bf97b76f50fab5a53364e0e3bed4da079ae5457885215f1aa999991549281fa4

Analysis

max time kernel
150s
max time network
136s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
26/12/2023, 04:48

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General

Target

557f33ae0fcee2be97b86b7e7eecf890.exe
Size

497KB
MD5

557f33ae0fcee2be97b86b7e7eecf890
SHA1

2ced59d2e44e1099771c9a4a0a01a9cb6f7ed198
SHA256

bf97b76f50fab5a53364e0e3bed4da079ae5457885215f1aa999991549281fa4
SHA512

2cdd737271106fa78990f7d2753d48d2ae5c4a27afb7aa070ca373905ed5e6110fbab8aa4946410b2e1b57807590953bbafb0dd822f95f1954b45f6eb57da015
SSDEEP

6144:UZfec9EbXDk6RkdKAE2EBE2EJuHOLE2EBE2EDnmy+g4H:UZWtI6RkAMwOGMD2

Score

10^/10

evasion persistence

Malware Config

Signatures

Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1"	regedit.exe

Blocks application from running via registry modification 17 IoCs

Adds application to list of disallowed applications.

evasion

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\15 = "KAVStart.EXE"	regedit.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun = "1"	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\2 = "RfwMain.exe"	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\3 = "Rfwsrv.exe"	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\7 = "RavStub.exe"	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\12 = "KPFW32X.EXE"	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\4 = "RavMoD.exe"	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\9 = "Rav.exe"	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\11 = "KPFW32.EXE"	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\14 = "KAV32.EXE"	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\1 = "avp.exe"	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\5 = "CCenter.exe"	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\6 = "RavMon.exe"	regedit.exe
Key created	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\8 = "RavService.exe"	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\10 = "rfwcfg.exe"	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1603059206-2004189698-4139800220-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\13 = "KAVPFW.EXE"	regedit.exe

Sets file execution options in registry 2 TTPs 20 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\regedit.exe	regedit.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Rfwsrv.exe	regedit.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Rfwsrv.exe\Debugger = "D:\\RECYCLER\\????8.exe"	regedit.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\RavMoD.exe	regedit.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avp.exe\Debugger = "D:\\RECYCLER\\????8.exe"	regedit.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\360tray.exe\Debugger = "D:\\RECYCLER\\????8.exe"	regedit.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\RfwMain.exe	regedit.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\RavMoD.exe\Debugger = "D:\\RECYCLER\\????8.exe"	regedit.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Rav.exe\Debugger = "D:\\RECYCLER\\????8.exe"	regedit.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\360Safe.exe	regedit.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\360tray.exe	regedit.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KAVStart.EXE	regedit.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KAVStart.EXE\Debugger = "D:\\RECYCLER\\????8.exe"	regedit.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\taskmgr.exe	regedit.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\taskmgr.exe\Debugger = "D:\\RECYCLER\\????8.exe"	regedit.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\regedit.exe\Debugger = "D:\\RECYCLER\\????8.exe"	regedit.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\RfwMain.exe\Debugger = "D:\\RECYCLER\\????8.exe"	regedit.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\avp.exe	regedit.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Rav.exe	regedit.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\360Safe.exe\Debugger = "D:\\RECYCLER\\????8.exe"	regedit.exe

Executes dropped EXE 1 IoCs

pid	Process
368	KavUpda.exe

Loads dropped DLL 2 IoCs

pid	Process
2512	557f33ae0fcee2be97b86b7e7eecf890.exe
2512	557f33ae0fcee2be97b86b7e7eecf890.exe

Drops autorun.inf file 1 TTPs 2 IoCs

Malware can abuse Windows Autorun to spread further via attached volumes.

