sheetrat | eb6c2f671dd83e206bba07b8d4abf6898f053798c3717dd2cb51978c22fd18e3

Windows Service

Disable or Modify Tools

T1562.001

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\DisableAntiSpyware = "1"	296fli5rjlcdumk2.exe

UAC bypass 3 TTPs 4 IoCs

defense_evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	296fli5rjlcdumk2.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	296fli5rjlcdumk2.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorUser = "0"	296fli5rjlcdumk2.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	296fli5rjlcdumk2.exe

Modifies Windows Firewall 2 TTPs 1 IoCs

defense_evasion

Windows Service

persistence privilege_escalation

Disable or Modify System Firewall

T1562.004

pid	Process
2468	netsh.exe

Creates new service(s) 2 TTPs
persistence execution

Windows Service
T1543.003

Service Execution
T1569.002
Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003
Stops running service(s) 4 TTPs
defense_evasion execution

Windows Service
T1543.003

Impair Defenses
T1562

Service Stop
T1489

Service Execution
T1569.002

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	296fli5rjlcdumk2.exe
Key opened	\REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	296fli5rjlcdumk2.exe
Key opened	\REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	296fli5rjlcdumk2.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Checks whether UAC is enabled 1 TTPs 2 IoCs

defense_evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	296fli5rjlcdumk2.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	296fli5rjlcdumk2.exe

Looks up external IP address via web service 2 IoCs

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

flow	ioc
1	ip-api.com
1	icanhazip.com

Launches sc.exe 3 IoCs

Sc.exe is a Windows utlilty to control services on the system.

pid	Process
5784	sc.exe
4140	sc.exe
3276	sc.exe

Event Triggered Execution: Netsh Helper DLL 1 TTPs 9 IoCs

Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

Netsh Helper DLL

T1546.007

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key opened	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe
Key value enumerated	\REGISTRY\MACHINE\SOFTWARE\Microsoft\NetSh	netsh.exe

Executes a command shell one-liner 1 TTPs 1 IoCs

Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

execution

Windows Command Shell

T1059.003

pid	Process
4720	cmd.exe

System Network Configuration Discovery: Wi-Fi Discovery 1 TTPs 1 IoCs

Adversaries may search for information about Wi-Fi networks, such as network names and passwords, on compromised systems.

discovery

Wi-Fi Discovery

T1016.002

pid	Process
3344	netsh.exe

Checks processor information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	296fli5rjlcdumk2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	296fli5rjlcdumk2.exe

Modifies data under HKEY_USERS 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\gogoduck	296fli5rjlcdumk2.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	296fli5rjlcdumk2.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 6 IoCs

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

persistence execution

Scheduled Task

pid	Process
2520	schtasks.exe
4452	schtasks.exe
5996	schtasks.exe
2788	schtasks.exe
3112	schtasks.exe
3188	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3156	296fli5rjlcdumk2.exe
3156	296fli5rjlcdumk2.exe
3156	296fli5rjlcdumk2.exe
3156	296fli5rjlcdumk2.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	3156	296fli5rjlcdumk2.exe
Token: SeDebugPrivilege	5708	296fli5rjlcdumk2.exe
Token: SeDebugPrivilege	3156	296fli5rjlcdumk2.exe
Token: SeDebugPrivilege	3156	296fli5rjlcdumk2.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 3156 wrote to memory of 4720	3156	296fli5rjlcdumk2.exe	90
PID 4720 wrote to memory of 2468	4720	cmd.exe	92
PID 3156 wrote to memory of 5784	3156	296fli5rjlcdumk2.exe	93
PID 3156 wrote to memory of 4140	3156	296fli5rjlcdumk2.exe	95
PID 3156 wrote to memory of 3276	3156	296fli5rjlcdumk2.exe	97
PID 3156 wrote to memory of 5560	3156	296fli5rjlcdumk2.exe	100
PID 3156 wrote to memory of 2788	3156	296fli5rjlcdumk2.exe	102
PID 3156 wrote to memory of 3980	3156	296fli5rjlcdumk2.exe	105
PID 3156 wrote to memory of 3112	3156	296fli5rjlcdumk2.exe	107
PID 3156 wrote to memory of 5980	3156	296fli5rjlcdumk2.exe	109
PID 3156 wrote to memory of 3188	3156	296fli5rjlcdumk2.exe	111
PID 3156 wrote to memory of 3332	3156	296fli5rjlcdumk2.exe	113
PID 3156 wrote to memory of 2520	3156	296fli5rjlcdumk2.exe	115
PID 3156 wrote to memory of 3320	3156	296fli5rjlcdumk2.exe	117
PID 3156 wrote to memory of 4452	3156	296fli5rjlcdumk2.exe	119
PID 3156 wrote to memory of 5480	3156	296fli5rjlcdumk2.exe	121
PID 3156 wrote to memory of 5996	3156	296fli5rjlcdumk2.exe	123
PID 3156 wrote to memory of 2420	3156	296fli5rjlcdumk2.exe	125
PID 3156 wrote to memory of 3344	3156	296fli5rjlcdumk2.exe	127

System policy modification 1 TTPs 6 IoCs

defense_evasion

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableUIADesktopToggle = "1"	296fli5rjlcdumk2.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	296fli5rjlcdumk2.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0"	296fli5rjlcdumk2.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorUser = "0"	296fli5rjlcdumk2.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0"	296fli5rjlcdumk2.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\FilterAdministratorToken = "0"	296fli5rjlcdumk2.exe

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

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	296fli5rjlcdumk2.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4046655672-1449839301-2197395821-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	296fli5rjlcdumk2.exe

C:\Users\Admin\AppData\Local\Temp\296fli5rjlcdumk2.exe
"C:\Users\Admin\AppData\Local\Temp\296fli5rjlcdumk2.exe"
1⤵
- Modifies Windows Defender DisableAntiSpyware settings
- UAC bypass
- Accesses Microsoft Outlook profiles
- Checks whether UAC is enabled
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
- outlook_office_path
- outlook_win_path
PID:3156
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /C netsh advfirewall firewall add rule name="QeFpSiX4SFvaSb" dir=in action=allow program="C:\Users\Admin\AppData\Local\Temp\296fli5rjlcdumk2.exe" enable=yes & exit
  2⤵
  - Executes a command shell one-liner
  - Suspicious use of WriteProcessMemory
  PID:4720
- - C:\Windows\system32\netsh.exe
    netsh advfirewall firewall add rule name="QeFpSiX4SFvaSb" dir=in action=allow program="C:\Users\Admin\AppData\Local\Temp\296fli5rjlcdumk2.exe" enable=yes
    3⤵
    - Modifies Windows Firewall
    - Event Triggered Execution: Netsh Helper DLL
    PID:2468
- C:\Windows\SYSTEM32\sc.exe
  "sc.exe" delete "WindowsUpdaterDefenderMicrosoft"
  2⤵
  - Launches sc.exe
  PID:5784
- C:\Windows\SYSTEM32\sc.exe
  "sc.exe" create "WindowsUpdaterDefenderMicrosoft" binPath= "C:\Users\Admin\AppData\Local\Temp\296fli5rjlcdumk2.exe" start= auto DisplayName= "WindowsUpdaterDefenderMicrosoft"
  2⤵
  - Launches sc.exe
  PID:4140
- C:\Windows\SYSTEM32\sc.exe
  "sc.exe" start "WindowsUpdaterDefenderMicrosoft"
  2⤵
  - Launches sc.exe
  PID:3276
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks.exe" /Delete /TN "GoogleUpdateTaskMachineCore_c00e1f71" /F
  2⤵
  PID:5560
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks.exe" /Create /TN "GoogleUpdateTaskMachineCore_c00e1f71" /XML "C:\Users\Admin\AppData\Local\Temp\e46fcbee-7d20-423c-8724-1f9e61118539.xml" /F
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2788
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks.exe" /Delete /TN "SystemSoundsService_f74f02ee" /F
  2⤵
  PID:3980
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks.exe" /Create /TN "SystemSoundsService_f74f02ee" /XML "C:\Users\Admin\AppData\Local\Temp\2b9a295c-f468-4db9-a464-e3fa2fa06d24.xml" /F
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:3112
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks.exe" /Delete /TN "OneDrive Standalone Update Task_604aa2bc" /F
  2⤵
  PID:5980
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks.exe" /Create /TN "OneDrive Standalone Update Task_604aa2bc" /XML "C:\Users\Admin\AppData\Local\Temp\f28dbcea-9c14-46f7-840e-886d2f075819.xml" /F
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:3188
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks.exe" /Delete /TN "GoogleUpdateTaskMachineCore_8e1e7b3b" /F
  2⤵
  PID:3332
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks.exe" /Create /TN "GoogleUpdateTaskMachineCore_8e1e7b3b" /XML "C:\Users\Admin\AppData\Local\Temp\5e90c9e0-2678-4b96-bb63-eb9ac2dbf465.xml" /F
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2520
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks.exe" /Delete /TN "Adobe Acrobat Update Task_5f9f5939" /F
  2⤵
  PID:3320
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks.exe" /Create /TN "Adobe Acrobat Update Task_5f9f5939" /XML "C:\Users\Admin\AppData\Local\Temp\f7acb57e-a1dc-4a73-8246-89a5b856fff2.xml" /F
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:4452
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks.exe" /Delete /TN "NvProfileUpdaterDaily_{B2FE1952-0186-46C3-BAEC-A80AA35AC5B8}_6bbb4026" /F
  2⤵
  PID:5480
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks.exe" /Create /TN "NvProfileUpdaterDaily_{B2FE1952-0186-46C3-BAEC-A80AA35AC5B8}_6bbb4026" /XML "C:\Users\Admin\AppData\Local\Temp\e6416c52-785a-4115-910f-2cdad3795fd9.xml" /F
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:5996
- C:\Windows\SYSTEM32\netsh.exe
  "netsh" wlan export profile key=clear folder="C:\Users\Admin\AppData\Local\Temp\IntelixWifiExport_9aa972375df64d00b3e098255f319462"
  2⤵
  - Event Triggered Execution: Netsh Helper DLL
  PID:2420
- C:\Windows\SYSTEM32\netsh.exe
  "netsh" wlan show profiles
  2⤵
  - Event Triggered Execution: Netsh Helper DLL
  - System Network Configuration Discovery: Wi-Fi Discovery
  PID:3344

C:\Users\Admin\AppData\Local\Temp\296fli5rjlcdumk2.exe
C:\Users\Admin\AppData\Local\Temp\296fli5rjlcdumk2.exe
1⤵
- Modifies data under HKEY_USERS
- Suspicious use of AdjustPrivilegeToken
PID:5708

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Windows Command Shell

T1059.003

Scheduled Task/Job

T1053

Scheduled Task

System Services

T1569

Service Execution

T1569.002

Persistence

Create or Modify System Process

T1543

Windows Service

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Scheduled Task/Job

T1053

Scheduled Task

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Create or Modify System Process

T1543

Windows Service

Event Triggered Execution

T1546

Netsh Helper DLL

T1546.007

Scheduled Task/Job

T1053

Scheduled Task

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Modify Registry