nanocore | 655cd79af38fdded007a8226af55dcb70aa345a77333775814c592365ae431ed

Windows Service

Disable or Modify Tools

T1562.001

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

Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware defense_evasion impact execution

File Deletion
T1070.004

Inhibit System Recovery
T1490

Windows Management Instrumentation
T1047
Grants admin privileges 1 TTPs
Uses net.exe to modify the user's privileges.

Account Manipulation
T1098

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
4244	powershell.exe

Disables RegEdit via registry modification 1 IoCs

defense_evasion

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-552508041-2681165170-3229858294-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1"	fitzi.io_nano.exe

Disables Task Manager via registry modification
defense_evasion

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\drivers\etc\hosts	fitzi.io_nano.exe

Event Triggered Execution: Image File Execution Options Injection 1 TTPs 6 IoCs

persistence

Image File Execution Options Injection

T1546.012

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\taskmgr.exe\Debugger = "C:\\Users\\Admin\\AppData\\Local\\Temp\\fitzi.io_nano.exe"	fitzi.io_nano.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\regedit.exe	fitzi.io_nano.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\regedit.exe\Debugger = "C:\\Users\\Admin\\AppData\\Local\\Temp\\fitzi.io_nano.exe"	fitzi.io_nano.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msconfig.exe	fitzi.io_nano.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msconfig.exe\Debugger = "C:\\Users\\Admin\\AppData\\Local\\Temp\\fitzi.io_nano.exe"	fitzi.io_nano.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\taskmgr.exe	fitzi.io_nano.exe

Modifies Windows Firewall 2 TTPs 1 IoCs

defense_evasion

Windows Service

persistence privilege_escalation

Disable or Modify System Firewall

T1562.004

pid	Process
3608	netsh.exe

Creates a file in the Startup directory 1 TTPs 2 IoCs

A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.

Registry Run Keys / Startup Folder

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SysUpdate.exe	fitzi.io_nano.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\system.bat	fitzi.io_nano.exe

Disables service(s) 3 TTPs
defense_evasion execution

Windows Service
T1543.003

Service Stop
T1489

Service Execution
T1569.002
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

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-552508041-2681165170-3229858294-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\fitzi.io_nano.exe"	fitzi.io_nano.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\SysUpdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\fitzi.io_nano.exe"	fitzi.io_nano.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\Malware = "C:\\Users\\Admin\\AppData\\Local\\Temp\\fitzi.io_nano.exe"	fitzi.io_nano.exe

Creates a new local user account 1 TTPs 2 IoCs

Uses net.exe to create a new local user account, often for persistence or a backdoor account.

persistence

Local Account

T1136.001

pid	Process
2324	net.exe
3904	net1.exe

Discovers running processes 1 TTPs 1 IoCs

Running process information can be used to identify security tools or plan follow-on actions.

discovery

Process Discovery

T1057

pid	Process
2040	tasklist.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\system32\svchost.exe	fitzi.io_nano.exe
File created	C:\Windows\system32\sysupdate.exe	fitzi.io_nano.exe
File opened for modification	C:\Windows\system32\sysupdate.exe	fitzi.io_nano.exe
File opened for modification	C:\Windows\system32\kernel32.dll	fitzi.io_nano.exe
File opened for modification	C:\Windows\system32\ntdll.dll	fitzi.io_nano.exe
File opened for modification	C:\Windows\system32\user32.dll	fitzi.io_nano.exe

Executes a VBScript file via the Windows Script Host. 1 TTPs 1 IoCs

execution

Visual Basic

T1059.005

pid	Process
2580	wscript.exe

Sets desktop wallpaper using registry 2 TTPs 2 IoCs

ransomware

Defacement

T1491

Modify Registry

persistence privilege_escalation

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-552508041-2681165170-3229858294-1000\Control Panel\Desktop\Wallpaper = "C:\\ProgramData\\SysUpdate\\wall.bmp"	fitzi.io_nano.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-552508041-2681165170-3229858294-1000\Control Panel\Desktop\Wallpaper = "C:\\Users\\Admin\\AppData\\Local\\Temp\\wallpaper.bmp"	fitzi.io_nano.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1856	fitzi.io_nano.exe

