amadey | 35c8b0b91dbdad7fc19353e1c6f5120f2fa26b8b631e1b3663f1015187c77de0

Virtualization/Sandbox Evasion

Processes:

35c8b0b91dbdad7fc19353e1c6f5120f2fa26b8b631e1b3663f1015187c77de0.exeamers.exeaxplons.exeaxplons.exeexplorku.exeexplorku.exeaxplons.exed376610349.exec12ff32a34.exeexplorku.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	35c8b0b91dbdad7fc19353e1c6f5120f2fa26b8b631e1b3663f1015187c77de0.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__	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__	axplons.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	d376610349.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	c12ff32a34.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

T1082

Processes:

axplons.exeexplorku.exe35c8b0b91dbdad7fc19353e1c6f5120f2fa26b8b631e1b3663f1015187c77de0.exeexplorku.exed376610349.exeaxplons.exec12ff32a34.exeexplorku.exeamers.exeaxplons.exe

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	35c8b0b91dbdad7fc19353e1c6f5120f2fa26b8b631e1b3663f1015187c77de0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	d376610349.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	d376610349.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	35c8b0b91dbdad7fc19353e1c6f5120f2fa26b8b631e1b3663f1015187c77de0.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	c12ff32a34.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	c12ff32a34.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	amers.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	amers.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\VideoBiosVersion	axplons.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explorku.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explorku.exe

Executes dropped EXE 9 IoCs

Processes:

explorku.exeamers.exeaxplons.exed376610349.exec12ff32a34.exeaxplons.exeexplorku.exeaxplons.exeexplorku.exe

pid	process
1204	explorku.exe
3700	amers.exe
2572	axplons.exe
4576	d376610349.exe
5068	c12ff32a34.exe
4868	axplons.exe
3696	explorku.exe
2644	axplons.exe
1940	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.exec12ff32a34.exeaxplons.exeaxplons.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-3107365284-1576850094-161165143-1000\Software\Wine	amers.exe
Key opened	\REGISTRY\USER\S-1-5-21-3107365284-1576850094-161165143-1000\Software\Wine	axplons.exe
Key opened	\REGISTRY\USER\S-1-5-21-3107365284-1576850094-161165143-1000\Software\Wine	c12ff32a34.exe
Key opened	\REGISTRY\USER\S-1-5-21-3107365284-1576850094-161165143-1000\Software\Wine	axplons.exe
Key opened	\REGISTRY\USER\S-1-5-21-3107365284-1576850094-161165143-1000\Software\Wine	axplons.exe

