e599a6fb8545e8ae0064f18645237a22c1157611911d197fe50cbf652f87d8d7

General

Target

e599a6fb8545e8ae0064f18645237a22c1157611911d197fe50cbf652f87d8d7.exe
Size

616KB
MD5

9127f9199e08d18807496c56e67ec13a
SHA1

394e5d81c0a16bbcf7ac72851945904aa88caa5d
SHA256

e599a6fb8545e8ae0064f18645237a22c1157611911d197fe50cbf652f87d8d7
SHA512

218fd38883071c1a3503c4d05c7dd7d342fbf58cd7dc2e94a6b36de211701418ead964839274f3c6a6b09ef77ae567f768e8d054405b940b216efcc3df678770

Score

10^/10

adware persistence stealer

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

e599a6fb8545e8ae0064f18645237a22c1157611911d197fe50cbf652f87d8d7.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "Explorer.exe"	e599a6fb8545e8ae0064f18645237a22c1157611911d197fe50cbf652f87d8d7.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,"	e599a6fb8545e8ae0064f18645237a22c1157611911d197fe50cbf652f87d8d7.exe

Modifies system executable filetype association 2 TTPs 1 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1042

Processes:

e599a6fb8545e8ae0064f18645237a22c1157611911d197fe50cbf652f87d8d7.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\drivers\\spools.exe \"%1\" %*"	e599a6fb8545e8ae0064f18645237a22c1157611911d197fe50cbf652f87d8d7.exe

Drops file in Drivers directory 2 IoCs

Processes:

e599a6fb8545e8ae0064f18645237a22c1157611911d197fe50cbf652f87d8d7.exe

description	ioc	process
File created	C:\Windows\SysWOW64\drivers\spools.exe	e599a6fb8545e8ae0064f18645237a22c1157611911d197fe50cbf652f87d8d7.exe
File opened for modification	C:\Windows\SysWOW64\drivers\spools.exe	e599a6fb8545e8ae0064f18645237a22c1157611911d197fe50cbf652f87d8d7.exe

Sets service image path in registry 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1060

Modify Registry
T1112

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

e599a6fb8545e8ae0064f18645237a22c1157611911d197fe50cbf652f87d8d7.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\ntuser = "C:\\Windows\\system32\\drivers\\spools.exe"	e599a6fb8545e8ae0064f18645237a22c1157611911d197fe50cbf652f87d8d7.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\autoload = "C:\\Users\\Admin\\cftmon.exe"	e599a6fb8545e8ae0064f18645237a22c1157611911d197fe50cbf652f87d8d7.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ntuser = "C:\\Windows\\system32\\drivers\\spools.exe"	e599a6fb8545e8ae0064f18645237a22c1157611911d197fe50cbf652f87d8d7.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\autoload = "C:\\Users\\Admin\\cftmon.exe"	e599a6fb8545e8ae0064f18645237a22c1157611911d197fe50cbf652f87d8d7.exe

Installs/modifies Browser Helper Object 2 TTPs
BHOs are DLL modules which act as plugins for Internet Explorer.
stealer adware

Modify Registry
T1112

Browser Extensions
T1176

Modifies WinLogon 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

e599a6fb8545e8ae0064f18645237a22c1157611911d197fe50cbf652f87d8d7.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\UIHost = "logonui.exe"	e599a6fb8545e8ae0064f18645237a22c1157611911d197fe50cbf652f87d8d7.exe

Modifies registry class 1 IoCs

Processes:

e599a6fb8545e8ae0064f18645237a22c1157611911d197fe50cbf652f87d8d7.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\SysWow64\\drivers\\spools.exe \"%1\" %*"	e599a6fb8545e8ae0064f18645237a22c1157611911d197fe50cbf652f87d8d7.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

e599a6fb8545e8ae0064f18645237a22c1157611911d197fe50cbf652f87d8d7.exe

description	pid	process	target process
PID 752 wrote to memory of 1664	752	e599a6fb8545e8ae0064f18645237a22c1157611911d197fe50cbf652f87d8d7.exe	reg.exe
PID 752 wrote to memory of 1664	752	e599a6fb8545e8ae0064f18645237a22c1157611911d197fe50cbf652f87d8d7.exe	reg.exe
PID 752 wrote to memory of 1664	752	e599a6fb8545e8ae0064f18645237a22c1157611911d197fe50cbf652f87d8d7.exe	reg.exe
PID 752 wrote to memory of 1664	752	e599a6fb8545e8ae0064f18645237a22c1157611911d197fe50cbf652f87d8d7.exe	reg.exe

C:\Users\Admin\AppData\Local\Temp\e599a6fb8545e8ae0064f18645237a22c1157611911d197fe50cbf652f87d8d7.exe
"C:\Users\Admin\AppData\Local\Temp\e599a6fb8545e8ae0064f18645237a22c1157611911d197fe50cbf652f87d8d7.exe"
1⤵
- Modifies WinLogon for persistence
- Modifies system executable filetype association
- Drops file in Drivers directory
- Adds Run key to start application
- Modifies WinLogon
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:752