1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb

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

1744 9377chiyue_Y_mgaz.exe
672 CycsAnimator.exe
540 LoginCycs.exe
1352 GameLogin.new
1404 LoginCycs.exe

pid	process
1744	9377chiyue_Y_mgaz.exe
672	CycsAnimator.exe
540	LoginCycs.exe
1352	GameLogin.new
1404	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:

1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe9377chiyue_Y_mgaz.exeLoginCycs.exeCycsAnimator.exeGameLogin.newLoginCycs.exe

pid	process
1492	1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe
1492	1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe
1492	1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe
1492	1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe
1492	1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe
1492	1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe
1492	1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe
1492	1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe
1492	1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe
1492	1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe
1492	1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe
1744	9377chiyue_Y_mgaz.exe
1744	9377chiyue_Y_mgaz.exe
1744	9377chiyue_Y_mgaz.exe
1744	9377chiyue_Y_mgaz.exe
1744	9377chiyue_Y_mgaz.exe
1744	9377chiyue_Y_mgaz.exe
1492	1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe
1744	9377chiyue_Y_mgaz.exe
1744	9377chiyue_Y_mgaz.exe
1744	9377chiyue_Y_mgaz.exe
1744	9377chiyue_Y_mgaz.exe
540	LoginCycs.exe
540	LoginCycs.exe
672	CycsAnimator.exe
672	CycsAnimator.exe
672	CycsAnimator.exe
540	LoginCycs.exe
540	LoginCycs.exe
1492	1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe
1352	GameLogin.new
1352	GameLogin.new
1404	LoginCycs.exe
1404	LoginCycs.exe
1492	1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe
1404	LoginCycs.exe
1492	1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe
1492	1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe
1492	1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe
1492	1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe
1492	1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe
1492	1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe
1492	1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe
1492	1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe
1492	1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe
1492	1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.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
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
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run	9377chiyue_Y_mgaz.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

LoginCycs.exeGameLogin.new

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

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

GameLogin.newLoginCycs.exe

pid process

1352 GameLogin.new
1404 LoginCycs.exe

pid	process
1352	GameLogin.new
1404	LoginCycs.exe

Drops file in Program Files directory 17 IoCs

Processes:

9377chiyue_Y_mgaz.exeLoginCycs.exeGameLogin.newLoginCycs.exe1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe

description	ioc	process
File created	C:\Program Files (x86)\9377-³àÔÂ´«Ëµ\Lieyan.ico	9377chiyue_Y_mgaz.exe
File created	C:\Program Files (x86)\9377-³àÔÂ´«Ëµ\CycsAnimator.lnk	9377chiyue_Y_mgaz.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.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)\MusicForMac\uninst.exe	1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe
File created	C:\Program Files (x86)\9377-³àÔÂ´«Ëµ\ChiYue.dll	9377chiyue_Y_mgaz.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_V5.0.7z	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 created	C:\Program Files (x86)\9377-³àÔÂ´«Ëµ\replay.htm	9377chiyue_Y_mgaz.exe
File created	C:\Program Files (x86)\9377-³àÔÂ´«Ëµ\ExpData\Logo.jpg	LoginCycs.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\CYCSToolTip.exe	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\nsi1009.tmp\9377chiyue_Y_mgaz.exe	nsis_installer_1
\Users\Admin\AppData\Local\Temp\nsi1009.tmp\9377chiyue_Y_mgaz.exe	nsis_installer_2
C:\Users\Admin\AppData\Local\Temp\nsi1009.tmp\9377chiyue_Y_mgaz.exe	nsis_installer_1
C:\Users\Admin\AppData\Local\Temp\nsi1009.tmp\9377chiyue_Y_mgaz.exe	nsis_installer_2
\Users\Admin\AppData\Local\Temp\nsi1009.tmp\9377chiyue_Y_mgaz.exe	nsis_installer_1
\Users\Admin\AppData\Local\Temp\nsi1009.tmp\9377chiyue_Y_mgaz.exe	nsis_installer_2
C:\Users\Admin\AppData\Local\Temp\nsi1009.tmp\9377chiyue_Y_mgaz.exe	nsis_installer_1
C:\Users\Admin\AppData\Local\Temp\nsi1009.tmp\9377chiyue_Y_mgaz.exe	nsis_installer_2
\Users\Admin\AppData\Local\Temp\nsi1009.tmp\9377chiyue_Y_mgaz.exe	nsis_installer_1
\Users\Admin\AppData\Local\Temp\nsi1009.tmp\9377chiyue_Y_mgaz.exe	nsis_installer_2

Modifies Internet Explorer settings 1 TTPs 38 IoCs

adware spyware

Modify Registry

Processes:

iexplore.exeIEXPLORE.EXELoginCycs.exeLoginCycs.exe

description	ioc	process
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\IntelliForms	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\TabbedBrowsing\NewTabPage	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\InternetRegistry	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 (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\Main	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	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{31DA8FA1-6B23-11ED-A03D-460E09B1FADA} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no"	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\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser	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\Main	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main	LoginCycs.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	LoginCycs.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "375968417"	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\Zoom	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\WindowsSearch\Version = "WS not running"	LoginCycs.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\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\Recovery\PendingRecovery	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\Main	LoginCycs.exe
Key created	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\DecayDateQueue = 01000000d08c9ddf0115d1118c7a00c04fc297eb0100000048ca5449a4d21846ba8a995ea0abd35a000000000200000000001066000000010000200000007a876f8f9a5b8d72e2225d3769f4dc9367d0e172c7402086cf3c18ae8b62e32b000000000e8000000002000020000000dba994cbdbbfabde34886c43c941ef9f3939e5097f2750870e6c7b5cc240cd8a200000001742ae0b88c146432831cd0b96cd646819362a13cd971c5f2edfee3887b6f99c400000002b8b49763d6b6924cc9b89a165ffd094885dab60b4b261a8620e520e551b97949b047563694cf4958d856d6e4305b022ed6e8ae7b33cf53974ce6332b3efa8cf	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\TabbedBrowsing\NewTabPage\LastProcessed = a059030830ffd801	iexplore.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 (int)	\REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	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:

1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exeGameLogin.newLoginCycs.exe

pid	process
1492	1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe
1492	1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe
1492	1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe
1492	1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe
1492	1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe
1492	1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe
1352	GameLogin.new
1352	GameLogin.new
1404	LoginCycs.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

Processes:

AUDIODG.EXEGameLogin.new1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe

description	pid	process
Token: 33	1112	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	1112	AUDIODG.EXE
Token: 33	1112	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	1112	AUDIODG.EXE
Token: SeDebugPrivilege	1352	GameLogin.new
Token: SeRestorePrivilege	1492	1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe
Token: SeBackupPrivilege	1492	1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

iexplore.exe

pid process

1640 iexplore.exe

Suspicious use of SetWindowsHookEx 10 IoCs

Processes:

iexplore.exeIEXPLORE.EXELoginCycs.exeLoginCycs.exe

pid	process
1640	iexplore.exe
1640	iexplore.exe
1600	IEXPLORE.EXE
1600	IEXPLORE.EXE
1600	IEXPLORE.EXE
1600	IEXPLORE.EXE
540	LoginCycs.exe
540	LoginCycs.exe
1404	LoginCycs.exe
1404	LoginCycs.exe

Suspicious use of WriteProcessMemory 61 IoCs

Processes:

1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exeiexplore.exe9377chiyue_Y_mgaz.exeLoginCycs.exeCycsAnimator.execmd.exeGameLogin.new

description	pid	process	target process
PID 1492 wrote to memory of 1640	1492	1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe	iexplore.exe
PID 1492 wrote to memory of 1640	1492	1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe	iexplore.exe
PID 1492 wrote to memory of 1640	1492	1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe	iexplore.exe
PID 1492 wrote to memory of 1640	1492	1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe	iexplore.exe
PID 1640 wrote to memory of 1600	1640	iexplore.exe	IEXPLORE.EXE
PID 1640 wrote to memory of 1600	1640	iexplore.exe	IEXPLORE.EXE
PID 1640 wrote to memory of 1600	1640	iexplore.exe	IEXPLORE.EXE
PID 1640 wrote to memory of 1600	1640	iexplore.exe	IEXPLORE.EXE
PID 1640 wrote to memory of 1600	1640	iexplore.exe	IEXPLORE.EXE
PID 1640 wrote to memory of 1600	1640	iexplore.exe	IEXPLORE.EXE
PID 1640 wrote to memory of 1600	1640	iexplore.exe	IEXPLORE.EXE
PID 1492 wrote to memory of 1744	1492	1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe	9377chiyue_Y_mgaz.exe
PID 1492 wrote to memory of 1744	1492	1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe	9377chiyue_Y_mgaz.exe
PID 1492 wrote to memory of 1744	1492	1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe	9377chiyue_Y_mgaz.exe
PID 1492 wrote to memory of 1744	1492	1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe	9377chiyue_Y_mgaz.exe
PID 1492 wrote to memory of 1744	1492	1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe	9377chiyue_Y_mgaz.exe
PID 1492 wrote to memory of 1744	1492	1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe	9377chiyue_Y_mgaz.exe
PID 1492 wrote to memory of 1744	1492	1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe	9377chiyue_Y_mgaz.exe
PID 1744 wrote to memory of 672	1744	9377chiyue_Y_mgaz.exe	CycsAnimator.exe
PID 1744 wrote to memory of 672	1744	9377chiyue_Y_mgaz.exe	CycsAnimator.exe
PID 1744 wrote to memory of 672	1744	9377chiyue_Y_mgaz.exe	CycsAnimator.exe
PID 1744 wrote to memory of 672	1744	9377chiyue_Y_mgaz.exe	CycsAnimator.exe
PID 1744 wrote to memory of 672	1744	9377chiyue_Y_mgaz.exe	CycsAnimator.exe
PID 1744 wrote to memory of 672	1744	9377chiyue_Y_mgaz.exe	CycsAnimator.exe
PID 1744 wrote to memory of 672	1744	9377chiyue_Y_mgaz.exe	CycsAnimator.exe
PID 1744 wrote to memory of 540	1744	9377chiyue_Y_mgaz.exe	LoginCycs.exe
PID 1744 wrote to memory of 540	1744	9377chiyue_Y_mgaz.exe	LoginCycs.exe
PID 1744 wrote to memory of 540	1744	9377chiyue_Y_mgaz.exe	LoginCycs.exe
PID 1744 wrote to memory of 540	1744	9377chiyue_Y_mgaz.exe	LoginCycs.exe
PID 1744 wrote to memory of 540	1744	9377chiyue_Y_mgaz.exe	LoginCycs.exe
PID 1744 wrote to memory of 540	1744	9377chiyue_Y_mgaz.exe	LoginCycs.exe
PID 1744 wrote to memory of 540	1744	9377chiyue_Y_mgaz.exe	LoginCycs.exe
PID 540 wrote to memory of 1704	540	LoginCycs.exe	cmd.exe
PID 540 wrote to memory of 1704	540	LoginCycs.exe	cmd.exe
PID 540 wrote to memory of 1704	540	LoginCycs.exe	cmd.exe
PID 540 wrote to memory of 1704	540	LoginCycs.exe	cmd.exe
PID 540 wrote to memory of 1704	540	LoginCycs.exe	cmd.exe
PID 540 wrote to memory of 1704	540	LoginCycs.exe	cmd.exe
PID 540 wrote to memory of 1704	540	LoginCycs.exe	cmd.exe
PID 672 wrote to memory of 1424	672	CycsAnimator.exe	Explorer.EXE
PID 1704 wrote to memory of 1504	1704	cmd.exe	netsh.exe
PID 1704 wrote to memory of 1504	1704	cmd.exe	netsh.exe
PID 1704 wrote to memory of 1504	1704	cmd.exe	netsh.exe
PID 1704 wrote to memory of 1504	1704	cmd.exe	netsh.exe
PID 1704 wrote to memory of 1504	1704	cmd.exe	netsh.exe
PID 1704 wrote to memory of 1504	1704	cmd.exe	netsh.exe
PID 1704 wrote to memory of 1504	1704	cmd.exe	netsh.exe
PID 540 wrote to memory of 1352	540	LoginCycs.exe	GameLogin.new
PID 540 wrote to memory of 1352	540	LoginCycs.exe	GameLogin.new
PID 540 wrote to memory of 1352	540	LoginCycs.exe	GameLogin.new
PID 540 wrote to memory of 1352	540	LoginCycs.exe	GameLogin.new
PID 540 wrote to memory of 1352	540	LoginCycs.exe	GameLogin.new
PID 540 wrote to memory of 1352	540	LoginCycs.exe	GameLogin.new
PID 540 wrote to memory of 1352	540	LoginCycs.exe	GameLogin.new
PID 1352 wrote to memory of 1404	1352	GameLogin.new	LoginCycs.exe
PID 1352 wrote to memory of 1404	1352	GameLogin.new	LoginCycs.exe
PID 1352 wrote to memory of 1404	1352	GameLogin.new	LoginCycs.exe
PID 1352 wrote to memory of 1404	1352	GameLogin.new	LoginCycs.exe
PID 1352 wrote to memory of 1404	1352	GameLogin.new	LoginCycs.exe
PID 1352 wrote to memory of 1404	1352	GameLogin.new	LoginCycs.exe
PID 1352 wrote to memory of 1404	1352	GameLogin.new	LoginCycs.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1424

C:\Users\Admin\AppData\Local\Temp\1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe
"C:\Users\Admin\AppData\Local\Temp\1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe"
2⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1492

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" http://f.shuianshanba.com/1965206ef07cbea620f0de28bb614b82f8072033a38b309eb530ebf9563112eb.exe/40.jpg
3⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1640

C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1640 CREDAT:275457 /prefetch:2
4⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1600

C:\Users\Admin\AppData\Local\Temp\nsi1009.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:1744

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:672

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:540

C:\Windows\SysWOW64\cmd.exe
cmd.exe /c ""netsh" interface tcp set global autotuninglevel=disabled"
5⤵
- Suspicious use of WriteProcessMemory
PID:1704

C:\Windows\SysWOW64\netsh.exe
"netsh" interface tcp set global autotuninglevel=disabled
6⤵
PID:1504

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:1352

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:1404

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x57c
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1112

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