Themida packer 42 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
behavioral2/memory/2720-0-0x0000000000030000-0x000000000057D000-memory.dmp	themida
behavioral2/memory/2720-1-0x0000000000030000-0x000000000057D000-memory.dmp	themida
behavioral2/memory/2720-2-0x0000000000030000-0x000000000057D000-memory.dmp	themida
behavioral2/memory/2720-4-0x0000000000030000-0x000000000057D000-memory.dmp	themida
behavioral2/memory/2720-6-0x0000000000030000-0x000000000057D000-memory.dmp	themida
behavioral2/memory/2720-7-0x0000000000030000-0x000000000057D000-memory.dmp	themida
behavioral2/memory/2720-3-0x0000000000030000-0x000000000057D000-memory.dmp	themida
behavioral2/memory/2720-5-0x0000000000030000-0x000000000057D000-memory.dmp	themida
C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe	themida
behavioral2/memory/1204-19-0x0000000000300000-0x000000000084D000-memory.dmp	themida
behavioral2/memory/2720-21-0x0000000000030000-0x000000000057D000-memory.dmp	themida
behavioral2/memory/1204-26-0x0000000000300000-0x000000000084D000-memory.dmp	themida
behavioral2/memory/1204-28-0x0000000000300000-0x000000000084D000-memory.dmp	themida
behavioral2/memory/1204-25-0x0000000000300000-0x000000000084D000-memory.dmp	themida
behavioral2/memory/1204-24-0x0000000000300000-0x000000000084D000-memory.dmp	themida
behavioral2/memory/1204-22-0x0000000000300000-0x000000000084D000-memory.dmp	themida
behavioral2/memory/1204-27-0x0000000000300000-0x000000000084D000-memory.dmp	themida
behavioral2/memory/1204-23-0x0000000000300000-0x000000000084D000-memory.dmp	themida
C:\Users\Admin\AppData\Local\Temp\1000014001\d376610349.exe	themida
behavioral2/memory/1204-79-0x0000000000300000-0x000000000084D000-memory.dmp	themida
behavioral2/memory/4576-81-0x00000000002E0000-0x0000000000911000-memory.dmp	themida
behavioral2/memory/4576-82-0x00000000002E0000-0x0000000000911000-memory.dmp	themida
behavioral2/memory/4576-84-0x00000000002E0000-0x0000000000911000-memory.dmp	themida
behavioral2/memory/4576-83-0x00000000002E0000-0x0000000000911000-memory.dmp	themida
behavioral2/memory/4576-85-0x00000000002E0000-0x0000000000911000-memory.dmp	themida
behavioral2/memory/4576-86-0x00000000002E0000-0x0000000000911000-memory.dmp	themida
behavioral2/memory/4576-89-0x00000000002E0000-0x0000000000911000-memory.dmp	themida
behavioral2/memory/4576-88-0x00000000002E0000-0x0000000000911000-memory.dmp	themida
behavioral2/memory/4576-87-0x00000000002E0000-0x0000000000911000-memory.dmp	themida
behavioral2/memory/1204-107-0x0000000000300000-0x000000000084D000-memory.dmp	themida
behavioral2/memory/4576-109-0x00000000002E0000-0x0000000000911000-memory.dmp	themida
behavioral2/memory/3696-120-0x0000000000300000-0x000000000084D000-memory.dmp	themida
behavioral2/memory/3696-123-0x0000000000300000-0x000000000084D000-memory.dmp	themida
behavioral2/memory/3696-127-0x0000000000300000-0x000000000084D000-memory.dmp	themida
behavioral2/memory/3696-126-0x0000000000300000-0x000000000084D000-memory.dmp	themida
behavioral2/memory/3696-124-0x0000000000300000-0x000000000084D000-memory.dmp	themida
behavioral2/memory/3696-125-0x0000000000300000-0x000000000084D000-memory.dmp	themida
behavioral2/memory/3696-122-0x0000000000300000-0x000000000084D000-memory.dmp	themida
behavioral2/memory/3696-121-0x0000000000300000-0x000000000084D000-memory.dmp	themida
behavioral2/memory/3696-129-0x0000000000300000-0x000000000084D000-memory.dmp	themida
behavioral2/memory/1940-157-0x0000000000300000-0x000000000084D000-memory.dmp	themida
behavioral2/memory/1940-165-0x0000000000300000-0x000000000084D000-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-1-5-21-3107365284-1576850094-161165143-1000\Software\Microsoft\Windows\CurrentVersion\Run\d376610349.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1000014001\\d376610349.exe"	explorku.exe

Checks whether UAC is enabled 1 TTPs 5 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

35c8b0b91dbdad7fc19353e1c6f5120f2fa26b8b631e1b3663f1015187c77de0.exeexplorku.exed376610349.exeexplorku.exeexplorku.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	35c8b0b91dbdad7fc19353e1c6f5120f2fa26b8b631e1b3663f1015187c77de0.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	d376610349.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.exec12ff32a34.exeaxplons.exeaxplons.exe

pid process

3700 amers.exe
2572 axplons.exe
5068 c12ff32a34.exe
4868 axplons.exe
2644 axplons.exe

Drops file in Windows directory 2 IoCs

Processes:

