amadey | 03b054227a8f087a0b939c8f88d9ab8c11ef6634db7167be7bb07d78808f1e57

Virtualization/Sandbox Evasion

Processes:

03b054227a8f087a0b939c8f88d9ab8c11ef6634db7167be7bb07d78808f1e57.exeexplorku.exeaxplons.exe8c7ec14071.exeaxplons.exeamers.exebaf74070c0.exeaxplons.exeexplorku.exeexplorku.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	03b054227a8f087a0b939c8f88d9ab8c11ef6634db7167be7bb07d78808f1e57.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__	8c7ec14071.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	axplons.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	amers.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	baf74070c0.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__	explorku.exe

Downloads MZ/PE file

Checks BIOS information in registry 2 TTPs 20 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

System Information Discovery

Processes:

explorku.exeamers.exeaxplons.exebaf74070c0.exeexplorku.exeaxplons.exe03b054227a8f087a0b939c8f88d9ab8c11ef6634db7167be7bb07d78808f1e57.exe8c7ec14071.exeexplorku.exeaxplons.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	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\VideoBiosVersion	axplons.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	baf74070c0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	axplons.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	03b054227a8f087a0b939c8f88d9ab8c11ef6634db7167be7bb07d78808f1e57.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	8c7ec14071.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	baf74070c0.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	03b054227a8f087a0b939c8f88d9ab8c11ef6634db7167be7bb07d78808f1e57.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	amers.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	8c7ec14071.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\SystemBiosVersion	axplons.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	axplons.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:

03b054227a8f087a0b939c8f88d9ab8c11ef6634db7167be7bb07d78808f1e57.exeexplorku.exeamers.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation	03b054227a8f087a0b939c8f88d9ab8c11ef6634db7167be7bb07d78808f1e57.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 9 IoCs

Processes:

explorku.exeamers.exeaxplons.exe8c7ec14071.exebaf74070c0.exeaxplons.exeexplorku.exeexplorku.exeaxplons.exe

pid	process
1880	explorku.exe
3980	amers.exe
3036	axplons.exe
4680	8c7ec14071.exe
1112	baf74070c0.exe
4904	axplons.exe
4708	explorku.exe
2652	explorku.exe
1076	axplons.exe

Identifies Wine through registry keys 2 TTPs 5 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.exebaf74070c0.exeaxplons.exe

description	ioc	process
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	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	baf74070c0.exe
Key opened	\REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Wine	axplons.exe

