allcome | be1bc698d63cbfc97d75edaa1fe850772d1e082a7b9a24aa5e09ed5b3bdeedde

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	MoUSO.exe

Executes dropped EXE 1 IoCs

pid	Process
4628	MoUSO.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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	MoUSO.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	MoUSO.exe

Checks computer location settings 2 TTPs 1 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-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe

Themida packer 8 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral3/memory/1816-134-0x0000000000B50000-0x000000000146E000-memory.dmp	themida
behavioral3/memory/1816-135-0x0000000000B50000-0x000000000146E000-memory.dmp	themida
behavioral3/memory/1816-145-0x0000000000B50000-0x000000000146E000-memory.dmp	themida
behavioral3/memory/4852-150-0x0000000000B50000-0x000000000146E000-memory.dmp	themida
behavioral3/files/0x0007000000023167-151.dat	themida
behavioral3/files/0x0007000000023167-152.dat	themida
behavioral3/memory/4628-155-0x00000000000F0000-0x0000000000A0E000-memory.dmp	themida
behavioral3/memory/4628-156-0x00000000000F0000-0x0000000000A0E000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	MoUSO.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1816 set thread context of 4852	1816	2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe	89

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

pid	Process
3844	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1816	2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe
1816	2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe
1816	2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe
4628	MoUSO.exe
4628	MoUSO.exe
4628	MoUSO.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1816	2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe
Token: SeDebugPrivilege	4628	MoUSO.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1816 wrote to memory of 4852	1816	2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe	89
PID 1816 wrote to memory of 4852	1816	2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe	89
PID 1816 wrote to memory of 4852	1816	2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe	89
PID 1816 wrote to memory of 4852	1816	2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe	89
PID 1816 wrote to memory of 4852	1816	2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe	89
PID 1816 wrote to memory of 4852	1816	2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe	89
PID 1816 wrote to memory of 4852	1816	2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe	89
PID 1816 wrote to memory of 4852	1816	2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe	89
PID 1816 wrote to memory of 4852	1816	2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe	89
PID 1816 wrote to memory of 4852	1816	2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe	89
PID 4852 wrote to memory of 3844	4852	2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe	90
PID 4852 wrote to memory of 3844	4852	2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe	90
PID 4852 wrote to memory of 3844	4852	2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe	90

C:\Users\Admin\AppData\Local\Temp\2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe
"C:\Users\Admin\AppData\Local\Temp\2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1816
- C:\Users\Admin\AppData\Local\Temp\2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe
  "C:\Users\Admin\AppData\Local\Temp\2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of WriteProcessMemory
  PID:4852
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /TN Cache-S-21-2946144819-3e21f723 /TR "C:\Users\Admin\AppData\Local\cache\MoUSO.exe"
    3⤵
    - Creates scheduled task(s)
    PID:3844

C:\Users\Admin\AppData\Local\cache\MoUSO.exe
C:\Users\Admin\AppData\Local\cache\MoUSO.exe
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Executes dropped EXE
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4628

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

Persistence

Scheduled Task

Privilege Escalation

Scheduled Task

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

System Information Discovery