e7439153eb1e89dde45367264124ad0555c95f1cc6b8ea37fbbce275a5659699

Analysis

max time kernel
180s
max time network
209s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
07/01/2024, 19:33

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General

Target
a9051e421afe440ca8441f50266e45d0.exe
Size 852KB
Sample240107-x9hr2adeb7
SHA256 e7439153eb1e89dde45367264124ad0555c95f1cc6b8ea37fbbce275a5659699
MD5 a9051e421afe440ca8441f50266e45d0
SHA1 41a91346fa87220eff563043e7533ff42f64f71a
SHA512 0b115164cfefdb2195f5b78f0543311ad39127afb851b1cbbce1b6249b0e9a47779243c56c1f3162b5a11a0d3775b574daaec39d81b0971b71def7d242304ec5
SSDEEP 12288:UZWtI6Rk8VYeZJys73dOvXDpNjNe8zjrOKVYeZJys73dOvXDpNjNe8zj3:Uuha7eZJ8NI8zjMeZJ8NI8zj3
MD5 SHA1 SHA512 SSDEEP

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-1-5-21-635608581-3370340891-292606865-1000\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-1-5-21-635608581-3370340891-292606865-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\6 = "RavMon.exe"	regedit.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-635608581-3370340891-292606865-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun = "1"	regedit.exe
Key created	\REGISTRY\USER\S-1-5-21-635608581-3370340891-292606865-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-635608581-3370340891-292606865-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\2 = "RfwMain.exe"	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-635608581-3370340891-292606865-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\10 = "rfwcfg.exe"	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-635608581-3370340891-292606865-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\13 = "KAVPFW.EXE"	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-635608581-3370340891-292606865-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\15 = "KAVStart.EXE"	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-635608581-3370340891-292606865-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\4 = "RavMoD.exe"	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-635608581-3370340891-292606865-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\8 = "RavService.exe"	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-635608581-3370340891-292606865-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\9 = "Rav.exe"	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-635608581-3370340891-292606865-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\7 = "RavStub.exe"	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-635608581-3370340891-292606865-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\11 = "KPFW32.EXE"	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-635608581-3370340891-292606865-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\12 = "KPFW32X.EXE"	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-635608581-3370340891-292606865-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\14 = "KAV32.EXE"	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-635608581-3370340891-292606865-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\1 = "avp.exe"	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-635608581-3370340891-292606865-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\3 = "Rfwsrv.exe"	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-635608581-3370340891-292606865-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\5 = "CCenter.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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\RfwMain.exe\Debugger = "D:\\RECYCLER\\????8.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
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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KAVStart.EXE\Debugger = "D:\\RECYCLER\\????8.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\RavMoD.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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\360Safe.exe\Debugger = "D:\\RECYCLER\\????8.exe"	regedit.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\KAVStart.EXE	regedit.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\regedit.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
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\RavMoD.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\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\RfwMain.exe	regedit.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Rfwsrv.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\taskmgr.exe	regedit.exe

Executes dropped EXE 1 IoCs

pid	Process
5048	KavUpda.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 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Option.bat	a9051e421afe440ca8441f50266e45d0.exe
File opened for modification	C:\Windows\SysWOW64\Option.bat	KavUpda.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\7-Zip\7z.exe	a9051e421afe440ca8441f50266e45d0.exe
File opened for modification	C:\Program Files\7-Zip\7zFM.exe	a9051e421afe440ca8441f50266e45d0.exe
File opened for modification	C:\Program Files\7-Zip\7zG.exe	a9051e421afe440ca8441f50266e45d0.exe

Drops file in Windows directory 10 IoCs

description	ioc	Process
File created	C:\Windows\Sysinf.bat	a9051e421afe440ca8441f50266e45d0.exe
File created	C:\Windows\regedt32.sys	a9051e421afe440ca8441f50266e45d0.exe
File opened for modification	C:\Windows\system\KavUpda.exe	KavUpda.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	a9051e421afe440ca8441f50266e45d0.exe
File created	C:\Windows\Help\HelpCat.exe	a9051e421afe440ca8441f50266e45d0.exe
File opened for modification	C:\Windows\Help\HelpCat.exe	a9051e421afe440ca8441f50266e45d0.exe
File created	C:\Windows\system\KavUpda.exe	a9051e421afe440ca8441f50266e45d0.exe
File opened for modification	C:\Windows\Sysinf.bat	KavUpda.exe

