amadey | 91c6a3d9a458e15c67237718bc4c74cf7d8a38ac828b9ad010f2d1b0a25a36a7

Virtualization/Sandbox Evasion

Processes:

axplont.exea48d3a0f1f.exe91c6a3d9a458e15c67237718bc4c74cf7d8a38ac828b9ad010f2d1b0a25a36a7.exeffaf44f106.exeaxplont.exeexplortu.exeaxplont.exeexplortu.exeexplortu.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	axplont.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	a48d3a0f1f.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	91c6a3d9a458e15c67237718bc4c74cf7d8a38ac828b9ad010f2d1b0a25a36a7.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	ffaf44f106.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
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explortu.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explortu.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:

91c6a3d9a458e15c67237718bc4c74cf7d8a38ac828b9ad010f2d1b0a25a36a7.exeffaf44f106.exeexplortu.exeexplortu.exeaxplont.exeaxplont.exeaxplont.exea48d3a0f1f.exeexplortu.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	91c6a3d9a458e15c67237718bc4c74cf7d8a38ac828b9ad010f2d1b0a25a36a7.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	ffaf44f106.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explortu.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explortu.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explortu.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	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	91c6a3d9a458e15c67237718bc4c74cf7d8a38ac828b9ad010f2d1b0a25a36a7.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	ffaf44f106.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	a48d3a0f1f.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	a48d3a0f1f.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	axplont.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explortu.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	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:

91c6a3d9a458e15c67237718bc4c74cf7d8a38ac828b9ad010f2d1b0a25a36a7.exeexplortu.exeffaf44f106.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	91c6a3d9a458e15c67237718bc4c74cf7d8a38ac828b9ad010f2d1b0a25a36a7.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	explortu.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	ffaf44f106.exe

Executes dropped EXE 8 IoCs

Processes:

explortu.exeffaf44f106.exeaxplont.exea48d3a0f1f.exeexplortu.exeaxplont.exeexplortu.exeaxplont.exe

pid process

1900 explortu.exe
3248 ffaf44f106.exe
228 axplont.exe
4876 a48d3a0f1f.exe
4768 explortu.exe
1284 axplont.exe
4828 explortu.exe
904 axplont.exe

pid	process
1900	explortu.exe
3248	ffaf44f106.exe
228	axplont.exe
4876	a48d3a0f1f.exe
4768	explortu.exe
1284	axplont.exe
4828	explortu.exe
904	axplont.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:

axplont.exeaxplont.exeexplortu.exeaxplont.exeexplortu.exe91c6a3d9a458e15c67237718bc4c74cf7d8a38ac828b9ad010f2d1b0a25a36a7.exeexplortu.exeffaf44f106.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Wine	axplont.exe
Key opened	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Wine	axplont.exe
Key opened	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Wine	explortu.exe
Key opened	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Wine	axplont.exe
Key opened	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Wine	explortu.exe
Key opened	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Wine	91c6a3d9a458e15c67237718bc4c74cf7d8a38ac828b9ad010f2d1b0a25a36a7.exe
Key opened	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Wine	explortu.exe
Key opened	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Wine	ffaf44f106.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\a48d3a0f1f.exe	themida
behavioral1/memory/4876-75-0x0000000000770000-0x0000000000DE4000-memory.dmp	themida
behavioral1/memory/4876-76-0x0000000000770000-0x0000000000DE4000-memory.dmp	themida
behavioral1/memory/4876-77-0x0000000000770000-0x0000000000DE4000-memory.dmp	themida
behavioral1/memory/4876-74-0x0000000000770000-0x0000000000DE4000-memory.dmp	themida
behavioral1/memory/4876-78-0x0000000000770000-0x0000000000DE4000-memory.dmp	themida
behavioral1/memory/4876-81-0x0000000000770000-0x0000000000DE4000-memory.dmp	themida
behavioral1/memory/4876-80-0x0000000000770000-0x0000000000DE4000-memory.dmp	themida
behavioral1/memory/4876-79-0x0000000000770000-0x0000000000DE4000-memory.dmp	themida
behavioral1/memory/4876-86-0x0000000000770000-0x0000000000DE4000-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-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\a48d3a0f1f.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1000005001\\a48d3a0f1f.exe"	explortu.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

a48d3a0f1f.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA a48d3a0f1f.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	a48d3a0f1f.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 8 IoCs

Processes:

91c6a3d9a458e15c67237718bc4c74cf7d8a38ac828b9ad010f2d1b0a25a36a7.exeexplortu.exeffaf44f106.exeaxplont.exeaxplont.exeexplortu.exeaxplont.exeexplortu.exe

pid	process
4596	91c6a3d9a458e15c67237718bc4c74cf7d8a38ac828b9ad010f2d1b0a25a36a7.exe
1900	explortu.exe
3248	ffaf44f106.exe
228	axplont.exe
1284	axplont.exe
4768	explortu.exe
904	axplont.exe
4828	explortu.exe

Drops file in Windows directory 2 IoCs

Processes:

91c6a3d9a458e15c67237718bc4c74cf7d8a38ac828b9ad010f2d1b0a25a36a7.exeffaf44f106.exe

description	ioc	process
File created	C:\Windows\Tasks\explortu.job	91c6a3d9a458e15c67237718bc4c74cf7d8a38ac828b9ad010f2d1b0a25a36a7.exe
File created	C:\Windows\Tasks\axplont.job	ffaf44f106.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:

91c6a3d9a458e15c67237718bc4c74cf7d8a38ac828b9ad010f2d1b0a25a36a7.exeexplortu.exeffaf44f106.exeaxplont.exeaxplont.exeexplortu.exeexplortu.exeaxplont.exe

pid	process
4596	91c6a3d9a458e15c67237718bc4c74cf7d8a38ac828b9ad010f2d1b0a25a36a7.exe
4596	91c6a3d9a458e15c67237718bc4c74cf7d8a38ac828b9ad010f2d1b0a25a36a7.exe
1900	explortu.exe
1900	explortu.exe
3248	ffaf44f106.exe
3248	ffaf44f106.exe
228	axplont.exe
228	axplont.exe
1284	axplont.exe
1284	axplont.exe
4768	explortu.exe
4768	explortu.exe
4828	explortu.exe
4828	explortu.exe
904	axplont.exe
904	axplont.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

ffaf44f106.exe

pid process

3248 ffaf44f106.exe

pid	process
3248	ffaf44f106.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

91c6a3d9a458e15c67237718bc4c74cf7d8a38ac828b9ad010f2d1b0a25a36a7.exeexplortu.exeffaf44f106.exe

description	pid	process	target process
PID 4596 wrote to memory of 1900	4596	91c6a3d9a458e15c67237718bc4c74cf7d8a38ac828b9ad010f2d1b0a25a36a7.exe	explortu.exe
PID 4596 wrote to memory of 1900	4596	91c6a3d9a458e15c67237718bc4c74cf7d8a38ac828b9ad010f2d1b0a25a36a7.exe	explortu.exe
PID 4596 wrote to memory of 1900	4596	91c6a3d9a458e15c67237718bc4c74cf7d8a38ac828b9ad010f2d1b0a25a36a7.exe	explortu.exe
PID 1900 wrote to memory of 3240	1900	explortu.exe	explortu.exe
PID 1900 wrote to memory of 3240	1900	explortu.exe	explortu.exe
PID 1900 wrote to memory of 3240	1900	explortu.exe	explortu.exe
PID 1900 wrote to memory of 3248	1900	explortu.exe	ffaf44f106.exe
PID 1900 wrote to memory of 3248	1900	explortu.exe	ffaf44f106.exe
PID 1900 wrote to memory of 3248	1900	explortu.exe	ffaf44f106.exe
PID 3248 wrote to memory of 228	3248	ffaf44f106.exe	axplont.exe
PID 3248 wrote to memory of 228	3248	ffaf44f106.exe	axplont.exe
PID 3248 wrote to memory of 228	3248	ffaf44f106.exe	axplont.exe
PID 1900 wrote to memory of 4876	1900	explortu.exe	a48d3a0f1f.exe
PID 1900 wrote to memory of 4876	1900	explortu.exe	a48d3a0f1f.exe
PID 1900 wrote to memory of 4876	1900	explortu.exe	a48d3a0f1f.exe

C:\Users\Admin\AppData\Local\Temp\91c6a3d9a458e15c67237718bc4c74cf7d8a38ac828b9ad010f2d1b0a25a36a7.exe
"C:\Users\Admin\AppData\Local\Temp\91c6a3d9a458e15c67237718bc4c74cf7d8a38ac828b9ad010f2d1b0a25a36a7.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:4596

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:1900

C:\Users\Admin\AppData\Local\Temp\9217037dc9\explortu.exe
"C:\Users\Admin\AppData\Local\Temp\9217037dc9\explortu.exe"
3⤵
PID:3240

C:\Users\Admin\1000004002\ffaf44f106.exe
"C:\Users\Admin\1000004002\ffaf44f106.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 FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:3248

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:228

C:\Users\Admin\AppData\Local\Temp\1000005001\a48d3a0f1f.exe
"C:\Users\Admin\AppData\Local\Temp\1000005001\a48d3a0f1f.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:4876

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:1284

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:4768

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:4828

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:904

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