amadey | 4f7bb05edfb383b45568b57b070655812cbc2f7cbbc6fe6f772e16dc55c27e93

Virtualization/Sandbox Evasion

Processes:

4f7bb05edfb383b45568b57b070655812cbc2f7cbbc6fe6f772e16dc55c27e93.exeexplorku.exeamers.exeaxplons.exec37ac1adc8.exeaxplons.exeexplorku.exeaxplons.exe8016eb9e7a.exeexplorku.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	4f7bb05edfb383b45568b57b070655812cbc2f7cbbc6fe6f772e16dc55c27e93.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
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	c37ac1adc8.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__	axplons.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	8016eb9e7a.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.exeexplorku.exe4f7bb05edfb383b45568b57b070655812cbc2f7cbbc6fe6f772e16dc55c27e93.exeaxplons.exec37ac1adc8.exe8016eb9e7a.exeexplorku.exeaxplons.exeaxplons.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	amers.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	4f7bb05edfb383b45568b57b070655812cbc2f7cbbc6fe6f772e16dc55c27e93.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	axplons.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	c37ac1adc8.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	c37ac1adc8.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	8016eb9e7a.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\SystemBiosVersion	axplons.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	amers.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	axplons.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	4f7bb05edfb383b45568b57b070655812cbc2f7cbbc6fe6f772e16dc55c27e93.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	axplons.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	8016eb9e7a.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	explorku.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:

4f7bb05edfb383b45568b57b070655812cbc2f7cbbc6fe6f772e16dc55c27e93.exeexplorku.exeamers.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	4f7bb05edfb383b45568b57b070655812cbc2f7cbbc6fe6f772e16dc55c27e93.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	explorku.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	amers.exe

Executes dropped EXE 9 IoCs

Processes:

explorku.exeamers.exeaxplons.exec37ac1adc8.exe8016eb9e7a.exeexplorku.exeaxplons.exeaxplons.exeexplorku.exe

pid process

4244 explorku.exe
2044 amers.exe
3632 axplons.exe
740 c37ac1adc8.exe
904 8016eb9e7a.exe
5072 explorku.exe
604 axplons.exe
684 axplons.exe
5096 explorku.exe

pid	process
4244	explorku.exe
2044	amers.exe
3632	axplons.exe
740	c37ac1adc8.exe
904	8016eb9e7a.exe
5072	explorku.exe
604	axplons.exe
684	axplons.exe
5096	explorku.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:

amers.exeaxplons.exe8016eb9e7a.exeaxplons.exeaxplons.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Software\Wine	amers.exe
Key opened	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Software\Wine	axplons.exe
Key opened	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Software\Wine	8016eb9e7a.exe
Key opened	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Software\Wine	axplons.exe
Key opened	\REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\Software\Wine	axplons.exe