Launches sc.exe 8 IoCs

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

pid	Process
2500	sc.exe
2532	sc.exe
2840	sc.exe
4848	sc.exe
3104	sc.exe
4028	sc.exe
2868	sc.exe
5088	sc.exe

Runs net.exe

Runs regedit.exe 1 IoCs

pid	Process
1200	regedit.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: 33	5048	KavUpda.exe
Token: SeIncBasePriorityPrivilege	5048	KavUpda.exe
Token: 33	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: SeIncBasePriorityPrivilege	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: 33	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: SeIncBasePriorityPrivilege	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: 33	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: SeIncBasePriorityPrivilege	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: 33	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: SeIncBasePriorityPrivilege	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: 33	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: SeIncBasePriorityPrivilege	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: 33	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: SeIncBasePriorityPrivilege	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: 33	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: SeIncBasePriorityPrivilege	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: 33	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: SeIncBasePriorityPrivilege	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: 33	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: SeIncBasePriorityPrivilege	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: 33	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: SeIncBasePriorityPrivilege	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: 33	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: SeIncBasePriorityPrivilege	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: 33	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: SeIncBasePriorityPrivilege	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: 33	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: SeIncBasePriorityPrivilege	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: 33	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: SeIncBasePriorityPrivilege	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: 33	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: SeIncBasePriorityPrivilege	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: 33	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: SeIncBasePriorityPrivilege	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: 33	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: SeIncBasePriorityPrivilege	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: 33	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: SeIncBasePriorityPrivilege	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: 33	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: SeIncBasePriorityPrivilege	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: 33	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: SeIncBasePriorityPrivilege	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: 33	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: SeIncBasePriorityPrivilege	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: 33	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: SeIncBasePriorityPrivilege	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: 33	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: SeIncBasePriorityPrivilege	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: 33	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: SeIncBasePriorityPrivilege	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: 33	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: SeIncBasePriorityPrivilege	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: 33	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: SeIncBasePriorityPrivilege	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: 33	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: SeIncBasePriorityPrivilege	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: 33	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: SeIncBasePriorityPrivilege	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: 33	5048	KavUpda.exe
Token: SeIncBasePriorityPrivilege	5048	KavUpda.exe
Token: 33	5048	KavUpda.exe
Token: SeIncBasePriorityPrivilege	5048	KavUpda.exe
Token: 33	3180	a9051e421afe440ca8441f50266e45d0.exe
Token: SeIncBasePriorityPrivilege	3180	a9051e421afe440ca8441f50266e45d0.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3180	a9051e421afe440ca8441f50266e45d0.exe
