691aefc500ec346de36a806ad7bd8ca051f98798fe863f2b1b1860f5c4a19492

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation	8CAF.tmp

Executes dropped EXE 1 IoCs

pid	Process
2724	8CAF.tmp

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	691aefc500ec346de36a806ad7bd8ca051f98798fe863f2b1b1860f5c4a19492N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8CAF.tmp

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
2724	8CAF.tmp

Checks processor information in registry 2 TTPs 3 IoCs

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

Query Registry

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	WINWORD.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	WINWORD.EXE

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000_Classes\Local Settings	8CAF.tmp

Suspicious behavior: AddClipboardFormatListener 2 IoCs

pid	Process
3324	WINWORD.EXE
3324	WINWORD.EXE

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
2724	8CAF.tmp

Suspicious use of SetWindowsHookEx 5 IoCs

pid	Process
3324	WINWORD.EXE
3324	WINWORD.EXE
3324	WINWORD.EXE
3324	WINWORD.EXE
3324	WINWORD.EXE

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4952 wrote to memory of 2724	4952	691aefc500ec346de36a806ad7bd8ca051f98798fe863f2b1b1860f5c4a19492N.exe	82
PID 4952 wrote to memory of 2724	4952	691aefc500ec346de36a806ad7bd8ca051f98798fe863f2b1b1860f5c4a19492N.exe	82
PID 4952 wrote to memory of 2724	4952	691aefc500ec346de36a806ad7bd8ca051f98798fe863f2b1b1860f5c4a19492N.exe	82
PID 2724 wrote to memory of 3324	2724	8CAF.tmp	83
PID 2724 wrote to memory of 3324	2724	8CAF.tmp	83

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
Uses Volume Shadow Copy WMI provider
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\691aefc500ec346de36a806ad7bd8ca051f98798fe863f2b1b1860f5c4a19492N.exe
"C:\Users\Admin\AppData\Local\Temp\691aefc500ec346de36a806ad7bd8ca051f98798fe863f2b1b1860f5c4a19492N.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4952
- C:\Users\Admin\AppData\Local\Temp\8CAF.tmp
  "C:\Users\Admin\AppData\Local\Temp\8CAF.tmp" --pingC:\Users\Admin\AppData\Local\Temp\691aefc500ec346de36a806ad7bd8ca051f98798fe863f2b1b1860f5c4a19492N.exe EE9AF87FF159706C2543C35767A009B88BE08D610E5AEB5FABD16189CA5AD3A6BBF2959DBBBE570E7295BEE0ED86406C513C5296F937DE504F066DDC1B60D2E8
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Modifies registry class
  - Suspicious behavior: RenamesItself
  - Suspicious use of WriteProcessMemory
  PID:2724
- - C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\691aefc500ec346de36a806ad7bd8ca051f98798fe863f2b1b1860f5c4a19492N.docx" /o ""
    3⤵
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious behavior: AddClipboardFormatListener
    - Suspicious use of SetWindowsHookEx
    PID:3324

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

4

System Information Discovery

4

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery