90f63ffa83f4f91c969f05495bc4c36ca404cd6af71130e0895b5a5fda5e1e3d

Analysis

max time kernel
170s
max time network
187s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
04/01/2024, 01:51

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General

Target

3f97e728df4377a78f25014eb4fcac3e.exe
Size

1.0MB
MD5

3f97e728df4377a78f25014eb4fcac3e
SHA1

f3494fc08c90a83b1c9eaf27df1cd14097ea4b2c
SHA256

90f63ffa83f4f91c969f05495bc4c36ca404cd6af71130e0895b5a5fda5e1e3d
SHA512

28da18924a040d83549a9f35f703d443e8e637c8c82cdfa33eaa10226ece393653e27e9454f7c9afc9a205506934c4038fd1724fff564b189d8bac920ef4a02b
SSDEEP

12288:UZWtI6RkuerQZb+md4w1UAMMkerQZb+md4w1UM:UuhauerQZb+md4wmAMMkerQZb+md4wmM

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-1-5-21-3073191680-435865314-2862784915-1000\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-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\3 = "Rfwsrv.exe"	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\4 = "RavMoD.exe"	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\5 = "CCenter.exe"	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\9 = "Rav.exe"	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\13 = "KAVPFW.EXE"	regedit.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun = "1"	regedit.exe
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\11 = "KPFW32.EXE"	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\15 = "KAVStart.EXE"	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\1 = "avp.exe"	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\2 = "RfwMain.exe"	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\7 = "RavStub.exe"	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\6 = "RavMon.exe"	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\8 = "RavService.exe"	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\10 = "rfwcfg.exe"	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\12 = "KPFW32X.EXE"	regedit.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\DisallowRun\14 = "KAV32.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\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
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\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\360tray.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\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
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\regedit.exe\Debugger = "D:\\RECYCLER\\????8.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\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
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\RfwMain.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

Executes dropped EXE 1 IoCs

pid	Process
3432	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	3f97e728df4377a78f25014eb4fcac3e.exe
File opened for modification	C:\Windows\SysWOW64\Option.bat	KavUpda.exe

Drops file in Program Files directory 6 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\7-Zip\7z.exe	3f97e728df4377a78f25014eb4fcac3e.exe
File opened for modification	C:\Program Files\7-Zip\7zFM.exe	3f97e728df4377a78f25014eb4fcac3e.exe
File opened for modification	C:\Program Files\7-Zip\7zG.exe	3f97e728df4377a78f25014eb4fcac3e.exe
File opened for modification	C:\Program Files\7-Zip\Uninstall.exe	3f97e728df4377a78f25014eb4fcac3e.exe
File opened for modification	C:\Program Files\dotnet\dotnet.exe	3f97e728df4377a78f25014eb4fcac3e.exe
File opened for modification	C:\Program Files\dotnet\shared\Microsoft.NETCore.App\6.0.25\createdump.exe	3f97e728df4377a78f25014eb4fcac3e.exe

Drops file in Windows directory 10 IoCs

description	ioc	Process
File created	C:\Windows\Sysinf.bat	3f97e728df4377a78f25014eb4fcac3e.exe
File opened for modification	C:\Windows\Sysinf.bat	KavUpda.exe
File created	C:\Windows\regedt32.sys	KavUpda.exe
File created	C:\Windows\system\KavUpda.exe	3f97e728df4377a78f25014eb4fcac3e.exe
File opened for modification	C:\Windows\Help\HelpCat.exe	3f97e728df4377a78f25014eb4fcac3e.exe
File created	C:\Windows\regedt32.sys	3f97e728df4377a78f25014eb4fcac3e.exe
File opened for modification	C:\Windows\system\KavUpda.exe	KavUpda.exe
File opened for modification	C:\Windows\regedt32.sys	KavUpda.exe
File opened for modification	C:\Windows\system\KavUpda.exe	3f97e728df4377a78f25014eb4fcac3e.exe
File created	C:\Windows\Help\HelpCat.exe	3f97e728df4377a78f25014eb4fcac3e.exe