Launches sc.exe 28 IoCs

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

pid	Process
880	sc.exe
3476	sc.exe
360	sc.exe
2160	sc.exe
4364	sc.exe
1084	sc.exe
5344	sc.exe
948	sc.exe
976	sc.exe
3596	sc.exe
1140	sc.exe
5644	sc.exe
2536	sc.exe
5904	sc.exe
3000	sc.exe
1276	sc.exe
5212	sc.exe
4536	sc.exe
4116	sc.exe
5556	sc.exe
4956	sc.exe
5828	sc.exe
3292	sc.exe
1300	sc.exe
5040	sc.exe
2752	sc.exe
4144	sc.exe
260	sc.exe

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

Event Triggered Execution: Netsh Helper DLL 1 TTPs 6 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 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 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

Executes a command shell one-liner 1 TTPs 6 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
1944	cmd.exe
1624	cmd.exe
5192	cmd.exe
1592	cmd.exe
1792	cmd.exe
404	cmd.exe

Permission Groups Discovery: Local Groups 1 TTPs
Attempt to find local system groups and permission settings.
discovery

Local Groups
T1069.001

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
1912	netsh.exe

Gathers network information 2 TTPs 2 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
1272	ipconfig.exe
6108	NETSTAT.EXE

Gathers system information 1 TTPs 1 IoCs

Runs systeminfo.exe.

System Information Discovery

T1082

pid	Process
2528	systeminfo.exe

Interacts with shadow copies 3 TTPs 2 IoCs

Shadow copies are often targeted by ransomware to inhibit system recovery.

ransomware

File Deletion

T1070.004

Inhibit System Recovery

T1490

Direct Volume Access

T1006

pid	Process
3608	vssadmin.exe
6104	vssadmin.exe

Modifies Control Panel 1 IoCs

defense_evasion

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-552508041-2681165170-3229858294-1000\Control Panel\Desktop\WallpaperStyle = "2"	fitzi.io_nano.exe

Modifies registry class 16 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PDFBotnet	fitzi.io_nano.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PDFBotnet\shell	fitzi.io_nano.exe
Key created	\REGISTRY\USER\S-1-5-21-552508041-2681165170-3229858294-1000_Classes\ms-settings\shell\open\command	fitzi.io_nano.exe
Key created	\REGISTRY\USER\S-1-5-21-552508041-2681165170-3229858294-1000_Classes\ms-settings	fitzi.io_nano.exe
Key deleted	\REGISTRY\USER\S-1-5-21-552508041-2681165170-3229858294-1000_Classes\ms-settings\shell\open\command	fitzi.io_nano.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.pdf\ = "PDFBotnet"	fitzi.io_nano.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PDFBotnet\shell\open\command	fitzi.io_nano.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\PDFBotnet\shell\open	fitzi.io_nano.exe
Key created	\REGISTRY\USER\S-1-5-21-552508041-2681165170-3229858294-1000_Classes\ms-settings\shell	fitzi.io_nano.exe
Key created	\REGISTRY\USER\S-1-5-21-552508041-2681165170-3229858294-1000_Classes\ms-settings\shell\open	fitzi.io_nano.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-552508041-2681165170-3229858294-1000_Classes\ms-settings\shell\open\command\DelegateExecute	fitzi.io_nano.exe
Key deleted	\REGISTRY\USER\S-1-5-21-552508041-2681165170-3229858294-1000_Classes\ms-settings\shell	fitzi.io_nano.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-552508041-2681165170-3229858294-1000_Classes\ms-settings\shell\open\command\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\fitzi.io_nano.exe"	fitzi.io_nano.exe
Key deleted	\REGISTRY\USER\S-1-5-21-552508041-2681165170-3229858294-1000_Classes\ms-settings\shell\open	fitzi.io_nano.exe
Key deleted	\REGISTRY\USER\S-1-5-21-552508041-2681165170-3229858294-1000_Classes\ms-settings	fitzi.io_nano.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\PDFBotnet\shell\open\command\ = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\fitzi.io_nano.exe\" \"%1\""	fitzi.io_nano.exe

