449adac1f0940043f26ab1a8b91748360b4d7d9759108d3db6669edd758129cb

Virtualization/Sandbox Evasion

T1497

Processes:

c5d71dbbbc50db8c2762835e83e0bd9c.exeUSOSharedDocuments-tupe3.1.7.5.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	c5d71dbbbc50db8c2762835e83e0bd9c.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	USOSharedDocuments-tupe3.1.7.5.exe

Checks BIOS information in registry 2 TTPs 4 IoCs

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

Query Registry

System Information Discovery

Processes:

c5d71dbbbc50db8c2762835e83e0bd9c.exeUSOSharedDocuments-tupe3.1.7.5.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	c5d71dbbbc50db8c2762835e83e0bd9c.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	c5d71dbbbc50db8c2762835e83e0bd9c.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	USOSharedDocuments-tupe3.1.7.5.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	USOSharedDocuments-tupe3.1.7.5.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

System Information Discovery

Processes:

c5d71dbbbc50db8c2762835e83e0bd9c.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Control Panel\International\Geo\Nation	c5d71dbbbc50db8c2762835e83e0bd9c.exe

Executes dropped EXE 1 IoCs

Processes:

USOSharedDocuments-tupe3.1.7.5.exe

pid process

2576 USOSharedDocuments-tupe3.1.7.5.exe

pid	process
2576	USOSharedDocuments-tupe3.1.7.5.exe

UPX packed file 11 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral2/memory/2656-134-0x00007FF7474B0000-0x00007FF747D41000-memory.dmp	upx
behavioral2/memory/2656-133-0x00007FF7474B0000-0x00007FF747D41000-memory.dmp	upx
behavioral2/memory/2656-135-0x00007FF7474B0000-0x00007FF747D41000-memory.dmp	upx
behavioral2/memory/2656-137-0x00007FF7474B0000-0x00007FF747D41000-memory.dmp	upx
C:\ProgramData\USOSharedDocuments-tupe3.1.7.5\USOSharedDocuments-tupe3.1.7.5.exe	upx
behavioral2/memory/2656-146-0x00007FF7474B0000-0x00007FF747D41000-memory.dmp	upx
C:\ProgramData\USOSharedDocuments-tupe3.1.7.5\USOSharedDocuments-tupe3.1.7.5.exe	upx
C:\ProgramData\USOSharedDocuments-tupe3.1.7.5\USOSharedDocuments-tupe3.1.7.5.exe	upx
behavioral2/memory/2576-148-0x00007FF6713F0000-0x00007FF671C81000-memory.dmp	upx
behavioral2/memory/2576-151-0x00007FF6713F0000-0x00007FF671C81000-memory.dmp	upx
behavioral2/memory/2576-152-0x00007FF6713F0000-0x00007FF671C81000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

c5d71dbbbc50db8c2762835e83e0bd9c.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	c5d71dbbbc50db8c2762835e83e0bd9c.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\USOSharedDocuments-tupe3.1.7.5 = "C:\\ProgramData\\USOSharedDocuments-tupe3.1.7.5\\USOSharedDocuments-tupe3.1.7.5.exe"	c5d71dbbbc50db8c2762835e83e0bd9c.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

Processes:

c5d71dbbbc50db8c2762835e83e0bd9c.exeUSOSharedDocuments-tupe3.1.7.5.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	c5d71dbbbc50db8c2762835e83e0bd9c.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	USOSharedDocuments-tupe3.1.7.5.exe

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

c5d71dbbbc50db8c2762835e83e0bd9c.exe

description	pid	process	target process
PID 2656 wrote to memory of 2576	2656	c5d71dbbbc50db8c2762835e83e0bd9c.exe	USOSharedDocuments-tupe3.1.7.5.exe
PID 2656 wrote to memory of 2576	2656	c5d71dbbbc50db8c2762835e83e0bd9c.exe	USOSharedDocuments-tupe3.1.7.5.exe

C:\Users\Admin\AppData\Local\Temp\c5d71dbbbc50db8c2762835e83e0bd9c.exe
"C:\Users\Admin\AppData\Local\Temp\c5d71dbbbc50db8c2762835e83e0bd9c.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks computer location settings
- Adds Run key to start application
- Checks whether UAC is enabled
- Suspicious use of WriteProcessMemory
PID:2656

C:\ProgramData\USOSharedDocuments-tupe3.1.7.5\USOSharedDocuments-tupe3.1.7.5.exe
"C:\ProgramData\USOSharedDocuments-tupe3.1.7.5\USOSharedDocuments-tupe3.1.7.5.exe"
2⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Checks whether UAC is enabled
PID:2576

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Modify Registry

T1112

Credential Access

Discovery

Query Registry

3

Virtualization/Sandbox Evasion

T1497

System Information Discovery

4