Launches sc.exe 8 IoCs

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

pid	Process
3100	sc.exe
2504	sc.exe
3884	sc.exe
1072	sc.exe
4452	sc.exe
1832	sc.exe
2544	sc.exe
3616	sc.exe

Runs net.exe

Runs regedit.exe 1 IoCs

pid	Process
3496	regedit.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: 33	3432	KavUpda.exe
Token: SeIncBasePriorityPrivilege	3432	KavUpda.exe
Token: 33	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: SeIncBasePriorityPrivilege	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: 33	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: SeIncBasePriorityPrivilege	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: 33	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: SeIncBasePriorityPrivilege	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: 33	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: SeIncBasePriorityPrivilege	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: 33	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: SeIncBasePriorityPrivilege	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: 33	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: SeIncBasePriorityPrivilege	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: 33	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: SeIncBasePriorityPrivilege	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: 33	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: SeIncBasePriorityPrivilege	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: 33	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: SeIncBasePriorityPrivilege	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: 33	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: SeIncBasePriorityPrivilege	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: 33	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: SeIncBasePriorityPrivilege	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: 33	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: SeIncBasePriorityPrivilege	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: 33	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: SeIncBasePriorityPrivilege	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: 33	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: SeIncBasePriorityPrivilege	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: 33	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: SeIncBasePriorityPrivilege	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: 33	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: SeIncBasePriorityPrivilege	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: 33	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: SeIncBasePriorityPrivilege	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: 33	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: SeIncBasePriorityPrivilege	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: 33	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: SeIncBasePriorityPrivilege	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: 33	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: SeIncBasePriorityPrivilege	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: 33	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: SeIncBasePriorityPrivilege	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: 33	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: SeIncBasePriorityPrivilege	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: 33	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: SeIncBasePriorityPrivilege	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: 33	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: SeIncBasePriorityPrivilege	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: 33	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: SeIncBasePriorityPrivilege	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: 33	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: SeIncBasePriorityPrivilege	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: 33	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: SeIncBasePriorityPrivilege	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: 33	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: SeIncBasePriorityPrivilege	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: 33	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: SeIncBasePriorityPrivilege	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: 33	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: SeIncBasePriorityPrivilege	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: 33	2244	3f97e728df4377a78f25014eb4fcac3e.exe