Replication Through Removable Media

T1091

description	ioc	Process
File opened for modification	F:\Autorun.inf	KavUpda.exe
File opened for modification	C:\Autorun.inf	KavUpda.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\WordRes	557f33ae0fcee2be97b86b7e7eecf890.exe
File opened for modification	C:\Windows\SysWOW64\Folderdir	557f33ae0fcee2be97b86b7e7eecf890.exe
File created	C:\Windows\SysWOW64\Option.bat	557f33ae0fcee2be97b86b7e7eecf890.exe
File opened for modification	C:\Windows\SysWOW64\Option.bat	KavUpda.exe

Drops file in Program Files directory 11 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\7-Zip\7zG.exe	557f33ae0fcee2be97b86b7e7eecf890.exe
File opened for modification	C:\Program Files\7-Zip\Uninstall.exe	557f33ae0fcee2be97b86b7e7eecf890.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\106.0.5249.119\chrome_pwa_launcher.exe	557f33ae0fcee2be97b86b7e7eecf890.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\106.0.5249.119\elevation_service.exe	557f33ae0fcee2be97b86b7e7eecf890.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\106.0.5249.119\notification_helper.exe	557f33ae0fcee2be97b86b7e7eecf890.exe
File opened for modification	C:\Program Files\SearchUse.doc	557f33ae0fcee2be97b86b7e7eecf890.exe
File opened for modification	C:\Program Files\7-Zip\7z.exe	557f33ae0fcee2be97b86b7e7eecf890.exe
File opened for modification	C:\Program Files\7-Zip\7zFM.exe	557f33ae0fcee2be97b86b7e7eecf890.exe
File opened for modification	C:\Program Files\DVD Maker\DVDMaker.exe	557f33ae0fcee2be97b86b7e7eecf890.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\chrome.exe	557f33ae0fcee2be97b86b7e7eecf890.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\chrome_proxy.exe	557f33ae0fcee2be97b86b7e7eecf890.exe

Drops file in Windows directory 10 IoCs

description	ioc	Process
File created	C:\Windows\Help\HelpCat.exe	557f33ae0fcee2be97b86b7e7eecf890.exe
File opened for modification	C:\Windows\Help\HelpCat.exe	557f33ae0fcee2be97b86b7e7eecf890.exe
File created	C:\Windows\Sysinf.bat	557f33ae0fcee2be97b86b7e7eecf890.exe
File opened for modification	C:\Windows\system\KavUpda.exe	KavUpda.exe
File opened for modification	C:\Windows\Sysinf.bat	KavUpda.exe
File created	C:\Windows\system\KavUpda.exe	557f33ae0fcee2be97b86b7e7eecf890.exe
File created	C:\Windows\regedt32.sys	557f33ae0fcee2be97b86b7e7eecf890.exe
File opened for modification	C:\Windows\regedt32.sys	KavUpda.exe
File created	C:\Windows\regedt32.sys	KavUpda.exe
File opened for modification	C:\Windows\system\KavUpda.exe	557f33ae0fcee2be97b86b7e7eecf890.exe

Launches sc.exe 8 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
476	sc.exe
904	sc.exe
392	sc.exe
2292	sc.exe
2296	sc.exe
1660	sc.exe
1580	sc.exe
588	sc.exe