Runs net.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs

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

persistence execution

Scheduled Task

pid	Process
4428	schtasks.exe
4276	schtasks.exe
1920	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4244	powershell.exe
4244	powershell.exe
4244	powershell.exe
5376	WMIC.exe
5376	WMIC.exe
5376	WMIC.exe
5376	WMIC.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
3596	WMIC.exe
3596	WMIC.exe
3596	WMIC.exe
3596	WMIC.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe
1856	fitzi.io_nano.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1856	fitzi.io_nano.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4244	powershell.exe
Token: SeIncreaseQuotaPrivilege	5376	WMIC.exe
Token: SeSecurityPrivilege	5376	WMIC.exe
Token: SeTakeOwnershipPrivilege	5376	WMIC.exe
Token: SeLoadDriverPrivilege	5376	WMIC.exe
Token: SeSystemProfilePrivilege	5376	WMIC.exe
Token: SeSystemtimePrivilege	5376	WMIC.exe
Token: SeProfSingleProcessPrivilege	5376	WMIC.exe
Token: SeIncBasePriorityPrivilege	5376	WMIC.exe
Token: SeCreatePagefilePrivilege	5376	WMIC.exe
Token: SeBackupPrivilege	5376	WMIC.exe
Token: SeRestorePrivilege	5376	WMIC.exe
Token: SeShutdownPrivilege	5376	WMIC.exe
Token: SeDebugPrivilege	5376	WMIC.exe
Token: SeSystemEnvironmentPrivilege	5376	WMIC.exe
Token: SeRemoteShutdownPrivilege	5376	WMIC.exe
Token: SeUndockPrivilege	5376	WMIC.exe
Token: SeManageVolumePrivilege	5376	WMIC.exe
Token: 33	5376	WMIC.exe
Token: 34	5376	WMIC.exe
Token: 35	5376	WMIC.exe
Token: 36	5376	WMIC.exe
Token: SeIncreaseQuotaPrivilege	5376	WMIC.exe
Token: SeSecurityPrivilege	5376	WMIC.exe
Token: SeTakeOwnershipPrivilege	5376	WMIC.exe
Token: SeLoadDriverPrivilege	5376	WMIC.exe
Token: SeSystemProfilePrivilege	5376	WMIC.exe
Token: SeSystemtimePrivilege	5376	WMIC.exe
Token: SeProfSingleProcessPrivilege	5376	WMIC.exe
Token: SeIncBasePriorityPrivilege	5376	WMIC.exe
Token: SeCreatePagefilePrivilege	5376	WMIC.exe
Token: SeBackupPrivilege	5376	WMIC.exe
Token: SeRestorePrivilege	5376	WMIC.exe
Token: SeShutdownPrivilege	5376	WMIC.exe
Token: SeDebugPrivilege	5376	WMIC.exe
Token: SeSystemEnvironmentPrivilege	5376	WMIC.exe
Token: SeRemoteShutdownPrivilege	5376	WMIC.exe
Token: SeUndockPrivilege	5376	WMIC.exe
Token: SeManageVolumePrivilege	5376	WMIC.exe
Token: 33	5376	WMIC.exe
Token: 34	5376	WMIC.exe
Token: 35	5376	WMIC.exe
Token: 36	5376	WMIC.exe
Token: SeIncreaseQuotaPrivilege	4244	powershell.exe
Token: SeSecurityPrivilege	4244	powershell.exe
Token: SeTakeOwnershipPrivilege	4244	powershell.exe
Token: SeLoadDriverPrivilege	4244	powershell.exe
Token: SeSystemProfilePrivilege	4244	powershell.exe
Token: SeSystemtimePrivilege	4244	powershell.exe
Token: SeProfSingleProcessPrivilege	4244	powershell.exe
Token: SeIncBasePriorityPrivilege	4244	powershell.exe
Token: SeCreatePagefilePrivilege	4244	powershell.exe
Token: SeBackupPrivilege	4244	powershell.exe
Token: SeRestorePrivilege	4244	powershell.exe
Token: SeShutdownPrivilege	4244	powershell.exe
Token: SeDebugPrivilege	4244	powershell.exe
Token: SeSystemEnvironmentPrivilege	4244	powershell.exe
Token: SeRemoteShutdownPrivilege	4244	powershell.exe
Token: SeUndockPrivilege	4244	powershell.exe
Token: SeManageVolumePrivilege	4244	powershell.exe
Token: 33	4244	powershell.exe
Token: 34	4244	powershell.exe
Token: 35	4244	powershell.exe
Token: 36	4244	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1856	fitzi.io_nano.exe

