c24ab1c89e1f391f8c0393bd26701946a6636dff772df867aff644159764e278

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions	RIDDHH0J.EXE.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions	svchost.exe

Looks for VMWare Tools registry key 2 TTPs 2 IoCs

evasion

Query Registry

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\VMware, Inc.\VMware Tools	RIDDHH0J.EXE.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\VMware, Inc.\VMware Tools	svchost.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\SystemBiosVersion	RIDDHH0J.EXE.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	RIDDHH0J.EXE.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	svchost.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-1-5-21-1498570331-2313266200-788959944-1000\Control Panel\International\Geo\Nation	RIDDHH0J.EXE.exe

Executes dropped EXE 1 IoCs

pid	Process
3716	svchost.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1498570331-2313266200-788959944-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "\"C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe\""	RIDDHH0J.EXE.exe

Maps connected drives based on registry 3 TTPs 4 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	svchost.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	RIDDHH0J.EXE.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	RIDDHH0J.EXE.exe

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

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

T1053

pid	Process
3772	schtasks.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
4060	timeout.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

pid	Process
4764	RIDDHH0J.EXE.exe
4764	RIDDHH0J.EXE.exe
4764	RIDDHH0J.EXE.exe
4764	RIDDHH0J.EXE.exe
4764	RIDDHH0J.EXE.exe
4764	RIDDHH0J.EXE.exe
4764	RIDDHH0J.EXE.exe
4764	RIDDHH0J.EXE.exe
4764	RIDDHH0J.EXE.exe
4764	RIDDHH0J.EXE.exe
4764	RIDDHH0J.EXE.exe
4764	RIDDHH0J.EXE.exe
4764	RIDDHH0J.EXE.exe
4764	RIDDHH0J.EXE.exe
4764	RIDDHH0J.EXE.exe
4764	RIDDHH0J.EXE.exe
4764	RIDDHH0J.EXE.exe
4764	RIDDHH0J.EXE.exe
4764	RIDDHH0J.EXE.exe
4764	RIDDHH0J.EXE.exe
4764	RIDDHH0J.EXE.exe
4764	RIDDHH0J.EXE.exe
4764	RIDDHH0J.EXE.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
672	Process not Found

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4764	RIDDHH0J.EXE.exe
Token: SeDebugPrivilege	3716	svchost.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4764 wrote to memory of 2264	4764	RIDDHH0J.EXE.exe	86
PID 4764 wrote to memory of 2264	4764	RIDDHH0J.EXE.exe	86
PID 4764 wrote to memory of 3360	4764	RIDDHH0J.EXE.exe	88
PID 4764 wrote to memory of 3360	4764	RIDDHH0J.EXE.exe	88
PID 2264 wrote to memory of 3772	2264	cmd.exe	90
PID 2264 wrote to memory of 3772	2264	cmd.exe	90
PID 3360 wrote to memory of 4060	3360	cmd.exe	91
PID 3360 wrote to memory of 4060	3360	cmd.exe	91
PID 3360 wrote to memory of 3716	3360	cmd.exe	95
PID 3360 wrote to memory of 3716	3360	cmd.exe	95

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\RIDDHH0J.EXE.exe
"C:\Users\Admin\AppData\Local\Temp\RIDDHH0J.EXE.exe"
1⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Checks computer location settings
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4764
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2264
- - C:\Windows\system32\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "svchost" /tr '"C:\Users\Admin\AppData\Roaming\svchost.exe"'
    3⤵
    - Creates scheduled task(s)
    PID:3772
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp1D18.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3360
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:4060
- - C:\Users\Admin\AppData\Roaming\svchost.exe
    "C:\Users\Admin\AppData\Roaming\svchost.exe"
    3⤵
    - Looks for VirtualBox Guest Additions in registry
    - Looks for VMWare Tools registry key
    - Checks BIOS information in registry
    - Executes dropped EXE
    - Maps connected drives based on registry
    - Suspicious use of AdjustPrivilegeToken
    PID:3716

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Virtualization/Sandbox Evasion

2

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

4

Virtualization/Sandbox Evasion

2