Runs net.exe

Runs regedit.exe 1 IoCs

pid	Process
1452	regedit.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: 33	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: SeIncBasePriorityPrivilege	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: 33	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: SeIncBasePriorityPrivilege	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: 33	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: SeIncBasePriorityPrivilege	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: 33	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: SeIncBasePriorityPrivilege	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: 33	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: SeIncBasePriorityPrivilege	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: 33	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: SeIncBasePriorityPrivilege	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: 33	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: SeIncBasePriorityPrivilege	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: 33	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: SeIncBasePriorityPrivilege	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: 33	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: SeIncBasePriorityPrivilege	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: 33	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: SeIncBasePriorityPrivilege	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: 33	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: SeIncBasePriorityPrivilege	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: 33	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: SeIncBasePriorityPrivilege	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: 33	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: SeIncBasePriorityPrivilege	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: 33	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: SeIncBasePriorityPrivilege	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: 33	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: SeIncBasePriorityPrivilege	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: 33	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: SeIncBasePriorityPrivilege	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: 33	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: SeIncBasePriorityPrivilege	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: 33	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: SeIncBasePriorityPrivilege	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: 33	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: SeIncBasePriorityPrivilege	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: 33	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: SeIncBasePriorityPrivilege	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: 33	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: SeIncBasePriorityPrivilege	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: 33	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: SeIncBasePriorityPrivilege	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: 33	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: SeIncBasePriorityPrivilege	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: 33	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: SeIncBasePriorityPrivilege	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: 33	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: SeIncBasePriorityPrivilege	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: 33	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: SeIncBasePriorityPrivilege	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: 33	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: SeIncBasePriorityPrivilege	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: 33	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: SeIncBasePriorityPrivilege	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: 33	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: SeIncBasePriorityPrivilege	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: 33	368	KavUpda.exe
Token: SeIncBasePriorityPrivilege	368	KavUpda.exe
Token: 33	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: SeIncBasePriorityPrivilege	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: 33	2512	557f33ae0fcee2be97b86b7e7eecf890.exe
