amadey | 7ef012907eb337ad94d0635a9d1a1dd64ccb32b5c193a5bb732eee3dd22013da

Virtualization/Sandbox Evasion

Processes:

7ef012907eb337ad94d0635a9d1a1dd64ccb32b5c193a5bb732eee3dd22013da.exeexplorgu.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	7ef012907eb337ad94d0635a9d1a1dd64ccb32b5c193a5bb732eee3dd22013da.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explorgu.exe

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exerundll32.exe

flow pid process

4 2444 rundll32.exe
7 2256 rundll32.exe
Downloads MZ/PE file

flow	pid	process
4	2444	rundll32.exe
7	2256	rundll32.exe

Checks BIOS information in registry 2 TTPs 4 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

System Information Discovery

T1082

Processes:

7ef012907eb337ad94d0635a9d1a1dd64ccb32b5c193a5bb732eee3dd22013da.exeexplorgu.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	7ef012907eb337ad94d0635a9d1a1dd64ccb32b5c193a5bb732eee3dd22013da.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	7ef012907eb337ad94d0635a9d1a1dd64ccb32b5c193a5bb732eee3dd22013da.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explorgu.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorgu.exe

Executes dropped EXE 1 IoCs

Processes:

explorgu.exe

pid process

4816 explorgu.exe

pid	process
4816	explorgu.exe

Identifies Wine through registry keys 2 TTPs 2 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

Virtualization/Sandbox Evasion

Processes:

explorgu.exe7ef012907eb337ad94d0635a9d1a1dd64ccb32b5c193a5bb732eee3dd22013da.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3360119756-166634443-3920521668-1000\Software\Wine	explorgu.exe
Key opened	\REGISTRY\USER\S-1-5-21-3360119756-166634443-3920521668-1000\Software\Wine	7ef012907eb337ad94d0635a9d1a1dd64ccb32b5c193a5bb732eee3dd22013da.exe

Loads dropped DLL 3 IoCs

Processes:

rundll32.exerundll32.exerundll32.exe

pid process

1824 rundll32.exe
2444 rundll32.exe
2256 rundll32.exe
Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
Reads local data of messenger clients 2 TTPs
Infostealers often target stored data of messaging applications, which can include saved credentials and account information.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

Processes:

7ef012907eb337ad94d0635a9d1a1dd64ccb32b5c193a5bb732eee3dd22013da.exeexplorgu.exe

pid process

2772 7ef012907eb337ad94d0635a9d1a1dd64ccb32b5c193a5bb732eee3dd22013da.exe
4816 explorgu.exe
Drops file in Windows directory 1 IoCs

Processes:

7ef012907eb337ad94d0635a9d1a1dd64ccb32b5c193a5bb732eee3dd22013da.exe

description ioc process

File created C:\Windows\Tasks\explorgu.job 7ef012907eb337ad94d0635a9d1a1dd64ccb32b5c193a5bb732eee3dd22013da.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
1824	rundll32.exe
2444	rundll32.exe
2256	rundll32.exe

description	ioc	process
File created	C:\Windows\Tasks\explorgu.job	7ef012907eb337ad94d0635a9d1a1dd64ccb32b5c193a5bb732eee3dd22013da.exe

Suspicious behavior: EnumeratesProcesses 17 IoCs

Processes:

7ef012907eb337ad94d0635a9d1a1dd64ccb32b5c193a5bb732eee3dd22013da.exeexplorgu.exerundll32.exepowershell.exe

pid	process
2772	7ef012907eb337ad94d0635a9d1a1dd64ccb32b5c193a5bb732eee3dd22013da.exe
2772	7ef012907eb337ad94d0635a9d1a1dd64ccb32b5c193a5bb732eee3dd22013da.exe
4816	explorgu.exe
4816	explorgu.exe
2444	rundll32.exe
2444	rundll32.exe
2444	rundll32.exe
2444	rundll32.exe
2444	rundll32.exe
2444	rundll32.exe
2444	rundll32.exe
2444	rundll32.exe
2444	rundll32.exe
2444	rundll32.exe
1244	powershell.exe
1244	powershell.exe
1244	powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 1244 powershell.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

7ef012907eb337ad94d0635a9d1a1dd64ccb32b5c193a5bb732eee3dd22013da.exe

pid process

2772 7ef012907eb337ad94d0635a9d1a1dd64ccb32b5c193a5bb732eee3dd22013da.exe

description	pid	process
Token: SeDebugPrivilege	1244	powershell.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

explorgu.exerundll32.exerundll32.exe

description	pid	process	target process
PID 4816 wrote to memory of 1824	4816	explorgu.exe	rundll32.exe
PID 4816 wrote to memory of 1824	4816	explorgu.exe	rundll32.exe
PID 4816 wrote to memory of 1824	4816	explorgu.exe	rundll32.exe
PID 1824 wrote to memory of 2444	1824	rundll32.exe	rundll32.exe
PID 1824 wrote to memory of 2444	1824	rundll32.exe	rundll32.exe
PID 2444 wrote to memory of 1808	2444	rundll32.exe	netsh.exe
PID 2444 wrote to memory of 1808	2444	rundll32.exe	netsh.exe
PID 2444 wrote to memory of 1244	2444	rundll32.exe	powershell.exe
PID 2444 wrote to memory of 1244	2444	rundll32.exe	powershell.exe
PID 4816 wrote to memory of 2256	4816	explorgu.exe	rundll32.exe
PID 4816 wrote to memory of 2256	4816	explorgu.exe	rundll32.exe
PID 4816 wrote to memory of 2256	4816	explorgu.exe	rundll32.exe

C:\Users\Admin\AppData\Local\Temp\7ef012907eb337ad94d0635a9d1a1dd64ccb32b5c193a5bb732eee3dd22013da.exe
"C:\Users\Admin\AppData\Local\Temp\7ef012907eb337ad94d0635a9d1a1dd64ccb32b5c193a5bb732eee3dd22013da.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
PID:2772

C:\Users\Admin\AppData\Local\Temp\00c07260dc\explorgu.exe
C:\Users\Admin\AppData\Local\Temp\00c07260dc\explorgu.exe
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4816

C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\006700e5a2ab05\cred64.dll, Main
2⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1824

C:\Windows\system32\rundll32.exe
"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\006700e5a2ab05\cred64.dll, Main
3⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2444

C:\Windows\system32\netsh.exe
netsh wlan show profiles
4⤵
PID:1808

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell -Command Compress-Archive -Path 'C:\Users\Admin\AppData\Local\Temp\_Files_\' -DestinationPath 'C:\Users\Admin\AppData\Local\Temp\360119756166_Desktop.zip' -CompressionLevel Optimal
4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1244

C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\006700e5a2ab05\clip64.dll, Main
2⤵
- Blocklisted process makes network request
- Loads dropped DLL
PID:2256

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

Credential Access

Unsecured Credentials

3

T1552

Credentials In Files

T1552.001

Credentials in Registry

1

T1552.002

Discovery

Query Registry

3

Virtualization/Sandbox Evasion

System Information Discovery