amadey | 3e0702382cb311823cf2fd916f686f8b5f95e167037c1fba10b3a3ed21688b9a

Virtualization/Sandbox Evasion

Processes:

amers.exe4b21198097.exeexplorku.exeaxplons.exe3e0702382cb311823cf2fd916f686f8b5f95e167037c1fba10b3a3ed21688b9a.exeexplorku.exeaxplons.exeaxplons.exeexplorku.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	amers.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	4b21198097.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__	3e0702382cb311823cf2fd916f686f8b5f95e167037c1fba10b3a3ed21688b9a.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__	axplons.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explorku.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:

explorku.exeamers.exeaxplons.exeexplorku.exeaxplons.exe3e0702382cb311823cf2fd916f686f8b5f95e167037c1fba10b3a3ed21688b9a.exeaxplons.exe4b21198097.exeexplorku.exe

description	ioc	process
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\SystemBiosVersion	amers.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\VideoBiosVersion	axplons.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	3e0702382cb311823cf2fd916f686f8b5f95e167037c1fba10b3a3ed21688b9a.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	amers.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	axplons.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	4b21198097.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	4b21198097.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	3e0702382cb311823cf2fd916f686f8b5f95e167037c1fba10b3a3ed21688b9a.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	axplons.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	axplons.exe

Executes dropped EXE 8 IoCs

Processes:

explorku.exeamers.exeaxplons.exe4b21198097.exeaxplons.exeexplorku.exeaxplons.exeexplorku.exe

pid process

5000 explorku.exe
2652 amers.exe
3716 axplons.exe
3316 4b21198097.exe
4776 axplons.exe
4232 explorku.exe
2424 axplons.exe
2644 explorku.exe

pid	process
5000	explorku.exe
2652	amers.exe
3716	axplons.exe
3316	4b21198097.exe
4776	axplons.exe
4232	explorku.exe
2424	axplons.exe
2644	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.exeaxplons.exeaxplons.exeamers.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\Software\Wine	axplons.exe
Key opened	\REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\Software\Wine	axplons.exe
Key opened	\REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\Software\Wine	axplons.exe
Key opened	\REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\Software\Wine	amers.exe

Themida packer 44 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral2/memory/4300-0-0x0000000000310000-0x000000000085B000-memory.dmp	themida
behavioral2/memory/4300-3-0x0000000000310000-0x000000000085B000-memory.dmp	themida
behavioral2/memory/4300-2-0x0000000000310000-0x000000000085B000-memory.dmp	themida
behavioral2/memory/4300-1-0x0000000000310000-0x000000000085B000-memory.dmp	themida
behavioral2/memory/4300-4-0x0000000000310000-0x000000000085B000-memory.dmp	themida
behavioral2/memory/4300-7-0x0000000000310000-0x000000000085B000-memory.dmp	themida
behavioral2/memory/4300-8-0x0000000000310000-0x000000000085B000-memory.dmp	themida
behavioral2/memory/4300-5-0x0000000000310000-0x000000000085B000-memory.dmp	themida
behavioral2/memory/4300-6-0x0000000000310000-0x000000000085B000-memory.dmp	themida
C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe	themida
behavioral2/memory/5000-22-0x0000000000030000-0x000000000057B000-memory.dmp	themida
behavioral2/memory/5000-23-0x0000000000030000-0x000000000057B000-memory.dmp	themida
behavioral2/memory/5000-28-0x0000000000030000-0x000000000057B000-memory.dmp	themida
behavioral2/memory/5000-30-0x0000000000030000-0x000000000057B000-memory.dmp	themida
behavioral2/memory/5000-27-0x0000000000030000-0x000000000057B000-memory.dmp	themida
behavioral2/memory/5000-25-0x0000000000030000-0x000000000057B000-memory.dmp	themida
behavioral2/memory/5000-26-0x0000000000030000-0x000000000057B000-memory.dmp	themida
behavioral2/memory/5000-24-0x0000000000030000-0x000000000057B000-memory.dmp	themida
behavioral2/memory/4300-21-0x0000000000310000-0x000000000085B000-memory.dmp	themida
behavioral2/memory/5000-29-0x0000000000030000-0x000000000057B000-memory.dmp	themida
C:\Users\Admin\AppData\Local\Temp\1000014001\4b21198097.exe	themida
behavioral2/memory/3316-83-0x0000000000B00000-0x0000000001194000-memory.dmp	themida
behavioral2/memory/3316-84-0x0000000000B00000-0x0000000001194000-memory.dmp	themida
behavioral2/memory/5000-81-0x0000000000030000-0x000000000057B000-memory.dmp	themida
behavioral2/memory/3316-87-0x0000000000B00000-0x0000000001194000-memory.dmp	themida
behavioral2/memory/3316-86-0x0000000000B00000-0x0000000001194000-memory.dmp	themida
behavioral2/memory/3316-85-0x0000000000B00000-0x0000000001194000-memory.dmp	themida
behavioral2/memory/3316-88-0x0000000000B00000-0x0000000001194000-memory.dmp	themida
behavioral2/memory/3316-90-0x0000000000B00000-0x0000000001194000-memory.dmp	themida
behavioral2/memory/3316-89-0x0000000000B00000-0x0000000001194000-memory.dmp	themida
behavioral2/memory/3316-91-0x0000000000B00000-0x0000000001194000-memory.dmp	themida
behavioral2/memory/3316-94-0x0000000000B00000-0x0000000001194000-memory.dmp	themida
behavioral2/memory/4232-104-0x0000000000030000-0x000000000057B000-memory.dmp	themida
behavioral2/memory/4232-108-0x0000000000030000-0x000000000057B000-memory.dmp	themida
behavioral2/memory/4232-110-0x0000000000030000-0x000000000057B000-memory.dmp	themida
behavioral2/memory/4232-109-0x0000000000030000-0x000000000057B000-memory.dmp	themida
behavioral2/memory/4232-107-0x0000000000030000-0x000000000057B000-memory.dmp	themida
behavioral2/memory/4232-105-0x0000000000030000-0x000000000057B000-memory.dmp	themida
behavioral2/memory/4232-106-0x0000000000030000-0x000000000057B000-memory.dmp	themida
behavioral2/memory/4232-111-0x0000000000030000-0x000000000057B000-memory.dmp	themida
behavioral2/memory/4232-112-0x0000000000030000-0x000000000057B000-memory.dmp	themida
behavioral2/memory/2644-135-0x0000000000030000-0x000000000057B000-memory.dmp	themida
behavioral2/memory/2644-136-0x0000000000030000-0x000000000057B000-memory.dmp	themida
behavioral2/memory/2644-144-0x0000000000030000-0x000000000057B000-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-1-5-21-1474490143-3221292397-4168103503-1000\Software\Microsoft\Windows\CurrentVersion\Run\4b21198097.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1000014001\\4b21198097.exe"	explorku.exe

