allcome | be1bc698d63cbfc97d75edaa1fe850772d1e082a7b9a24aa5e09ed5b3bdeedde

Virtualization/Sandbox Evasion

T1497

Processes:

2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exeMoUSO.exe

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

Processes:

MoUSO.exe

pid	Process
2916	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

Processes:

2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exeMoUSO.exe

description	ioc	Process
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
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	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

Processes:

2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe

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

Processes:

resource	yara_rule
behavioral3/memory/4896-134-0x0000000000B40000-0x000000000145E000-memory.dmp	themida
behavioral3/memory/4896-135-0x0000000000B40000-0x000000000145E000-memory.dmp	themida
behavioral3/memory/4896-145-0x0000000000B40000-0x000000000145E000-memory.dmp	themida
behavioral3/memory/3856-150-0x0000000000B40000-0x000000000145E000-memory.dmp	themida
behavioral3/files/0x00080000000223e7-151.dat	themida
behavioral3/files/0x00080000000223e7-152.dat	themida
behavioral3/memory/2916-155-0x0000000000070000-0x000000000098E000-memory.dmp	themida
behavioral3/memory/2916-156-0x0000000000070000-0x000000000098E000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

Processes:

MoUSO.exe2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe

description	pid	Process	procid_target
PID 4896 set thread context of 3856	4896	2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe	91

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

Processes:

schtasks.exe

pid	Process
2816	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exeMoUSO.exe

pid	Process
4896	2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe
4896	2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe
4896	2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe
2916	MoUSO.exe
2916	MoUSO.exe
2916	MoUSO.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exeMoUSO.exe

description	pid	Process
Token: SeDebugPrivilege	4896	2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe
Token: SeDebugPrivilege	2916	MoUSO.exe

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exeMoUSO.exe

description	pid	Process	procid_target
PID 4896 wrote to memory of 3856	4896	2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe	91
PID 4896 wrote to memory of 3856	4896	2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe	91
PID 4896 wrote to memory of 3856	4896	2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe	91
PID 4896 wrote to memory of 3856	4896	2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe	91
PID 4896 wrote to memory of 3856	4896	2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe	91
PID 4896 wrote to memory of 3856	4896	2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe	91
PID 4896 wrote to memory of 3856	4896	2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe	91
PID 4896 wrote to memory of 3856	4896	2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe	91
PID 4896 wrote to memory of 3856	4896	2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe	91
PID 4896 wrote to memory of 3856	4896	2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe	91
PID 3856 wrote to memory of 2816	3856	2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe	92
PID 3856 wrote to memory of 2816	3856	2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe	92
PID 3856 wrote to memory of 2816	3856	2d640e53d6e6d96266afb87c150403609c66d66ab1a5404c20efb13c85f9ae02.exe	92
PID 2916 wrote to memory of 5060	2916	MoUSO.exe	95
PID 2916 wrote to memory of 5060	2916	MoUSO.exe	95
PID 2916 wrote to memory of 5060	2916	MoUSO.exe	95
PID 2916 wrote to memory of 5060	2916	MoUSO.exe	95
PID 2916 wrote to memory of 5060	2916	MoUSO.exe	95
PID 2916 wrote to memory of 5060	2916	MoUSO.exe	95
PID 2916 wrote to memory of 5060	2916	MoUSO.exe	95
PID 2916 wrote to memory of 5060	2916	MoUSO.exe	95
PID 2916 wrote to memory of 5060	2916	MoUSO.exe	95
PID 2916 wrote to memory of 5060	2916	MoUSO.exe	95

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:4896
- 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:3856
- - 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:2816

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
- Suspicious use of WriteProcessMemory
PID:2916
- C:\Users\Admin\AppData\Local\cache\MoUSO.exe
  "C:\Users\Admin\AppData\Local\cache\MoUSO.exe"
  2⤵
  PID:5060

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