amadey | 7e89d67f17a156a6a7ca9c926cb56d17e81558470d8eb5cad2c11b8337fbc7d9

Virtualization/Sandbox Evasion

Processes:

7e89d67f17a156a6a7ca9c926cb56d17e81558470d8eb5cad2c11b8337fbc7d9.exeexplorku.exeexplorku.exeaxplons.exeexplorku.exeamers.exeaxplons.exe296646b157.exeaxplons.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	7e89d67f17a156a6a7ca9c926cb56d17e81558470d8eb5cad2c11b8337fbc7d9.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explorku.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explorku.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	axplons.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explorku.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	amers.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	axplons.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	296646b157.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	axplons.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

Processes:

7e89d67f17a156a6a7ca9c926cb56d17e81558470d8eb5cad2c11b8337fbc7d9.exe296646b157.exeaxplons.exeaxplons.exeexplorku.exeaxplons.exeamers.exeexplorku.exeexplorku.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	7e89d67f17a156a6a7ca9c926cb56d17e81558470d8eb5cad2c11b8337fbc7d9.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	296646b157.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	axplons.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	axplons.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	axplons.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	amers.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	amers.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	axplons.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	7e89d67f17a156a6a7ca9c926cb56d17e81558470d8eb5cad2c11b8337fbc7d9.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	axplons.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	296646b157.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	axplons.exe

Checks computer location settings 2 TTPs 3 IoCs

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

Query Registry

System Information Discovery

Processes:

7e89d67f17a156a6a7ca9c926cb56d17e81558470d8eb5cad2c11b8337fbc7d9.exeexplorku.exeamers.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	7e89d67f17a156a6a7ca9c926cb56d17e81558470d8eb5cad2c11b8337fbc7d9.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	explorku.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	amers.exe

Executes dropped EXE 8 IoCs

Processes:

explorku.exeamers.exeaxplons.exe296646b157.exeexplorku.exeaxplons.exeexplorku.exeaxplons.exe

pid process

2876 explorku.exe
3012 amers.exe
464 axplons.exe
2080 296646b157.exe
3204 explorku.exe
1900 axplons.exe
3296 explorku.exe
1120 axplons.exe

pid	process
2876	explorku.exe
3012	amers.exe
464	axplons.exe
2080	296646b157.exe
3204	explorku.exe
1900	axplons.exe
3296	explorku.exe
1120	axplons.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:

amers.exeaxplons.exeaxplons.exeaxplons.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Wine	amers.exe
Key opened	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Wine	axplons.exe
Key opened	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Wine	axplons.exe
Key opened	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Wine	axplons.exe

Themida packer 42 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/1284-1-0x0000000000D90000-0x00000000012E0000-memory.dmp	themida
behavioral1/memory/1284-3-0x0000000000D90000-0x00000000012E0000-memory.dmp	themida
behavioral1/memory/1284-7-0x0000000000D90000-0x00000000012E0000-memory.dmp	themida
behavioral1/memory/1284-6-0x0000000000D90000-0x00000000012E0000-memory.dmp	themida
behavioral1/memory/1284-4-0x0000000000D90000-0x00000000012E0000-memory.dmp	themida
behavioral1/memory/1284-2-0x0000000000D90000-0x00000000012E0000-memory.dmp	themida
behavioral1/memory/1284-0-0x0000000000D90000-0x00000000012E0000-memory.dmp	themida
behavioral1/memory/1284-5-0x0000000000D90000-0x00000000012E0000-memory.dmp	themida
C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe	themida
behavioral1/memory/2876-24-0x0000000000E10000-0x0000000001360000-memory.dmp	themida
behavioral1/memory/2876-23-0x0000000000E10000-0x0000000001360000-memory.dmp	themida
behavioral1/memory/2876-22-0x0000000000E10000-0x0000000001360000-memory.dmp	themida
behavioral1/memory/2876-21-0x0000000000E10000-0x0000000001360000-memory.dmp	themida
behavioral1/memory/1284-20-0x0000000000D90000-0x00000000012E0000-memory.dmp	themida
behavioral1/memory/2876-25-0x0000000000E10000-0x0000000001360000-memory.dmp	themida
behavioral1/memory/2876-27-0x0000000000E10000-0x0000000001360000-memory.dmp	themida
behavioral1/memory/2876-26-0x0000000000E10000-0x0000000001360000-memory.dmp	themida
behavioral1/memory/2876-28-0x0000000000E10000-0x0000000001360000-memory.dmp	themida
C:\Users\Admin\1000006002\296646b157.exe	themida
behavioral1/memory/2080-80-0x0000000000140000-0x00000000007C6000-memory.dmp	themida
behavioral1/memory/2080-83-0x0000000000140000-0x00000000007C6000-memory.dmp	themida
behavioral1/memory/2080-84-0x0000000000140000-0x00000000007C6000-memory.dmp	themida
behavioral1/memory/2080-82-0x0000000000140000-0x00000000007C6000-memory.dmp	themida
behavioral1/memory/2080-81-0x0000000000140000-0x00000000007C6000-memory.dmp	themida
behavioral1/memory/2080-85-0x0000000000140000-0x00000000007C6000-memory.dmp	themida
behavioral1/memory/2080-86-0x0000000000140000-0x00000000007C6000-memory.dmp	themida
behavioral1/memory/2080-88-0x0000000000140000-0x00000000007C6000-memory.dmp	themida
behavioral1/memory/2080-87-0x0000000000140000-0x00000000007C6000-memory.dmp	themida
behavioral1/memory/2876-89-0x0000000000E10000-0x0000000001360000-memory.dmp	themida
behavioral1/memory/2080-92-0x0000000000140000-0x00000000007C6000-memory.dmp	themida
behavioral1/memory/3204-107-0x0000000000E10000-0x0000000001360000-memory.dmp	themida
behavioral1/memory/3204-111-0x0000000000E10000-0x0000000001360000-memory.dmp	themida
behavioral1/memory/3204-109-0x0000000000E10000-0x0000000001360000-memory.dmp	themida
behavioral1/memory/3204-108-0x0000000000E10000-0x0000000001360000-memory.dmp	themida
behavioral1/memory/3204-110-0x0000000000E10000-0x0000000001360000-memory.dmp	themida
behavioral1/memory/3204-105-0x0000000000E10000-0x0000000001360000-memory.dmp	themida
behavioral1/memory/3204-104-0x0000000000E10000-0x0000000001360000-memory.dmp	themida
behavioral1/memory/3204-114-0x0000000000E10000-0x0000000001360000-memory.dmp	themida
behavioral1/memory/3296-135-0x0000000000E10000-0x0000000001360000-memory.dmp	themida
behavioral1/memory/3296-134-0x0000000000E10000-0x0000000001360000-memory.dmp	themida
behavioral1/memory/3296-138-0x0000000000E10000-0x0000000001360000-memory.dmp	themida
behavioral1/memory/3296-146-0x0000000000E10000-0x0000000001360000-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:

explorku.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\296646b157.exe = "C:\\Users\\Admin\\1000006002\\296646b157.exe"	explorku.exe

Checks whether UAC is enabled 1 TTPs 5 IoCs

evasion trojan

System Information Discovery

Processes:

explorku.exe296646b157.exeexplorku.exeexplorku.exe7e89d67f17a156a6a7ca9c926cb56d17e81558470d8eb5cad2c11b8337fbc7d9.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	explorku.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	296646b157.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	explorku.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	explorku.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	7e89d67f17a156a6a7ca9c926cb56d17e81558470d8eb5cad2c11b8337fbc7d9.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

Processes:

amers.exeaxplons.exeaxplons.exeaxplons.exe

pid process

3012 amers.exe
464 axplons.exe
1900 axplons.exe
1120 axplons.exe

pid	process
3012	amers.exe
464	axplons.exe
1900	axplons.exe
1120	axplons.exe

Drops file in Windows directory 2 IoCs

Processes:

7e89d67f17a156a6a7ca9c926cb56d17e81558470d8eb5cad2c11b8337fbc7d9.exeamers.exe

description	ioc	process
File created	C:\Windows\Tasks\explorku.job	7e89d67f17a156a6a7ca9c926cb56d17e81558470d8eb5cad2c11b8337fbc7d9.exe
File created	C:\Windows\Tasks\axplons.job	amers.exe

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

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

amers.exeaxplons.exeaxplons.exeaxplons.exe

pid process

3012 amers.exe
3012 amers.exe
464 axplons.exe
464 axplons.exe
1900 axplons.exe
1900 axplons.exe
1120 axplons.exe
1120 axplons.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

amers.exe

pid process

3012 amers.exe

pid	process
3012	amers.exe
3012	amers.exe
464	axplons.exe
464	axplons.exe
1900	axplons.exe
1900	axplons.exe
1120	axplons.exe
1120	axplons.exe

pid	process
3012	amers.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

7e89d67f17a156a6a7ca9c926cb56d17e81558470d8eb5cad2c11b8337fbc7d9.exeexplorku.exeamers.exe

description	pid	process	target process
PID 1284 wrote to memory of 2876	1284	7e89d67f17a156a6a7ca9c926cb56d17e81558470d8eb5cad2c11b8337fbc7d9.exe	explorku.exe
PID 1284 wrote to memory of 2876	1284	7e89d67f17a156a6a7ca9c926cb56d17e81558470d8eb5cad2c11b8337fbc7d9.exe	explorku.exe
PID 1284 wrote to memory of 2876	1284	7e89d67f17a156a6a7ca9c926cb56d17e81558470d8eb5cad2c11b8337fbc7d9.exe	explorku.exe
PID 2876 wrote to memory of 4344	2876	explorku.exe	explorku.exe
PID 2876 wrote to memory of 4344	2876	explorku.exe	explorku.exe
PID 2876 wrote to memory of 4344	2876	explorku.exe	explorku.exe
PID 2876 wrote to memory of 3012	2876	explorku.exe	amers.exe
PID 2876 wrote to memory of 3012	2876	explorku.exe	amers.exe
PID 2876 wrote to memory of 3012	2876	explorku.exe	amers.exe
PID 3012 wrote to memory of 464	3012	amers.exe	axplons.exe
PID 3012 wrote to memory of 464	3012	amers.exe	axplons.exe
PID 3012 wrote to memory of 464	3012	amers.exe	axplons.exe
PID 2876 wrote to memory of 2080	2876	explorku.exe	296646b157.exe
PID 2876 wrote to memory of 2080	2876	explorku.exe	296646b157.exe
PID 2876 wrote to memory of 2080	2876	explorku.exe	296646b157.exe

C:\Users\Admin\AppData\Local\Temp\7e89d67f17a156a6a7ca9c926cb56d17e81558470d8eb5cad2c11b8337fbc7d9.exe
"C:\Users\Admin\AppData\Local\Temp\7e89d67f17a156a6a7ca9c926cb56d17e81558470d8eb5cad2c11b8337fbc7d9.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks computer location settings
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1284

C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe
"C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe"
2⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks computer location settings
- Executes dropped EXE
- Adds Run key to start application
- Checks whether UAC is enabled
- Suspicious use of WriteProcessMemory
PID:2876

C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe
"C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe"
3⤵
PID:4344

C:\Users\Admin\AppData\Local\Temp\1000005001\amers.exe
"C:\Users\Admin\AppData\Local\Temp\1000005001\amers.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:3012

C:\Users\Admin\AppData\Local\Temp\7af68cdb52\axplons.exe
"C:\Users\Admin\AppData\Local\Temp\7af68cdb52\axplons.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:464

C:\Users\Admin\1000006002\296646b157.exe
"C:\Users\Admin\1000006002\296646b157.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:2080

C:\Users\Admin\AppData\Local\Temp\7af68cdb52\axplons.exe
C:\Users\Admin\AppData\Local\Temp\7af68cdb52\axplons.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:1900

C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe
C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Checks whether UAC is enabled
PID:3204

C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe
C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Checks whether UAC is enabled
PID:3296

C:\Users\Admin\AppData\Local\Temp\7af68cdb52\axplons.exe
C:\Users\Admin\AppData\Local\Temp\7af68cdb52\axplons.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:1120

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

System Information Discovery

4