amadey | 1ae43bc614bb941f68c82c0cffb5e41a92052d15ad6b5a5e0be8feffb19bc1b6

Virtualization/Sandbox Evasion

Processes:

axplons.exeexplorku.exe1ae43bc614bb941f68c82c0cffb5e41a92052d15ad6b5a5e0be8feffb19bc1b6.exeaxplons.exeexplorku.exef5a10e527a.exeexplorku.exeamers.exeaxplons.exe

description	ioc	process
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__	1ae43bc614bb941f68c82c0cffb5e41a92052d15ad6b5a5e0be8feffb19bc1b6.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__	f5a10e527a.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

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:

amers.exeaxplons.exeaxplons.exe1ae43bc614bb941f68c82c0cffb5e41a92052d15ad6b5a5e0be8feffb19bc1b6.exeaxplons.exeexplorku.exeexplorku.exef5a10e527a.exeexplorku.exe

description	ioc	process
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	axplons.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	1ae43bc614bb941f68c82c0cffb5e41a92052d15ad6b5a5e0be8feffb19bc1b6.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	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	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	f5a10e527a.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	f5a10e527a.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	axplons.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorku.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	1ae43bc614bb941f68c82c0cffb5e41a92052d15ad6b5a5e0be8feffb19bc1b6.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	amers.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	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:

explorku.exeamers.exe1ae43bc614bb941f68c82c0cffb5e41a92052d15ad6b5a5e0be8feffb19bc1b6.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation	explorku.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation	amers.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation	1ae43bc614bb941f68c82c0cffb5e41a92052d15ad6b5a5e0be8feffb19bc1b6.exe

Executes dropped EXE 8 IoCs

Processes:

explorku.exeamers.exeaxplons.exef5a10e527a.exeaxplons.exeexplorku.exeaxplons.exeexplorku.exe

pid process

528 explorku.exe
2024 amers.exe
3256 axplons.exe
3836 f5a10e527a.exe
1124 axplons.exe
2656 explorku.exe
5028 axplons.exe
2516 explorku.exe

pid	process
528	explorku.exe
2024	amers.exe
3256	axplons.exe
3836	f5a10e527a.exe
1124	axplons.exe
2656	explorku.exe
5028	axplons.exe
2516	explorku.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:

axplons.exeamers.exeaxplons.exeaxplons.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Software\Wine	axplons.exe
Key opened	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Software\Wine	amers.exe
Key opened	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Software\Wine	axplons.exe
Key opened	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Software\Wine	axplons.exe

Themida packer 46 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/1876-5-0x0000000000230000-0x0000000000715000-memory.dmp	themida
behavioral1/memory/1876-1-0x0000000000230000-0x0000000000715000-memory.dmp	themida
behavioral1/memory/1876-4-0x0000000000230000-0x0000000000715000-memory.dmp	themida
behavioral1/memory/1876-7-0x0000000000230000-0x0000000000715000-memory.dmp	themida
behavioral1/memory/1876-6-0x0000000000230000-0x0000000000715000-memory.dmp	themida
behavioral1/memory/1876-3-0x0000000000230000-0x0000000000715000-memory.dmp	themida
behavioral1/memory/1876-2-0x0000000000230000-0x0000000000715000-memory.dmp	themida
behavioral1/memory/1876-0-0x0000000000230000-0x0000000000715000-memory.dmp	themida
behavioral1/memory/1876-8-0x0000000000230000-0x0000000000715000-memory.dmp	themida
C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe	themida
behavioral1/memory/1876-21-0x0000000000230000-0x0000000000715000-memory.dmp	themida
behavioral1/memory/528-28-0x0000000000A50000-0x0000000000F35000-memory.dmp	themida
behavioral1/memory/528-30-0x0000000000A50000-0x0000000000F35000-memory.dmp	themida
behavioral1/memory/528-29-0x0000000000A50000-0x0000000000F35000-memory.dmp	themida
behavioral1/memory/528-25-0x0000000000A50000-0x0000000000F35000-memory.dmp	themida
behavioral1/memory/528-24-0x0000000000A50000-0x0000000000F35000-memory.dmp	themida
behavioral1/memory/528-23-0x0000000000A50000-0x0000000000F35000-memory.dmp	themida
behavioral1/memory/528-27-0x0000000000A50000-0x0000000000F35000-memory.dmp	themida
behavioral1/memory/528-26-0x0000000000A50000-0x0000000000F35000-memory.dmp	themida
behavioral1/memory/528-22-0x0000000000A50000-0x0000000000F35000-memory.dmp	themida
C:\Users\Admin\AppData\Local\Temp\1000014001\f5a10e527a.exe	themida
behavioral1/memory/3836-83-0x0000000000D50000-0x00000000013E7000-memory.dmp	themida
behavioral1/memory/3836-86-0x0000000000D50000-0x00000000013E7000-memory.dmp	themida
behavioral1/memory/3836-85-0x0000000000D50000-0x00000000013E7000-memory.dmp	themida
behavioral1/memory/3836-87-0x0000000000D50000-0x00000000013E7000-memory.dmp	themida
behavioral1/memory/3836-84-0x0000000000D50000-0x00000000013E7000-memory.dmp	themida
behavioral1/memory/3836-88-0x0000000000D50000-0x00000000013E7000-memory.dmp	themida
behavioral1/memory/3836-90-0x0000000000D50000-0x00000000013E7000-memory.dmp	themida
behavioral1/memory/3836-91-0x0000000000D50000-0x00000000013E7000-memory.dmp	themida
behavioral1/memory/3836-89-0x0000000000D50000-0x00000000013E7000-memory.dmp	themida
behavioral1/memory/528-92-0x0000000000A50000-0x0000000000F35000-memory.dmp	themida
behavioral1/memory/3836-95-0x0000000000D50000-0x00000000013E7000-memory.dmp	themida
behavioral1/memory/2656-102-0x0000000000A50000-0x0000000000F35000-memory.dmp	themida
behavioral1/memory/2656-101-0x0000000000A50000-0x0000000000F35000-memory.dmp	themida
behavioral1/memory/2656-109-0x0000000000A50000-0x0000000000F35000-memory.dmp	themida
behavioral1/memory/2656-108-0x0000000000A50000-0x0000000000F35000-memory.dmp	themida
behavioral1/memory/2656-107-0x0000000000A50000-0x0000000000F35000-memory.dmp	themida
behavioral1/memory/2656-106-0x0000000000A50000-0x0000000000F35000-memory.dmp	themida
behavioral1/memory/2656-105-0x0000000000A50000-0x0000000000F35000-memory.dmp	themida
behavioral1/memory/2656-111-0x0000000000A50000-0x0000000000F35000-memory.dmp	themida
behavioral1/memory/2516-138-0x0000000000A50000-0x0000000000F35000-memory.dmp	themida
behavioral1/memory/2516-141-0x0000000000A50000-0x0000000000F35000-memory.dmp	themida
behavioral1/memory/2516-135-0x0000000000A50000-0x0000000000F35000-memory.dmp	themida
behavioral1/memory/2516-134-0x0000000000A50000-0x0000000000F35000-memory.dmp	themida
behavioral1/memory/2516-133-0x0000000000A50000-0x0000000000F35000-memory.dmp	themida
behavioral1/memory/2516-143-0x0000000000A50000-0x0000000000F35000-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-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\f5a10e527a.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1000014001\\f5a10e527a.exe"	explorku.exe

Checks whether UAC is enabled 1 TTPs 5 IoCs

evasion trojan

System Information Discovery

Processes:

explorku.exe1ae43bc614bb941f68c82c0cffb5e41a92052d15ad6b5a5e0be8feffb19bc1b6.exeexplorku.exef5a10e527a.exeexplorku.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	1ae43bc614bb941f68c82c0cffb5e41a92052d15ad6b5a5e0be8feffb19bc1b6.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	f5a10e527a.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	explorku.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

Processes:

amers.exeaxplons.exeaxplons.exeaxplons.exe

pid process

2024 amers.exe
3256 axplons.exe
1124 axplons.exe
5028 axplons.exe

pid	process
2024	amers.exe
3256	axplons.exe
1124	axplons.exe
5028	axplons.exe

Drops file in Windows directory 2 IoCs

Processes:

1ae43bc614bb941f68c82c0cffb5e41a92052d15ad6b5a5e0be8feffb19bc1b6.exeamers.exe

description	ioc	process
File created	C:\Windows\Tasks\explorku.job	1ae43bc614bb941f68c82c0cffb5e41a92052d15ad6b5a5e0be8feffb19bc1b6.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

2024 amers.exe
2024 amers.exe
3256 axplons.exe
3256 axplons.exe
1124 axplons.exe
1124 axplons.exe
5028 axplons.exe
5028 axplons.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

amers.exe

pid process

2024 amers.exe

pid	process
2024	amers.exe
2024	amers.exe
3256	axplons.exe
3256	axplons.exe
1124	axplons.exe
1124	axplons.exe
5028	axplons.exe
5028	axplons.exe

pid	process
2024	amers.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

1ae43bc614bb941f68c82c0cffb5e41a92052d15ad6b5a5e0be8feffb19bc1b6.exeexplorku.exeamers.exe

description	pid	process	target process
PID 1876 wrote to memory of 528	1876	1ae43bc614bb941f68c82c0cffb5e41a92052d15ad6b5a5e0be8feffb19bc1b6.exe	explorku.exe
PID 1876 wrote to memory of 528	1876	1ae43bc614bb941f68c82c0cffb5e41a92052d15ad6b5a5e0be8feffb19bc1b6.exe	explorku.exe
PID 1876 wrote to memory of 528	1876	1ae43bc614bb941f68c82c0cffb5e41a92052d15ad6b5a5e0be8feffb19bc1b6.exe	explorku.exe
PID 528 wrote to memory of 2236	528	explorku.exe	explorku.exe
PID 528 wrote to memory of 2236	528	explorku.exe	explorku.exe
PID 528 wrote to memory of 2236	528	explorku.exe	explorku.exe
PID 528 wrote to memory of 2024	528	explorku.exe	amers.exe
PID 528 wrote to memory of 2024	528	explorku.exe	amers.exe
PID 528 wrote to memory of 2024	528	explorku.exe	amers.exe
PID 2024 wrote to memory of 3256	2024	amers.exe	axplons.exe
PID 2024 wrote to memory of 3256	2024	amers.exe	axplons.exe
PID 2024 wrote to memory of 3256	2024	amers.exe	axplons.exe
PID 528 wrote to memory of 3836	528	explorku.exe	f5a10e527a.exe
PID 528 wrote to memory of 3836	528	explorku.exe	f5a10e527a.exe
PID 528 wrote to memory of 3836	528	explorku.exe	f5a10e527a.exe

C:\Users\Admin\AppData\Local\Temp\1ae43bc614bb941f68c82c0cffb5e41a92052d15ad6b5a5e0be8feffb19bc1b6.exe
"C:\Users\Admin\AppData\Local\Temp\1ae43bc614bb941f68c82c0cffb5e41a92052d15ad6b5a5e0be8feffb19bc1b6.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:1876

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:528

C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe
"C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe"
3⤵
PID:2236

C:\Users\Admin\AppData\Local\Temp\1000013001\amers.exe
"C:\Users\Admin\AppData\Local\Temp\1000013001\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:2024

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:3256

C:\Users\Admin\AppData\Local\Temp\1000014001\f5a10e527a.exe
"C:\Users\Admin\AppData\Local\Temp\1000014001\f5a10e527a.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:3836

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:2656

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:1124

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:5028

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:2516

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