amadey | d67c105be8b195ae99cb0e5117779583f757882f8944cb175fc57acf95bb51a6

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	d67c105be8b195ae99cb0e5117779583f757882f8944cb175fc57acf95bb51a6.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
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__	683419f3e1.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 18 IoCs

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

Query Registry

System Information Discovery

description	ioc	Process
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\SystemBiosVersion	explorku.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	amers.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	683419f3e1.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	d67c105be8b195ae99cb0e5117779583f757882f8944cb175fc57acf95bb51a6.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\SystemBiosVersion	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	axplons.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	d67c105be8b195ae99cb0e5117779583f757882f8944cb175fc57acf95bb51a6.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	amers.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	683419f3e1.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	amers.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	d67c105be8b195ae99cb0e5117779583f757882f8944cb175fc57acf95bb51a6.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation	explorku.exe

Executes dropped EXE 8 IoCs

pid	Process
404	explorku.exe
2340	amers.exe
1824	683419f3e1.exe
4960	axplons.exe
2896	axplons.exe
3052	explorku.exe
2220	explorku.exe
3068	explorku.exe

Identifies Wine through registry keys 2 TTPs 3 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Wine	amers.exe
Key opened	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Wine	axplons.exe
Key opened	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Wine	axplons.exe

Themida packer 49 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral1/memory/3892-0-0x0000000000290000-0x00000000007C6000-memory.dmp	themida
behavioral1/memory/3892-2-0x0000000000290000-0x00000000007C6000-memory.dmp	themida
behavioral1/memory/3892-3-0x0000000000290000-0x00000000007C6000-memory.dmp	themida
behavioral1/memory/3892-1-0x0000000000290000-0x00000000007C6000-memory.dmp	themida
behavioral1/memory/3892-5-0x0000000000290000-0x00000000007C6000-memory.dmp	themida
behavioral1/memory/3892-6-0x0000000000290000-0x00000000007C6000-memory.dmp	themida
behavioral1/memory/3892-4-0x0000000000290000-0x00000000007C6000-memory.dmp	themida
behavioral1/memory/3892-7-0x0000000000290000-0x00000000007C6000-memory.dmp	themida
behavioral1/memory/3892-9-0x0000000000290000-0x00000000007C6000-memory.dmp	themida
behavioral1/files/0x000200000001e32b-14.dat	themida
behavioral1/memory/404-21-0x00000000009A0000-0x0000000000ED6000-memory.dmp	themida
behavioral1/memory/404-22-0x00000000009A0000-0x0000000000ED6000-memory.dmp	themida
behavioral1/memory/404-23-0x00000000009A0000-0x0000000000ED6000-memory.dmp	themida
behavioral1/memory/3892-20-0x0000000000290000-0x00000000007C6000-memory.dmp	themida
behavioral1/memory/404-24-0x00000000009A0000-0x0000000000ED6000-memory.dmp	themida
behavioral1/memory/404-26-0x00000000009A0000-0x0000000000ED6000-memory.dmp	themida
behavioral1/memory/404-28-0x00000000009A0000-0x0000000000ED6000-memory.dmp	themida
behavioral1/memory/404-25-0x00000000009A0000-0x0000000000ED6000-memory.dmp	themida
behavioral1/memory/404-27-0x00000000009A0000-0x0000000000ED6000-memory.dmp	themida
behavioral1/files/0x0007000000023263-53.dat	themida
behavioral1/memory/1824-70-0x0000000000C00000-0x000000000128C000-memory.dmp	themida
behavioral1/memory/1824-82-0x0000000000C00000-0x000000000128C000-memory.dmp	themida
behavioral1/memory/3052-86-0x00000000009A0000-0x0000000000ED6000-memory.dmp	themida
behavioral1/memory/3052-94-0x00000000009A0000-0x0000000000ED6000-memory.dmp	themida
behavioral1/memory/3052-92-0x00000000009A0000-0x0000000000ED6000-memory.dmp	themida
behavioral1/memory/3052-91-0x00000000009A0000-0x0000000000ED6000-memory.dmp	themida
behavioral1/memory/1824-97-0x0000000000C00000-0x000000000128C000-memory.dmp	themida
behavioral1/memory/1824-98-0x0000000000C00000-0x000000000128C000-memory.dmp	themida
behavioral1/memory/1824-96-0x0000000000C00000-0x000000000128C000-memory.dmp	themida
behavioral1/memory/1824-95-0x0000000000C00000-0x000000000128C000-memory.dmp	themida
behavioral1/memory/3052-93-0x00000000009A0000-0x0000000000ED6000-memory.dmp	themida
behavioral1/memory/1824-85-0x0000000000C00000-0x000000000128C000-memory.dmp	themida
behavioral1/memory/3052-99-0x00000000009A0000-0x0000000000ED6000-memory.dmp	themida
behavioral1/memory/3052-89-0x00000000009A0000-0x0000000000ED6000-memory.dmp	themida
behavioral1/memory/3052-88-0x00000000009A0000-0x0000000000ED6000-memory.dmp	themida
behavioral1/memory/3052-87-0x00000000009A0000-0x0000000000ED6000-memory.dmp	themida
behavioral1/memory/1824-84-0x0000000000C00000-0x000000000128C000-memory.dmp	themida
behavioral1/memory/1824-83-0x0000000000C00000-0x000000000128C000-memory.dmp	themida
behavioral1/memory/404-102-0x00000000009A0000-0x0000000000ED6000-memory.dmp	themida
behavioral1/memory/1824-103-0x0000000000C00000-0x000000000128C000-memory.dmp	themida
behavioral1/memory/2220-122-0x00000000009A0000-0x0000000000ED6000-memory.dmp	themida
behavioral1/memory/2220-123-0x00000000009A0000-0x0000000000ED6000-memory.dmp	themida
behavioral1/memory/2220-127-0x00000000009A0000-0x0000000000ED6000-memory.dmp	themida
behavioral1/memory/2220-128-0x00000000009A0000-0x0000000000ED6000-memory.dmp	themida
behavioral1/memory/2220-126-0x00000000009A0000-0x0000000000ED6000-memory.dmp	themida
behavioral1/memory/2220-125-0x00000000009A0000-0x0000000000ED6000-memory.dmp	themida
behavioral1/memory/2220-124-0x00000000009A0000-0x0000000000ED6000-memory.dmp	themida
behavioral1/memory/2220-129-0x00000000009A0000-0x0000000000ED6000-memory.dmp	themida
behavioral1/memory/3068-157-0x00000000009A0000-0x0000000000ED6000-memory.dmp	themida