Themida packer 47 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral2/memory/412-1-0x0000000000220000-0x0000000000778000-memory.dmp	themida
behavioral2/memory/412-0-0x0000000000220000-0x0000000000778000-memory.dmp	themida
behavioral2/memory/412-3-0x0000000000220000-0x0000000000778000-memory.dmp	themida
behavioral2/memory/412-4-0x0000000000220000-0x0000000000778000-memory.dmp	themida
behavioral2/memory/412-8-0x0000000000220000-0x0000000000778000-memory.dmp	themida
behavioral2/memory/412-7-0x0000000000220000-0x0000000000778000-memory.dmp	themida
behavioral2/memory/412-5-0x0000000000220000-0x0000000000778000-memory.dmp	themida
behavioral2/memory/412-6-0x0000000000220000-0x0000000000778000-memory.dmp	themida
behavioral2/memory/412-2-0x0000000000220000-0x0000000000778000-memory.dmp	themida
C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe	themida
behavioral2/memory/4244-20-0x0000000000790000-0x0000000000CE8000-memory.dmp	themida
behavioral2/memory/412-21-0x0000000000220000-0x0000000000778000-memory.dmp	themida
behavioral2/memory/4244-27-0x0000000000790000-0x0000000000CE8000-memory.dmp	themida
behavioral2/memory/4244-24-0x0000000000790000-0x0000000000CE8000-memory.dmp	themida
behavioral2/memory/4244-30-0x0000000000790000-0x0000000000CE8000-memory.dmp	themida
behavioral2/memory/4244-29-0x0000000000790000-0x0000000000CE8000-memory.dmp	themida
behavioral2/memory/4244-28-0x0000000000790000-0x0000000000CE8000-memory.dmp	themida
behavioral2/memory/4244-26-0x0000000000790000-0x0000000000CE8000-memory.dmp	themida
behavioral2/memory/4244-25-0x0000000000790000-0x0000000000CE8000-memory.dmp	themida
behavioral2/memory/4244-23-0x0000000000790000-0x0000000000CE8000-memory.dmp	themida
C:\Users\Admin\AppData\Local\Temp\1000014001\c37ac1adc8.exe	themida
behavioral2/memory/4244-82-0x0000000000790000-0x0000000000CE8000-memory.dmp	themida
behavioral2/memory/740-86-0x0000000000150000-0x00000000007C4000-memory.dmp	themida
behavioral2/memory/740-87-0x0000000000150000-0x00000000007C4000-memory.dmp	themida
behavioral2/memory/740-84-0x0000000000150000-0x00000000007C4000-memory.dmp	themida
behavioral2/memory/740-83-0x0000000000150000-0x00000000007C4000-memory.dmp	themida
behavioral2/memory/740-85-0x0000000000150000-0x00000000007C4000-memory.dmp	themida
behavioral2/memory/740-88-0x0000000000150000-0x00000000007C4000-memory.dmp	themida
behavioral2/memory/740-90-0x0000000000150000-0x00000000007C4000-memory.dmp	themida
behavioral2/memory/740-91-0x0000000000150000-0x00000000007C4000-memory.dmp	themida
behavioral2/memory/740-89-0x0000000000150000-0x00000000007C4000-memory.dmp	themida
behavioral2/memory/4244-110-0x0000000000790000-0x0000000000CE8000-memory.dmp	themida
behavioral2/memory/740-111-0x0000000000150000-0x00000000007C4000-memory.dmp	themida
behavioral2/memory/5072-122-0x0000000000790000-0x0000000000CE8000-memory.dmp	themida
behavioral2/memory/5072-124-0x0000000000790000-0x0000000000CE8000-memory.dmp	themida
behavioral2/memory/5072-123-0x0000000000790000-0x0000000000CE8000-memory.dmp	themida
behavioral2/memory/5072-121-0x0000000000790000-0x0000000000CE8000-memory.dmp	themida
behavioral2/memory/5072-119-0x0000000000790000-0x0000000000CE8000-memory.dmp	themida
behavioral2/memory/5072-117-0x0000000000790000-0x0000000000CE8000-memory.dmp	themida
behavioral2/memory/5072-120-0x0000000000790000-0x0000000000CE8000-memory.dmp	themida
behavioral2/memory/5072-118-0x0000000000790000-0x0000000000CE8000-memory.dmp	themida
behavioral2/memory/5072-127-0x0000000000790000-0x0000000000CE8000-memory.dmp	themida
behavioral2/memory/5096-149-0x0000000000790000-0x0000000000CE8000-memory.dmp	themida
behavioral2/memory/5096-151-0x0000000000790000-0x0000000000CE8000-memory.dmp	themida
behavioral2/memory/5096-157-0x0000000000790000-0x0000000000CE8000-memory.dmp	themida
behavioral2/memory/5096-150-0x0000000000790000-0x0000000000CE8000-memory.dmp	themida
behavioral2/memory/5096-159-0x0000000000790000-0x0000000000CE8000-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-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\c37ac1adc8.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1000014001\\c37ac1adc8.exe"	explorku.exe

Checks whether UAC is enabled 1 TTPs 5 IoCs

evasion trojan

System Information Discovery

Processes:

4f7bb05edfb383b45568b57b070655812cbc2f7cbbc6fe6f772e16dc55c27e93.exeexplorku.exec37ac1adc8.exeexplorku.exeexplorku.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	4f7bb05edfb383b45568b57b070655812cbc2f7cbbc6fe6f772e16dc55c27e93.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	c37ac1adc8.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 5 IoCs

Processes:

amers.exeaxplons.exe8016eb9e7a.exeaxplons.exeaxplons.exe

pid process

2044 amers.exe
3632 axplons.exe
904 8016eb9e7a.exe
604 axplons.exe
684 axplons.exe

Drops file in Windows directory 2 IoCs

Processes:

4f7bb05edfb383b45568b57b070655812cbc2f7cbbc6fe6f772e16dc55c27e93.exeamers.exe

description	ioc	process
File created	C:\Windows\Tasks\explorku.job	4f7bb05edfb383b45568b57b070655812cbc2f7cbbc6fe6f772e16dc55c27e93.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.exe8016eb9e7a.exeaxplons.exeaxplons.exe

pid	process
2044	amers.exe
2044	amers.exe
3632	axplons.exe
3632	axplons.exe
904	8016eb9e7a.exe
904	8016eb9e7a.exe
604	axplons.exe
604	axplons.exe
684	axplons.exe
684	axplons.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

amers.exe

pid process

2044 amers.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

4f7bb05edfb383b45568b57b070655812cbc2f7cbbc6fe6f772e16dc55c27e93.exeexplorku.exeamers.exe

description	pid	process	target process
PID 412 wrote to memory of 4244	412	4f7bb05edfb383b45568b57b070655812cbc2f7cbbc6fe6f772e16dc55c27e93.exe	explorku.exe
PID 412 wrote to memory of 4244	412	4f7bb05edfb383b45568b57b070655812cbc2f7cbbc6fe6f772e16dc55c27e93.exe	explorku.exe
PID 412 wrote to memory of 4244	412	4f7bb05edfb383b45568b57b070655812cbc2f7cbbc6fe6f772e16dc55c27e93.exe	explorku.exe
PID 4244 wrote to memory of 2496	4244	explorku.exe	explorku.exe
PID 4244 wrote to memory of 2496	4244	explorku.exe	explorku.exe
PID 4244 wrote to memory of 2496	4244	explorku.exe	explorku.exe
PID 4244 wrote to memory of 2044	4244	explorku.exe	amers.exe
PID 4244 wrote to memory of 2044	4244	explorku.exe	amers.exe
PID 4244 wrote to memory of 2044	4244	explorku.exe	amers.exe
PID 2044 wrote to memory of 3632	2044	amers.exe	axplons.exe
PID 2044 wrote to memory of 3632	2044	amers.exe	axplons.exe
PID 2044 wrote to memory of 3632	2044	amers.exe	axplons.exe
PID 4244 wrote to memory of 740	4244	explorku.exe	c37ac1adc8.exe
PID 4244 wrote to memory of 740	4244	explorku.exe	c37ac1adc8.exe
PID 4244 wrote to memory of 740	4244	explorku.exe	c37ac1adc8.exe
PID 4244 wrote to memory of 904	4244	explorku.exe	8016eb9e7a.exe
PID 4244 wrote to memory of 904	4244	explorku.exe	8016eb9e7a.exe
PID 4244 wrote to memory of 904	4244	explorku.exe	8016eb9e7a.exe

C:\Users\Admin\AppData\Local\Temp\4f7bb05edfb383b45568b57b070655812cbc2f7cbbc6fe6f772e16dc55c27e93.exe
"C:\Users\Admin\AppData\Local\Temp\4f7bb05edfb383b45568b57b070655812cbc2f7cbbc6fe6f772e16dc55c27e93.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:412

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:4244

C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe
"C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe"
3⤵
PID:2496

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:2044

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:3632

C:\Users\Admin\AppData\Local\Temp\1000014001\c37ac1adc8.exe
"C:\Users\Admin\AppData\Local\Temp\1000014001\c37ac1adc8.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:740

C:\Users\Admin\1000017002\8016eb9e7a.exe
"C:\Users\Admin\1000017002\8016eb9e7a.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:904

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:604

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:5072

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:5096

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:684

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