5048	KavUpda.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 3180 wrote to memory of 2092	3180	a9051e421afe440ca8441f50266e45d0.exe	91
PID 3180 wrote to memory of 2092	3180	a9051e421afe440ca8441f50266e45d0.exe	91
PID 3180 wrote to memory of 2092	3180	a9051e421afe440ca8441f50266e45d0.exe	91
PID 3180 wrote to memory of 3344	3180	a9051e421afe440ca8441f50266e45d0.exe	94
PID 3180 wrote to memory of 3344	3180	a9051e421afe440ca8441f50266e45d0.exe	94
PID 3180 wrote to memory of 3344	3180	a9051e421afe440ca8441f50266e45d0.exe	94
PID 3180 wrote to memory of 4776	3180	a9051e421afe440ca8441f50266e45d0.exe	97
PID 3180 wrote to memory of 4776	3180	a9051e421afe440ca8441f50266e45d0.exe	97
PID 3180 wrote to memory of 4776	3180	a9051e421afe440ca8441f50266e45d0.exe	97
PID 3180 wrote to memory of 3728	3180	a9051e421afe440ca8441f50266e45d0.exe	98
PID 3180 wrote to memory of 3728	3180	a9051e421afe440ca8441f50266e45d0.exe	98
PID 3180 wrote to memory of 3728	3180	a9051e421afe440ca8441f50266e45d0.exe	98
PID 3180 wrote to memory of 800	3180	a9051e421afe440ca8441f50266e45d0.exe	99
PID 3180 wrote to memory of 800	3180	a9051e421afe440ca8441f50266e45d0.exe	99
PID 3180 wrote to memory of 800	3180	a9051e421afe440ca8441f50266e45d0.exe	99
PID 3180 wrote to memory of 2304	3180	a9051e421afe440ca8441f50266e45d0.exe	100
PID 3180 wrote to memory of 2304	3180	a9051e421afe440ca8441f50266e45d0.exe	100
PID 3180 wrote to memory of 2304	3180	a9051e421afe440ca8441f50266e45d0.exe	100
PID 3180 wrote to memory of 4564	3180	a9051e421afe440ca8441f50266e45d0.exe	101
PID 3180 wrote to memory of 4564	3180	a9051e421afe440ca8441f50266e45d0.exe	101
PID 3180 wrote to memory of 4564	3180	a9051e421afe440ca8441f50266e45d0.exe	101
PID 3180 wrote to memory of 4452	3180	a9051e421afe440ca8441f50266e45d0.exe	102
PID 3180 wrote to memory of 4452	3180	a9051e421afe440ca8441f50266e45d0.exe	102
PID 3180 wrote to memory of 4452	3180	a9051e421afe440ca8441f50266e45d0.exe	102
PID 3180 wrote to memory of 3364	3180	a9051e421afe440ca8441f50266e45d0.exe	103
PID 3180 wrote to memory of 3364	3180	a9051e421afe440ca8441f50266e45d0.exe	103
PID 3180 wrote to memory of 3364	3180	a9051e421afe440ca8441f50266e45d0.exe	103
PID 3180 wrote to memory of 4392	3180	a9051e421afe440ca8441f50266e45d0.exe	104
PID 3180 wrote to memory of 4392	3180	a9051e421afe440ca8441f50266e45d0.exe	104
PID 3180 wrote to memory of 4392	3180	a9051e421afe440ca8441f50266e45d0.exe	104
PID 3180 wrote to memory of 2500	3180	a9051e421afe440ca8441f50266e45d0.exe	105
PID 3180 wrote to memory of 2500	3180	a9051e421afe440ca8441f50266e45d0.exe	105
PID 3180 wrote to memory of 2500	3180	a9051e421afe440ca8441f50266e45d0.exe	105
PID 3180 wrote to memory of 2532	3180	a9051e421afe440ca8441f50266e45d0.exe	106
PID 3180 wrote to memory of 2532	3180	a9051e421afe440ca8441f50266e45d0.exe	106
PID 3180 wrote to memory of 2532	3180	a9051e421afe440ca8441f50266e45d0.exe	106
PID 3180 wrote to memory of 2840	3180	a9051e421afe440ca8441f50266e45d0.exe	107
PID 3180 wrote to memory of 2840	3180	a9051e421afe440ca8441f50266e45d0.exe	107
PID 3180 wrote to memory of 2840	3180	a9051e421afe440ca8441f50266e45d0.exe	107
PID 3180 wrote to memory of 4848	3180	a9051e421afe440ca8441f50266e45d0.exe	108
PID 3180 wrote to memory of 4848	3180	a9051e421afe440ca8441f50266e45d0.exe	108
PID 3180 wrote to memory of 4848	3180	a9051e421afe440ca8441f50266e45d0.exe	108
PID 3180 wrote to memory of 1200	3180	a9051e421afe440ca8441f50266e45d0.exe	109
PID 3180 wrote to memory of 1200	3180	a9051e421afe440ca8441f50266e45d0.exe	109
PID 3180 wrote to memory of 1200	3180	a9051e421afe440ca8441f50266e45d0.exe	109
PID 4392 wrote to memory of 4100	4392	net.exe	130
PID 4392 wrote to memory of 4100	4392	net.exe	130
PID 4392 wrote to memory of 4100	4392	net.exe	130
PID 3728 wrote to memory of 2704	3728	cmd.exe	124
PID 3728 wrote to memory of 2704	3728	cmd.exe	124
PID 3728 wrote to memory of 2704	3728	cmd.exe	124
PID 800 wrote to memory of 2424	800	cmd.exe	123
PID 800 wrote to memory of 2424	800	cmd.exe	123
PID 800 wrote to memory of 2424	800	cmd.exe	123
PID 4452 wrote to memory of 4088	4452	net.exe	129
PID 4452 wrote to memory of 4088	4452	net.exe	129
PID 4452 wrote to memory of 4088	4452	net.exe	129
PID 3364 wrote to memory of 712	3364	net.exe	128
PID 3364 wrote to memory of 712	3364	net.exe	128
PID 3364 wrote to memory of 712	3364	net.exe	128
PID 2304 wrote to memory of 4576	2304	net.exe	127
PID 2304 wrote to memory of 4576	2304	net.exe	127
PID 2304 wrote to memory of 4576	2304	net.exe	127
PID 3344 wrote to memory of 2056	3344	net.exe	125

