amadey | cc58fb670cf5b33b97010ed23cd0ccbe84fb46cf5631d88739efb8066ab827bf

Virtualization/Sandbox Evasion

Processes:

explorha.exeexplorha.exeexplorha.execc58fb670cf5b33b97010ed23cd0ccbe84fb46cf5631d88739efb8066ab827bf.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explorha.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explorha.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explorha.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	cc58fb670cf5b33b97010ed23cd0ccbe84fb46cf5631d88739efb8066ab827bf.exe

Blocklisted process makes network request 2 IoCs

Processes:

rundll32.exerundll32.exe

flow pid process

3 3368 rundll32.exe
4 4908 rundll32.exe
Downloads MZ/PE file

flow	pid	process
3	3368	rundll32.exe
4	4908	rundll32.exe

Checks BIOS information in registry 2 TTPs 8 IoCs

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

Query Registry

System Information Discovery

T1082

Processes:

explorha.exeexplorha.exeexplorha.execc58fb670cf5b33b97010ed23cd0ccbe84fb46cf5631d88739efb8066ab827bf.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorha.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explorha.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorha.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explorha.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorha.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	cc58fb670cf5b33b97010ed23cd0ccbe84fb46cf5631d88739efb8066ab827bf.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	cc58fb670cf5b33b97010ed23cd0ccbe84fb46cf5631d88739efb8066ab827bf.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explorha.exe

Executes dropped EXE 3 IoCs

Processes:

explorha.exeexplorha.exeexplorha.exe

pid process

1120 explorha.exe
4576 explorha.exe
4520 explorha.exe

pid	process
1120	explorha.exe
4576	explorha.exe
4520	explorha.exe

Identifies Wine through registry keys 2 TTPs 4 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:

cc58fb670cf5b33b97010ed23cd0ccbe84fb46cf5631d88739efb8066ab827bf.exeexplorha.exeexplorha.exeexplorha.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-160263616-143223877-1356318919-1000\Software\Wine	cc58fb670cf5b33b97010ed23cd0ccbe84fb46cf5631d88739efb8066ab827bf.exe
Key opened	\REGISTRY\USER\S-1-5-21-160263616-143223877-1356318919-1000\Software\Wine	explorha.exe
Key opened	\REGISTRY\USER\S-1-5-21-160263616-143223877-1356318919-1000\Software\Wine	explorha.exe
Key opened	\REGISTRY\USER\S-1-5-21-160263616-143223877-1356318919-1000\Software\Wine	explorha.exe

Loads dropped DLL 3 IoCs

Processes:

rundll32.exerundll32.exerundll32.exe

pid process

1228 rundll32.exe
3368 rundll32.exe
4908 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 4 IoCs

Processes:

cc58fb670cf5b33b97010ed23cd0ccbe84fb46cf5631d88739efb8066ab827bf.exeexplorha.exeexplorha.exeexplorha.exe

pid process

3136 cc58fb670cf5b33b97010ed23cd0ccbe84fb46cf5631d88739efb8066ab827bf.exe
1120 explorha.exe
4576 explorha.exe
4520 explorha.exe
Drops file in Windows directory 1 IoCs

Processes:

cc58fb670cf5b33b97010ed23cd0ccbe84fb46cf5631d88739efb8066ab827bf.exe

description ioc process

File created C:\Windows\Tasks\explorha.job cc58fb670cf5b33b97010ed23cd0ccbe84fb46cf5631d88739efb8066ab827bf.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
1228	rundll32.exe
3368	rundll32.exe
4908	rundll32.exe

description	ioc	process
File created	C:\Windows\Tasks\explorha.job	cc58fb670cf5b33b97010ed23cd0ccbe84fb46cf5631d88739efb8066ab827bf.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