Token: SeIncBasePriorityPrivilege	2244	3f97e728df4377a78f25014eb4fcac3e.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2244	3f97e728df4377a78f25014eb4fcac3e.exe
3432	KavUpda.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2244 wrote to memory of 1616	2244	3f97e728df4377a78f25014eb4fcac3e.exe	96
PID 2244 wrote to memory of 1616	2244	3f97e728df4377a78f25014eb4fcac3e.exe	96
PID 2244 wrote to memory of 1616	2244	3f97e728df4377a78f25014eb4fcac3e.exe	96
PID 2244 wrote to memory of 2012	2244	3f97e728df4377a78f25014eb4fcac3e.exe	98
PID 2244 wrote to memory of 2012	2244	3f97e728df4377a78f25014eb4fcac3e.exe	98
PID 2244 wrote to memory of 2012	2244	3f97e728df4377a78f25014eb4fcac3e.exe	98
PID 2012 wrote to memory of 1528	2012	net.exe	100
PID 2012 wrote to memory of 1528	2012	net.exe	100
PID 2012 wrote to memory of 1528	2012	net.exe	100
PID 2244 wrote to memory of 1136	2244	3f97e728df4377a78f25014eb4fcac3e.exe	101
PID 2244 wrote to memory of 1136	2244	3f97e728df4377a78f25014eb4fcac3e.exe	101
PID 2244 wrote to memory of 1136	2244	3f97e728df4377a78f25014eb4fcac3e.exe	101
PID 2244 wrote to memory of 3708	2244	3f97e728df4377a78f25014eb4fcac3e.exe	103
PID 2244 wrote to memory of 3708	2244	3f97e728df4377a78f25014eb4fcac3e.exe	103
PID 2244 wrote to memory of 3708	2244	3f97e728df4377a78f25014eb4fcac3e.exe	103
PID 2244 wrote to memory of 2016	2244	3f97e728df4377a78f25014eb4fcac3e.exe	104
PID 2244 wrote to memory of 2016	2244	3f97e728df4377a78f25014eb4fcac3e.exe	104
PID 2244 wrote to memory of 2016	2244	3f97e728df4377a78f25014eb4fcac3e.exe	104
PID 2244 wrote to memory of 3292	2244	3f97e728df4377a78f25014eb4fcac3e.exe	107
PID 2244 wrote to memory of 3292	2244	3f97e728df4377a78f25014eb4fcac3e.exe	107
PID 2244 wrote to memory of 3292	2244	3f97e728df4377a78f25014eb4fcac3e.exe	107
PID 2244 wrote to memory of 1184	2244	3f97e728df4377a78f25014eb4fcac3e.exe	108
PID 2244 wrote to memory of 1184	2244	3f97e728df4377a78f25014eb4fcac3e.exe	108
PID 2244 wrote to memory of 1184	2244	3f97e728df4377a78f25014eb4fcac3e.exe	108
PID 2244 wrote to memory of 4648	2244	3f97e728df4377a78f25014eb4fcac3e.exe	109
PID 2244 wrote to memory of 4648	2244	3f97e728df4377a78f25014eb4fcac3e.exe	109
PID 2244 wrote to memory of 4648	2244	3f97e728df4377a78f25014eb4fcac3e.exe	109
PID 2244 wrote to memory of 4480	2244	3f97e728df4377a78f25014eb4fcac3e.exe	111
PID 2244 wrote to memory of 4480	2244	3f97e728df4377a78f25014eb4fcac3e.exe	111
PID 2244 wrote to memory of 4480	2244	3f97e728df4377a78f25014eb4fcac3e.exe	111
PID 2244 wrote to memory of 3576	2244	3f97e728df4377a78f25014eb4fcac3e.exe	113
PID 2244 wrote to memory of 3576	2244	3f97e728df4377a78f25014eb4fcac3e.exe	113
PID 2244 wrote to memory of 3576	2244	3f97e728df4377a78f25014eb4fcac3e.exe	113
PID 3292 wrote to memory of 2504	3292	net.exe	117
PID 3292 wrote to memory of 2504	3292	net.exe	117
PID 3292 wrote to memory of 2504	3292	net.exe	117
PID 1184 wrote to memory of 1400	1184	net.exe	118
PID 1184 wrote to memory of 1400	1184	net.exe	118
PID 1184 wrote to memory of 1400	1184	net.exe	118
PID 4648 wrote to memory of 4072	4648	net.exe	119
PID 4648 wrote to memory of 4072	4648	net.exe	119
PID 4648 wrote to memory of 4072	4648	net.exe	119
PID 3576 wrote to memory of 4272	3576	net.exe	120
PID 3576 wrote to memory of 4272	3576	net.exe	120
PID 3576 wrote to memory of 4272	3576	net.exe	120
PID 4480 wrote to memory of 1196	4480	net.exe	121
PID 4480 wrote to memory of 1196	4480	net.exe	121
PID 4480 wrote to memory of 1196	4480	net.exe	121
PID 2244 wrote to memory of 4452	2244	3f97e728df4377a78f25014eb4fcac3e.exe	122
PID 2244 wrote to memory of 4452	2244	3f97e728df4377a78f25014eb4fcac3e.exe	122
PID 2244 wrote to memory of 4452	2244	3f97e728df4377a78f25014eb4fcac3e.exe	122
PID 2244 wrote to memory of 1832	2244	3f97e728df4377a78f25014eb4fcac3e.exe	123
PID 2244 wrote to memory of 1832	2244	3f97e728df4377a78f25014eb4fcac3e.exe	123
PID 2244 wrote to memory of 1832	2244	3f97e728df4377a78f25014eb4fcac3e.exe	123
PID 2244 wrote to memory of 2544	2244	3f97e728df4377a78f25014eb4fcac3e.exe	125
PID 2244 wrote to memory of 2544	2244	3f97e728df4377a78f25014eb4fcac3e.exe	125
PID 2244 wrote to memory of 2544	2244	3f97e728df4377a78f25014eb4fcac3e.exe	125
PID 2244 wrote to memory of 3616	2244	3f97e728df4377a78f25014eb4fcac3e.exe	127
PID 2244 wrote to memory of 3616	2244	3f97e728df4377a78f25014eb4fcac3e.exe	127
PID 2244 wrote to memory of 3616	2244	3f97e728df4377a78f25014eb4fcac3e.exe	127
PID 3708 wrote to memory of 3704	3708	cmd.exe	131
PID 3708 wrote to memory of 3704	3708	cmd.exe	131
PID 3708 wrote to memory of 3704	3708	cmd.exe	131
PID 2016 wrote to memory of 3336	2016	cmd.exe	130

Views/modifies file attributes 1 TTPs 8 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
3632	attrib.exe
1380	attrib.exe
4576	attrib.exe
4436	attrib.exe
1632	attrib.exe
1812	attrib.exe
1696	attrib.exe
4004	attrib.exe

C:\Users\Admin\AppData\Local\Temp\3f97e728df4377a78f25014eb4fcac3e.exe
"C:\Users\Admin\AppData\Local\Temp\3f97e728df4377a78f25014eb4fcac3e.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:2244
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Windows\system32\Option.bat
  2⤵
  PID:1616
- C:\Windows\SysWOW64\net.exe
  net.exe start schedule /y
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2012
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 start schedule /y
    3⤵
    PID:1528
- C:\Windows\SysWOW64\At.exe
  At.exe 1:56:13 AM C:\Windows\Help\HelpCat.exe
  2⤵
  PID:1136
- C:\Windows\SysWOW64\cmd.exe
  cmd /c at 1:55:17 AM C:\Windows\Sysinf.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3708
- - C:\Windows\SysWOW64\at.exe
    at 1:55:17 AM C:\Windows\Sysinf.bat
    3⤵
    PID:3704
- C:\Windows\SysWOW64\cmd.exe
  cmd /c at 1:58:17 AM C:\Windows\Sysinf.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2016
- - C:\Windows\SysWOW64\at.exe
    at 1:58:17 AM C:\Windows\Sysinf.bat
    3⤵
    PID:3336
- C:\Windows\SysWOW64\net.exe
  net.exe stop wscsvc /y
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3292
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop wscsvc /y
    3⤵
    PID:2504
- C:\Windows\SysWOW64\net.exe
  net.exe stop sharedaccess /y
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1184
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop sharedaccess /y
    3⤵
    PID:1400
- C:\Windows\SysWOW64\net.exe
  net.exe stop wuauserv /y
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4648
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop wuauserv /y
    3⤵
    PID:4072
- C:\Windows\SysWOW64\net.exe
  net.exe stop srservice /y
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4480
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop srservice /y
    3⤵
    PID:1196
- C:\Windows\SysWOW64\net.exe
  net.exe stop 360timeprot /y
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3576
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop 360timeprot /y
    3⤵
    PID:4272
- C:\Windows\SysWOW64\sc.exe
  C:\Windows\system32\sc.exe config srservice start= disabled
  2⤵
  - Launches sc.exe
  PID:4452
- C:\Windows\SysWOW64\sc.exe
  C:\Windows\system32\sc.exe config SharedAccess start= disabled
  2⤵
  - Launches sc.exe
  PID:1832
- C:\Windows\SysWOW64\sc.exe
  C:\Windows\system32\sc.exe config wscsvc start= disabled
  2⤵
  - Launches sc.exe
  PID:2544
- C:\Windows\SysWOW64\sc.exe
  C:\Windows\system32\sc.exe config srservice start= disabled
  2⤵
  - Launches sc.exe
  PID:3616
- 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:3496
- 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:1368
- 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:1748
- 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:3432
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c C:\Windows\system32\Option.bat
    3⤵
    PID:3280
- - C:\Windows\SysWOW64\net.exe
    net.exe start schedule /y
    3⤵
    PID:4404
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 start schedule /y
      4⤵
      PID:1740
- - C:\Windows\SysWOW64\At.exe
    At.exe 1:56:30 AM C:\Windows\Help\HelpCat.exe
    3⤵
    PID:3944
- - C:\Windows\SysWOW64\net.exe
    net.exe stop wscsvc /y
    3⤵
    PID:4188
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 stop wscsvc /y
      4⤵
      PID:4844
- - C:\Windows\SysWOW64\net.exe
    net.exe stop sharedaccess /y
    3⤵
    PID:1472
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 stop sharedaccess /y
      4⤵
      PID:1048
- - C:\Windows\SysWOW64\net.exe
    net.exe stop wuauserv /y
    3⤵
    PID:4516
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 stop wuauserv /y
      4⤵
      PID:4452
- - C:\Windows\SysWOW64\net.exe
    net.exe stop srservice /y
    3⤵
    PID:4524
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 stop srservice /y
      4⤵
      PID:4920
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c at 1:58:32 AM C:\Windows\Sysinf.bat
    3⤵
    PID:4068
  - - C:\Windows\SysWOW64\at.exe
      at 1:58:32 AM C:\Windows\Sysinf.bat
      4⤵
      PID:3616
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c at 1:55:32 AM C:\Windows\Sysinf.bat
    3⤵
    PID:4892
  - - C:\Windows\SysWOW64\at.exe
