amadey | d976872ec1c5e744ee984b6889240c57c9461c6dba5edaacade16add2f38babd

Virtualization/Sandbox Evasion

Processes:

d976872ec1c5e744ee984b6889240c57c9461c6dba5edaacade16add2f38babd.exe050eceb111.exeaea588a890.exeexplortu.exeexplortu.exeaxplont.exeaxplont.exeexplortu.exeaxplont.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	d976872ec1c5e744ee984b6889240c57c9461c6dba5edaacade16add2f38babd.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	050eceb111.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	aea588a890.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explortu.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explortu.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	axplont.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	axplont.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explortu.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	axplont.exe

Downloads MZ/PE file

Checks BIOS information in registry 2 TTPs 18 IoCs

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

Query Registry

System Information Discovery

T1082

Processes:

explortu.exe050eceb111.exeaea588a890.exeexplortu.exeexplortu.exed976872ec1c5e744ee984b6889240c57c9461c6dba5edaacade16add2f38babd.exeaxplont.exeaxplont.exeaxplont.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explortu.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	050eceb111.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	aea588a890.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explortu.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explortu.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	d976872ec1c5e744ee984b6889240c57c9461c6dba5edaacade16add2f38babd.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explortu.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explortu.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explortu.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	d976872ec1c5e744ee984b6889240c57c9461c6dba5edaacade16add2f38babd.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	050eceb111.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	aea588a890.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	axplont.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	axplont.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	axplont.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	axplont.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	axplont.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	axplont.exe

Checks computer location settings 2 TTPs 3 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

System Information Discovery

T1082

Processes:

d976872ec1c5e744ee984b6889240c57c9461c6dba5edaacade16add2f38babd.exeexplortu.exe050eceb111.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	d976872ec1c5e744ee984b6889240c57c9461c6dba5edaacade16add2f38babd.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	explortu.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	050eceb111.exe

Executes dropped EXE 8 IoCs

Processes:

explortu.exe050eceb111.exeaxplont.exeaea588a890.exeaxplont.exeexplortu.exeaxplont.exeexplortu.exe

pid process

2268 explortu.exe
2244 050eceb111.exe
4780 axplont.exe
368 aea588a890.exe
2880 axplont.exe
1396 explortu.exe
3480 axplont.exe
4916 explortu.exe

pid	process
2268	explortu.exe
2244	050eceb111.exe
4780	axplont.exe
368	aea588a890.exe
2880	axplont.exe
1396	explortu.exe
3480	axplont.exe
4916	explortu.exe

Identifies Wine through registry keys 2 TTPs 8 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:

d976872ec1c5e744ee984b6889240c57c9461c6dba5edaacade16add2f38babd.exeexplortu.exe050eceb111.exeaxplont.exeaxplont.exeexplortu.exeaxplont.exeexplortu.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Software\Wine	d976872ec1c5e744ee984b6889240c57c9461c6dba5edaacade16add2f38babd.exe
Key opened	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Software\Wine	explortu.exe
Key opened	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Software\Wine	050eceb111.exe
Key opened	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Software\Wine	axplont.exe
Key opened	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Software\Wine	axplont.exe
Key opened	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Software\Wine	explortu.exe
Key opened	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Software\Wine	axplont.exe
Key opened	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Software\Wine	explortu.exe

Themida packer 10 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\1000005001\aea588a890.exe	themida
behavioral1/memory/368-74-0x0000000000690000-0x0000000000D08000-memory.dmp	themida
behavioral1/memory/368-73-0x0000000000690000-0x0000000000D08000-memory.dmp	themida
behavioral1/memory/368-75-0x0000000000690000-0x0000000000D08000-memory.dmp	themida
behavioral1/memory/368-76-0x0000000000690000-0x0000000000D08000-memory.dmp	themida
behavioral1/memory/368-77-0x0000000000690000-0x0000000000D08000-memory.dmp	themida
behavioral1/memory/368-78-0x0000000000690000-0x0000000000D08000-memory.dmp	themida
behavioral1/memory/368-80-0x0000000000690000-0x0000000000D08000-memory.dmp	themida
behavioral1/memory/368-79-0x0000000000690000-0x0000000000D08000-memory.dmp	themida
behavioral1/memory/368-84-0x0000000000690000-0x0000000000D08000-memory.dmp	themida

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

explortu.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\aea588a890.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1000005001\\aea588a890.exe"	explortu.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

aea588a890.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA aea588a890.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	aea588a890.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 8 IoCs

Processes:

d976872ec1c5e744ee984b6889240c57c9461c6dba5edaacade16add2f38babd.exeexplortu.exe050eceb111.exeaxplont.exeaxplont.exeexplortu.exeexplortu.exeaxplont.exe

pid	process
3100	d976872ec1c5e744ee984b6889240c57c9461c6dba5edaacade16add2f38babd.exe
2268	explortu.exe
2244	050eceb111.exe
4780	axplont.exe
2880	axplont.exe
1396	explortu.exe
4916	explortu.exe
3480	axplont.exe

Drops file in Windows directory 2 IoCs

Processes:

d976872ec1c5e744ee984b6889240c57c9461c6dba5edaacade16add2f38babd.exe050eceb111.exe

description	ioc	process
File created	C:\Windows\Tasks\explortu.job	d976872ec1c5e744ee984b6889240c57c9461c6dba5edaacade16add2f38babd.exe
File created	C:\Windows\Tasks\axplont.job	050eceb111.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 16 IoCs

Processes:

d976872ec1c5e744ee984b6889240c57c9461c6dba5edaacade16add2f38babd.exeexplortu.exe050eceb111.exeaxplont.exeaxplont.exeexplortu.exeaxplont.exeexplortu.exe

pid	process
3100	d976872ec1c5e744ee984b6889240c57c9461c6dba5edaacade16add2f38babd.exe
3100	d976872ec1c5e744ee984b6889240c57c9461c6dba5edaacade16add2f38babd.exe
2268	explortu.exe
2268	explortu.exe
2244	050eceb111.exe
2244	050eceb111.exe
4780	axplont.exe
4780	axplont.exe
2880	axplont.exe
2880	axplont.exe
1396	explortu.exe
1396	explortu.exe
3480	axplont.exe
3480	axplont.exe
4916	explortu.exe
4916	explortu.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

d976872ec1c5e744ee984b6889240c57c9461c6dba5edaacade16add2f38babd.exeexplortu.exe050eceb111.exe

description	pid	process	target process
PID 3100 wrote to memory of 2268	3100	d976872ec1c5e744ee984b6889240c57c9461c6dba5edaacade16add2f38babd.exe	explortu.exe
PID 3100 wrote to memory of 2268	3100	d976872ec1c5e744ee984b6889240c57c9461c6dba5edaacade16add2f38babd.exe	explortu.exe
PID 3100 wrote to memory of 2268	3100	d976872ec1c5e744ee984b6889240c57c9461c6dba5edaacade16add2f38babd.exe	explortu.exe
PID 2268 wrote to memory of 680	2268	explortu.exe	explortu.exe
PID 2268 wrote to memory of 680	2268	explortu.exe	explortu.exe
PID 2268 wrote to memory of 680	2268	explortu.exe	explortu.exe
PID 2268 wrote to memory of 2244	2268	explortu.exe	050eceb111.exe
PID 2268 wrote to memory of 2244	2268	explortu.exe	050eceb111.exe
PID 2268 wrote to memory of 2244	2268	explortu.exe	050eceb111.exe
PID 2244 wrote to memory of 4780	2244	050eceb111.exe	axplont.exe
PID 2244 wrote to memory of 4780	2244	050eceb111.exe	axplont.exe
PID 2244 wrote to memory of 4780	2244	050eceb111.exe	axplont.exe
PID 2268 wrote to memory of 368	2268	explortu.exe	aea588a890.exe
PID 2268 wrote to memory of 368	2268	explortu.exe	aea588a890.exe
PID 2268 wrote to memory of 368	2268	explortu.exe	aea588a890.exe

C:\Users\Admin\AppData\Local\Temp\d976872ec1c5e744ee984b6889240c57c9461c6dba5edaacade16add2f38babd.exe
"C:\Users\Admin\AppData\Local\Temp\d976872ec1c5e744ee984b6889240c57c9461c6dba5edaacade16add2f38babd.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks computer location settings
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3100

C:\Users\Admin\AppData\Local\Temp\9217037dc9\explortu.exe
"C:\Users\Admin\AppData\Local\Temp\9217037dc9\explortu.exe"
2⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks computer location settings
- Executes dropped EXE
- Identifies Wine through registry keys
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2268

C:\Users\Admin\AppData\Local\Temp\9217037dc9\explortu.exe
"C:\Users\Admin\AppData\Local\Temp\9217037dc9\explortu.exe"
3⤵
PID:680

C:\Users\Admin\1000004002\050eceb111.exe
"C:\Users\Admin\1000004002\050eceb111.exe"
3⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks computer location settings
- Executes dropped EXE
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2244

C:\Users\Admin\AppData\Local\Temp\1b29d73536\axplont.exe
"C:\Users\Admin\AppData\Local\Temp\1b29d73536\axplont.exe"
4⤵
- 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:4780

C:\Users\Admin\AppData\Local\Temp\1000005001\aea588a890.exe
"C:\Users\Admin\AppData\Local\Temp\1000005001\aea588a890.exe"
3⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Checks whether UAC is enabled
PID:368

C:\Users\Admin\AppData\Local\Temp\1b29d73536\axplont.exe
C:\Users\Admin\AppData\Local\Temp\1b29d73536\axplont.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:2880

C:\Users\Admin\AppData\Local\Temp\9217037dc9\explortu.exe
C:\Users\Admin\AppData\Local\Temp\9217037dc9\explortu.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:1396

C:\Users\Admin\AppData\Local\Temp\1b29d73536\axplont.exe
C:\Users\Admin\AppData\Local\Temp\1b29d73536\axplont.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:3480

C:\Users\Admin\AppData\Local\Temp\9217037dc9\explortu.exe
C:\Users\Admin\AppData\Local\Temp\9217037dc9\explortu.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:4916

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

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

Virtualization/Sandbox Evasion

2

Modify Registry

T1112

Credential Access

Discovery

Query Registry

4

Virtualization/Sandbox Evasion

2