Processes:

cc58fb670cf5b33b97010ed23cd0ccbe84fb46cf5631d88739efb8066ab827bf.exeexplorha.exerundll32.exepowershell.exeexplorha.exeexplorha.exe

pid	process
3136	cc58fb670cf5b33b97010ed23cd0ccbe84fb46cf5631d88739efb8066ab827bf.exe
3136	cc58fb670cf5b33b97010ed23cd0ccbe84fb46cf5631d88739efb8066ab827bf.exe
1120	explorha.exe
1120	explorha.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe
3368	rundll32.exe
2008	powershell.exe
2008	powershell.exe
4576	explorha.exe
4576	explorha.exe
4520	explorha.exe
4520	explorha.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 2008 powershell.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

cc58fb670cf5b33b97010ed23cd0ccbe84fb46cf5631d88739efb8066ab827bf.exe

pid process

3136 cc58fb670cf5b33b97010ed23cd0ccbe84fb46cf5631d88739efb8066ab827bf.exe

description	pid	process
Token: SeDebugPrivilege	2008	powershell.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

cc58fb670cf5b33b97010ed23cd0ccbe84fb46cf5631d88739efb8066ab827bf.exeexplorha.exerundll32.exerundll32.exe

description	pid	process	target process
PID 3136 wrote to memory of 1120	3136	cc58fb670cf5b33b97010ed23cd0ccbe84fb46cf5631d88739efb8066ab827bf.exe	explorha.exe
PID 3136 wrote to memory of 1120	3136	cc58fb670cf5b33b97010ed23cd0ccbe84fb46cf5631d88739efb8066ab827bf.exe	explorha.exe
PID 3136 wrote to memory of 1120	3136	cc58fb670cf5b33b97010ed23cd0ccbe84fb46cf5631d88739efb8066ab827bf.exe	explorha.exe
PID 1120 wrote to memory of 1228	1120	explorha.exe	rundll32.exe
PID 1120 wrote to memory of 1228	1120	explorha.exe	rundll32.exe
PID 1120 wrote to memory of 1228	1120	explorha.exe	rundll32.exe
PID 1228 wrote to memory of 3368	1228	rundll32.exe	rundll32.exe
PID 1228 wrote to memory of 3368	1228	rundll32.exe	rundll32.exe
PID 3368 wrote to memory of 1808	3368	rundll32.exe	netsh.exe
PID 3368 wrote to memory of 1808	3368	rundll32.exe	netsh.exe
PID 3368 wrote to memory of 2008	3368	rundll32.exe	powershell.exe
PID 3368 wrote to memory of 2008	3368	rundll32.exe	powershell.exe
PID 1120 wrote to memory of 4908	1120	explorha.exe	rundll32.exe
PID 1120 wrote to memory of 4908	1120	explorha.exe	rundll32.exe
PID 1120 wrote to memory of 4908	1120	explorha.exe	rundll32.exe

C:\Users\Admin\AppData\Local\Temp\cc58fb670cf5b33b97010ed23cd0ccbe84fb46cf5631d88739efb8066ab827bf.exe
"C:\Users\Admin\AppData\Local\Temp\cc58fb670cf5b33b97010ed23cd0ccbe84fb46cf5631d88739efb8066ab827bf.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
- Suspicious use of WriteProcessMemory
PID:3136

C:\Users\Admin\AppData\Local\Temp\09fd851a4f\explorha.exe
"C:\Users\Admin\AppData\Local\Temp\09fd851a4f\explorha.exe"
2⤵
- 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:1120

C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\a091ec0a6e2227\cred64.dll, Main
3⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1228

C:\Windows\system32\rundll32.exe
"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\a091ec0a6e2227\cred64.dll, Main
4⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3368

C:\Windows\system32\netsh.exe
netsh wlan show profiles
5⤵
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\602636161432_Desktop.zip' -CompressionLevel Optimal
5⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2008

C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\System32\rundll32.exe" C:\Users\Admin\AppData\Roaming\a091ec0a6e2227\clip64.dll, Main
3⤵
- Blocklisted process makes network request
- Loads dropped DLL
PID:4908

C:\Users\Admin\AppData\Local\Temp\09fd851a4f\explorha.exe
C:\Users\Admin\AppData\Local\Temp\09fd851a4f\explorha.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
PID:4576

C:\Users\Admin\AppData\Local\Temp\09fd851a4f\explorha.exe
C:\Users\Admin\AppData\Local\Temp\09fd851a4f\explorha.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
PID:4520

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