amadey | 033f918f491b1e0c4a20deed3227013ddc9faad078aae3d2f043062db0dbe158

Virtualization/Sandbox Evasion

Processes:

explortu.exeaxplont.exeexplortu.exeaxplont.exeexplortu.exe033f918f491b1e0c4a20deed3227013ddc9faad078aae3d2f043062db0dbe158.exe6c77988223.exe6ef7b88bbf.exeaxplont.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explortu.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	axplont.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explortu.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	axplont.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	explortu.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	033f918f491b1e0c4a20deed3227013ddc9faad078aae3d2f043062db0dbe158.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	6c77988223.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	6ef7b88bbf.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	axplont.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

T1082

Processes:

axplont.exeexplortu.exe6c77988223.exeexplortu.exe033f918f491b1e0c4a20deed3227013ddc9faad078aae3d2f043062db0dbe158.exe6ef7b88bbf.exeaxplont.exeexplortu.exeaxplont.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	axplont.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explortu.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explortu.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	6c77988223.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explortu.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	033f918f491b1e0c4a20deed3227013ddc9faad078aae3d2f043062db0dbe158.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	6ef7b88bbf.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explortu.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	axplont.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	6ef7b88bbf.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	axplont.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	explortu.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	explortu.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	axplont.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	033f918f491b1e0c4a20deed3227013ddc9faad078aae3d2f043062db0dbe158.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	6c77988223.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	axplont.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	axplont.exe

Executes dropped EXE 8 IoCs

Processes:

explortu.exe6c77988223.exeaxplont.exe6ef7b88bbf.exeaxplont.exeexplortu.exeaxplont.exeexplortu.exe

pid process

4852 explortu.exe
1684 6c77988223.exe
1712 axplont.exe
3460 6ef7b88bbf.exe
2320 axplont.exe
1596 explortu.exe
4928 axplont.exe
2992 explortu.exe

pid	process
4852	explortu.exe
1684	6c77988223.exe
1712	axplont.exe
3460	6ef7b88bbf.exe
2320	axplont.exe
1596	explortu.exe
4928	axplont.exe
2992	explortu.exe

Identifies Wine through registry keys 2 TTPs 8 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:

explortu.exe033f918f491b1e0c4a20deed3227013ddc9faad078aae3d2f043062db0dbe158.exeexplortu.exe6c77988223.exeaxplont.exeaxplont.exeexplortu.exeaxplont.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\Software\Wine	explortu.exe
Key opened	\REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\Software\Wine	033f918f491b1e0c4a20deed3227013ddc9faad078aae3d2f043062db0dbe158.exe
Key opened	\REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\Software\Wine	explortu.exe
Key opened	\REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\Software\Wine	6c77988223.exe
Key opened	\REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\Software\Wine	axplont.exe
Key opened	\REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\Software\Wine	axplont.exe
Key opened	\REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\Software\Wine	explortu.exe
Key opened	\REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\Software\Wine	axplont.exe

Themida packer 10 IoCs

Detects Themida, an advanced Windows software protection system.

themida

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\1000005001\6ef7b88bbf.exe	themida
behavioral2/memory/3460-73-0x0000000000CF0000-0x0000000001364000-memory.dmp	themida
behavioral2/memory/3460-72-0x0000000000CF0000-0x0000000001364000-memory.dmp	themida
behavioral2/memory/3460-75-0x0000000000CF0000-0x0000000001364000-memory.dmp	themida
behavioral2/memory/3460-74-0x0000000000CF0000-0x0000000001364000-memory.dmp	themida
behavioral2/memory/3460-79-0x0000000000CF0000-0x0000000001364000-memory.dmp	themida
behavioral2/memory/3460-78-0x0000000000CF0000-0x0000000001364000-memory.dmp	themida
behavioral2/memory/3460-76-0x0000000000CF0000-0x0000000001364000-memory.dmp	themida
behavioral2/memory/3460-77-0x0000000000CF0000-0x0000000001364000-memory.dmp	themida
behavioral2/memory/3460-84-0x0000000000CF0000-0x0000000001364000-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:

explortu.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1474490143-3221292397-4168103503-1000\Software\Microsoft\Windows\CurrentVersion\Run\6ef7b88bbf.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\1000005001\\6ef7b88bbf.exe"	explortu.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

6ef7b88bbf.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 6ef7b88bbf.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	6ef7b88bbf.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 8 IoCs

Processes:

033f918f491b1e0c4a20deed3227013ddc9faad078aae3d2f043062db0dbe158.exeexplortu.exe6c77988223.exeaxplont.exeaxplont.exeexplortu.exeaxplont.exeexplortu.exe

pid	process
948	033f918f491b1e0c4a20deed3227013ddc9faad078aae3d2f043062db0dbe158.exe
4852	explortu.exe
1684	6c77988223.exe
1712	axplont.exe
2320	axplont.exe
1596	explortu.exe
4928	axplont.exe
2992	explortu.exe

Drops file in Windows directory 2 IoCs

Processes:

033f918f491b1e0c4a20deed3227013ddc9faad078aae3d2f043062db0dbe158.exe6c77988223.exe

description	ioc	process
File created	C:\Windows\Tasks\explortu.job	033f918f491b1e0c4a20deed3227013ddc9faad078aae3d2f043062db0dbe158.exe
File created	C:\Windows\Tasks\axplont.job	6c77988223.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 16 IoCs

Processes:

033f918f491b1e0c4a20deed3227013ddc9faad078aae3d2f043062db0dbe158.exeexplortu.exe6c77988223.exeaxplont.exeaxplont.exeexplortu.exeaxplont.exeexplortu.exe

pid	process
948	033f918f491b1e0c4a20deed3227013ddc9faad078aae3d2f043062db0dbe158.exe
948	033f918f491b1e0c4a20deed3227013ddc9faad078aae3d2f043062db0dbe158.exe
4852	explortu.exe
4852	explortu.exe
1684	6c77988223.exe
1684	6c77988223.exe
1712	axplont.exe
1712	axplont.exe
2320	axplont.exe
2320	axplont.exe
1596	explortu.exe
1596	explortu.exe
4928	axplont.exe
4928	axplont.exe
2992	explortu.exe
2992	explortu.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

033f918f491b1e0c4a20deed3227013ddc9faad078aae3d2f043062db0dbe158.exeexplortu.exe6c77988223.exe

description	pid	process	target process
PID 948 wrote to memory of 4852	948	033f918f491b1e0c4a20deed3227013ddc9faad078aae3d2f043062db0dbe158.exe	explortu.exe
PID 948 wrote to memory of 4852	948	033f918f491b1e0c4a20deed3227013ddc9faad078aae3d2f043062db0dbe158.exe	explortu.exe
PID 948 wrote to memory of 4852	948	033f918f491b1e0c4a20deed3227013ddc9faad078aae3d2f043062db0dbe158.exe	explortu.exe
PID 4852 wrote to memory of 1800	4852	explortu.exe	explortu.exe
PID 4852 wrote to memory of 1800	4852	explortu.exe	explortu.exe
PID 4852 wrote to memory of 1800	4852	explortu.exe	explortu.exe
PID 4852 wrote to memory of 1684	4852	explortu.exe	6c77988223.exe
PID 4852 wrote to memory of 1684	4852	explortu.exe	6c77988223.exe
PID 4852 wrote to memory of 1684	4852	explortu.exe	6c77988223.exe
PID 1684 wrote to memory of 1712	1684	6c77988223.exe	axplont.exe
PID 1684 wrote to memory of 1712	1684	6c77988223.exe	axplont.exe
PID 1684 wrote to memory of 1712	1684	6c77988223.exe	axplont.exe
PID 4852 wrote to memory of 3460	4852	explortu.exe	6ef7b88bbf.exe
PID 4852 wrote to memory of 3460	4852	explortu.exe	6ef7b88bbf.exe
PID 4852 wrote to memory of 3460	4852	explortu.exe	6ef7b88bbf.exe

C:\Users\Admin\AppData\Local\Temp\033f918f491b1e0c4a20deed3227013ddc9faad078aae3d2f043062db0dbe158.exe
"C:\Users\Admin\AppData\Local\Temp\033f918f491b1e0c4a20deed3227013ddc9faad078aae3d2f043062db0dbe158.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:948

C:\Users\Admin\AppData\Local\Temp\9217037dc9\explortu.exe
"C:\Users\Admin\AppData\Local\Temp\9217037dc9\explortu.exe"
2⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Identifies Wine through registry keys
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4852

C:\Users\Admin\AppData\Local\Temp\9217037dc9\explortu.exe
"C:\Users\Admin\AppData\Local\Temp\9217037dc9\explortu.exe"
3⤵
PID:1800

C:\Users\Admin\1000004002\6c77988223.exe
"C:\Users\Admin\1000004002\6c77988223.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:1684

C:\Users\Admin\AppData\Local\Temp\1b29d73536\axplont.exe
"C:\Users\Admin\AppData\Local\Temp\1b29d73536\axplont.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:1712

C:\Users\Admin\AppData\Local\Temp\1000005001\6ef7b88bbf.exe
"C:\Users\Admin\AppData\Local\Temp\1000005001\6ef7b88bbf.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:3460

C:\Users\Admin\AppData\Local\Temp\1b29d73536\axplont.exe
C:\Users\Admin\AppData\Local\Temp\1b29d73536\axplont.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:2320

C:\Users\Admin\AppData\Local\Temp\9217037dc9\explortu.exe
C:\Users\Admin\AppData\Local\Temp\9217037dc9\explortu.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:1596

C:\Users\Admin\AppData\Local\Temp\1b29d73536\axplont.exe
C:\Users\Admin\AppData\Local\Temp\1b29d73536\axplont.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:4928

C:\Users\Admin\AppData\Local\Temp\9217037dc9\explortu.exe
C:\Users\Admin\AppData\Local\Temp\9217037dc9\explortu.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:2992

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