Suspicious use of WriteProcessMemory 60 IoCs

description	pid	Process	procid_target
PID 1856 wrote to memory of 4244	1856	fitzi.io_nano.exe	89
PID 1856 wrote to memory of 4536	1856	fitzi.io_nano.exe	91
PID 1856 wrote to memory of 976	1856	fitzi.io_nano.exe	93
PID 1856 wrote to memory of 3596	1856	fitzi.io_nano.exe	180
PID 1856 wrote to memory of 2752	1856	fitzi.io_nano.exe	97
PID 1856 wrote to memory of 3476	1856	fitzi.io_nano.exe	98
PID 1856 wrote to memory of 4116	1856	fitzi.io_nano.exe	101
PID 1856 wrote to memory of 5040	1856	fitzi.io_nano.exe	103
PID 1856 wrote to memory of 360	1856	fitzi.io_nano.exe	105
PID 1856 wrote to memory of 1140	1856	fitzi.io_nano.exe	107
PID 1856 wrote to memory of 2160	1856	fitzi.io_nano.exe	109
PID 1856 wrote to memory of 4364	1856	fitzi.io_nano.exe	111
PID 1856 wrote to memory of 5828	1856	fitzi.io_nano.exe	113
PID 1856 wrote to memory of 5556	1856	fitzi.io_nano.exe	115
PID 1856 wrote to memory of 4956	1856	fitzi.io_nano.exe	117
PID 1856 wrote to memory of 5212	1856	fitzi.io_nano.exe	119
PID 1856 wrote to memory of 880	1856	fitzi.io_nano.exe	121
PID 1856 wrote to memory of 1276	1856	fitzi.io_nano.exe	123
PID 1856 wrote to memory of 3000	1856	fitzi.io_nano.exe	125
PID 1856 wrote to memory of 3292	1856	fitzi.io_nano.exe	127
PID 1856 wrote to memory of 5644	1856	fitzi.io_nano.exe	129
PID 1856 wrote to memory of 2536	1856	fitzi.io_nano.exe	131
PID 1856 wrote to memory of 5904	1856	fitzi.io_nano.exe	133
PID 1856 wrote to memory of 948	1856	fitzi.io_nano.exe	135
PID 1856 wrote to memory of 1084	1856	fitzi.io_nano.exe	137
PID 1856 wrote to memory of 4796	1856	fitzi.io_nano.exe	139
PID 1856 wrote to memory of 5344	1856	fitzi.io_nano.exe	140
PID 1856 wrote to memory of 1300	1856	fitzi.io_nano.exe	142
PID 4796 wrote to memory of 2652	4796	fodhelper.exe	144
PID 1856 wrote to memory of 3608	1856	fitzi.io_nano.exe	183
PID 1856 wrote to memory of 5376	1856	fitzi.io_nano.exe	147
PID 1856 wrote to memory of 1920	1856	fitzi.io_nano.exe	149
PID 1856 wrote to memory of 4428	1856	fitzi.io_nano.exe	152
PID 1856 wrote to memory of 5192	1856	fitzi.io_nano.exe	159
PID 1856 wrote to memory of 1592	1856	fitzi.io_nano.exe	161
PID 1856 wrote to memory of 1624	1856	fitzi.io_nano.exe	162
PID 1856 wrote to memory of 1944	1856	fitzi.io_nano.exe	163
PID 1856 wrote to memory of 404	1856	fitzi.io_nano.exe	164
PID 1856 wrote to memory of 1792	1856	fitzi.io_nano.exe	165
PID 1856 wrote to memory of 4276	1856	fitzi.io_nano.exe	166
PID 1856 wrote to memory of 2580	1856	fitzi.io_nano.exe	173
PID 5192 wrote to memory of 6104	5192	cmd.exe	174
PID 1624 wrote to memory of 2040	1624	cmd.exe	175
PID 1792 wrote to memory of 6108	1792	cmd.exe	176
PID 1592 wrote to memory of 2528	1592	cmd.exe	177
PID 404 wrote to memory of 1272	404	cmd.exe	178
PID 1944 wrote to memory of 3276	1944	cmd.exe	179
PID 5192 wrote to memory of 3596	5192	cmd.exe	180
PID 1856 wrote to memory of 5772	1856	fitzi.io_nano.exe	181
PID 1856 wrote to memory of 5628	1856	fitzi.io_nano.exe	182
PID 1856 wrote to memory of 3608	1856	fitzi.io_nano.exe	183
PID 1856 wrote to memory of 260	1856	fitzi.io_nano.exe	184
PID 1856 wrote to memory of 4144	1856	fitzi.io_nano.exe	185
PID 1856 wrote to memory of 2168	1856	fitzi.io_nano.exe	186
PID 1856 wrote to memory of 1912	1856	fitzi.io_nano.exe	187
PID 5628 wrote to memory of 1000	5628	net.exe	193
PID 1856 wrote to memory of 2324	1856	fitzi.io_nano.exe	194
PID 1856 wrote to memory of 2248	1856	fitzi.io_nano.exe	195
PID 2324 wrote to memory of 3904	2324	net.exe	198
PID 2248 wrote to memory of 3112	2248	net.exe	199

