx
behavioral2/memory/1028-168-0x0000000000400000-0x00000000004A0000-memory.dmp	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:

0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.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:

yrnbrcqtjz.exe

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

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

Processes:

wxxxpmeymwdmfcw.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\igvflcuf = "wxxxpmeymwdmfcw.exe"	wxxxpmeymwdmfcw.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ = "vljjcakagpngu.exe"	wxxxpmeymwdmfcw.exe
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	wxxxpmeymwdmfcw.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\pzvtlzjn = "yrnbrcqtjz.exe"	wxxxpmeymwdmfcw.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:

totpcgxh.exeyrnbrcqtjz.exetotpcgxh.exe

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

Modifies WinLogon 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

Processes:

yrnbrcqtjz.exe

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

AutoIT Executable 11 IoCs

AutoIT scripts compiled to PE executables.

Processes:

resource	yara_rule
behavioral2/memory/3468-144-0x0000000000400000-0x00000000004A0000-memory.dmp	autoit_exe
behavioral2/memory/4580-147-0x0000000000400000-0x00000000004A0000-memory.dmp	autoit_exe
behavioral2/memory/2008-142-0x0000000000400000-0x00000000004A0000-memory.dmp	autoit_exe
behavioral2/memory/4076-151-0x0000000000400000-0x00000000004A0000-memory.dmp	autoit_exe
behavioral2/memory/864-152-0x0000000000400000-0x00000000004A0000-memory.dmp	autoit_exe
behavioral2/memory/1028-153-0x0000000000400000-0x00000000004A0000-memory.dmp	autoit_exe
behavioral2/memory/3468-164-0x0000000000400000-0x00000000004A0000-memory.dmp	autoit_exe
behavioral2/memory/2008-165-0x0000000000400000-0x00000000004A0000-memory.dmp	autoit_exe
behavioral2/memory/4580-166-0x0000000000400000-0x00000000004A0000-memory.dmp	autoit_exe
behavioral2/memory/864-167-0x0000000000400000-0x00000000004A0000-memory.dmp	autoit_exe
behavioral2/memory/1028-168-0x0000000000400000-0x00000000004A0000-memory.dmp	autoit_exe

Drops file in System32 directory 9 IoCs

Processes:

0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exeyrnbrcqtjz.exe

description	ioc	process
File created	C:\Windows\SysWOW64\yrnbrcqtjz.exe	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe
File opened for modification	C:\Windows\SysWOW64\yrnbrcqtjz.exe	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe
File opened for modification	C:\Windows\SysWOW64\wxxxpmeymwdmfcw.exe	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe
File opened for modification	C:\Windows\SysWOW64\totpcgxh.exe	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe
File created	C:\Windows\SysWOW64\wxxxpmeymwdmfcw.exe	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe
File created	C:\Windows\SysWOW64\totpcgxh.exe	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe
File created	C:\Windows\SysWOW64\vljjcakagpngu.exe	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe
File opened for modification	C:\Windows\SysWOW64\vljjcakagpngu.exe	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe
File opened for modification	C:\Windows\SysWOW64\msvbvm60.dll	yrnbrcqtjz.exe

Drops file in Program Files directory 15 IoCs

Processes:

totpcgxh.exetotpcgxh.exe

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

Drops file in Windows directory 3 IoCs

Processes:

WINWORD.EXE0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe

description	ioc	process
File opened for modification	C:\Windows\mydoc.rtf	WINWORD.EXE
File created	C:\Windows\~$mydoc.rtf	WINWORD.EXE
File opened for modification	C:\Windows\mydoc.rtf	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.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:

yrnbrcqtjz.exe0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.wsc\ = "txtfile"	yrnbrcqtjz.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.wsf	yrnbrcqtjz.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\Com3 = "2EB0B15A449538E253CDBAD5339DD7CE"	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\Com4 = "7F8CFF8B482A851B9142D75F7DE5BD97E135584767326342D691"	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.bat	yrnbrcqtjz.exe
Key created	\REGISTRY\MACHINE\Software\Classes\CLV.Classes	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\StartCom2 = "1849C60F14E4DAC4B8C87CE7ECE234CF"	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.WSF\ = "txtfile"	yrnbrcqtjz.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.reg	yrnbrcqtjz.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.reg\ = "txtfile"	yrnbrcqtjz.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\Com2 = "6BC9F9BCFE65F29184093B35869E3E98B0F903884313034FE1C8429C09D4"	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\StartCom1 = "E0F168C6FF1D22DCD27CD1A48A089164"	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.wsh	yrnbrcqtjz.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.wsc	yrnbrcqtjz.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.vbs	yrnbrcqtjz.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.vbs\ = "txtfile"	yrnbrcqtjz.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\Com1 = "32352D7A9C2783226D3E76D377272DDA7D8465AA"	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.bat\ = "txtfile"	yrnbrcqtjz.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.WSH\ = "txtfile"	yrnbrcqtjz.exe

Suspicious behavior: AddClipboardFormatListener 2 IoCs

Processes:

WINWORD.EXE

pid process

2368 WINWORD.EXE
2368 WINWORD.EXE

pid	process
2368	WINWORD.EXE
2368	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exeyrnbrcqtjz.exewxxxpmeymwdmfcw.exetotpcgxh.exevljjcakagpngu.exetotpcgxh.exe

pid	process
4076	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe
4076	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe
4076	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe
4076	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe
4076	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe
4076	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe
4076	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe
4076	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe
4076	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe
4076	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe
4076	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe
4076	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe
4076	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe
4076	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe
4076	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe
4076	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe
2008	yrnbrcqtjz.exe
2008	yrnbrcqtjz.exe
2008	yrnbrcqtjz.exe
2008	yrnbrcqtjz.exe
2008	yrnbrcqtjz.exe
2008	yrnbrcqtjz.exe
2008	yrnbrcqtjz.exe
2008	yrnbrcqtjz.exe
2008	yrnbrcqtjz.exe
2008	yrnbrcqtjz.exe
3468	wxxxpmeymwdmfcw.exe
3468	wxxxpmeymwdmfcw.exe
3468	wxxxpmeymwdmfcw.exe
3468	wxxxpmeymwdmfcw.exe
3468	wxxxpmeymwdmfcw.exe
3468	wxxxpmeymwdmfcw.exe
3468	wxxxpmeymwdmfcw.exe
3468	wxxxpmeymwdmfcw.exe
3468	wxxxpmeymwdmfcw.exe
3468	wxxxpmeymwdmfcw.exe
4580	totpcgxh.exe
4580	totpcgxh.exe
4580	totpcgxh.exe
4580	totpcgxh.exe
4580	totpcgxh.exe
4580	totpcgxh.exe
4580	totpcgxh.exe
4580	totpcgxh.exe
864	vljjcakagpngu.exe
864	vljjcakagpngu.exe
864	vljjcakagpngu.exe
864	vljjcakagpngu.exe
864	vljjcakagpngu.exe
864	vljjcakagpngu.exe
864	vljjcakagpngu.exe
864	vljjcakagpngu.exe
864	vljjcakagpngu.exe
864	vljjcakagpngu.exe
864	vljjcakagpngu.exe
864	vljjcakagpngu.exe
3468	wxxxpmeymwdmfcw.exe
3468	wxxxpmeymwdmfcw.exe
1028	totpcgxh.exe
1028	totpcgxh.exe
1028	totpcgxh.exe
1028	totpcgxh.exe
1028	totpcgxh.exe
1028	totpcgxh.exe

Suspicious use of FindShellTrayWindow 18 IoCs

Processes:

0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exeyrnbrcqtjz.exewxxxpmeymwdmfcw.exetotpcgxh.exevljjcakagpngu.exetotpcgxh.exe

pid	process
4076	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe
4076	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe
4076	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe
2008	yrnbrcqtjz.exe
2008	yrnbrcqtjz.exe
2008	yrnbrcqtjz.exe
3468	wxxxpmeymwdmfcw.exe
3468	wxxxpmeymwdmfcw.exe
3468	wxxxpmeymwdmfcw.exe
4580	totpcgxh.exe
4580	totpcgxh.exe
4580	totpcgxh.exe
864	vljjcakagpngu.exe
864	vljjcakagpngu.exe
864	vljjcakagpngu.exe
1028	totpcgxh.exe
1028	totpcgxh.exe
1028	totpcgxh.exe

Suspicious use of SendNotifyMessage 18 IoCs

Processes:

0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exeyrnbrcqtjz.exewxxxpmeymwdmfcw.exetotpcgxh.exevljjcakagpngu.exetotpcgxh.exe

pid	process
4076	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe
4076	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe
4076	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe
2008	yrnbrcqtjz.exe
2008	yrnbrcqtjz.exe
2008	yrnbrcqtjz.exe
3468	wxxxpmeymwdmfcw.exe
3468	wxxxpmeymwdmfcw.exe
3468	wxxxpmeymwdmfcw.exe
4580	totpcgxh.exe
4580	totpcgxh.exe
4580	totpcgxh.exe
864	vljjcakagpngu.exe
864	vljjcakagpngu.exe
864	vljjcakagpngu.exe
1028	totpcgxh.exe
1028	totpcgxh.exe
1028	totpcgxh.exe

Suspicious use of SetWindowsHookEx 7 IoCs

Processes:

WINWORD.EXE

pid process

2368 WINWORD.EXE
2368 WINWORD.EXE
2368 WINWORD.EXE
2368 WINWORD.EXE
2368 WINWORD.EXE
2368 WINWORD.EXE
2368 WINWORD.EXE

pid	process
2368	WINWORD.EXE
2368	WINWORD.EXE
2368	WINWORD.EXE
2368	WINWORD.EXE
2368	WINWORD.EXE
2368	WINWORD.EXE
2368	WINWORD.EXE

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exeyrnbrcqtjz.exe

description	pid	process	target process
PID 4076 wrote to memory of 2008	4076	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe	yrnbrcqtjz.exe
PID 4076 wrote to memory of 2008	4076	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe	yrnbrcqtjz.exe
PID 4076 wrote to memory of 2008	4076	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe	yrnbrcqtjz.exe
PID 4076 wrote to memory of 3468	4076	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe	wxxxpmeymwdmfcw.exe
PID 4076 wrote to memory of 3468	4076	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe	wxxxpmeymwdmfcw.exe
PID 4076 wrote to memory of 3468	4076	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe	wxxxpmeymwdmfcw.exe
PID 4076 wrote to memory of 4580	4076	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe	totpcgxh.exe
PID 4076 wrote to memory of 4580	4076	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe	totpcgxh.exe
PID 4076 wrote to memory of 4580	4076	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe	totpcgxh.exe
PID 4076 wrote to memory of 864	4076	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe	vljjcakagpngu.exe
PID 4076 wrote to memory of 864	4076	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe	vljjcakagpngu.exe
PID 4076 wrote to memory of 864	4076	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe	vljjcakagpngu.exe
PID 4076 wrote to memory of 2368	4076	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe	WINWORD.EXE
PID 4076 wrote to memory of 2368	4076	0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe	WINWORD.EXE
PID 2008 wrote to memory of 1028	2008	yrnbrcqtjz.exe	totpcgxh.exe
PID 2008 wrote to memory of 1028	2008	yrnbrcqtjz.exe	totpcgxh.exe
PID 2008 wrote to memory of 1028	2008	yrnbrcqtjz.exe	totpcgxh.exe

C:\Users\Admin\AppData\Local\Temp\0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.exe
"C:\Users\Admin\AppData\Local\Temp\0d72351dcd80cfe48ad85f61c842a6ee7e292d1888ee7e9f2124a3d076dd98c7.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:4076

C:\Windows\SysWOW64\yrnbrcqtjz.exe
yrnbrcqtjz.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:2008

C:\Windows\SysWOW64\totpcgxh.exe
C:\Windows\system32\totpcgxh.exe
3⤵
- Executes dropped EXE
- Enumerates connected drives
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1028

C:\Windows\SysWOW64\wxxxpmeymwdmfcw.exe
wxxxpmeymwdmfcw.exe
2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:3468

C:\Windows\SysWOW64\totpcgxh.exe
totpcgxh.exe
2⤵
- Executes dropped EXE
- Enumerates connected drives
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:4580

C:\Windows\SysWOW64\vljjcakagpngu.exe
vljjcakagpngu.exe
2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:864

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:2368

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Hidden Files and Directories

Registry Run Keys / Startup Folder

T1060

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Hidden Files and Directories

Modify Registry

Disabling Security Tools

T1089

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

System Information Discovery