Token: SeIncBasePriorityPrivilege	2512	557f33ae0fcee2be97b86b7e7eecf890.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2512	557f33ae0fcee2be97b86b7e7eecf890.exe
368	KavUpda.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2512 wrote to memory of 2224	2512	557f33ae0fcee2be97b86b7e7eecf890.exe	28
PID 2512 wrote to memory of 2224	2512	557f33ae0fcee2be97b86b7e7eecf890.exe	28
PID 2512 wrote to memory of 2224	2512	557f33ae0fcee2be97b86b7e7eecf890.exe	28
PID 2512 wrote to memory of 2224	2512	557f33ae0fcee2be97b86b7e7eecf890.exe	28
PID 2512 wrote to memory of 2368	2512	557f33ae0fcee2be97b86b7e7eecf890.exe	30
PID 2512 wrote to memory of 2368	2512	557f33ae0fcee2be97b86b7e7eecf890.exe	30
PID 2512 wrote to memory of 2368	2512	557f33ae0fcee2be97b86b7e7eecf890.exe	30
PID 2512 wrote to memory of 2368	2512	557f33ae0fcee2be97b86b7e7eecf890.exe	30
PID 2368 wrote to memory of 2728	2368	net.exe	32
PID 2368 wrote to memory of 2728	2368	net.exe	32
PID 2368 wrote to memory of 2728	2368	net.exe	32
PID 2368 wrote to memory of 2728	2368	net.exe	32
PID 2512 wrote to memory of 2848	2512	557f33ae0fcee2be97b86b7e7eecf890.exe	33
PID 2512 wrote to memory of 2848	2512	557f33ae0fcee2be97b86b7e7eecf890.exe	33
PID 2512 wrote to memory of 2848	2512	557f33ae0fcee2be97b86b7e7eecf890.exe	33
PID 2512 wrote to memory of 2848	2512	557f33ae0fcee2be97b86b7e7eecf890.exe	33
PID 2512 wrote to memory of 2732	2512	557f33ae0fcee2be97b86b7e7eecf890.exe	35
PID 2512 wrote to memory of 2732	2512	557f33ae0fcee2be97b86b7e7eecf890.exe	35
PID 2512 wrote to memory of 2732	2512	557f33ae0fcee2be97b86b7e7eecf890.exe	35
PID 2512 wrote to memory of 2732	2512	557f33ae0fcee2be97b86b7e7eecf890.exe	35
PID 2512 wrote to memory of 2704	2512	557f33ae0fcee2be97b86b7e7eecf890.exe	36
PID 2512 wrote to memory of 2704	2512	557f33ae0fcee2be97b86b7e7eecf890.exe	36
PID 2512 wrote to memory of 2704	2512	557f33ae0fcee2be97b86b7e7eecf890.exe	36
PID 2512 wrote to memory of 2704	2512	557f33ae0fcee2be97b86b7e7eecf890.exe	36
PID 2512 wrote to memory of 2712	2512	557f33ae0fcee2be97b86b7e7eecf890.exe	37
PID 2512 wrote to memory of 2712	2512	557f33ae0fcee2be97b86b7e7eecf890.exe	37
PID 2512 wrote to memory of 2712	2512	557f33ae0fcee2be97b86b7e7eecf890.exe	37
PID 2512 wrote to memory of 2712	2512	557f33ae0fcee2be97b86b7e7eecf890.exe	37
PID 2512 wrote to memory of 2880	2512	557f33ae0fcee2be97b86b7e7eecf890.exe	40
PID 2512 wrote to memory of 2880	2512	557f33ae0fcee2be97b86b7e7eecf890.exe	40
PID 2512 wrote to memory of 2880	2512	557f33ae0fcee2be97b86b7e7eecf890.exe	40
PID 2512 wrote to memory of 2880	2512	557f33ae0fcee2be97b86b7e7eecf890.exe	40
PID 2512 wrote to memory of 2916	2512	557f33ae0fcee2be97b86b7e7eecf890.exe	42
PID 2512 wrote to memory of 2916	2512	557f33ae0fcee2be97b86b7e7eecf890.exe	42
PID 2512 wrote to memory of 2916	2512	557f33ae0fcee2be97b86b7e7eecf890.exe	42
PID 2512 wrote to memory of 2916	2512	557f33ae0fcee2be97b86b7e7eecf890.exe	42
PID 2732 wrote to memory of 2340	2732	cmd.exe	45
PID 2732 wrote to memory of 2340	2732	cmd.exe	45
PID 2732 wrote to memory of 2340	2732	cmd.exe	45
PID 2732 wrote to memory of 2340	2732	cmd.exe	45
PID 2704 wrote to memory of 2624	2704	cmd.exe	47
PID 2704 wrote to memory of 2624	2704	cmd.exe	47
PID 2704 wrote to memory of 2624	2704	cmd.exe	47
PID 2704 wrote to memory of 2624	2704	cmd.exe	47
PID 2512 wrote to memory of 2756	2512	557f33ae0fcee2be97b86b7e7eecf890.exe	46
PID 2512 wrote to memory of 2756	2512	557f33ae0fcee2be97b86b7e7eecf890.exe	46
PID 2512 wrote to memory of 2756	2512	557f33ae0fcee2be97b86b7e7eecf890.exe	46
PID 2512 wrote to memory of 2756	2512	557f33ae0fcee2be97b86b7e7eecf890.exe	46
PID 2512 wrote to memory of 2576	2512	557f33ae0fcee2be97b86b7e7eecf890.exe	49
PID 2512 wrote to memory of 2576	2512	557f33ae0fcee2be97b86b7e7eecf890.exe	49
PID 2512 wrote to memory of 2576	2512	557f33ae0fcee2be97b86b7e7eecf890.exe	49
PID 2512 wrote to memory of 2576	2512	557f33ae0fcee2be97b86b7e7eecf890.exe	49
PID 2880 wrote to memory of 2620	2880	net.exe	50
PID 2880 wrote to memory of 2620	2880	net.exe	50
PID 2880 wrote to memory of 2620	2880	net.exe	50
PID 2880 wrote to memory of 2620	2880	net.exe	50
PID 2712 wrote to memory of 2156	2712	net.exe	54
PID 2712 wrote to memory of 2156	2712	net.exe	54
PID 2712 wrote to memory of 2156	2712	net.exe	54
PID 2712 wrote to memory of 2156	2712	net.exe	54
PID 2916 wrote to memory of 2872	2916	net.exe	52
PID 2916 wrote to memory of 2872	2916	net.exe	52
PID 2916 wrote to memory of 2872	2916	net.exe	52
PID 2916 wrote to memory of 2872	2916	net.exe	52