      at 1:55:32 AM C:\Windows\Sysinf.bat
      4⤵
      PID:4876
- - C:\Windows\SysWOW64\net.exe
    net.exe stop 360timeprot /y
    3⤵
    PID:3652
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 stop 360timeprot /y
      4⤵
      PID:3784
- - C:\Windows\SysWOW64\sc.exe
    C:\Windows\system32\sc.exe config srservice start= disabled
    3⤵
    - Launches sc.exe
    PID:3100
- - C:\Windows\SysWOW64\sc.exe
    C:\Windows\system32\sc.exe config SharedAccess start= disabled
    3⤵
    - Launches sc.exe
    PID:2504
- - C:\Windows\SysWOW64\sc.exe
    C:\Windows\system32\sc.exe config wscsvc start= disabled
    3⤵
    - Launches sc.exe
    PID:3884
- - C:\Windows\SysWOW64\sc.exe
    C:\Windows\system32\sc.exe config srservice start= disabled
    3⤵
    - Launches sc.exe
    PID:1072
- - 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:2272
- - 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:4392
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c rmdir F:\Autorun.inf /s /q
    3⤵
    PID:1180
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c attrib -s -h -r F:\Autorun.inf\*.* /s /d
    3⤵
    PID:3708
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -s -h -r F:\Autorun.inf\*.* /s /d
      4⤵
      Views/modifies file attributes
      PID:3632
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c attrib -s -h -r C:\Autorun.inf\*.* /s /d
    3⤵
    PID:2712
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -s -h -r C:\Autorun.inf\*.* /s /d
      4⤵
      Views/modifies file attributes
      PID:1380
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c rmdir C:\Autorun.inf /s /q
    3⤵
    PID:2064
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c attrib -s -h -r F:\Autorun.inf\*.* /s /d
    3⤵
    PID:628
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -s -h -r F:\Autorun.inf\*.* /s /d
      4⤵
      Views/modifies file attributes
      PID:4576
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c rmdir F:\Autorun.inf /s /q
    3⤵
    PID:888
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c attrib -s -h -r C:\Autorun.inf\*.* /s /d
    3⤵
    PID:4904
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -s -h -r C:\Autorun.inf\*.* /s /d
      4⤵
      Views/modifies file attributes
      PID:4436
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c rmdir C:\Autorun.inf /s /q
    3⤵
    PID:4536
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c attrib -s -h -r F:\Autorun.inf\*.* /s /d
    3⤵
    PID:3196
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -s -h -r F:\Autorun.inf\*.* /s /d
      4⤵
      Views/modifies file attributes
      PID:1632
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c rmdir F:\Autorun.inf /s /q
    3⤵
    PID:4280
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c attrib -s -h -r C:\Autorun.inf\*.* /s /d
    3⤵
    PID:2292
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -s -h -r C:\Autorun.inf\*.* /s /d
      4⤵
      Views/modifies file attributes
      PID:1812
- - 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:3484
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -s -h -r F:\Autorun.inf\*.* /s /d
      4⤵
      Views/modifies file attributes
      PID:1696
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c rmdir F:\Autorun.inf /s /q
    3⤵
    PID:3588
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c rmdir C:\Autorun.inf /s /q
    3⤵
    PID:4452
- - C:\Windows\SysWOW64\cmd.exe
    cmd /c attrib -s -h -r C:\Autorun.inf\*.* /s /d
    3⤵
    PID:832
  - - C:\Windows\SysWOW64\attrib.exe
      attrib -s -h -r C:\Autorun.inf\*.* /s /d
      4⤵
      Views/modifies file attributes
      PID:4004
- C:\Windows\SysWOW64\net.exe
  net.exe stop wscsvc /y
  2⤵
  PID:1804
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop wscsvc /y
    3⤵
    PID:3732
- C:\Windows\SysWOW64\net.exe
  net.exe stop sharedaccess /y
  2⤵
  PID:2280
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop sharedaccess /y
    3⤵
    PID:1020
- C:\Windows\SysWOW64\net.exe
  net.exe stop wuauserv /y
  2⤵
  PID:3520
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop wuauserv /y
    3⤵
    PID:3548
- C:\Windows\SysWOW64\net.exe
  net.exe stop srservice /y
  2⤵
  PID:1816
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop srservice /y
    3⤵
    PID:2060
- C:\Windows\SysWOW64\net.exe
  net.exe stop 360timeprot /y
  2⤵
  PID:3336
- - C:\Windows\SysWOW64\net1.exe
    C:\Windows\system32\net1 stop 360timeprot /y
    3⤵
    PID:2076