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\683419f3e1.exe = "C:\\Users\\Admin\\1000006002\\683419f3e1.exe"	explorku.exe

Checks whether UAC is enabled 1 TTPs 6 IoCs

evasion trojan

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	d67c105be8b195ae99cb0e5117779583f757882f8944cb175fc57acf95bb51a6.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	683419f3e1.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	explorku.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs

pid	Process
2340	amers.exe
2896	axplons.exe
4960	axplons.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\explorku.job	d67c105be8b195ae99cb0e5117779583f757882f8944cb175fc57acf95bb51a6.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 6 IoCs

pid	Process
2340	amers.exe
2340	amers.exe
2896	axplons.exe
2896	axplons.exe
4960	axplons.exe
4960	axplons.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3892	d67c105be8b195ae99cb0e5117779583f757882f8944cb175fc57acf95bb51a6.exe
2340	amers.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3892 wrote to memory of 404	3892	d67c105be8b195ae99cb0e5117779583f757882f8944cb175fc57acf95bb51a6.exe	90
PID 3892 wrote to memory of 404	3892	d67c105be8b195ae99cb0e5117779583f757882f8944cb175fc57acf95bb51a6.exe	90
PID 3892 wrote to memory of 404	3892	d67c105be8b195ae99cb0e5117779583f757882f8944cb175fc57acf95bb51a6.exe	90
PID 404 wrote to memory of 2492	404	explorku.exe	95
PID 404 wrote to memory of 2492	404	explorku.exe	95
PID 404 wrote to memory of 2492	404	explorku.exe	95
PID 404 wrote to memory of 2340	404	explorku.exe	97
PID 404 wrote to memory of 2340	404	explorku.exe	97
PID 404 wrote to memory of 2340	404	explorku.exe	97
PID 404 wrote to memory of 1824	404	explorku.exe	98
PID 404 wrote to memory of 1824	404	explorku.exe	98
PID 404 wrote to memory of 1824	404	explorku.exe	98
PID 2340 wrote to memory of 4960	2340	amers.exe	100
PID 2340 wrote to memory of 4960	2340	amers.exe	100
PID 2340 wrote to memory of 4960	2340	amers.exe	100

C:\Users\Admin\AppData\Local\Temp\d67c105be8b195ae99cb0e5117779583f757882f8944cb175fc57acf95bb51a6.exe
"C:\Users\Admin\AppData\Local\Temp\d67c105be8b195ae99cb0e5117779583f757882f8944cb175fc57acf95bb51a6.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:3892
- 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:404
- - C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe
    "C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe"
    3⤵
    PID:2492
- - 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 FindShellTrayWindow
    - Suspicious use of WriteProcessMemory
    PID:2340
  - - 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:4960
- - C:\Users\Admin\1000006002\683419f3e1.exe
    "C:\Users\Admin\1000006002\683419f3e1.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:1824

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:2896

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:3052

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1316 --field-trial-handle=2284,i,9807419199535700662,2319175108930815708,262144 --variations-seed-version /prefetch:8
1⤵
PID:1188

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:2220

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:3068

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