Themida packer 47 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/1288-2-0x0000000000950000-0x0000000000EA1000-memory.dmp	themida
behavioral1/memory/1288-3-0x0000000000950000-0x0000000000EA1000-memory.dmp	themida
behavioral1/memory/1288-0-0x0000000000950000-0x0000000000EA1000-memory.dmp	themida
behavioral1/memory/1288-1-0x0000000000950000-0x0000000000EA1000-memory.dmp	themida
behavioral1/memory/1288-7-0x0000000000950000-0x0000000000EA1000-memory.dmp	themida
behavioral1/memory/1288-5-0x0000000000950000-0x0000000000EA1000-memory.dmp	themida
behavioral1/memory/1288-6-0x0000000000950000-0x0000000000EA1000-memory.dmp	themida
behavioral1/memory/1288-4-0x0000000000950000-0x0000000000EA1000-memory.dmp	themida
behavioral1/memory/1288-8-0x0000000000950000-0x0000000000EA1000-memory.dmp	themida
C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe	themida
behavioral1/memory/1288-21-0x0000000000950000-0x0000000000EA1000-memory.dmp	themida
behavioral1/memory/1880-22-0x0000000000070000-0x00000000005C1000-memory.dmp	themida
behavioral1/memory/1880-25-0x0000000000070000-0x00000000005C1000-memory.dmp	themida
behavioral1/memory/1880-29-0x0000000000070000-0x00000000005C1000-memory.dmp	themida
behavioral1/memory/1880-28-0x0000000000070000-0x00000000005C1000-memory.dmp	themida
behavioral1/memory/1880-27-0x0000000000070000-0x00000000005C1000-memory.dmp	themida
behavioral1/memory/1880-26-0x0000000000070000-0x00000000005C1000-memory.dmp	themida
behavioral1/memory/1880-24-0x0000000000070000-0x00000000005C1000-memory.dmp	themida
behavioral1/memory/1880-23-0x0000000000070000-0x00000000005C1000-memory.dmp	themida
behavioral1/memory/1880-30-0x0000000000070000-0x00000000005C1000-memory.dmp	themida
behavioral1/memory/1880-45-0x0000000000070000-0x00000000005C1000-memory.dmp	themida
behavioral1/memory/1880-65-0x0000000000070000-0x00000000005C1000-memory.dmp	themida
C:\Users\Admin\AppData\Local\Temp\1000014001\8c7ec14071.exe	themida
behavioral1/memory/4680-84-0x0000000000CE0000-0x000000000135A000-memory.dmp	themida
behavioral1/memory/4680-86-0x0000000000CE0000-0x000000000135A000-memory.dmp	themida
behavioral1/memory/4680-88-0x0000000000CE0000-0x000000000135A000-memory.dmp	themida
behavioral1/memory/4680-87-0x0000000000CE0000-0x000000000135A000-memory.dmp	themida
behavioral1/memory/4680-85-0x0000000000CE0000-0x000000000135A000-memory.dmp	themida
behavioral1/memory/4680-89-0x0000000000CE0000-0x000000000135A000-memory.dmp	themida
behavioral1/memory/4680-90-0x0000000000CE0000-0x000000000135A000-memory.dmp	themida
behavioral1/memory/4680-91-0x0000000000CE0000-0x000000000135A000-memory.dmp	themida
behavioral1/memory/4680-92-0x0000000000CE0000-0x000000000135A000-memory.dmp	themida
behavioral1/memory/1880-112-0x0000000000070000-0x00000000005C1000-memory.dmp	themida
behavioral1/memory/4680-113-0x0000000000CE0000-0x000000000135A000-memory.dmp	themida
behavioral1/memory/4708-120-0x0000000000070000-0x00000000005C1000-memory.dmp	themida
behavioral1/memory/4708-123-0x0000000000070000-0x00000000005C1000-memory.dmp	themida
behavioral1/memory/4708-125-0x0000000000070000-0x00000000005C1000-memory.dmp	themida
behavioral1/memory/4708-126-0x0000000000070000-0x00000000005C1000-memory.dmp	themida
behavioral1/memory/4708-124-0x0000000000070000-0x00000000005C1000-memory.dmp	themida
behavioral1/memory/4708-122-0x0000000000070000-0x00000000005C1000-memory.dmp	themida
behavioral1/memory/4708-121-0x0000000000070000-0x00000000005C1000-memory.dmp	themida
behavioral1/memory/4708-119-0x0000000000070000-0x00000000005C1000-memory.dmp	themida
behavioral1/memory/4708-128-0x0000000000070000-0x00000000005C1000-memory.dmp	themida
behavioral1/memory/2652-153-0x0000000000070000-0x00000000005C1000-memory.dmp	themida
behavioral1/memory/2652-152-0x0000000000070000-0x00000000005C1000-memory.dmp	themida
behavioral1/memory/2652-151-0x0000000000070000-0x00000000005C1000-memory.dmp	themida
behavioral1/memory/2652-159-0x0000000000070000-0x00000000005C1000-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\8c7ec14071.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1000014001\\8c7ec14071.exe"	explorku.exe

Checks whether UAC is enabled 1 TTPs 5 IoCs

evasion trojan

System Information Discovery

Processes:

explorku.exeexplorku.exe03b054227a8f087a0b939c8f88d9ab8c11ef6634db7167be7bb07d78808f1e57.exeexplorku.exe8c7ec14071.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	explorku.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	03b054227a8f087a0b939c8f88d9ab8c11ef6634db7167be7bb07d78808f1e57.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	8c7ec14071.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs

Processes:

amers.exeaxplons.exebaf74070c0.exeaxplons.exeaxplons.exe

pid process

3980 amers.exe
3036 axplons.exe
1112 baf74070c0.exe
4904 axplons.exe
1076 axplons.exe

Drops file in Windows directory 2 IoCs

Processes:

03b054227a8f087a0b939c8f88d9ab8c11ef6634db7167be7bb07d78808f1e57.exeamers.exe

description	ioc	process
File created	C:\Windows\Tasks\explorku.job	03b054227a8f087a0b939c8f88d9ab8c11ef6634db7167be7bb07d78808f1e57.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 10 IoCs

Processes:

amers.exeaxplons.exebaf74070c0.exeaxplons.exeaxplons.exe

pid	process
3980	amers.exe
3980	amers.exe
3036	axplons.exe
3036	axplons.exe
1112	baf74070c0.exe
1112	baf74070c0.exe
4904	axplons.exe
4904	axplons.exe
1076	axplons.exe
1076	axplons.exe

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

03b054227a8f087a0b939c8f88d9ab8c11ef6634db7167be7bb07d78808f1e57.exeamers.exe

pid process

1288 03b054227a8f087a0b939c8f88d9ab8c11ef6634db7167be7bb07d78808f1e57.exe
3980 amers.exe

pid	process
1288	03b054227a8f087a0b939c8f88d9ab8c11ef6634db7167be7bb07d78808f1e57.exe
3980	amers.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

03b054227a8f087a0b939c8f88d9ab8c11ef6634db7167be7bb07d78808f1e57.exeexplorku.exeamers.exe

description	pid	process	target process
PID 1288 wrote to memory of 1880	1288	03b054227a8f087a0b939c8f88d9ab8c11ef6634db7167be7bb07d78808f1e57.exe	explorku.exe
PID 1288 wrote to memory of 1880	1288	03b054227a8f087a0b939c8f88d9ab8c11ef6634db7167be7bb07d78808f1e57.exe	explorku.exe
PID 1288 wrote to memory of 1880	1288	03b054227a8f087a0b939c8f88d9ab8c11ef6634db7167be7bb07d78808f1e57.exe	explorku.exe
PID 1880 wrote to memory of 536	1880	explorku.exe	explorku.exe
PID 1880 wrote to memory of 536	1880	explorku.exe	explorku.exe
PID 1880 wrote to memory of 536	1880	explorku.exe	explorku.exe
PID 1880 wrote to memory of 3980	1880	explorku.exe	amers.exe
PID 1880 wrote to memory of 3980	1880	explorku.exe	amers.exe
PID 1880 wrote to memory of 3980	1880	explorku.exe	amers.exe
PID 3980 wrote to memory of 3036	3980	amers.exe	axplons.exe
PID 3980 wrote to memory of 3036	3980	amers.exe	axplons.exe
PID 3980 wrote to memory of 3036	3980	amers.exe	axplons.exe
PID 1880 wrote to memory of 4680	1880	explorku.exe	8c7ec14071.exe
PID 1880 wrote to memory of 4680	1880	explorku.exe	8c7ec14071.exe
PID 1880 wrote to memory of 4680	1880	explorku.exe	8c7ec14071.exe
PID 1880 wrote to memory of 1112	1880	explorku.exe	baf74070c0.exe
PID 1880 wrote to memory of 1112	1880	explorku.exe	baf74070c0.exe
PID 1880 wrote to memory of 1112	1880	explorku.exe	baf74070c0.exe

C:\Users\Admin\AppData\Local\Temp\03b054227a8f087a0b939c8f88d9ab8c11ef6634db7167be7bb07d78808f1e57.exe
"C:\Users\Admin\AppData\Local\Temp\03b054227a8f087a0b939c8f88d9ab8c11ef6634db7167be7bb07d78808f1e57.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 FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1288
- 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:1880
- - C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe
    "C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe"
    3⤵
    PID:536
- - 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:3980
  - - 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:3036
- - C:\Users\Admin\AppData\Local\Temp\1000014001\8c7ec14071.exe
    "C:\Users\Admin\AppData\Local\Temp\1000014001\8c7ec14071.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:4680
- - C:\Users\Admin\1000017002\baf74070c0.exe
    "C:\Users\Admin\1000017002\baf74070c0.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
    - Suspicious behavior: EnumeratesProcesses
    PID:1112

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:4904

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:4708

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:1076

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:2652

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

Credential Access

Discovery

Query Registry

System Information Discovery

Virtualization/Sandbox Evasion