d3a50abae9ab782b293d7e06c7cd518bbcec16df867f2bdcc106dec1e75dc80b

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1904519900-954640453-4250331663-1000\Control Panel\International\Geo\Nation	d3a50abae9ab782b293d7e06c7cd518bbcec16df867f2bdcc106dec1e75dc80b.exe
Key value queried	\REGISTRY\USER\S-1-5-21-1904519900-954640453-4250331663-1000\Control Panel\International\Geo\Nation	apple.exe

Executes dropped EXE 3 IoCs

pid	Process
2212	apple.exe
4180	siteadv.exe
4488	siteadv.exe

Loads dropped DLL 3 IoCs

pid	Process
4180	siteadv.exe
4488	siteadv.exe
4488	siteadv.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1904519900-954640453-4250331663-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\MediaLoader = "C:\\Users\\Admin\\Wmi Player\\siteadv.exe run cc.tmp"	siteadv.exe

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

System Information Discovery
T1082

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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	WINWORD.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	WINWORD.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	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-1-5-21-1904519900-954640453-4250331663-1000_Classes\Local Settings	d3a50abae9ab782b293d7e06c7cd518bbcec16df867f2bdcc106dec1e75dc80b.exe

Suspicious behavior: AddClipboardFormatListener 2 IoCs

pid	Process
1916	WINWORD.EXE
1916	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4180	siteadv.exe
4180	siteadv.exe

Suspicious use of SetWindowsHookEx 9 IoCs

pid	Process
1916	WINWORD.EXE
1916	WINWORD.EXE
1916	WINWORD.EXE
1916	WINWORD.EXE
1916	WINWORD.EXE
1916	WINWORD.EXE
1916	WINWORD.EXE
1916	WINWORD.EXE
1916	WINWORD.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3364 wrote to memory of 2212	3364	d3a50abae9ab782b293d7e06c7cd518bbcec16df867f2bdcc106dec1e75dc80b.exe	96
PID 3364 wrote to memory of 2212	3364	d3a50abae9ab782b293d7e06c7cd518bbcec16df867f2bdcc106dec1e75dc80b.exe	96
PID 3364 wrote to memory of 2212	3364	d3a50abae9ab782b293d7e06c7cd518bbcec16df867f2bdcc106dec1e75dc80b.exe	96
PID 3364 wrote to memory of 1916	3364	d3a50abae9ab782b293d7e06c7cd518bbcec16df867f2bdcc106dec1e75dc80b.exe	98
PID 3364 wrote to memory of 1916	3364	d3a50abae9ab782b293d7e06c7cd518bbcec16df867f2bdcc106dec1e75dc80b.exe	98
PID 2212 wrote to memory of 4180	2212	apple.exe	99
PID 2212 wrote to memory of 4180	2212	apple.exe	99
PID 2212 wrote to memory of 4180	2212	apple.exe	99
PID 4180 wrote to memory of 4488	4180	siteadv.exe	100
PID 4180 wrote to memory of 4488	4180	siteadv.exe	100
PID 4180 wrote to memory of 4488	4180	siteadv.exe	100

C:\Users\Admin\AppData\Local\Temp\d3a50abae9ab782b293d7e06c7cd518bbcec16df867f2bdcc106dec1e75dc80b.exe
"C:\Users\Admin\AppData\Local\Temp\d3a50abae9ab782b293d7e06c7cd518bbcec16df867f2bdcc106dec1e75dc80b.exe"
1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3364
- C:\Users\Admin\AppData\Roaming\apple.exe
  "C:\Users\Admin\AppData\Roaming\apple.exe"
  2⤵
  - Checks computer location settings
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:2212
- - C:\Users\Admin\Wmi Player\siteadv.exe
    "C:\Users\Admin\Wmi Player\siteadv.exe" stat cc.tmp
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:4180
  - - C:\Users\Admin\Wmi Player\siteadv.exe
      "C:\Users\Admin\Wmi Player\siteadv.exe" install_del cc.tmp C:\Users\Admin\AppData\Roaming\apple.exe
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Adds Run key to start application
      PID:4488
- C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
  "C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Roaming\0417.doc" /o ""
  2⤵
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious use of SetWindowsHookEx
  PID:1916

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4416 --field-trial-handle=2972,i,4036376905309803364,5412922217215781933,262144 --variations-seed-version /prefetch:8
1⤵
PID:3964

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

3

System Information Discovery

4