amadey | 91c6a3d9a458e15c67237718bc4c74cf7d8a38ac828b9ad010f2d1b0a25a36a7

Virtualization/Sandbox Evasion

Processes:

ffaf44f106.exe04a0271d3c.exeaxplont.exeaxplont.exeexplortu.exe91c6a3d9a458e15c67237718bc4c74cf7d8a38ac828b9ad010f2d1b0a25a36a7.exeexplortu.exeaxplont.exeexplortu.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	ffaf44f106.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	04a0271d3c.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	axplont.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__	91c6a3d9a458e15c67237718bc4c74cf7d8a38ac828b9ad010f2d1b0a25a36a7.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

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:

axplont.exe04a0271d3c.exeaxplont.exeexplortu.exeaxplont.exeexplortu.exe91c6a3d9a458e15c67237718bc4c74cf7d8a38ac828b9ad010f2d1b0a25a36a7.exeffaf44f106.exeexplortu.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	axplont.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	04a0271d3c.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	04a0271d3c.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	axplont.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	explortu.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	91c6a3d9a458e15c67237718bc4c74cf7d8a38ac828b9ad010f2d1b0a25a36a7.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	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\SystemBiosVersion	ffaf44f106.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	axplont.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explortu.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
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explortu.exe

Executes dropped EXE 8 IoCs

Processes:

explortu.exeffaf44f106.exeaxplont.exe04a0271d3c.exeaxplont.exeexplortu.exeaxplont.exeexplortu.exe

pid process

1440 explortu.exe
3680 ffaf44f106.exe
2220 axplont.exe
2536 04a0271d3c.exe
3484 axplont.exe
4040 explortu.exe
3192 axplont.exe
1432 explortu.exe

pid	process
1440	explortu.exe
3680	ffaf44f106.exe
2220	axplont.exe
2536	04a0271d3c.exe
3484	axplont.exe
4040	explortu.exe
3192	axplont.exe
1432	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:

ffaf44f106.exeaxplont.exeaxplont.exeexplortu.exeaxplont.exeexplortu.exe91c6a3d9a458e15c67237718bc4c74cf7d8a38ac828b9ad010f2d1b0a25a36a7.exeexplortu.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3433428765-2473475212-4279855560-1000\Software\Wine	ffaf44f106.exe
Key opened	\REGISTRY\USER\S-1-5-21-3433428765-2473475212-4279855560-1000\Software\Wine	axplont.exe
Key opened	\REGISTRY\USER\S-1-5-21-3433428765-2473475212-4279855560-1000\Software\Wine	axplont.exe
Key opened	\REGISTRY\USER\S-1-5-21-3433428765-2473475212-4279855560-1000\Software\Wine	explortu.exe
Key opened	\REGISTRY\USER\S-1-5-21-3433428765-2473475212-4279855560-1000\Software\Wine	axplont.exe
Key opened	\REGISTRY\USER\S-1-5-21-3433428765-2473475212-4279855560-1000\Software\Wine	explortu.exe
Key opened	\REGISTRY\USER\S-1-5-21-3433428765-2473475212-4279855560-1000\Software\Wine	91c6a3d9a458e15c67237718bc4c74cf7d8a38ac828b9ad010f2d1b0a25a36a7.exe
Key opened	\REGISTRY\USER\S-1-5-21-3433428765-2473475212-4279855560-1000\Software\Wine	explortu.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\04a0271d3c.exe	themida
behavioral2/memory/2536-73-0x0000000000C30000-0x00000000012A4000-memory.dmp	themida
behavioral2/memory/2536-74-0x0000000000C30000-0x00000000012A4000-memory.dmp	themida
behavioral2/memory/2536-76-0x0000000000C30000-0x00000000012A4000-memory.dmp	themida
behavioral2/memory/2536-75-0x0000000000C30000-0x00000000012A4000-memory.dmp	themida
behavioral2/memory/2536-78-0x0000000000C30000-0x00000000012A4000-memory.dmp	themida
behavioral2/memory/2536-79-0x0000000000C30000-0x00000000012A4000-memory.dmp	themida
behavioral2/memory/2536-80-0x0000000000C30000-0x00000000012A4000-memory.dmp	themida
behavioral2/memory/2536-77-0x0000000000C30000-0x00000000012A4000-memory.dmp	themida
behavioral2/memory/2536-85-0x0000000000C30000-0x00000000012A4000-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-1-5-21-3433428765-2473475212-4279855560-1000\Software\Microsoft\Windows\CurrentVersion\Run\04a0271d3c.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1000005001\\04a0271d3c.exe"	explortu.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