Checks whether UAC is enabled 1 TTPs 5 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

3e0702382cb311823cf2fd916f686f8b5f95e167037c1fba10b3a3ed21688b9a.exeexplorku.exe4b21198097.exeexplorku.exeexplorku.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	3e0702382cb311823cf2fd916f686f8b5f95e167037c1fba10b3a3ed21688b9a.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	4b21198097.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

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

Processes:

amers.exeaxplons.exeaxplons.exeaxplons.exe

pid process

2652 amers.exe
3716 axplons.exe
4776 axplons.exe
2424 axplons.exe

pid	process
2652	amers.exe
3716	axplons.exe
4776	axplons.exe
2424	axplons.exe

Drops file in Windows directory 2 IoCs

Processes:

3e0702382cb311823cf2fd916f686f8b5f95e167037c1fba10b3a3ed21688b9a.exeamers.exe

description	ioc	process
File created	C:\Windows\Tasks\explorku.job	3e0702382cb311823cf2fd916f686f8b5f95e167037c1fba10b3a3ed21688b9a.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

2652 amers.exe
2652 amers.exe
3716 axplons.exe
3716 axplons.exe
4776 axplons.exe
4776 axplons.exe
2424 axplons.exe
2424 axplons.exe

pid	process
2652	amers.exe
2652	amers.exe
3716	axplons.exe
3716	axplons.exe
4776	axplons.exe
4776	axplons.exe
2424	axplons.exe
2424	axplons.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

3e0702382cb311823cf2fd916f686f8b5f95e167037c1fba10b3a3ed21688b9a.exeexplorku.exeamers.exe

description	pid	process	target process
PID 4300 wrote to memory of 5000	4300	3e0702382cb311823cf2fd916f686f8b5f95e167037c1fba10b3a3ed21688b9a.exe	explorku.exe
PID 4300 wrote to memory of 5000	4300	3e0702382cb311823cf2fd916f686f8b5f95e167037c1fba10b3a3ed21688b9a.exe	explorku.exe
PID 4300 wrote to memory of 5000	4300	3e0702382cb311823cf2fd916f686f8b5f95e167037c1fba10b3a3ed21688b9a.exe	explorku.exe
PID 5000 wrote to memory of 3588	5000	explorku.exe	explorku.exe
PID 5000 wrote to memory of 3588	5000	explorku.exe	explorku.exe
PID 5000 wrote to memory of 3588	5000	explorku.exe	explorku.exe
PID 5000 wrote to memory of 2652	5000	explorku.exe	amers.exe
PID 5000 wrote to memory of 2652	5000	explorku.exe	amers.exe
PID 5000 wrote to memory of 2652	5000	explorku.exe	amers.exe
PID 2652 wrote to memory of 3716	2652	amers.exe	axplons.exe
PID 2652 wrote to memory of 3716	2652	amers.exe	axplons.exe
PID 2652 wrote to memory of 3716	2652	amers.exe	axplons.exe
PID 5000 wrote to memory of 3316	5000	explorku.exe	4b21198097.exe
PID 5000 wrote to memory of 3316	5000	explorku.exe	4b21198097.exe
PID 5000 wrote to memory of 3316	5000	explorku.exe	4b21198097.exe

C:\Users\Admin\AppData\Local\Temp\3e0702382cb311823cf2fd916f686f8b5f95e167037c1fba10b3a3ed21688b9a.exe
"C:\Users\Admin\AppData\Local\Temp\3e0702382cb311823cf2fd916f686f8b5f95e167037c1fba10b3a3ed21688b9a.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:4300

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
- Executes dropped EXE
- Adds Run key to start application
- Checks whether UAC is enabled
- Suspicious use of WriteProcessMemory
PID:5000

C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe
"C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe"
3⤵
PID:3588

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
- 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:2652

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:3716

C:\Users\Admin\AppData\Local\Temp\1000014001\4b21198097.exe
"C:\Users\Admin\AppData\Local\Temp\1000014001\4b21198097.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:3316

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:4776

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:4232

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:2424

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:2644

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

Modify Registry

T1112

Virtualization/Sandbox Evasion

2

Credential Access

Discovery

Query Registry

3

System Information Discovery

3

T1082

Virtualization/Sandbox Evasion

2