35c8b0b91dbdad7fc19353e1c6f5120f2fa26b8b631e1b3663f1015187c77de0.exeamers.exe

description	ioc	process
File created	C:\Windows\Tasks\explorku.job	35c8b0b91dbdad7fc19353e1c6f5120f2fa26b8b631e1b3663f1015187c77de0.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.exec12ff32a34.exeaxplons.exeaxplons.exe

pid	process
3700	amers.exe
3700	amers.exe
2572	axplons.exe
2572	axplons.exe
5068	c12ff32a34.exe
5068	c12ff32a34.exe
4868	axplons.exe
4868	axplons.exe
2644	axplons.exe
2644	axplons.exe

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

35c8b0b91dbdad7fc19353e1c6f5120f2fa26b8b631e1b3663f1015187c77de0.exe

pid process

2720 35c8b0b91dbdad7fc19353e1c6f5120f2fa26b8b631e1b3663f1015187c77de0.exe

pid	process
2720	35c8b0b91dbdad7fc19353e1c6f5120f2fa26b8b631e1b3663f1015187c77de0.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

35c8b0b91dbdad7fc19353e1c6f5120f2fa26b8b631e1b3663f1015187c77de0.exeexplorku.exeamers.exe

description	pid	process	target process
PID 2720 wrote to memory of 1204	2720	35c8b0b91dbdad7fc19353e1c6f5120f2fa26b8b631e1b3663f1015187c77de0.exe	explorku.exe
PID 2720 wrote to memory of 1204	2720	35c8b0b91dbdad7fc19353e1c6f5120f2fa26b8b631e1b3663f1015187c77de0.exe	explorku.exe
PID 2720 wrote to memory of 1204	2720	35c8b0b91dbdad7fc19353e1c6f5120f2fa26b8b631e1b3663f1015187c77de0.exe	explorku.exe
PID 1204 wrote to memory of 4916	1204	explorku.exe	explorku.exe
PID 1204 wrote to memory of 4916	1204	explorku.exe	explorku.exe
PID 1204 wrote to memory of 4916	1204	explorku.exe	explorku.exe
PID 1204 wrote to memory of 3700	1204	explorku.exe	amers.exe
PID 1204 wrote to memory of 3700	1204	explorku.exe	amers.exe
PID 1204 wrote to memory of 3700	1204	explorku.exe	amers.exe
PID 3700 wrote to memory of 2572	3700	amers.exe	axplons.exe
PID 3700 wrote to memory of 2572	3700	amers.exe	axplons.exe
PID 3700 wrote to memory of 2572	3700	amers.exe	axplons.exe
PID 1204 wrote to memory of 4576	1204	explorku.exe	d376610349.exe
PID 1204 wrote to memory of 4576	1204	explorku.exe	d376610349.exe
PID 1204 wrote to memory of 4576	1204	explorku.exe	d376610349.exe
PID 1204 wrote to memory of 5068	1204	explorku.exe	c12ff32a34.exe
PID 1204 wrote to memory of 5068	1204	explorku.exe	c12ff32a34.exe
PID 1204 wrote to memory of 5068	1204	explorku.exe	c12ff32a34.exe

C:\Users\Admin\AppData\Local\Temp\35c8b0b91dbdad7fc19353e1c6f5120f2fa26b8b631e1b3663f1015187c77de0.exe
"C:\Users\Admin\AppData\Local\Temp\35c8b0b91dbdad7fc19353e1c6f5120f2fa26b8b631e1b3663f1015187c77de0.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Drops file in Windows directory
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2720

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
- Executes dropped EXE
- Adds Run key to start application
- Checks whether UAC is enabled
- Suspicious use of WriteProcessMemory
PID:1204

C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe
"C:\Users\Admin\AppData\Local\Temp\908f070dff\explorku.exe"
3⤵
PID:4916

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
- 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:3700

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:2572

C:\Users\Admin\AppData\Local\Temp\1000014001\d376610349.exe
"C:\Users\Admin\AppData\Local\Temp\1000014001\d376610349.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:4576

C:\Users\Admin\1000017002\c12ff32a34.exe
"C:\Users\Admin\1000017002\c12ff32a34.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:5068

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:4868

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:3696

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:2644

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:1940

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

3

Virtualization/Sandbox Evasion

2