Views/modifies file attributes 1 TTPs 6 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
3488	attrib.exe
220	attrib.exe
4736	attrib.exe
3924	attrib.exe
5116	attrib.exe
3264	attrib.exe

C:\Users\Admin\AppData\Local\Temp\a9051e421afe440ca8441f50266e45d0.exe
"C:\Users\Admin\AppData\Local\Temp\a9051e421afe440ca8441f50266e45d0.exe"
1⤵
- 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:3180
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Windows\system32\Option.bat
  2⤵
  PID:2092
- C:\Windows\SysWOW64\net.exe
  net.exe start schedule /y
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3344
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 start schedule /y
    3⤵
    PID:2056
- C:\Windows\SysWOW64\At.exe
  At.exe 7:38:28 PM C:\Windows\Help\HelpCat.exe
  2⤵
  PID:4776
- C:\Windows\SysWOW64\cmd.exe
  cmd /c at 7:37:41 PM C:\Windows\Sysinf.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3728
- - C:\Windows\SysWOW64\at.exe
    at 7:37:41 PM C:\Windows\Sysinf.bat
    3⤵
    PID:2704
- C:\Windows\SysWOW64\cmd.exe
  cmd /c at 7:40:41 PM C:\Windows\Sysinf.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:800
- - C:\Windows\SysWOW64\at.exe
    at 7:40:41 PM C:\Windows\Sysinf.bat
    3⤵
    PID:2424
- C:\Windows\SysWOW64\net.exe
  net.exe stop wscsvc /y
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2304
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop wscsvc /y
    3⤵
    PID:4576
- C:\Windows\SysWOW64\net.exe
  net.exe stop sharedaccess /y
  2⤵
  PID:4564
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop sharedaccess /y
    3⤵
    PID:1888
- C:\Windows\SysWOW64\net.exe
  net.exe stop wuauserv /y
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4452
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop wuauserv /y
    3⤵
    PID:4088
- C:\Windows\SysWOW64\net.exe
  net.exe stop srservice /y
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3364
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop srservice /y
    3⤵
    PID:712
- C:\Windows\SysWOW64\net.exe
  net.exe stop 360timeprot /y
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4392
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop 360timeprot /y
    3⤵
    PID:4100
- C:\Windows\SysWOW64\sc.exe
  C:\Windows\system32\sc.exe config srservice start= disabled
  2⤵
  - Launches sc.exe
  PID:2500
- C:\Windows\SysWOW64\sc.exe
  C:\Windows\system32\sc.exe config SharedAccess start= disabled
  2⤵
  - Launches sc.exe
  PID:2532
- C:\Windows\SysWOW64\sc.exe
  C:\Windows\system32\sc.exe config wscsvc start= disabled
  2⤵
  - Launches sc.exe
  PID:2840
- C:\Windows\SysWOW64\sc.exe
  C:\Windows\system32\sc.exe config srservice start= disabled
  2⤵
  - Launches sc.exe
  PID:4848
- 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:1200
- 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:4360
- 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:2208
- 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:5048
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c C:\Windows\system32\Option.bat
    3⤵
    PID:3600
- - C:\Windows\SysWOW64\net.exe
    net.exe start schedule /y
    3⤵
    PID:552
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 start schedule /y
      4⤵
      PID:4572
- - C:\Windows\SysWOW64\At.exe
    At.exe 7:39:03 PM C:\Windows\Help\HelpCat.exe
    3⤵
    PID:2536
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c at 7:38:05 PM C:\Windows\Sysinf.bat
    3⤵
    PID:996
  - - C:\Windows\SysWOW64\at.exe
      at 7:38:05 PM C:\Windows\Sysinf.bat
      4⤵
      PID:4292
- - C:\Windows\SysWOW64\net.exe
    net.exe stop wscsvc /y
    3⤵
    PID:3556
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 stop wscsvc /y
      4⤵
      PID:3344
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c at 7:41:05 PM C:\Windows\Sysinf.bat
    3⤵
    PID:4368
  - - C:\Windows\SysWOW64\at.exe
      at 7:41:05 PM C:\Windows\Sysinf.bat
      4⤵
      PID:4052
- - C:\Windows\SysWOW64\net.exe
    net.exe stop sharedaccess /y
    3⤵
    PID:1200
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 stop sharedaccess /y
      4⤵
      PID:4396
- - C:\Windows\SysWOW64\net.exe
