41ba98d2771eb959414721f1782c8eb852e8cba0e6b6d63a6573aa106b3a2304

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\PoMtDTSxSaWXDpMWPkdaoXwwo.vbs\""	WScript.exe

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	WScript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\PoMtDTSxSaWXDpMWPkdaoXwwo = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\PoMtDTSxSaWXDpMWPkdaoXwwo.vbs\""	WScript.exe

Blocklisted process makes network request 4 IoCs

flow	pid	Process
21	1308	WScript.exe
34	1308	WScript.exe
43	1308	WScript.exe
44	1308	WScript.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	WScript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	WScript.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\PoMtDTSxSaWXDpMWPkdaoXwwo = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\PoMtDTSxSaWXDpMWPkdaoXwwo.vbs\""	WScript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\PoMtDTSxSaWXDpMWPkdaoXwwo = "wscript.exe //B \"C:\\Users\\Admin\\AppData\\Roaming\\PoMtDTSxSaWXDpMWPkdaoXwwo.vbs\""	WScript.exe

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000_Classes\Local Settings	WScript.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

pid	Process
3980	schtasks.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3268 wrote to memory of 1308	3268	WScript.exe	83
PID 3268 wrote to memory of 1308	3268	WScript.exe	83
PID 1308 wrote to memory of 3980	1308	WScript.exe	90
PID 1308 wrote to memory of 3980	1308	WScript.exe	90

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:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\E-Post Label.vbs"
1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3268
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\PoMtDTSxSaWXDpMWPkdaoXwwo.vbs"
  2⤵
  - Modifies WinLogon for persistence
  - Adds policy Run key to start application
  - Blocklisted process makes network request
  - Checks computer location settings
  - Adds Run key to start application
  - Suspicious use of WriteProcessMemory
  PID:1308
- - C:\Windows\System32\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /sc ONLOGON /tn ChromeUpdate /tr "C:\Users\Admin\AppData\Roaming\PoMtDTSxSaWXDpMWPkdaoXwwo.vbs" /F
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:3980

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

Persistence

Boot or Logon Autostart Execution

3

T1547

Registry Run Keys / Startup Folder

Winlogon Helper DLL

T1547.004

Scheduled Task/Job

T1053

Scheduled Task

Privilege Escalation

Boot or Logon Autostart Execution

3

T1547

Registry Run Keys / Startup Folder

Winlogon Helper DLL

T1547.004

Scheduled Task/Job

T1053

Scheduled Task

Defense Evasion

Modify Registry

3

Credential Access

Discovery

Query Registry

T1012

System Information Discovery