3123af93014a5a5c49aa6fd2118f6805041af178c222be27e30b2fd477085c19

Bypass User Account Control

T1548.002

Disable or Modify Tools

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	752f5cc5a7b0f986286d09e8288c0958bc1b798477ca0d09dc2658c7ab109060.exe

Windows security bypass 2 TTPs 2 IoCs

Disable or Modify Tools

Modify Registry

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths	752f5cc5a7b0f986286d09e8288c0958bc1b798477ca0d09dc2658c7ab109060.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\1\752f5cc5a7b0f986286d09e8288c0958bc1b798477ca0d09dc2658c7ab109060.exe = "0"	752f5cc5a7b0f986286d09e8288c0958bc1b798477ca0d09dc2658c7ab109060.exe

Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
4504	powershell.exe

Windows security modification 2 TTPs 3 IoCs

Disable or Modify Tools

Modify Registry

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths	752f5cc5a7b0f986286d09e8288c0958bc1b798477ca0d09dc2658c7ab109060.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions	752f5cc5a7b0f986286d09e8288c0958bc1b798477ca0d09dc2658c7ab109060.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\1\752f5cc5a7b0f986286d09e8288c0958bc1b798477ca0d09dc2658c7ab109060.exe = "0"	752f5cc5a7b0f986286d09e8288c0958bc1b798477ca0d09dc2658c7ab109060.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4272559161-3282441186-401869126-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	regsvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-4272559161-3282441186-401869126-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	regsvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-4272559161-3282441186-401869126-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	regsvcs.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	752f5cc5a7b0f986286d09e8288c0958bc1b798477ca0d09dc2658c7ab109060.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	752f5cc5a7b0f986286d09e8288c0958bc1b798477ca0d09dc2658c7ab109060.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
1	checkip.dyndns.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5028 set thread context of 4608	5028	752f5cc5a7b0f986286d09e8288c0958bc1b798477ca0d09dc2658c7ab109060.exe	81

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3356	4608	WerFault.exe	81

System Location Discovery: System Language Discovery 1 TTPs 1 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	regsvcs.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4504	powershell.exe
4504	powershell.exe
4608	regsvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4504	powershell.exe
Token: SeDebugPrivilege	4608	regsvcs.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 5028 wrote to memory of 4504	5028	752f5cc5a7b0f986286d09e8288c0958bc1b798477ca0d09dc2658c7ab109060.exe	79
PID 5028 wrote to memory of 4504	5028	752f5cc5a7b0f986286d09e8288c0958bc1b798477ca0d09dc2658c7ab109060.exe	79
PID 5028 wrote to memory of 4608	5028	752f5cc5a7b0f986286d09e8288c0958bc1b798477ca0d09dc2658c7ab109060.exe	81
PID 5028 wrote to memory of 4608	5028	752f5cc5a7b0f986286d09e8288c0958bc1b798477ca0d09dc2658c7ab109060.exe	81
PID 5028 wrote to memory of 4608	5028	752f5cc5a7b0f986286d09e8288c0958bc1b798477ca0d09dc2658c7ab109060.exe	81
PID 5028 wrote to memory of 4608	5028	752f5cc5a7b0f986286d09e8288c0958bc1b798477ca0d09dc2658c7ab109060.exe	81
PID 5028 wrote to memory of 4608	5028	752f5cc5a7b0f986286d09e8288c0958bc1b798477ca0d09dc2658c7ab109060.exe	81
PID 5028 wrote to memory of 4608	5028	752f5cc5a7b0f986286d09e8288c0958bc1b798477ca0d09dc2658c7ab109060.exe	81
PID 5028 wrote to memory of 4608	5028	752f5cc5a7b0f986286d09e8288c0958bc1b798477ca0d09dc2658c7ab109060.exe	81
PID 5028 wrote to memory of 4608	5028	752f5cc5a7b0f986286d09e8288c0958bc1b798477ca0d09dc2658c7ab109060.exe	81
PID 5028 wrote to memory of 3860	5028	752f5cc5a7b0f986286d09e8288c0958bc1b798477ca0d09dc2658c7ab109060.exe	82
PID 5028 wrote to memory of 3860	5028	752f5cc5a7b0f986286d09e8288c0958bc1b798477ca0d09dc2658c7ab109060.exe	82
PID 5028 wrote to memory of 3860	5028	752f5cc5a7b0f986286d09e8288c0958bc1b798477ca0d09dc2658c7ab109060.exe	82

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	752f5cc5a7b0f986286d09e8288c0958bc1b798477ca0d09dc2658c7ab109060.exe

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4272559161-3282441186-401869126-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	regsvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4272559161-3282441186-401869126-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	regsvcs.exe

C:\Users\Admin\AppData\Local\Temp\1\752f5cc5a7b0f986286d09e8288c0958bc1b798477ca0d09dc2658c7ab109060.exe
"C:\Users\Admin\AppData\Local\Temp\1\752f5cc5a7b0f986286d09e8288c0958bc1b798477ca0d09dc2658c7ab109060.exe"
1⤵
- UAC bypass
- Windows security bypass
- Windows security modification
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
- System policy modification
PID:5028
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\1\752f5cc5a7b0f986286d09e8288c0958bc1b798477ca0d09dc2658c7ab109060.exe" -Force
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4504
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:4608
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4608 -s 1444
    3⤵
    - Program crash
    PID:3356
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe"
  2⤵
  PID:3860

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4608 -ip 4608
1⤵
PID:4768

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Impair Defenses

T1562

Disable or Modify Tools

Modify Registry