    net.exe stop wuauserv /y
    3⤵
    PID:3004
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 stop wuauserv /y
      4⤵
      PID:3680
- - C:\Windows\SysWOW64\net.exe
    net.exe stop srservice /y
    3⤵
    PID:764
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 stop srservice /y
      4⤵
      PID:4776
- - C:\Windows\SysWOW64\sc.exe
    C:\Windows\system32\sc.exe config srservice start= disabled
    3⤵
    - Launches sc.exe
    PID:3104
- - C:\Windows\SysWOW64\net.exe
    net.exe stop 360timeprot /y
    3⤵
    PID:2840
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 stop 360timeprot /y
      4⤵
      PID:2176
- - C:\Windows\SysWOW64\sc.exe
    C:\Windows\system32\sc.exe config SharedAccess start= disabled
    3⤵
    - Launches sc.exe
    PID:4028
- - C:\Windows\SysWOW64\sc.exe
    C:\Windows\system32\sc.exe config wscsvc start= disabled
    3⤵
    - Launches sc.exe
    PID:2868
- - C:\Windows\SysWOW64\sc.exe
    C:\Windows\system32\sc.exe config srservice start= disabled
    3⤵
    - Launches sc.exe
    PID:5088
- - 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:548
- - 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:4048
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c rmdir F:\Autorun.inf /s /q
    3⤵
    PID:1240
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c attrib -s -h -r F:\Autorun.inf\*.* /s /d
    3⤵
    PID:964
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -s -h -r F:\Autorun.inf\*.* /s /d
      4⤵
      Views/modifies file attributes
      PID:5116
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c attrib -s -h -r C:\Autorun.inf\*.* /s /d
    3⤵
    PID:1816
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -s -h -r C:\Autorun.inf\*.* /s /d
      4⤵
      Views/modifies file attributes
      PID:3264
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c rmdir C:\Autorun.inf /s /q
    3⤵
    PID:1328
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c rmdir F:\Autorun.inf /s /q
    3⤵
    PID:4872
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c attrib -s -h -r F:\Autorun.inf\*.* /s /d
    3⤵
    PID:5044
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -s -h -r F:\Autorun.inf\*.* /s /d
      4⤵
      Views/modifies file attributes
      PID:3488
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c attrib -s -h -r C:\Autorun.inf\*.* /s /d
    3⤵
    PID:4960
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -s -h -r C:\Autorun.inf\*.* /s /d
      4⤵
      Views/modifies file attributes
      PID:220
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c rmdir C:\Autorun.inf /s /q
    3⤵
    PID:3092
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c attrib -s -h -r F:\Autorun.inf\*.* /s /d
    3⤵
    PID:1368
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -s -h -r F:\Autorun.inf\*.* /s /d
      4⤵
      Views/modifies file attributes
      PID:4736
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c rmdir F:\Autorun.inf /s /q
    3⤵
    PID:1296
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c attrib -s -h -r C:\Autorun.inf\*.* /s /d
    3⤵
    PID:376
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -s -h -r C:\Autorun.inf\*.* /s /d
      4⤵
      Views/modifies file attributes
      PID:3924
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c rmdir C:\Autorun.inf /s /q
    3⤵
    PID:2468
- C:\Windows\SysWOW64\net.exe
  net.exe stop wscsvc /y
  2⤵
  PID:3728
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop wscsvc /y
    3⤵
    PID:3440
- C:\Windows\SysWOW64\net.exe
  net.exe stop sharedaccess /y
  2⤵
  PID:4344
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop sharedaccess /y
    3⤵
    PID:412
- C:\Windows\SysWOW64\net.exe
  net.exe stop wuauserv /y
  2⤵
  PID:4092
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop wuauserv /y
    3⤵
    PID:4232
- C:\Windows\SysWOW64\net.exe
  net.exe stop srservice /y
  2⤵
  PID:456
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop srservice /y
    3⤵
    PID:2104
- C:\Windows\SysWOW64\net.exe
  net.exe stop 360timeprot /y
  2⤵
  PID:4084
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop 360timeprot /y
    3⤵
    PID:3572

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

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Downloads

Option.bat

Path C:\Windows\SysWOW64\Option.bat
Size 82B
SHA256 e75e8d9bfc7a2876d908305186c3656e9de2a4af7f6927ccc6d8c812645abbc7
MD5 3f7fbd2eb34892646e93fd5e6e343512
SHA1 265ac1061b54f62350fb7a5f57e566454d013a66
SHA512 53d40eb2f05a23464fbf06193868e7cb30cf0df3da53586a75123fb2c37b29cdddda287ce134809d16a559d87fb20aee0e8add22d396fcb7a55f9a753739b140
MD5 SHA1 SHA512

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Sysinf.bat

Path C:\Windows\Sysinf.bat
Size 460B
SHA256 a2778cb87fd88c7508ffd506a8ff8d58d0ffc02156f846956e5e99c6cb3d2f3f
MD5 7db3d565d6ddbe65a8b0e093910e7dcd
SHA1 d4804e6180c6e74ba79d3343f2f2ccb15e502f12
SHA512 0b3d1d0f44feba9dd78903ff77fdeaea834d930990a86641fb2e4ce04da280d33f6bee0ae0b1320e4070cbe20824062e45b52e5cad797c5985d8e31dce1ef82b
MD5 SHA1 SHA512

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KavUpda.exe

Path C:\Windows\System\KavUpda.exe
Size 852KB
SHA256 e7439153eb1e89dde45367264124ad0555c95f1cc6b8ea37fbbce275a5659699
MD5 a9051e421afe440ca8441f50266e45d0
SHA1 41a91346fa87220eff563043e7533ff42f64f71a
SHA512 0b115164cfefdb2195f5b78f0543311ad39127afb851b1cbbce1b6249b0e9a47779243c56c1f3162b5a11a0d3775b574daaec39d81b0971b71def7d242304ec5
SSDEEP 12288:UZWtI6Rk8VYeZJys73dOvXDpNjNe8zjrOKVYeZJys73dOvXDpNjNe8zj3:Uuha7eZJ8NI8zjMeZJ8NI8zj3
MD5 SHA1 SHA512 SSDEEP

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regedt32.sys

Path C:\Windows\regedt32.sys
Size 2KB
SHA256 6475d5ecc14fea090774be55723d2d52b7ec7670527a7dbd61edf28c77944cb8
MD5 e7d7ec66bd61fac3843c98650b0c68f6
SHA1 a15ae06e1be51038863650746368a71024539bac
SHA512 ac9e9893f5a0af03957731445f63279085f164e9a968d706a99d13012e4459314a7ccc32dc48f62379d69e21a0953c13543c9ded38b5ad5fbc346aa442af1ae6
MD5 SHA1 SHA512

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Autorun.inf

Path F:\Autorun.inf
Size 237B
SHA256 5d9f41e4f886926dae2ed8a57807708110d3c6964ab462be21462bff0088d9a1
MD5 94bcd02c5afd5918b4446345e7a5ded9
SHA1 79839238e84be225132e1382fae6333dfc4906a1
SHA512 149f6bd49fc3b62fa5f41666bfb3a58060514eec1b61c6aa1ac4c75417c840b028e701eb5533460eb00e2fee8543379564bc47d7477264771d81b99a0caab500
MD5 SHA1 SHA512

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memory/3180-0-0x0000000000400000-0x0000000000436000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads