amadey | 9f6dc1c659a2431571e5c5a44d19c3f8bf08fe894193cf6f7f2e9c56993a59da

Virtualization/Sandbox Evasion

Processes:

axplont.exeexplortu.exeaxplont.exeexplortu.exe9f6dc1c659a2431571e5c5a44d19c3f8bf08fe894193cf6f7f2e9c56993a59da.exeexplortu.exed1ccf16367.exeaxplont.exe50b3cc98bb.exe

description	ioc	process
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__	9f6dc1c659a2431571e5c5a44d19c3f8bf08fe894193cf6f7f2e9c56993a59da.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explortu.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	d1ccf16367.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	axplont.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	50b3cc98bb.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:

50b3cc98bb.exeexplortu.exeexplortu.exeaxplont.exeaxplont.exe9f6dc1c659a2431571e5c5a44d19c3f8bf08fe894193cf6f7f2e9c56993a59da.exeexplortu.exed1ccf16367.exeaxplont.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	50b3cc98bb.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	axplont.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	50b3cc98bb.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explortu.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\SystemBiosVersion	9f6dc1c659a2431571e5c5a44d19c3f8bf08fe894193cf6f7f2e9c56993a59da.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explortu.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	axplont.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	9f6dc1c659a2431571e5c5a44d19c3f8bf08fe894193cf6f7f2e9c56993a59da.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explortu.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	d1ccf16367.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explortu.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	d1ccf16367.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	axplont.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	axplont.exe

Executes dropped EXE 8 IoCs

Processes:

explortu.exed1ccf16367.exeaxplont.exe50b3cc98bb.exeaxplont.exeexplortu.exeaxplont.exeexplortu.exe

pid process

956 explortu.exe
720 d1ccf16367.exe
4800 axplont.exe
684 50b3cc98bb.exe
1576 axplont.exe
4104 explortu.exe
3388 axplont.exe
1964 explortu.exe

pid	process
956	explortu.exe
720	d1ccf16367.exe
4800	axplont.exe
684	50b3cc98bb.exe
1576	axplont.exe
4104	explortu.exe
3388	axplont.exe
1964	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:

explortu.exe9f6dc1c659a2431571e5c5a44d19c3f8bf08fe894193cf6f7f2e9c56993a59da.exeexplortu.exed1ccf16367.exeaxplont.exeaxplont.exeexplortu.exeaxplont.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3107365284-1576850094-161165143-1000\Software\Wine	explortu.exe
Key opened	\REGISTRY\USER\S-1-5-21-3107365284-1576850094-161165143-1000\Software\Wine	9f6dc1c659a2431571e5c5a44d19c3f8bf08fe894193cf6f7f2e9c56993a59da.exe
Key opened	\REGISTRY\USER\S-1-5-21-3107365284-1576850094-161165143-1000\Software\Wine	explortu.exe
Key opened	\REGISTRY\USER\S-1-5-21-3107365284-1576850094-161165143-1000\Software\Wine	d1ccf16367.exe
Key opened	\REGISTRY\USER\S-1-5-21-3107365284-1576850094-161165143-1000\Software\Wine	axplont.exe
Key opened	\REGISTRY\USER\S-1-5-21-3107365284-1576850094-161165143-1000\Software\Wine	axplont.exe
Key opened	\REGISTRY\USER\S-1-5-21-3107365284-1576850094-161165143-1000\Software\Wine	explortu.exe
Key opened	\REGISTRY\USER\S-1-5-21-3107365284-1576850094-161165143-1000\Software\Wine	axplont.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\50b3cc98bb.exe	themida
behavioral2/memory/684-73-0x00000000001A0000-0x0000000000835000-memory.dmp	themida
behavioral2/memory/684-75-0x00000000001A0000-0x0000000000835000-memory.dmp	themida
behavioral2/memory/684-76-0x00000000001A0000-0x0000000000835000-memory.dmp	themida
behavioral2/memory/684-74-0x00000000001A0000-0x0000000000835000-memory.dmp	themida
behavioral2/memory/684-77-0x00000000001A0000-0x0000000000835000-memory.dmp	themida
behavioral2/memory/684-78-0x00000000001A0000-0x0000000000835000-memory.dmp	themida
behavioral2/memory/684-79-0x00000000001A0000-0x0000000000835000-memory.dmp	themida
behavioral2/memory/684-80-0x00000000001A0000-0x0000000000835000-memory.dmp	themida
behavioral2/memory/684-83-0x00000000001A0000-0x0000000000835000-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-1-5-21-3107365284-1576850094-161165143-1000\Software\Microsoft\Windows\CurrentVersion\Run\50b3cc98bb.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1000005001\\50b3cc98bb.exe"	explortu.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

50b3cc98bb.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 50b3cc98bb.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	50b3cc98bb.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 8 IoCs

Processes:

9f6dc1c659a2431571e5c5a44d19c3f8bf08fe894193cf6f7f2e9c56993a59da.exeexplortu.exed1ccf16367.exeaxplont.exeaxplont.exeexplortu.exeaxplont.exeexplortu.exe

pid	process
436	9f6dc1c659a2431571e5c5a44d19c3f8bf08fe894193cf6f7f2e9c56993a59da.exe
956	explortu.exe
720	d1ccf16367.exe
4800	axplont.exe
1576	axplont.exe
4104	explortu.exe
3388	axplont.exe
1964	explortu.exe

Drops file in Windows directory 2 IoCs

Processes:

d1ccf16367.exe9f6dc1c659a2431571e5c5a44d19c3f8bf08fe894193cf6f7f2e9c56993a59da.exe

description	ioc	process
File created	C:\Windows\Tasks\axplont.job	d1ccf16367.exe
File created	C:\Windows\Tasks\explortu.job	9f6dc1c659a2431571e5c5a44d19c3f8bf08fe894193cf6f7f2e9c56993a59da.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:

9f6dc1c659a2431571e5c5a44d19c3f8bf08fe894193cf6f7f2e9c56993a59da.exeexplortu.exed1ccf16367.exeaxplont.exeaxplont.exeexplortu.exeaxplont.exeexplortu.exe

pid	process
436	9f6dc1c659a2431571e5c5a44d19c3f8bf08fe894193cf6f7f2e9c56993a59da.exe
436	9f6dc1c659a2431571e5c5a44d19c3f8bf08fe894193cf6f7f2e9c56993a59da.exe
956	explortu.exe
956	explortu.exe
720	d1ccf16367.exe
720	d1ccf16367.exe
4800	axplont.exe
4800	axplont.exe
1576	axplont.exe
1576	axplont.exe
4104	explortu.exe
4104	explortu.exe
3388	axplont.exe
3388	axplont.exe
1964	explortu.exe
1964	explortu.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

9f6dc1c659a2431571e5c5a44d19c3f8bf08fe894193cf6f7f2e9c56993a59da.exeexplortu.exed1ccf16367.exe

description	pid	process	target process
PID 436 wrote to memory of 956	436	9f6dc1c659a2431571e5c5a44d19c3f8bf08fe894193cf6f7f2e9c56993a59da.exe	explortu.exe
PID 436 wrote to memory of 956	436	9f6dc1c659a2431571e5c5a44d19c3f8bf08fe894193cf6f7f2e9c56993a59da.exe	explortu.exe
PID 436 wrote to memory of 956	436	9f6dc1c659a2431571e5c5a44d19c3f8bf08fe894193cf6f7f2e9c56993a59da.exe	explortu.exe
PID 956 wrote to memory of 2796	956	explortu.exe	explortu.exe
PID 956 wrote to memory of 2796	956	explortu.exe	explortu.exe
PID 956 wrote to memory of 2796	956	explortu.exe	explortu.exe
PID 956 wrote to memory of 720	956	explortu.exe	d1ccf16367.exe
PID 956 wrote to memory of 720	956	explortu.exe	d1ccf16367.exe
PID 956 wrote to memory of 720	956	explortu.exe	d1ccf16367.exe
PID 720 wrote to memory of 4800	720	d1ccf16367.exe	axplont.exe
PID 720 wrote to memory of 4800	720	d1ccf16367.exe	axplont.exe
PID 720 wrote to memory of 4800	720	d1ccf16367.exe	axplont.exe
PID 956 wrote to memory of 684	956	explortu.exe	50b3cc98bb.exe
PID 956 wrote to memory of 684	956	explortu.exe	50b3cc98bb.exe
PID 956 wrote to memory of 684	956	explortu.exe	50b3cc98bb.exe

C:\Users\Admin\AppData\Local\Temp\9f6dc1c659a2431571e5c5a44d19c3f8bf08fe894193cf6f7f2e9c56993a59da.exe
"C:\Users\Admin\AppData\Local\Temp\9f6dc1c659a2431571e5c5a44d19c3f8bf08fe894193cf6f7f2e9c56993a59da.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 WriteProcessMemory
PID:436

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
- 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:956

C:\Users\Admin\AppData\Local\Temp\9217037dc9\explortu.exe
"C:\Users\Admin\AppData\Local\Temp\9217037dc9\explortu.exe"
3⤵
PID:2796

C:\Users\Admin\1000004002\d1ccf16367.exe
"C:\Users\Admin\1000004002\d1ccf16367.exe"
3⤵
- 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
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:720

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:4800

C:\Users\Admin\AppData\Local\Temp\1000005001\50b3cc98bb.exe
"C:\Users\Admin\AppData\Local\Temp\1000005001\50b3cc98bb.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:684

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:1576

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:4104

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:3388

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:1964

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

3

Virtualization/Sandbox Evasion

2