04a0271d3c.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 04a0271d3c.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	04a0271d3c.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 8 IoCs

Processes:

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

pid	process
3616	91c6a3d9a458e15c67237718bc4c74cf7d8a38ac828b9ad010f2d1b0a25a36a7.exe
1440	explortu.exe
3680	ffaf44f106.exe
2220	axplont.exe
3484	axplont.exe
4040	explortu.exe
3192	axplont.exe
1432	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.exeaxplont.exeexplortu.exe

pid	process
3616	91c6a3d9a458e15c67237718bc4c74cf7d8a38ac828b9ad010f2d1b0a25a36a7.exe
3616	91c6a3d9a458e15c67237718bc4c74cf7d8a38ac828b9ad010f2d1b0a25a36a7.exe
1440	explortu.exe
1440	explortu.exe
3680	ffaf44f106.exe
3680	ffaf44f106.exe
2220	axplont.exe
2220	axplont.exe
3484	axplont.exe
3484	axplont.exe
4040	explortu.exe
4040	explortu.exe
3192	axplont.exe
3192	axplont.exe
1432	explortu.exe
1432	explortu.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

91c6a3d9a458e15c67237718bc4c74cf7d8a38ac828b9ad010f2d1b0a25a36a7.exeexplortu.exeffaf44f106.exe

description	pid	process	target process
PID 3616 wrote to memory of 1440	3616	91c6a3d9a458e15c67237718bc4c74cf7d8a38ac828b9ad010f2d1b0a25a36a7.exe	explortu.exe
PID 3616 wrote to memory of 1440	3616	91c6a3d9a458e15c67237718bc4c74cf7d8a38ac828b9ad010f2d1b0a25a36a7.exe	explortu.exe
PID 3616 wrote to memory of 1440	3616	91c6a3d9a458e15c67237718bc4c74cf7d8a38ac828b9ad010f2d1b0a25a36a7.exe	explortu.exe
PID 1440 wrote to memory of 5044	1440	explortu.exe	explortu.exe
PID 1440 wrote to memory of 5044	1440	explortu.exe	explortu.exe
PID 1440 wrote to memory of 5044	1440	explortu.exe	explortu.exe
PID 1440 wrote to memory of 3680	1440	explortu.exe	ffaf44f106.exe
PID 1440 wrote to memory of 3680	1440	explortu.exe	ffaf44f106.exe
PID 1440 wrote to memory of 3680	1440	explortu.exe	ffaf44f106.exe
PID 3680 wrote to memory of 2220	3680	ffaf44f106.exe	axplont.exe
PID 3680 wrote to memory of 2220	3680	ffaf44f106.exe	axplont.exe
PID 3680 wrote to memory of 2220	3680	ffaf44f106.exe	axplont.exe
PID 1440 wrote to memory of 2536	1440	explortu.exe	04a0271d3c.exe
PID 1440 wrote to memory of 2536	1440	explortu.exe	04a0271d3c.exe
PID 1440 wrote to memory of 2536	1440	explortu.exe	04a0271d3c.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
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3616

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:1440

C:\Users\Admin\AppData\Local\Temp\9217037dc9\explortu.exe
"C:\Users\Admin\AppData\Local\Temp\9217037dc9\explortu.exe"
3⤵
PID:5044

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
- 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:3680

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:2220

C:\Users\Admin\AppData\Local\Temp\1000005001\04a0271d3c.exe
"C:\Users\Admin\AppData\Local\Temp\1000005001\04a0271d3c.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:2536

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:3484

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:4040

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:3192

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:1432

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