Views/modifies file attributes 1 TTPs 13 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2572	attrib.exe
568	attrib.exe
1500	attrib.exe
2836	attrib.exe
2724	attrib.exe
2936	attrib.exe
1808	attrib.exe
2652	attrib.exe
2892	attrib.exe
2344	attrib.exe
544	attrib.exe
3056	attrib.exe
1188	attrib.exe

C:\Users\Admin\AppData\Local\Temp\557f33ae0fcee2be97b86b7e7eecf890.exe
"C:\Users\Admin\AppData\Local\Temp\557f33ae0fcee2be97b86b7e7eecf890.exe"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2512
- C:\Windows\SysWOW64\cmd.exe
  cmd /c C:\Windows\system32\Option.bat
  2⤵
  PID:2224
- C:\Windows\SysWOW64\net.exe
  net.exe start schedule /y
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2368
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 start schedule /y
    3⤵
    PID:2728
- C:\Windows\SysWOW64\At.exe
  At.exe 11:40:00 PM C:\Windows\Help\HelpCat.exe
  2⤵
  PID:2848
- C:\Windows\SysWOW64\cmd.exe
  cmd /c at 11:39:03 PM C:\Windows\Sysinf.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2732
- - C:\Windows\SysWOW64\at.exe
    at 11:39:03 PM C:\Windows\Sysinf.bat
    3⤵
    PID:2340
- C:\Windows\SysWOW64\cmd.exe
  cmd /c at 11:42:03 PM C:\Windows\Sysinf.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2704
- - C:\Windows\SysWOW64\at.exe
    at 11:42:03 PM C:\Windows\Sysinf.bat
    3⤵
    PID:2624
- C:\Windows\SysWOW64\net.exe
  net.exe stop wscsvc /y
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2712
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop wscsvc /y
    3⤵
    PID:2156
- C:\Windows\SysWOW64\net.exe
  net.exe stop sharedaccess /y
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2880
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop sharedaccess /y
    3⤵
    PID:2620
- C:\Windows\SysWOW64\net.exe
  net.exe stop wuauserv /y
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2916
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop wuauserv /y
    3⤵
    PID:2872
- C:\Windows\SysWOW64\net.exe
  net.exe stop srservice /y
  2⤵
  PID:2756
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop srservice /y
    3⤵
    PID:2184
- C:\Windows\SysWOW64\net.exe
  net.exe stop 360timeprot /y
  2⤵
  PID:2576
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop 360timeprot /y
    3⤵
    PID:2556
- C:\Windows\SysWOW64\sc.exe
  C:\Windows\system32\sc.exe config srservice start= disabled
  2⤵
  - Launches sc.exe
  PID:1660
- C:\Windows\SysWOW64\sc.exe
  C:\Windows\system32\sc.exe config SharedAccess start= disabled
  2⤵
  - Launches sc.exe
  PID:1580
- C:\Windows\SysWOW64\sc.exe
  C:\Windows\system32\sc.exe config wscsvc start= disabled
  2⤵
  - Launches sc.exe
  PID:588
- C:\Windows\SysWOW64\sc.exe
  C:\Windows\system32\sc.exe config srservice start= disabled
  2⤵
  - Launches sc.exe
  PID:476
- C:\Windows\SysWOW64\regedit.exe
  regedit.exe /s C:\Windows\regedt32.sys
  2⤵
  - Modifies visibility of file extensions in Explorer
  - Blocks application from running via registry modification
  - Sets file execution options in registry
  - Runs regedit.exe
  PID:1452
- C:\Windows\SysWOW64\reg.exe
  C:\Windows\system32\reg.exe delete "hklm\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\{4D36E967-E325-11CE-BFC1-08002BE10318}" /f
  2⤵
  PID:2896
- C:\Windows\SysWOW64\reg.exe
  C:\Windows\system32\reg.exe delete "hklm\SYSTEM\ControlSet001\Control\SafeBoot\Network\{4D36E967-E325-11CE-BFC1-08002BE10318}" /f
  2⤵
  PID:2932
- C:\Windows\system\KavUpda.exe
  C:\Windows\system\KavUpda.exe
  2⤵
  - Executes dropped EXE
  - Drops autorun.inf file
  - Drops file in System32 directory
  - Drops file in Windows directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:368
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c C:\Windows\system32\Option.bat
    3⤵
    PID:796
- - C:\Windows\SysWOW64\net.exe
    net.exe start schedule /y
    3⤵
    PID:1520
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 start schedule /y
      4⤵
      PID:1208
- - C:\Windows\SysWOW64\At.exe
    At.exe 11:40:26 PM C:\Windows\Help\HelpCat.exe
    3⤵
    PID:1276
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c at 11:39:28 PM C:\Windows\Sysinf.bat
    3⤵
    PID:2360
  - - C:\Windows\SysWOW64\at.exe
      at 11:39:28 PM C:\Windows\Sysinf.bat
      4⤵
      PID:1912
- - C:\Windows\SysWOW64\net.exe
    net.exe stop wscsvc /y
    3⤵
    PID:2152
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 stop wscsvc /y
      4⤵
      PID:1944
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c at 11:42:28 PM C:\Windows\Sysinf.bat
    3⤵
    PID:2420
  - - C:\Windows\SysWOW64\at.exe
      at 11:42:28 PM C:\Windows\Sysinf.bat
      4⤵
      PID:2480
- - C:\Windows\SysWOW64\net.exe
    net.exe stop sharedaccess /y
    3⤵
    PID:2084
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 stop sharedaccess /y
      4⤵
      PID:1924
- - C:\Windows\SysWOW64\net.exe
    net.exe stop srservice /y
    3⤵
    PID:1940
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 stop srservice /y
      4⤵
      PID:2404
- - C:\Windows\SysWOW64\net.exe
    net.exe stop wuauserv /y
    3⤵
    PID:1648
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 stop wuauserv /y
      4⤵
      PID:1688
- - C:\Windows\SysWOW64\net.exe
    net.exe stop 360timeprot /y
    3⤵
    PID:488
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 stop 360timeprot /y
      4⤵
      PID:2116
- - C:\Windows\SysWOW64\sc.exe
    C:\Windows\system32\sc.exe config srservice start= disabled
    3⤵
    - Launches sc.exe
    PID:904
- - C:\Windows\SysWOW64\sc.exe
    C:\Windows\system32\sc.exe config SharedAccess start= disabled
    3⤵
    - Launches sc.exe
    PID:392
- - C:\Windows\SysWOW64\sc.exe
    C:\Windows\system32\sc.exe config wscsvc start= disabled
    3⤵
    - Launches sc.exe
    PID:2292
- - C:\Windows\SysWOW64\sc.exe
    C:\Windows\system32\sc.exe config srservice start= disabled
    3⤵
    - Launches sc.exe
    PID:2296
- - C:\Windows\SysWOW64\reg.exe
    C:\Windows\system32\reg.exe delete "hklm\SYSTEM\ControlSet001\Control\SafeBoot\Network\{4D36E967-E325-11CE-BFC1-08002BE10318}" /f
    3⤵
    PID:1072
- - C:\Windows\SysWOW64\reg.exe
    C:\Windows\system32\reg.exe delete "hklm\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\{4D36E967-E325-11CE-BFC1-08002BE10318}" /f
    3⤵
    PID:888
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c attrib -s -h -r F:\Autorun.inf\*.* /s /d
    3⤵
    PID:2500
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -s -h -r F:\Autorun.inf\*.* /s /d
      4⤵
      Views/modifies file attributes
      PID:2724
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c rmdir F:\Autorun.inf /s /q
    3⤵
    PID:1908
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c attrib -s -h -r C:\Autorun.inf\*.* /s /d
    3⤵
    PID:2584
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -s -h -r C:\Autorun.inf\*.* /s /d
      4⤵
      Views/modifies file attributes
      PID:2572
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c rmdir C:\Autorun.inf /s /q
    3⤵
    PID:2760
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c attrib -s -h -r F:\Autorun.inf\*.* /s /d
    3⤵
    PID:588
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -s -h -r F:\Autorun.inf\*.* /s /d
      4⤵
      Views/modifies file attributes
      PID:2936
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c rmdir F:\Autorun.inf /s /q
    3⤵
    PID:1372
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c attrib -s -h -r C:\Autorun.inf\*.* /s /d
    3⤵
    PID:812
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -s -h -r C:\Autorun.inf\*.* /s /d
      4⤵
      Views/modifies file attributes
      PID:2892
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c rmdir C:\Autorun.inf /s /q
    3⤵
    PID:1056
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c attrib -s -h -r F:\Autorun.inf\*.* /s /d
    3⤵
    PID:1684
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -s -h -r F:\Autorun.inf\*.* /s /d
      4⤵
      Views/modifies file attributes
      PID:1808
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c rmdir F:\Autorun.inf /s /q
    3⤵
    PID:2036
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c attrib -s -h -r C:\Autorun.inf\*.* /s /d
    3⤵
    PID:1636
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -s -h -r C:\Autorun.inf\*.* /s /d
      4⤵
      Views/modifies file attributes
      PID:2344
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c rmdir C:\Autorun.inf /s /q
    3⤵
    PID:984
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c attrib -s -h -r F:\Autorun.inf\*.* /s /d
    3⤵
    PID:992
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -s -h -r F:\Autorun.inf\*.* /s /d
      4⤵
      Views/modifies file attributes
      PID:544
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c rmdir F:\Autorun.inf /s /q
    3⤵
    PID:2388
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c attrib -s -h -r C:\Autorun.inf\*.* /s /d
    3⤵
    PID:2484
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -s -h -r C:\Autorun.inf\*.* /s /d
      4⤵
      Views/modifies file attributes
      PID:1500
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c rmdir C:\Autorun.inf /s /q
    3⤵
    PID:2520
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c attrib -s -h -r F:\Autorun.inf\*.* /s /d
    3⤵
    PID:2528
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -s -h -r F:\Autorun.inf\*.* /s /d
      4⤵
      Views/modifies file attributes
      PID:2836
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c rmdir F:\Autorun.inf /s /q
    3⤵
    PID:2064
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c attrib -s -h -r C:\Autorun.inf\*.* /s /d
    3⤵
    PID:2824
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -s -h -r C:\Autorun.inf\*.* /s /d
      4⤵
      Views/modifies file attributes
      PID:3056
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c rmdir C:\Autorun.inf /s /q
    3⤵
    PID:2464
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c attrib -s -h -r F:\Autorun.inf\*.* /s /d
    3⤵
    PID:2740
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -s -h -r F:\Autorun.inf\*.* /s /d
      4⤵
      Views/modifies file attributes
      PID:2652
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c rmdir F:\Autorun.inf /s /q
    3⤵
    PID:2184
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c attrib -s -h -r C:\Autorun.inf\*.* /s /d
    3⤵
    PID:1540
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -s -h -r C:\Autorun.inf\*.* /s /d
      4⤵
      Views/modifies file attributes
      PID:1188
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c rmdir C:\Autorun.inf /s /q
    3⤵
    PID:2228
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c attrib -s -h -r F:\Autorun.inf\*.* /s /d
    3⤵
    PID:2480
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -s -h -r F:\Autorun.inf\*.* /s /d
      4⤵
      Views/modifies file attributes
      PID:568
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c rmdir F:\Autorun.inf /s /q
    3⤵
    PID:2172
- C:\Windows\SysWOW64\net.exe
  net.exe stop wscsvc /y
  2⤵
  PID:1808
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop wscsvc /y
    3⤵
    PID:1816
- C:\Windows\SysWOW64\net.exe
  net.exe stop sharedaccess /y
  2⤵
  PID:2672
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop sharedaccess /y
    3⤵
    PID:944
- C:\Windows\SysWOW64\net.exe
  net.exe stop srservice /y
  2⤵
  PID:328
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop srservice /y
    3⤵
    PID:280
- C:\Windows\SysWOW64\net.exe
  net.exe stop wuauserv /y
  2⤵
  PID:1192
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop wuauserv /y
    3⤵
    PID:1644
- C:\Windows\SysWOW64\net.exe
  net.exe stop 360timeprot /y
  2⤵
  PID:2008
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop 360timeprot /y
    3⤵
    PID:2464

