b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9

Virtualization/Sandbox Evasion

Processes:

GameLogin.newLoginCycs.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	GameLogin.new
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	LoginCycs.exe

Downloads MZ/PE file
Executes dropped EXE 5 IoCs

Processes:

9377chiyue_Y_mgaz.exeCycsAnimator.exeLoginCycs.exeGameLogin.newLoginCycs.exe

pid process

1932 9377chiyue_Y_mgaz.exe
588 CycsAnimator.exe
1216 LoginCycs.exe
1928 GameLogin.new
2104 LoginCycs.exe

pid	process
1932	9377chiyue_Y_mgaz.exe
588	CycsAnimator.exe
1216	LoginCycs.exe
1928	GameLogin.new
2104	LoginCycs.exe

Checks BIOS information in registry 2 TTPs 4 IoCs

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

Query Registry

System Information Discovery

T1082

Processes:

GameLogin.newLoginCycs.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	GameLogin.new
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	GameLogin.new
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	LoginCycs.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	LoginCycs.exe

Identifies Wine through registry keys 2 TTPs 2 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

Virtualization/Sandbox Evasion

Processes:

GameLogin.newLoginCycs.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Wine	GameLogin.new
Key opened	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Wine	LoginCycs.exe

Loads dropped DLL 46 IoCs

Processes:

b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe9377chiyue_Y_mgaz.exeLoginCycs.exeCycsAnimator.exeGameLogin.newLoginCycs.exe

pid	process
996	b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe
996	b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe
996	b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe
996	b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe
996	b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe
996	b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe
996	b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe
996	b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe
996	b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe
996	b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe
996	b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe
1932	9377chiyue_Y_mgaz.exe
1932	9377chiyue_Y_mgaz.exe
1932	9377chiyue_Y_mgaz.exe
1932	9377chiyue_Y_mgaz.exe
1932	9377chiyue_Y_mgaz.exe
1932	9377chiyue_Y_mgaz.exe
996	b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe
1932	9377chiyue_Y_mgaz.exe
1932	9377chiyue_Y_mgaz.exe
1932	9377chiyue_Y_mgaz.exe
1932	9377chiyue_Y_mgaz.exe
1216	LoginCycs.exe
1216	LoginCycs.exe
588	CycsAnimator.exe
588	CycsAnimator.exe
588	CycsAnimator.exe
1216	LoginCycs.exe
1216	LoginCycs.exe
996	b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe
1928	GameLogin.new
1928	GameLogin.new
2104	LoginCycs.exe
2104	LoginCycs.exe
2104	LoginCycs.exe
996	b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe
996	b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe
996	b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe
996	b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe
996	b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe
996	b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe
996	b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe
996	b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe
996	b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe
996	b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe
996	b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

Processes:

9377chiyue_Y_mgaz.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run	9377chiyue_Y_mgaz.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\CYCSAnimator = "\"C:\\Program Files (x86)\\9377-³àÔÂ´«Ëµ\\CycsAnimator.exe\" \"C:\\Program Files (x86)\\9377-³àÔÂ´«Ëµ\\ChiYue.dll\" 1"	9377chiyue_Y_mgaz.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

GameLogin.newLoginCycs.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	GameLogin.new
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	LoginCycs.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

GameLogin.newLoginCycs.exe

pid process

1928 GameLogin.new
2104 LoginCycs.exe

pid	process
1928	GameLogin.new
2104	LoginCycs.exe

Drops file in Program Files directory 17 IoCs

Processes:

9377chiyue_Y_mgaz.exeLoginCycs.exeGameLogin.newLoginCycs.exeb61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe

description	ioc	process
File created	C:\Program Files (x86)\9377-³àÔÂ´«Ëµ\CYCSToolTip.exe	9377chiyue_Y_mgaz.exe
File created	C:\Program Files (x86)\9377-³àÔÂ´«Ëµ\ChiYue.dll	9377chiyue_Y_mgaz.exe
File created	C:\Program Files (x86)\9377-³àÔÂ´«Ëµ\replay.htm	9377chiyue_Y_mgaz.exe
File created	C:\Program Files (x86)\9377-³àÔÂ´«Ëµ\CycsAnimator.lnk	9377chiyue_Y_mgaz.exe
File opened for modification	C:\Program Files (x86)\9377-³àÔÂ´«Ëµ\LoginCycs.ini	LoginCycs.exe
File opened for modification	C:\Program Files (x86)\9377-³àÔÂ´«Ëµ\LoginCycs.exe	GameLogin.new
File opened for modification	C:\Program Files (x86)\9377-³àÔÂ´«Ëµ\ExpData\Logo.jpg	LoginCycs.exe
File created	C:\Program Files (x86)\AppleMac\uninst.exe	b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe
File created	C:\Program Files (x86)\9377-³àÔÂ´«Ëµ\Lieyan.ico	9377chiyue_Y_mgaz.exe
File created	C:\Program Files (x86)\9377-³àÔÂ´«Ëµ\ExpData\Logo.jpg	LoginCycs.exe
File created	C:\Program Files (x86)\9377-³àÔÂ´«Ëµ\LoginCycs_V5.0.7z	LoginCycs.exe
File created	C:\Program Files (x86)\9377-³àÔÂ´«Ëµ\GameLogin.new	LoginCycs.exe
File opened for modification	C:\Program Files (x86)\9377-³àÔÂ´«Ëµ\LoginCycs.ini	LoginCycs.exe
File created	C:\Program Files (x86)\9377-³àÔÂ´«Ëµ\LoginCycs.exe	9377chiyue_Y_mgaz.exe
File created	C:\Program Files (x86)\9377-³àÔÂ´«Ëµ\CycsAnimator.exe	9377chiyue_Y_mgaz.exe
File opened for modification	C:\Program Files (x86)\9377-³àÔÂ´«Ëµ\LoginCycs.ini	9377chiyue_Y_mgaz.exe
File created	C:\Program Files (x86)\9377-³àÔÂ´«Ëµ\Cycs.ico	9377chiyue_Y_mgaz.exe

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

System Information Discovery
T1082

NSIS installer 10 IoCs

installer

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\nsdB0A.tmp\9377chiyue_Y_mgaz.exe	nsis_installer_1
\Users\Admin\AppData\Local\Temp\nsdB0A.tmp\9377chiyue_Y_mgaz.exe	nsis_installer_2
C:\Users\Admin\AppData\Local\Temp\nsdB0A.tmp\9377chiyue_Y_mgaz.exe	nsis_installer_1
C:\Users\Admin\AppData\Local\Temp\nsdB0A.tmp\9377chiyue_Y_mgaz.exe	nsis_installer_2
C:\Users\Admin\AppData\Local\Temp\nsdB0A.tmp\9377chiyue_Y_mgaz.exe	nsis_installer_1
C:\Users\Admin\AppData\Local\Temp\nsdB0A.tmp\9377chiyue_Y_mgaz.exe	nsis_installer_2
\Users\Admin\AppData\Local\Temp\nsdB0A.tmp\9377chiyue_Y_mgaz.exe	nsis_installer_1
\Users\Admin\AppData\Local\Temp\nsdB0A.tmp\9377chiyue_Y_mgaz.exe	nsis_installer_2
\Users\Admin\AppData\Local\Temp\nsdB0A.tmp\9377chiyue_Y_mgaz.exe	nsis_installer_1
\Users\Admin\AppData\Local\Temp\nsdB0A.tmp\9377chiyue_Y_mgaz.exe	nsis_installer_2

Modifies Internet Explorer settings 1 TTPs 38 IoCs

adware spyware

Modify Registry

Processes:

iexplore.exeLoginCycs.exeIEXPLORE.EXELoginCycs.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{FF8B3271-6B22-11ED-BAA3-DE6E3020A1A7} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	LoginCycs.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	LoginCycs.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Zoom	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main	LoginCycs.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NTPFirstRun = "1"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = 10adaed52fffd801	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "375968333"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\GPU	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\IETld\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Toolbar	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\PageSetup	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main	LoginCycs.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\MFV = 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	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000048ca5449a4d21846ba8a995ea0abd35a00000000020000000000106600000001000020000000bccd6fd3c36330063989020a4a90eb21f48c4818c4293c5924c8e9c2dd4854ca000000000e8000000002000020000000b9fb9d7685881375ab40c00ad1ae12a12e8410e0d52f874a1f83723b410de6fd20000000dc80147f5742ed74348fca8dc0bf2728f91ab0602bbbbd24f9b5f111d299fb47400000009cf842b5cfc4e9e99cd19256379629d48d6365e2ba91e47bbf1cf2436e23c399f11b45109726026c57837e6d7f8e3ffcb3f47743eed3bb5d44ce360426cd026b	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\IntelliForms	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\InternetRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\LowRegistry	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

Processes:

LoginCycs.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\A8985D3A65E5E5C4B2D7D66D40C6DD2FB19C5436	LoginCycs.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\A8985D3A65E5E5C4B2D7D66D40C6DD2FB19C5436\Blob = 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	LoginCycs.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

Processes:

b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exeGameLogin.newLoginCycs.exe

pid	process
996	b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe
996	b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe
996	b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe
996	b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe
996	b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe
996	b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe
1928	GameLogin.new
1928	GameLogin.new
2104	LoginCycs.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

Processes:

AUDIODG.EXEGameLogin.newb61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe

description	pid	process
Token: 33	1624	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	1624	AUDIODG.EXE
Token: 33	1624	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	1624	AUDIODG.EXE
Token: SeDebugPrivilege	1928	GameLogin.new
Token: SeRestorePrivilege	996	b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe
Token: SeBackupPrivilege	996	b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

iexplore.exe

pid process

1696 iexplore.exe

Suspicious use of SetWindowsHookEx 10 IoCs

Processes:

iexplore.exeIEXPLORE.EXELoginCycs.exeLoginCycs.exe

pid	process
1696	iexplore.exe
1696	iexplore.exe
1896	IEXPLORE.EXE
1896	IEXPLORE.EXE
1216	LoginCycs.exe
1216	LoginCycs.exe
1896	IEXPLORE.EXE
1896	IEXPLORE.EXE
2104	LoginCycs.exe
2104	LoginCycs.exe

Suspicious use of WriteProcessMemory 61 IoCs

Processes:

b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exeiexplore.exe9377chiyue_Y_mgaz.exeLoginCycs.exeCycsAnimator.execmd.exeGameLogin.new

description	pid	process	target process
PID 996 wrote to memory of 1696	996	b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe	iexplore.exe
PID 996 wrote to memory of 1696	996	b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe	iexplore.exe
PID 996 wrote to memory of 1696	996	b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe	iexplore.exe
PID 996 wrote to memory of 1696	996	b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe	iexplore.exe
PID 1696 wrote to memory of 1896	1696	iexplore.exe	IEXPLORE.EXE
PID 1696 wrote to memory of 1896	1696	iexplore.exe	IEXPLORE.EXE
PID 1696 wrote to memory of 1896	1696	iexplore.exe	IEXPLORE.EXE
PID 1696 wrote to memory of 1896	1696	iexplore.exe	IEXPLORE.EXE
PID 1696 wrote to memory of 1896	1696	iexplore.exe	IEXPLORE.EXE
PID 1696 wrote to memory of 1896	1696	iexplore.exe	IEXPLORE.EXE
PID 1696 wrote to memory of 1896	1696	iexplore.exe	IEXPLORE.EXE
PID 996 wrote to memory of 1932	996	b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe	9377chiyue_Y_mgaz.exe
PID 996 wrote to memory of 1932	996	b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe	9377chiyue_Y_mgaz.exe
PID 996 wrote to memory of 1932	996	b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe	9377chiyue_Y_mgaz.exe
PID 996 wrote to memory of 1932	996	b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe	9377chiyue_Y_mgaz.exe
PID 996 wrote to memory of 1932	996	b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe	9377chiyue_Y_mgaz.exe
PID 996 wrote to memory of 1932	996	b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe	9377chiyue_Y_mgaz.exe
PID 996 wrote to memory of 1932	996	b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe	9377chiyue_Y_mgaz.exe
PID 1932 wrote to memory of 588	1932	9377chiyue_Y_mgaz.exe	CycsAnimator.exe
PID 1932 wrote to memory of 588	1932	9377chiyue_Y_mgaz.exe	CycsAnimator.exe
PID 1932 wrote to memory of 588	1932	9377chiyue_Y_mgaz.exe	CycsAnimator.exe
PID 1932 wrote to memory of 588	1932	9377chiyue_Y_mgaz.exe	CycsAnimator.exe
PID 1932 wrote to memory of 588	1932	9377chiyue_Y_mgaz.exe	CycsAnimator.exe
PID 1932 wrote to memory of 588	1932	9377chiyue_Y_mgaz.exe	CycsAnimator.exe
PID 1932 wrote to memory of 588	1932	9377chiyue_Y_mgaz.exe	CycsAnimator.exe
PID 1932 wrote to memory of 1216	1932	9377chiyue_Y_mgaz.exe	LoginCycs.exe
PID 1932 wrote to memory of 1216	1932	9377chiyue_Y_mgaz.exe	LoginCycs.exe
PID 1932 wrote to memory of 1216	1932	9377chiyue_Y_mgaz.exe	LoginCycs.exe
PID 1932 wrote to memory of 1216	1932	9377chiyue_Y_mgaz.exe	LoginCycs.exe
PID 1932 wrote to memory of 1216	1932	9377chiyue_Y_mgaz.exe	LoginCycs.exe
PID 1932 wrote to memory of 1216	1932	9377chiyue_Y_mgaz.exe	LoginCycs.exe
PID 1932 wrote to memory of 1216	1932	9377chiyue_Y_mgaz.exe	LoginCycs.exe
PID 1216 wrote to memory of 840	1216	LoginCycs.exe	cmd.exe
PID 1216 wrote to memory of 840	1216	LoginCycs.exe	cmd.exe
PID 1216 wrote to memory of 840	1216	LoginCycs.exe	cmd.exe
PID 1216 wrote to memory of 840	1216	LoginCycs.exe	cmd.exe
PID 1216 wrote to memory of 840	1216	LoginCycs.exe	cmd.exe
PID 1216 wrote to memory of 840	1216	LoginCycs.exe	cmd.exe
PID 1216 wrote to memory of 840	1216	LoginCycs.exe	cmd.exe
PID 588 wrote to memory of 1304	588	CycsAnimator.exe	Explorer.EXE
PID 840 wrote to memory of 1368	840	cmd.exe	netsh.exe
PID 840 wrote to memory of 1368	840	cmd.exe	netsh.exe
PID 840 wrote to memory of 1368	840	cmd.exe	netsh.exe
PID 840 wrote to memory of 1368	840	cmd.exe	netsh.exe
PID 840 wrote to memory of 1368	840	cmd.exe	netsh.exe
PID 840 wrote to memory of 1368	840	cmd.exe	netsh.exe
PID 840 wrote to memory of 1368	840	cmd.exe	netsh.exe
PID 1216 wrote to memory of 1928	1216	LoginCycs.exe	GameLogin.new
PID 1216 wrote to memory of 1928	1216	LoginCycs.exe	GameLogin.new
PID 1216 wrote to memory of 1928	1216	LoginCycs.exe	GameLogin.new
PID 1216 wrote to memory of 1928	1216	LoginCycs.exe	GameLogin.new
PID 1216 wrote to memory of 1928	1216	LoginCycs.exe	GameLogin.new
PID 1216 wrote to memory of 1928	1216	LoginCycs.exe	GameLogin.new
PID 1216 wrote to memory of 1928	1216	LoginCycs.exe	GameLogin.new
PID 1928 wrote to memory of 2104	1928	GameLogin.new	LoginCycs.exe
PID 1928 wrote to memory of 2104	1928	GameLogin.new	LoginCycs.exe
PID 1928 wrote to memory of 2104	1928	GameLogin.new	LoginCycs.exe
PID 1928 wrote to memory of 2104	1928	GameLogin.new	LoginCycs.exe
PID 1928 wrote to memory of 2104	1928	GameLogin.new	LoginCycs.exe
PID 1928 wrote to memory of 2104	1928	GameLogin.new	LoginCycs.exe
PID 1928 wrote to memory of 2104	1928	GameLogin.new	LoginCycs.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1304

C:\Users\Admin\AppData\Local\Temp\b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe
"C:\Users\Admin\AppData\Local\Temp\b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe"
2⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:996

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" http://f.shuianshanba.com/b61426b61b8cdfa3d70c55176737fa76305c20e33a9c89f3e0035aaeac7266a9.exe/40.jpg
3⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1696

C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1696 CREDAT:275457 /prefetch:2
4⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1896

C:\Users\Admin\AppData\Local\Temp\nsdB0A.tmp\9377chiyue_Y_mgaz.exe
9377chiyue_Y_mgaz.exe
3⤵
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:1932

C:\Program Files (x86)\9377-³àÔÂ´«Ëµ\CycsAnimator.exe
"C:\Program Files (x86)\9377-³àÔÂ´«Ëµ\CycsAnimator.exe" "C:\Program Files (x86)\9377-³àÔÂ´«Ëµ\ChiYue.dll" 1
4⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:588

C:\Program Files (x86)\9377-³àÔÂ´«Ëµ\LoginCycs.exe
"C:\Program Files (x86)\9377-³àÔÂ´«Ëµ\LoginCycs.exe"
4⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1216

C:\Windows\SysWOW64\cmd.exe
cmd.exe /c ""netsh" interface tcp set global autotuninglevel=disabled"
5⤵
- Suspicious use of WriteProcessMemory
PID:840

C:\Windows\SysWOW64\netsh.exe
"netsh" interface tcp set global autotuninglevel=disabled
6⤵
PID:1368

C:\Program Files (x86)\9377-³àÔÂ´«Ëµ\GameLogin.new
"C:\Program Files (x86)\9377-³àÔÂ´«Ëµ\GameLogin.new" "C:\Program Files (x86)\9377-³àÔÂ´«Ëµ\LoginCycs.exe"
5⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Executes dropped EXE
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Loads dropped DLL
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1928

C:\Program Files (x86)\9377-³àÔÂ´«Ëµ\LoginCycs.exe
"C:\Program Files (x86)\9377-³àÔÂ´«Ëµ\LoginCycs.exe"
6⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Executes dropped EXE
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Loads dropped DLL
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:2104

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x55c
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1624

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Install Root Certificate

T1130

Modify Registry

Virtualization/Sandbox Evasion

Credential Access

Discovery

Query Registry

System Information Discovery

T1082

Virtualization/Sandbox Evasion