ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98

Analysis

max time kernel
343s
max time network
379s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
23-11-2022 20:59

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General

Target

ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe
Size

255KB
MD5

d1b1341d083a3008b97a28077e52e1c5
SHA1

3de7acf39298dec436b6d749ddb27d73a92a9c56
SHA256

ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98
SHA512

4465ef6f31d70321da2a0d88fbee0a18134ff0f964819c0d57be3f2560d2fb44ab0d664854b78eda959a3e663f16c8fc9e74b868f10be7ef918a81000aa610d3
SSDEEP

3072:MMDb50WrZa8jCgae5+VQkGdUQFDxePZ2SBaQJXkNRtXlNGKaUIQW/qlQBG3mmTJa:1xlZam+akqx6YQJXcNlEHUIQeE3mmBIZ

Score

10^/10

evasion persistence trojan upx

Malware Config

Signatures

Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

Processes:

oyoonrxekp.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1"	oyoonrxekp.exe

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

evasion

Hidden Files and Directories

T1158

Modify Registry

T1112

Processes:

oyoonrxekp.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0"	oyoonrxekp.exe

Windows security bypass 2 TTPs 5 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

oyoonrxekp.exe

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

Disables RegEdit via registry modification 1 IoCs

evasion

Processes:

oyoonrxekp.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	oyoonrxekp.exe

Executes dropped EXE 5 IoCs

Processes:

oyoonrxekp.exemgkafluwtsthkoh.exegbjhtbxz.exeqfjkpoyzfcwjw.exegbjhtbxz.exe

pid process

4644 oyoonrxekp.exe
4716 mgkafluwtsthkoh.exe
1480 gbjhtbxz.exe
3520 qfjkpoyzfcwjw.exe
3008 gbjhtbxz.exe

pid	process
4644	oyoonrxekp.exe
4716	mgkafluwtsthkoh.exe
1480	gbjhtbxz.exe
3520	qfjkpoyzfcwjw.exe
3008	gbjhtbxz.exe

UPX packed file 18 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/2840-132-0x0000000000400000-0x00000000004A0000-memory.dmp	upx
C:\Windows\SysWOW64\oyoonrxekp.exe	upx
C:\Windows\SysWOW64\oyoonrxekp.exe	upx
C:\Windows\SysWOW64\gbjhtbxz.exe	upx
C:\Windows\SysWOW64\gbjhtbxz.exe	upx
C:\Windows\SysWOW64\mgkafluwtsthkoh.exe	upx
C:\Windows\SysWOW64\mgkafluwtsthkoh.exe	upx
C:\Windows\SysWOW64\qfjkpoyzfcwjw.exe	upx
C:\Windows\SysWOW64\qfjkpoyzfcwjw.exe	upx
behavioral2/memory/4644-145-0x0000000000400000-0x00000000004A0000-memory.dmp	upx
behavioral2/memory/4716-146-0x0000000000400000-0x00000000004A0000-memory.dmp	upx
behavioral2/memory/1480-147-0x0000000000400000-0x00000000004A0000-memory.dmp	upx
behavioral2/memory/3520-148-0x0000000000400000-0x00000000004A0000-memory.dmp	upx
behavioral2/memory/2840-149-0x0000000000400000-0x00000000004A0000-memory.dmp	upx
behavioral2/memory/4716-150-0x0000000000400000-0x00000000004A0000-memory.dmp	upx
behavioral2/memory/3520-151-0x0000000000400000-0x00000000004A0000-memory.dmp	upx
C:\Windows\SysWOW64\gbjhtbxz.exe	upx
behavioral2/memory/3008-154-0x0000000000400000-0x00000000004A0000-memory.dmp	upx

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Control Panel\International\Geo\Nation	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe

Windows security modification 2 TTPs 6 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

Processes:

oyoonrxekp.exe

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

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

mgkafluwtsthkoh.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	mgkafluwtsthkoh.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\gaoifztg = "oyoonrxekp.exe"	mgkafluwtsthkoh.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\rdhsibrl = "mgkafluwtsthkoh.exe"	mgkafluwtsthkoh.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ = "qfjkpoyzfcwjw.exe"	mgkafluwtsthkoh.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

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

gbjhtbxz.exeoyoonrxekp.exegbjhtbxz.exe

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

Modifies WinLogon 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

oyoonrxekp.exe

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

AutoIT Executable 9 IoCs

AutoIT scripts compiled to PE executables.

Processes:

resource	yara_rule
behavioral2/memory/2840-132-0x0000000000400000-0x00000000004A0000-memory.dmp	autoit_exe
behavioral2/memory/4644-145-0x0000000000400000-0x00000000004A0000-memory.dmp	autoit_exe
behavioral2/memory/4716-146-0x0000000000400000-0x00000000004A0000-memory.dmp	autoit_exe
behavioral2/memory/1480-147-0x0000000000400000-0x00000000004A0000-memory.dmp	autoit_exe
behavioral2/memory/3520-148-0x0000000000400000-0x00000000004A0000-memory.dmp	autoit_exe
behavioral2/memory/2840-149-0x0000000000400000-0x00000000004A0000-memory.dmp	autoit_exe
behavioral2/memory/4716-150-0x0000000000400000-0x00000000004A0000-memory.dmp	autoit_exe
behavioral2/memory/3520-151-0x0000000000400000-0x00000000004A0000-memory.dmp	autoit_exe
behavioral2/memory/3008-154-0x0000000000400000-0x00000000004A0000-memory.dmp	autoit_exe

Drops file in System32 directory 9 IoCs

Processes:

ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exeoyoonrxekp.exe

description	ioc	process
File created	C:\Windows\SysWOW64\mgkafluwtsthkoh.exe	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe
File created	C:\Windows\SysWOW64\oyoonrxekp.exe	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe
File opened for modification	C:\Windows\SysWOW64\oyoonrxekp.exe	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe
File opened for modification	C:\Windows\SysWOW64\mgkafluwtsthkoh.exe	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe
File created	C:\Windows\SysWOW64\gbjhtbxz.exe	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe
File opened for modification	C:\Windows\SysWOW64\gbjhtbxz.exe	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe
File created	C:\Windows\SysWOW64\qfjkpoyzfcwjw.exe	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe
File opened for modification	C:\Windows\SysWOW64\qfjkpoyzfcwjw.exe	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe
File opened for modification	C:\Windows\SysWOW64\msvbvm60.dll	oyoonrxekp.exe

Drops file in Windows directory 1 IoCs

Processes:

ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe

description ioc process

File opened for modification C:\Windows\mydoc.rtf ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

description	ioc	process
File opened for modification	C:\Windows\mydoc.rtf	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe

Modifies registry class 20 IoCs

Processes:

oyoonrxekp.exeff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.wsf	oyoonrxekp.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.WSF\ = "txtfile"	oyoonrxekp.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.vbs	oyoonrxekp.exe
Key created	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000_Classes\Local Settings	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\Com1 = "33372D089C2683506A3277D2772E2CDB7D8565D9"	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\Com3 = "2FB5B12847E439EA52CABAD0339DD4CC"	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.bat	oyoonrxekp.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.bat\ = "txtfile"	oyoonrxekp.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.WSH\ = "txtfile"	oyoonrxekp.exe
Key created	\REGISTRY\MACHINE\Software\Classes\CLV.Classes	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\Com2 = "6AB8FACAF966F198830F3B36819E3E96B38B038C42130348E1C542EF08A2"	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\Com4 = "7F89FFF8482A851A9047D7287E9CBCE7E134594466406334D6EA"	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\StartCom1 = "E7F66BB4FE6B21D1D209D1A48B7D9114"	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.reg	oyoonrxekp.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.reg\ = "txtfile"	oyoonrxekp.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\StartCom2 = "1939C6751593DBC3B8CD7CE6ECE734BE"	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.wsh	oyoonrxekp.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.wsc	oyoonrxekp.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.vbs\ = "txtfile"	oyoonrxekp.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.wsc\ = "txtfile"	oyoonrxekp.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exeoyoonrxekp.exegbjhtbxz.exemgkafluwtsthkoh.exeqfjkpoyzfcwjw.exe

pid	process
2840	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe
2840	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe
2840	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe
2840	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe
2840	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe
2840	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe
2840	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe
2840	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe
2840	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe
2840	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe
2840	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe
2840	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe
2840	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe
2840	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe
2840	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe
2840	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe
4644	oyoonrxekp.exe
4644	oyoonrxekp.exe
4644	oyoonrxekp.exe
4644	oyoonrxekp.exe
4644	oyoonrxekp.exe
4644	oyoonrxekp.exe
4644	oyoonrxekp.exe
4644	oyoonrxekp.exe
4644	oyoonrxekp.exe
4644	oyoonrxekp.exe
1480	gbjhtbxz.exe
1480	gbjhtbxz.exe
4716	mgkafluwtsthkoh.exe
4716	mgkafluwtsthkoh.exe
1480	gbjhtbxz.exe
4716	mgkafluwtsthkoh.exe
1480	gbjhtbxz.exe
4716	mgkafluwtsthkoh.exe
4716	mgkafluwtsthkoh.exe
4716	mgkafluwtsthkoh.exe
4716	mgkafluwtsthkoh.exe
4716	mgkafluwtsthkoh.exe
1480	gbjhtbxz.exe
1480	gbjhtbxz.exe
1480	gbjhtbxz.exe
1480	gbjhtbxz.exe
4716	mgkafluwtsthkoh.exe
4716	mgkafluwtsthkoh.exe
3520	qfjkpoyzfcwjw.exe
3520	qfjkpoyzfcwjw.exe
3520	qfjkpoyzfcwjw.exe
3520	qfjkpoyzfcwjw.exe
3520	qfjkpoyzfcwjw.exe
3520	qfjkpoyzfcwjw.exe
3520	qfjkpoyzfcwjw.exe
3520	qfjkpoyzfcwjw.exe
3520	qfjkpoyzfcwjw.exe
3520	qfjkpoyzfcwjw.exe
3520	qfjkpoyzfcwjw.exe
3520	qfjkpoyzfcwjw.exe
4716	mgkafluwtsthkoh.exe
4716	mgkafluwtsthkoh.exe
3520	qfjkpoyzfcwjw.exe
3520	qfjkpoyzfcwjw.exe
3520	qfjkpoyzfcwjw.exe
3520	qfjkpoyzfcwjw.exe
4716	mgkafluwtsthkoh.exe
4716	mgkafluwtsthkoh.exe

Suspicious use of FindShellTrayWindow 18 IoCs

Processes:

ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exeoyoonrxekp.exegbjhtbxz.exemgkafluwtsthkoh.exeqfjkpoyzfcwjw.exegbjhtbxz.exe

pid	process
2840	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe
2840	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe
2840	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe
4644	oyoonrxekp.exe
4644	oyoonrxekp.exe
4644	oyoonrxekp.exe
1480	gbjhtbxz.exe
1480	gbjhtbxz.exe
1480	gbjhtbxz.exe
4716	mgkafluwtsthkoh.exe
4716	mgkafluwtsthkoh.exe
4716	mgkafluwtsthkoh.exe
3520	qfjkpoyzfcwjw.exe
3520	qfjkpoyzfcwjw.exe
3520	qfjkpoyzfcwjw.exe
3008	gbjhtbxz.exe
3008	gbjhtbxz.exe
3008	gbjhtbxz.exe

Suspicious use of SendNotifyMessage 18 IoCs

Processes:

ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exeoyoonrxekp.exegbjhtbxz.exemgkafluwtsthkoh.exeqfjkpoyzfcwjw.exegbjhtbxz.exe

pid	process
2840	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe
2840	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe
2840	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe
4644	oyoonrxekp.exe
4644	oyoonrxekp.exe
4644	oyoonrxekp.exe
1480	gbjhtbxz.exe
1480	gbjhtbxz.exe
1480	gbjhtbxz.exe
4716	mgkafluwtsthkoh.exe
4716	mgkafluwtsthkoh.exe
4716	mgkafluwtsthkoh.exe
3520	qfjkpoyzfcwjw.exe
3520	qfjkpoyzfcwjw.exe
3520	qfjkpoyzfcwjw.exe
3008	gbjhtbxz.exe
3008	gbjhtbxz.exe
3008	gbjhtbxz.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exeoyoonrxekp.exe

description	pid	process	target process
PID 2840 wrote to memory of 4644	2840	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe	oyoonrxekp.exe
PID 2840 wrote to memory of 4644	2840	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe	oyoonrxekp.exe
PID 2840 wrote to memory of 4644	2840	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe	oyoonrxekp.exe
PID 2840 wrote to memory of 4716	2840	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe	mgkafluwtsthkoh.exe
PID 2840 wrote to memory of 4716	2840	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe	mgkafluwtsthkoh.exe
PID 2840 wrote to memory of 4716	2840	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe	mgkafluwtsthkoh.exe
PID 2840 wrote to memory of 1480	2840	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe	gbjhtbxz.exe
PID 2840 wrote to memory of 1480	2840	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe	gbjhtbxz.exe
PID 2840 wrote to memory of 1480	2840	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe	gbjhtbxz.exe
PID 2840 wrote to memory of 3520	2840	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe	qfjkpoyzfcwjw.exe
PID 2840 wrote to memory of 3520	2840	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe	qfjkpoyzfcwjw.exe
PID 2840 wrote to memory of 3520	2840	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe	qfjkpoyzfcwjw.exe
PID 4644 wrote to memory of 3008	4644	oyoonrxekp.exe	gbjhtbxz.exe
PID 4644 wrote to memory of 3008	4644	oyoonrxekp.exe	gbjhtbxz.exe
PID 4644 wrote to memory of 3008	4644	oyoonrxekp.exe	gbjhtbxz.exe
PID 2840 wrote to memory of 3576	2840	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe	WINWORD.EXE
PID 2840 wrote to memory of 3576	2840	ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe	WINWORD.EXE

C:\Users\Admin\AppData\Local\Temp\ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.exe
"C:\Users\Admin\AppData\Local\Temp\ff0c7a781d85d81363f385617476e5199791bc9702c323142ec53b7e839b8f98.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:2840
- C:\Windows\SysWOW64\oyoonrxekp.exe
  oyoonrxekp.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:4644
- - C:\Windows\SysWOW64\gbjhtbxz.exe
    C:\Windows\system32\gbjhtbxz.exe
    3⤵
    - Executes dropped EXE
    - Enumerates connected drives
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of SendNotifyMessage
    PID:3008
- C:\Windows\SysWOW64\gbjhtbxz.exe
  gbjhtbxz.exe
  2⤵
  - Executes dropped EXE
  - Enumerates connected drives
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:1480
- C:\Windows\SysWOW64\qfjkpoyzfcwjw.exe
  qfjkpoyzfcwjw.exe
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:3520
- C:\Windows\SysWOW64\mgkafluwtsthkoh.exe
  mgkafluwtsthkoh.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  PID:4716
- 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⤵
  PID:3576

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Hidden Files and Directories

T1158

Registry Run Keys / Startup Folder

T1060

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Disabling Security Tools

T1089

Hidden Files and Directories

T1158

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\gbjhtbxz.exe

Filesize
255KB

MD5
750d5542d9c0ce00dd53b085e579128b

SHA1
a7b05fe867027e6664b855e0e6c93e8fd810ae25

SHA256
e63074526b43781d26d6cc005c5fda19d9f044d07c60796c6361fd241f52cb9a

SHA512
00baa3207a42698f7e5380eaaf2aeb37db8847f3291706126611108c0cb8f59499c3e7d35107d4ba60bf59eb24a6eea22476eb2f4b39a3f91aebe91c8d1fa01e

Download Submit
C:\Windows\SysWOW64\gbjhtbxz.exe

Filesize
255KB

MD5
750d5542d9c0ce00dd53b085e579128b

SHA1
a7b05fe867027e6664b855e0e6c93e8fd810ae25

SHA256
e63074526b43781d26d6cc005c5fda19d9f044d07c60796c6361fd241f52cb9a

SHA512
00baa3207a42698f7e5380eaaf2aeb37db8847f3291706126611108c0cb8f59499c3e7d35107d4ba60bf59eb24a6eea22476eb2f4b39a3f91aebe91c8d1fa01e

Download Submit
C:\Windows\SysWOW64\gbjhtbxz.exe

Filesize
255KB

MD5
750d5542d9c0ce00dd53b085e579128b

SHA1
a7b05fe867027e6664b855e0e6c93e8fd810ae25

SHA256
e63074526b43781d26d6cc005c5fda19d9f044d07c60796c6361fd241f52cb9a

SHA512
00baa3207a42698f7e5380eaaf2aeb37db8847f3291706126611108c0cb8f59499c3e7d35107d4ba60bf59eb24a6eea22476eb2f4b39a3f91aebe91c8d1fa01e

Download Submit
C:\Windows\SysWOW64\mgkafluwtsthkoh.exe

Filesize
255KB

MD5
4d6917f02aa49b74f5c438297a412bb6

SHA1
b688fc8bde0d89c0457d0d901cbaa68ac6139e69

SHA256
2df5bb0c0e8d1a7faf4dd708eb2e77c4629b8b2134bd4bf7734835e02c309094

SHA512
48f259761cdee039f1c55cf6afba01296d11c15158b0e82137e8880af55c3224e88a52a68d819a09c95b1a52e886624a419a95277b3b8d9d7dc3e90bd9ce2188

Download Submit
C:\Windows\SysWOW64\mgkafluwtsthkoh.exe

Filesize
255KB

MD5
4d6917f02aa49b74f5c438297a412bb6

SHA1
b688fc8bde0d89c0457d0d901cbaa68ac6139e69

SHA256
2df5bb0c0e8d1a7faf4dd708eb2e77c4629b8b2134bd4bf7734835e02c309094

SHA512
48f259761cdee039f1c55cf6afba01296d11c15158b0e82137e8880af55c3224e88a52a68d819a09c95b1a52e886624a419a95277b3b8d9d7dc3e90bd9ce2188

Download Submit
C:\Windows\SysWOW64\oyoonrxekp.exe

Filesize
255KB

MD5
5dccf1610e57f617ab3bcc0fd3ed178c

SHA1
a53c7941971fde4df20b167ec9d2f8aec8927983

SHA256
47e8ac55cb5f21d34a82255f9ece2367045491f7b9625279675b2f8bded0444b

SHA512
228152b703f5f72db2e27816c6193d12dbeb1b5267cdf17b7b89dee6ff6901f36fdd9564469c5c6cff0794b9a629bd052c7afa854c5df6310d13494e517f582d

Download Submit
C:\Windows\SysWOW64\oyoonrxekp.exe

Filesize
255KB

MD5
5dccf1610e57f617ab3bcc0fd3ed178c

SHA1
a53c7941971fde4df20b167ec9d2f8aec8927983

SHA256
47e8ac55cb5f21d34a82255f9ece2367045491f7b9625279675b2f8bded0444b

SHA512
228152b703f5f72db2e27816c6193d12dbeb1b5267cdf17b7b89dee6ff6901f36fdd9564469c5c6cff0794b9a629bd052c7afa854c5df6310d13494e517f582d

Download Submit
C:\Windows\SysWOW64\qfjkpoyzfcwjw.exe

Filesize
255KB

MD5
485e6b77d05696621f3576426ab7f138

SHA1
aef9a0069a11c4868e0c9e0c6b19ba5271dc8845

SHA256
117e4f8631a2cc23a837eeb5aa334140443f7bfaff4c3f2721bf013ce672b6b1

SHA512
660dd38c6bfc6eb7678518079ea3bd436247f9f22f73eec956dd050cb0dd45ef898728b296e69390a59dc848dbfb8b96e81929f336d791aede4bff24ab67e4f3

Download Submit
C:\Windows\SysWOW64\qfjkpoyzfcwjw.exe

Filesize
255KB

MD5
485e6b77d05696621f3576426ab7f138

SHA1
aef9a0069a11c4868e0c9e0c6b19ba5271dc8845

SHA256
117e4f8631a2cc23a837eeb5aa334140443f7bfaff4c3f2721bf013ce672b6b1

SHA512
660dd38c6bfc6eb7678518079ea3bd436247f9f22f73eec956dd050cb0dd45ef898728b296e69390a59dc848dbfb8b96e81929f336d791aede4bff24ab67e4f3

Download Submit
memory/1480-138-0x0000000000000000-mapping.dmp

Download
memory/1480-147-0x0000000000400000-0x00000000004A0000-memory.dmp

Filesize
640KB

Download
memory/2840-132-0x0000000000400000-0x00000000004A0000-memory.dmp

Filesize
640KB

Download
memory/2840-149-0x0000000000400000-0x00000000004A0000-memory.dmp

Filesize
640KB

Download
memory/3008-154-0x0000000000400000-0x00000000004A0000-memory.dmp

Filesize
640KB

Download
memory/3008-152-0x0000000000000000-mapping.dmp

Download
memory/3520-142-0x0000000000000000-mapping.dmp

Download
memory/3520-148-0x0000000000400000-0x00000000004A0000-memory.dmp

Filesize
640KB

Download
memory/3520-151-0x0000000000400000-0x00000000004A0000-memory.dmp

Filesize
640KB

Download
memory/3576-155-0x0000000000000000-mapping.dmp

Download
memory/4644-145-0x0000000000400000-0x00000000004A0000-memory.dmp

Filesize
640KB

Download
memory/4644-133-0x0000000000000000-mapping.dmp

Download
memory/4716-146-0x0000000000400000-0x00000000004A0000-memory.dmp

Filesize
640KB

Download
memory/4716-150-0x0000000000400000-0x00000000004A0000-memory.dmp

Filesize
640KB

Download
memory/4716-136-0x0000000000000000-mapping.dmp

Download