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Replication Through Removable Media

T1091

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Hide Artifacts

T1564

Hidden Files and Directories

T1564.001

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Replication Through Removable Media

T1091

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\SysWOW64\Option.bat

Filesize
82B

MD5
3f7fbd2eb34892646e93fd5e6e343512

SHA1
265ac1061b54f62350fb7a5f57e566454d013a66

SHA256
e75e8d9bfc7a2876d908305186c3656e9de2a4af7f6927ccc6d8c812645abbc7

SHA512
53d40eb2f05a23464fbf06193868e7cb30cf0df3da53586a75123fb2c37b29cdddda287ce134809d16a559d87fb20aee0e8add22d396fcb7a55f9a753739b140

Download Submit
C:\Windows\Sysinf.bat

Filesize
460B

MD5
7db3d565d6ddbe65a8b0e093910e7dcd

SHA1
d4804e6180c6e74ba79d3343f2f2ccb15e502f12

SHA256
a2778cb87fd88c7508ffd506a8ff8d58d0ffc02156f846956e5e99c6cb3d2f3f

SHA512
0b3d1d0f44feba9dd78903ff77fdeaea834d930990a86641fb2e4ce04da280d33f6bee0ae0b1320e4070cbe20824062e45b52e5cad797c5985d8e31dce1ef82b

Download Submit
C:\Windows\regedt32.sys

Filesize
2KB

MD5
e7d7ec66bd61fac3843c98650b0c68f6

SHA1
a15ae06e1be51038863650746368a71024539bac

SHA256
6475d5ecc14fea090774be55723d2d52b7ec7670527a7dbd61edf28c77944cb8

SHA512
ac9e9893f5a0af03957731445f63279085f164e9a968d706a99d13012e4459314a7ccc32dc48f62379d69e21a0953c13543c9ded38b5ad5fbc346aa442af1ae6

Download Submit
C:\Windows\system\KavUpda.exe

Filesize
497KB

MD5
557f33ae0fcee2be97b86b7e7eecf890

SHA1
2ced59d2e44e1099771c9a4a0a01a9cb6f7ed198

SHA256
bf97b76f50fab5a53364e0e3bed4da079ae5457885215f1aa999991549281fa4

SHA512
2cdd737271106fa78990f7d2753d48d2ae5c4a27afb7aa070ca373905ed5e6110fbab8aa4946410b2e1b57807590953bbafb0dd822f95f1954b45f6eb57da015

Download Submit
F:\Autorun.inf

Filesize
237B

MD5
94bcd02c5afd5918b4446345e7a5ded9

SHA1
79839238e84be225132e1382fae6333dfc4906a1

SHA256
5d9f41e4f886926dae2ed8a57807708110d3c6964ab462be21462bff0088d9a1

SHA512
149f6bd49fc3b62fa5f41666bfb3a58060514eec1b61c6aa1ac4c75417c840b028e701eb5533460eb00e2fee8543379564bc47d7477264771d81b99a0caab500

Download Submit
\Windows\system\KavUpda.exe

Filesize
384KB

MD5
9c3acbee08b7a976031a22f82688fd9b

SHA1
45fcef7047191d961ab11381a7c48b84aa9ef5e9

SHA256
4a4402765a815a99e28a0cf18ae4be4e0e87a541b0a7372d96dd74840e79db21

SHA512
d1e6bfe0a49916eff245c1dfb58a12a2bf1a008e2c1013aa16229099ff661f3ae5f094d49970f1a11f3675dbb197d7c95c19407ead5ae2c20dd96dbe716290cc

Download Submit
memory/2512-0-0x0000000000400000-0x0000000000436000-memory.dmp

Filesize
216KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads