amadey | 63a57d86f18040563e6b0a9fa14c3470cbd614b6e6e58068e50b6e3594db0e3f

Virtualization/Sandbox Evasion

Processes:

explorku.exeamers.exeexplorku.exe817701ee19.exeaxplons.exeexplorku.exe63a57d86f18040563e6b0a9fa14c3470cbd614b6e6e58068e50b6e3594db0e3f.exeexplorku.exeaxplons.exeaxplons.exeexplorku.exe

description	ioc	Process
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__	explorku.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	817701ee19.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__	63a57d86f18040563e6b0a9fa14c3470cbd614b6e6e58068e50b6e3594db0e3f.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 22 IoCs

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

Query Registry

System Information Discovery

Processes:

axplons.exeaxplons.exe63a57d86f18040563e6b0a9fa14c3470cbd614b6e6e58068e50b6e3594db0e3f.exeexplorku.exeexplorku.exeaxplons.exe817701ee19.exeexplorku.exeexplorku.exeamers.exeexplorku.exe

description	ioc	Process
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\VideoBiosVersion	63a57d86f18040563e6b0a9fa14c3470cbd614b6e6e58068e50b6e3594db0e3f.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorku.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	817701ee19.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\SystemBiosVersion	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	axplons.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	63a57d86f18040563e6b0a9fa14c3470cbd614b6e6e58068e50b6e3594db0e3f.exe
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	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	amers.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	817701ee19.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	axplons.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:

63a57d86f18040563e6b0a9fa14c3470cbd614b6e6e58068e50b6e3594db0e3f.exeexplorku.exeamers.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation	63a57d86f18040563e6b0a9fa14c3470cbd614b6e6e58068e50b6e3594db0e3f.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation	explorku.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation	amers.exe

Executes dropped EXE 10 IoCs

Processes:

explorku.exeexplorku.exeamers.exeexplorku.exeaxplons.exe817701ee19.exeexplorku.exeaxplons.exeaxplons.exeexplorku.exe

pid	Process
5004	explorku.exe
4220	explorku.exe
2008	amers.exe
2452	explorku.exe
3220	axplons.exe
884	817701ee19.exe
3700	explorku.exe
3236	axplons.exe
4484	axplons.exe
1284	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:

explorku.exeamers.exeaxplons.exeaxplons.exeaxplons.exe

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Software\Wine	explorku.exe
Key opened	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Software\Wine	amers.exe
Key opened	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Software\Wine	axplons.exe
Key opened	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Software\Wine	axplons.exe
Key opened	\REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Software\Wine	axplons.exe