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

C:\Users\Admin\AppData\Local\Temp\fitzi.io_nano.exe
"C:\Users\Admin\AppData\Local\Temp\fitzi.io_nano.exe"
1⤵
- Modifies Windows Defender DisableAntiSpyware settings
- Disables RegEdit via registry modification
- Drops file in Drivers directory
- Event Triggered Execution: Image File Execution Options Injection
- Creates a file in the Startup directory
- Adds Run key to start application
- Drops file in System32 directory
- Sets desktop wallpaper using registry
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Modifies Control Panel
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1856
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NoP -NonI -W Hidden -Exec Bypass -Enc UwBlAHQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARABpAHMAYQBiAGwAZQBSAGUAYQBsAHQAaQBtAGUATQBvAG4AaQB0AG8AcgBpAG4AZwAgACQAdAByAHUAZQA7ACAAUwBlAHQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARABpAHMAYQBiAGwAZQBCAGUAaABhAHYAaQBvAHIATQBvAG4AaQB0AG8AcgBpAG4AZwAgACQAdAByAHUAZQA7ACAAQQBkAGQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgACIAQwA6AFwAUAByAG8AZwByAGEAbQBEAGEAdABhAFwAUwB5AHMAVQBwAGQAYQB0AGUAIgAgAC0ARgBvAHIAYwBlAA==
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4244
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop wscsvc
  2⤵
  - Launches sc.exe
  PID:4536
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" config wscsvc start= disabled
  2⤵
  - Launches sc.exe
  PID:976
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop SecurityHealthService
  2⤵
  - Launches sc.exe
  PID:3596
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" config SecurityHealthService start= disabled
  2⤵
  - Launches sc.exe
  PID:2752
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop WinDefend
  2⤵
  - Launches sc.exe
  PID:3476
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" config WinDefend start= disabled
  2⤵
  - Launches sc.exe
  PID:4116
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop MsMpSvc
  2⤵
  - Launches sc.exe
  PID:5040
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" config MsMpSvc start= disabled
  2⤵
  - Launches sc.exe
  PID:360
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop wuauserv
  2⤵
  - Launches sc.exe
  PID:1140
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" config wuauserv start= disabled
  2⤵
  - Launches sc.exe
  PID:2160
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop bits
  2⤵
  - Launches sc.exe
  PID:4364
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" config bits start= disabled
  2⤵
  - Launches sc.exe
  PID:5828
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop vss
  2⤵
  - Launches sc.exe
  PID:5556
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" config vss start= disabled
  2⤵
  - Launches sc.exe
  PID:4956
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop swprv
  2⤵
  - Launches sc.exe
  PID:5212
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" config swprv start= disabled
  2⤵
  - Launches sc.exe
  PID:880
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop EventLog
  2⤵
  - Launches sc.exe
  PID:1276
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" config EventLog start= disabled
  2⤵
  - Launches sc.exe
  PID:3000
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop SysmonLog
  2⤵
  - Launches sc.exe
  PID:3292
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" config SysmonLog start= disabled
  2⤵
  - Launches sc.exe
  PID:5644
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop Sysmon
  2⤵
  - Launches sc.exe
  PID:2536
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" config Sysmon start= disabled
  2⤵
  - Launches sc.exe
  PID:5904
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop sense
  2⤵
  - Launches sc.exe
  PID:948
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" config sense start= disabled
  2⤵
  - Launches sc.exe
  PID:1084
- C:\Windows\System32\fodhelper.exe
  "C:\Windows\System32\fodhelper.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4796
- - C:\Users\Admin\AppData\Local\Temp\fitzi.io_nano.exe
    "C:\Users\Admin\AppData\Local\Temp\fitzi.io_nano.exe"
    3⤵
    PID:2652
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop wscsvc
  2⤵
  - Launches sc.exe
  PID:5344
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop wuauserv
  2⤵
  - Launches sc.exe
  PID:1300
- C:\Windows\System32\vssadmin.exe
  "C:\Windows\System32\vssadmin.exe" delete shadows /all /quiet
  2⤵
  - Interacts with shadow copies
  PID:3608
- C:\Windows\System32\wbem\WMIC.exe
  "C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5376
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /tn "SysUpdateTask" /tr "C:\Users\Admin\AppData\Local\Temp\fitzi.io_nano.exe" /sc onlogon /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:1920
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /tn "SysUpdateBackup" /tr "C:\Users\Admin\AppData\Local\Temp\fitzi.io_nano.exe" /sc minute /mo 30 /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:4428
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\del.bat" "
  2⤵
  - Executes a command shell one-liner
  - Suspicious use of WriteProcessMemory
  PID:5192
- - C:\Windows\system32\vssadmin.exe
    vssadmin delete shadows /all /quiet
    3⤵
    - Interacts with shadow copies
    PID:6104
- - C:\Windows\System32\Wbem\WMIC.exe
    wmic shadowcopy delete
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:3596
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c systeminfo > "C:\ProgramData\SysUpdate\Logs\sysinfo.txt"
  2⤵
  - Executes a command shell one-liner
  - Suspicious use of WriteProcessMemory
  PID:1592
- - C:\Windows\system32\systeminfo.exe
    systeminfo
    3⤵
    - Gathers system information
    PID:2528
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c tasklist > "C:\ProgramData\SysUpdate\Logs\tasklist.txt"
  2⤵
  - Executes a command shell one-liner
  - Suspicious use of WriteProcessMemory
  PID:1624
- - C:\Windows\system32\tasklist.exe
    tasklist
    3⤵
    - Discovers running processes
    PID:2040
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c whoami > "C:\ProgramData\SysUpdate\Logs\whoami.txt"
  2⤵
  - Executes a command shell one-liner
  - Suspicious use of WriteProcessMemory
  PID:1944
- - C:\Windows\system32\whoami.exe
    whoami
    3⤵
    PID:3276
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c ipconfig /all > "C:\ProgramData\SysUpdate\Logs\ipconfig.txt"
  2⤵
  - Executes a command shell one-liner
  - Suspicious use of WriteProcessMemory
  PID:404
- - C:\Windows\system32\ipconfig.exe
    ipconfig /all
    3⤵
    - Gathers network information
    PID:1272
- C:\Windows\SYSTEM32\cmd.exe
  "cmd.exe" /c netstat -an > "C:\ProgramData\SysUpdate\Logs\netstat.txt"
  2⤵
  - Executes a command shell one-liner
  - Suspicious use of WriteProcessMemory
  PID:1792
- - C:\Windows\system32\NETSTAT.EXE
    netstat -an
    3⤵
    - Gathers network information
    PID:6108
- C:\Windows\SYSTEM32\schtasks.exe
  "schtasks" /create /tn "RansomwareCheck" /tr "C:\Users\Admin\AppData\Local\Temp\fitzi.io_nano.exe" /sc daily /f
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:4276
- C:\Windows\System32\wscript.exe
  "C:\Windows\System32\wscript.exe" C:\Users\Admin\AppData\Local\Temp\createshortcut.vbs
  2⤵
  - Executes a VBScript file via the Windows Script Host.
  PID:2580
- C:\Windows\System32\notepad.exe
  "C:\Windows\System32\notepad.exe"
  2⤵
  PID:5772
- C:\Windows\System32\net.exe
  "C:\Windows\System32\net.exe" stop srservice
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:5628
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 stop srservice
    3⤵
    PID:1000
- C:\Windows\System32\netsh.exe
  "C:\Windows\System32\netsh.exe" advfirewall set allprofiles state off
  2⤵
  - Modifies Windows Firewall
  - Event Triggered Execution: Netsh Helper DLL
  PID:3608
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" config i8042prt start= disabled
  2⤵
  - Launches sc.exe
  PID:260
- C:\Windows\System32\sc.exe
  "C:\Windows\System32\sc.exe" stop i8042prt
  2⤵
  - Launches sc.exe
  PID:4144
- C:\Windows\system32\svchost.exe
  "C:\Windows\system32\svchost.exe"
  2⤵
  PID:2168
- C:\Windows\SYSTEM32\netsh.exe
  "netsh" wlan show profiles
  2⤵
  - Event Triggered Execution: Netsh Helper DLL
  - System Network Configuration Discovery: Wi-Fi Discovery
  PID:1912
- C:\Windows\System32\net.exe
  "C:\Windows\System32\net.exe" user backdoor P@ssw0rd123 /add
  2⤵
  - Creates a new local user account
  - Suspicious use of WriteProcessMemory
  PID:2324
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 user backdoor P@ssw0rd123 /add
    3⤵
    - Creates a new local user account
    PID:3904
- C:\Windows\System32\net.exe
  "C:\Windows\System32\net.exe" localgroup administrators backdoor /add
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2248
- - C:\Windows\system32\net1.exe
    C:\Windows\system32\net1 localgroup administrators backdoor /add
    3⤵
    PID:3112

C:\Users\Admin\AppData\Local\Temp\fitzi.io_nano.exe
C:\Users\Admin\AppData\Local\Temp\fitzi.io_nano.exe
1⤵
PID:720

C:\Users\Admin\AppData\Local\Temp\fitzi.io_nano.exe
C:\Users\Admin\AppData\Local\Temp\fitzi.io_nano.exe
1⤵
PID:3396

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Visual Basic

T1059.005

Windows Command Shell

T1059.003

Scheduled Task/Job

T1053

Scheduled Task

System Services

T1569

Service Execution

T1569.002

Windows Management Instrumentation

T1047

Persistence

Account Manipulation

T1098

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

Create Account

T1136

Local Account

T1136.001

Create or Modify System Process

T1543

Windows Service

Event Triggered Execution

T1546

Image File Execution Options Injection

T1546.012

Netsh Helper DLL

T1546.007

Scheduled Task/Job

T1053

Scheduled Task

Privilege Escalation

Account Manipulation

T1098

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

Create or Modify System Process

T1543

Windows Service

Event Triggered Execution

T1546

Image File Execution Options Injection

T1546.012

Netsh Helper DLL

T1546.007

Scheduled Task/Job

T1053

Scheduled Task

Defense Evasion

Direct Volume Access

T1006

Impair Defenses

T1562

Disable or Modify System Firewall

T1562.004

Disable or Modify Tools

T1562.001

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry