e440b9925643dfa36730a79eeada8392cf94192d003658aeb13abdff9db43e74

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Oracle\VirtualBox Guest Additions	6557c9e54b6b6a89d7eddc2fc10e5e27.exe

Downloads MZ/PE file

Executes dropped EXE 1 IoCs

pid	Process
4716	Discord.exe

Looks for VMWare Tools registry key 2 TTPs 1 IoCs

evasion

Query Registry

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\VMWare, Inc.\VMWare Tools	6557c9e54b6b6a89d7eddc2fc10e5e27.exe

VMProtect packed file 1 IoCs

Detects executables packed with VMProtect commercial packer.

vmprotect

resource	yara_rule
behavioral2/memory/4120-130-0x00000000007F0000-0x0000000000820000-memory.dmp	vmprotect

Checks BIOS information in registry 2 TTPs 1 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	6557c9e54b6b6a89d7eddc2fc10e5e27.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-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	6557c9e54b6b6a89d7eddc2fc10e5e27.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

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

Query Registry

Peripheral Device Discovery

T1120

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	6557c9e54b6b6a89d7eddc2fc10e5e27.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	6557c9e54b6b6a89d7eddc2fc10e5e27.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1468	4716	WerFault.exe	82

Checks SCSI registry key(s) 3 TTPs 1 IoCs

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

Query Registry

Peripheral Device Discovery

T1120

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_VMware_&Prod_VMware_Virtual_S	6557c9e54b6b6a89d7eddc2fc10e5e27.exe

Enumerates system info in registry 2 TTPs 4 IoCs

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosInformation	6557c9e54b6b6a89d7eddc2fc10e5e27.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemManufacturer	6557c9e54b6b6a89d7eddc2fc10e5e27.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemProductName	6557c9e54b6b6a89d7eddc2fc10e5e27.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Logical Unit Id 0	6557c9e54b6b6a89d7eddc2fc10e5e27.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4120	6557c9e54b6b6a89d7eddc2fc10e5e27.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4120 wrote to memory of 4716	4120	6557c9e54b6b6a89d7eddc2fc10e5e27.exe	82
PID 4120 wrote to memory of 4716	4120	6557c9e54b6b6a89d7eddc2fc10e5e27.exe	82

C:\Users\Admin\AppData\Local\Temp\6557c9e54b6b6a89d7eddc2fc10e5e27.exe
"C:\Users\Admin\AppData\Local\Temp\6557c9e54b6b6a89d7eddc2fc10e5e27.exe"
1⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Checks computer location settings
- Maps connected drives based on registry
- Checks SCSI registry key(s)
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4120
- C:\Users\Admin\AppData\Local\Discord.exe
  "C:\Users\Admin\AppData\Local\Discord.exe"
  2⤵
  - Executes dropped EXE
  PID:4716
- - C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -u -p 4716 -s 1120
    3⤵
    - Program crash
    PID:1468

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 444 -p 4716 -ip 4716
1⤵
PID:688

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

6

Virtualization/Sandbox Evasion

2