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\System\KavUpda.exe

Filesize
1.0MB

MD5
3f97e728df4377a78f25014eb4fcac3e

SHA1
f3494fc08c90a83b1c9eaf27df1cd14097ea4b2c

SHA256
90f63ffa83f4f91c969f05495bc4c36ca404cd6af71130e0895b5a5fda5e1e3d

SHA512
28da18924a040d83549a9f35f703d443e8e637c8c82cdfa33eaa10226ece393653e27e9454f7c9afc9a205506934c4038fd1724fff564b189d8bac920ef4a02b

Download Submit
C:\Windows\regedt32.sys

Filesize
2KB

MD5
e7d7ec66bd61fac3843c98650b0c68f6

SHA1
a15ae06e1be51038863650746368a71024539bac

SHA256
6475d5ecc14fea090774be55723d2d52b7ec7670527a7dbd61edf28c77944cb8

SHA512
ac9e9893f5a0af03957731445f63279085f164e9a968d706a99d13012e4459314a7ccc32dc48f62379d69e21a0953c13543c9ded38b5ad5fbc346aa442af1ae6

Download Submit
F:\Autorun.inf

Filesize
237B

MD5
94bcd02c5afd5918b4446345e7a5ded9

SHA1
79839238e84be225132e1382fae6333dfc4906a1

SHA256
5d9f41e4f886926dae2ed8a57807708110d3c6964ab462be21462bff0088d9a1

SHA512
149f6bd49fc3b62fa5f41666bfb3a58060514eec1b61c6aa1ac4c75417c840b028e701eb5533460eb00e2fee8543379564bc47d7477264771d81b99a0caab500

Download Submit
memory/2244-0-0x0000000000400000-0x0000000000436000-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