Themida packer 45 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral1/memory/2772-1-0x0000000000680000-0x0000000000B78000-memory.dmp	themida
behavioral1/memory/2772-3-0x0000000000680000-0x0000000000B78000-memory.dmp	themida
behavioral1/memory/2772-6-0x0000000000680000-0x0000000000B78000-memory.dmp	themida
behavioral1/memory/2772-8-0x0000000000680000-0x0000000000B78000-memory.dmp	themida
behavioral1/memory/2772-7-0x0000000000680000-0x0000000000B78000-memory.dmp	themida
behavioral1/memory/2772-5-0x0000000000680000-0x0000000000B78000-memory.dmp	themida
behavioral1/memory/2772-4-0x0000000000680000-0x0000000000B78000-memory.dmp	themida
behavioral1/memory/2772-2-0x0000000000680000-0x0000000000B78000-memory.dmp	themida
behavioral1/memory/2772-0-0x0000000000680000-0x0000000000B78000-memory.dmp	themida
behavioral1/files/0x0007000000023422-14.dat	themida
behavioral1/memory/5004-22-0x0000000000BB0000-0x00000000010A8000-memory.dmp	themida
behavioral1/memory/5004-29-0x0000000000BB0000-0x00000000010A8000-memory.dmp	themida
behavioral1/memory/5004-30-0x0000000000BB0000-0x00000000010A8000-memory.dmp	themida
behavioral1/memory/5004-28-0x0000000000BB0000-0x00000000010A8000-memory.dmp	themida
behavioral1/memory/5004-27-0x0000000000BB0000-0x00000000010A8000-memory.dmp	themida
behavioral1/memory/5004-26-0x0000000000BB0000-0x00000000010A8000-memory.dmp	themida
behavioral1/memory/5004-25-0x0000000000BB0000-0x00000000010A8000-memory.dmp	themida
behavioral1/memory/5004-24-0x0000000000BB0000-0x00000000010A8000-memory.dmp	themida
behavioral1/memory/5004-23-0x0000000000BB0000-0x00000000010A8000-memory.dmp	themida
behavioral1/memory/2772-21-0x0000000000680000-0x0000000000B78000-memory.dmp	themida
behavioral1/memory/4220-37-0x0000000000BB0000-0x00000000010A8000-memory.dmp	themida
behavioral1/memory/5004-63-0x0000000000BB0000-0x00000000010A8000-memory.dmp	themida
behavioral1/memory/2452-92-0x0000000000BB0000-0x00000000010A8000-memory.dmp	themida
behavioral1/memory/2452-96-0x0000000000BB0000-0x00000000010A8000-memory.dmp	themida
behavioral1/memory/2452-97-0x0000000000BB0000-0x00000000010A8000-memory.dmp	themida
behavioral1/memory/2452-102-0x0000000000BB0000-0x00000000010A8000-memory.dmp	themida
behavioral1/memory/2452-101-0x0000000000BB0000-0x00000000010A8000-memory.dmp	themida
behavioral1/memory/2452-100-0x0000000000BB0000-0x00000000010A8000-memory.dmp	themida
behavioral1/memory/2452-95-0x0000000000BB0000-0x00000000010A8000-memory.dmp	themida
behavioral1/memory/2452-99-0x0000000000BB0000-0x00000000010A8000-memory.dmp	themida
behavioral1/memory/2452-109-0x0000000000BB0000-0x00000000010A8000-memory.dmp	themida
behavioral1/files/0x0009000000023424-114.dat	themida
behavioral1/memory/884-127-0x0000000000D50000-0x00000000013CF000-memory.dmp	themida
behavioral1/memory/884-130-0x0000000000D50000-0x00000000013CF000-memory.dmp	themida
behavioral1/memory/884-132-0x0000000000D50000-0x00000000013CF000-memory.dmp	themida
behavioral1/memory/884-131-0x0000000000D50000-0x00000000013CF000-memory.dmp	themida
behavioral1/memory/884-129-0x0000000000D50000-0x00000000013CF000-memory.dmp	themida
behavioral1/memory/884-133-0x0000000000D50000-0x00000000013CF000-memory.dmp	themida
behavioral1/memory/884-134-0x0000000000D50000-0x00000000013CF000-memory.dmp	themida
behavioral1/memory/5004-139-0x0000000000BB0000-0x00000000010A8000-memory.dmp	themida
behavioral1/memory/884-147-0x0000000000D50000-0x00000000013CF000-memory.dmp	themida
behavioral1/memory/3700-166-0x0000000000BB0000-0x00000000010A8000-memory.dmp	themida
behavioral1/memory/3700-170-0x0000000000BB0000-0x00000000010A8000-memory.dmp	themida
behavioral1/memory/1284-196-0x0000000000BB0000-0x00000000010A8000-memory.dmp	themida
behavioral1/memory/1284-203-0x0000000000BB0000-0x00000000010A8000-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-1-5-21-2804150937-2146708401-419095071-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\817701ee19.exe = "C:\\Users\\Admin\\1000006002\\817701ee19.exe"	explorku.exe

Checks whether UAC is enabled 1 TTPs 6 IoCs

evasion trojan

System Information Discovery

Processes:

817701ee19.exeexplorku.exeexplorku.exe63a57d86f18040563e6b0a9fa14c3470cbd614b6e6e58068e50b6e3594db0e3f.exeexplorku.exeexplorku.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	817701ee19.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
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	63a57d86f18040563e6b0a9fa14c3470cbd614b6e6e58068e50b6e3594db0e3f.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:

explorku.exeamers.exeaxplons.exeaxplons.exeaxplons.exe

pid	Process
4220	explorku.exe
2008	amers.exe
3220	axplons.exe
3236	axplons.exe
4484	axplons.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

explorku.exe

description	pid	Process	procid_target
PID 5004 set thread context of 4220	5004	explorku.exe	89

Drops file in Windows directory 2 IoCs

Processes:

63a57d86f18040563e6b0a9fa14c3470cbd614b6e6e58068e50b6e3594db0e3f.exeamers.exe

description	ioc	Process
File created	C:\Windows\Tasks\explorku.job	63a57d86f18040563e6b0a9fa14c3470cbd614b6e6e58068e50b6e3594db0e3f.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:

explorku.exeamers.exeaxplons.exeaxplons.exeaxplons.exe

pid	Process
4220	explorku.exe
4220	explorku.exe
2008	amers.exe
2008	amers.exe
3220	axplons.exe
3220	axplons.exe
3236	axplons.exe
3236	axplons.exe
4484	axplons.exe
4484	axplons.exe

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

63a57d86f18040563e6b0a9fa14c3470cbd614b6e6e58068e50b6e3594db0e3f.exeexplorku.exeamers.exe

description	pid	Process	procid_target
PID 2772 wrote to memory of 5004	2772	63a57d86f18040563e6b0a9fa14c3470cbd614b6e6e58068e50b6e3594db0e3f.exe	85
PID 2772 wrote to memory of 5004	2772	63a57d86f18040563e6b0a9fa14c3470cbd614b6e6e58068e50b6e3594db0e3f.exe	85
PID 2772 wrote to memory of 5004	2772	63a57d86f18040563e6b0a9fa14c3470cbd614b6e6e58068e50b6e3594db0e3f.exe	85
PID 5004 wrote to memory of 4220	5004	explorku.exe	89
PID 5004 wrote to memory of 4220	5004	explorku.exe	89
PID 5004 wrote to memory of 4220	5004	explorku.exe	89
PID 5004 wrote to memory of 4220	5004	explorku.exe	89
PID 5004 wrote to memory of 4220	5004	explorku.exe	89
PID 5004 wrote to memory of 4220	5004	explorku.exe	89
PID 5004 wrote to memory of 4220	5004	explorku.exe	89
PID 5004 wrote to memory of 4220	5004	explorku.exe	89
PID 5004 wrote to memory of 4220	5004	explorku.exe	89
PID 5004 wrote to memory of 4220	5004	explorku.exe	89
PID 5004 wrote to memory of 4220	5004	explorku.exe	89
PID 5004 wrote to memory of 4220	5004	explorku.exe	89
PID 5004 wrote to memory of 2008	5004	explorku.exe	90
PID 5004 wrote to memory of 2008	5004	explorku.exe	90
PID 5004 wrote to memory of 2008	5004	explorku.exe	90
PID 2008 wrote to memory of 3220	2008	amers.exe	92
PID 2008 wrote to memory of 3220	2008	amers.exe	92
PID 2008 wrote to memory of 3220	2008	amers.exe	92
PID 5004 wrote to memory of 884	5004	explorku.exe	93
PID 5004 wrote to memory of 884	5004	explorku.exe	93
PID 5004 wrote to memory of 884	5004	explorku.exe	93

C:\Users\Admin\AppData\Local\Temp\63a57d86f18040563e6b0a9fa14c3470cbd614b6e6e58068e50b6e3594db0e3f.exe
"C:\Users\Admin\AppData\Local\Temp\63a57d86f18040563e6b0a9fa14c3470cbd614b6e6e58068e50b6e3594db0e3f.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:2772
- 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 SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:5004
- - C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe
    "C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.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:4220
- - C:\Users\Admin\AppData\Local\Temp\1000005001\amers.exe
    "C:\Users\Admin\AppData\Local\Temp\1000005001\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 WriteProcessMemory
    PID:2008
  - - 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:3220
- - C:\Users\Admin\1000006002\817701ee19.exe
    "C:\Users\Admin\1000006002\817701ee19.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:884

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:2452

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:3236

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:3700

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:1284

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:4484

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