nanocore | 7f981ededb582f74097b1c0d192809b826ae4967118c0f5d93c46bfa2e9ee300

Virtualization/Sandbox Evasion

Processes:

61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Oracle\VirtualBox Guest Additions	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe

Looks for VMWare Tools registry key 2 TTPs 1 IoCs

evasion

Query Registry

Virtualization/Sandbox Evasion

Processes:

61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\VMware, Inc.\VMware Tools	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

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

Query Registry

System Information Discovery

Processes:

61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

System Information Discovery

Processes:

61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\DHCP Subsystem = "C:\\Program Files (x86)\\DHCP Subsystem\\dhcpss.exe"	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

Processes:

61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

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

Query Registry

Peripheral Device Discovery

T1120

System Information Discovery

Processes:

61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe

description	pid	process	target process
PID 3884 set thread context of 3784	3884	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe

Drops file in Program Files directory 2 IoCs

Processes:

61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe

description	ioc	process
File created	C:\Program Files (x86)\DHCP Subsystem\dhcpss.exe	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe
File opened for modification	C:\Program Files (x86)\DHCP Subsystem\dhcpss.exe	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe

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

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

308 schtasks.exe

pid	process
308	schtasks.exe

Suspicious behavior: EnumeratesProcesses 17 IoCs

Processes:

61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exepowershell.exepowershell.exe61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe

pid	process
3884	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe
3884	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe
3884	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe
3884	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe
3884	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe
3884	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe
3884	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe
3884	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe
5112	powershell.exe
3884	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe
4084	powershell.exe
5112	powershell.exe
3884	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe
4084	powershell.exe
3784	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe
3784	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe
3784	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe

pid process

3784 61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe

pid	process
3784	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exepowershell.exepowershell.exe61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe

description	pid	process
Token: SeDebugPrivilege	3884	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe
Token: SeDebugPrivilege	5112	powershell.exe
Token: SeDebugPrivilege	4084	powershell.exe
Token: SeDebugPrivilege	3784	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe

description	pid	process	target process
PID 3884 wrote to memory of 5112	3884	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe	powershell.exe
PID 3884 wrote to memory of 5112	3884	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe	powershell.exe
PID 3884 wrote to memory of 5112	3884	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe	powershell.exe
PID 3884 wrote to memory of 4084	3884	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe	powershell.exe
PID 3884 wrote to memory of 4084	3884	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe	powershell.exe
PID 3884 wrote to memory of 4084	3884	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe	powershell.exe
PID 3884 wrote to memory of 308	3884	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe	schtasks.exe
PID 3884 wrote to memory of 308	3884	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe	schtasks.exe
PID 3884 wrote to memory of 308	3884	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe	schtasks.exe
PID 3884 wrote to memory of 3784	3884	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe
PID 3884 wrote to memory of 3784	3884	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe
PID 3884 wrote to memory of 3784	3884	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe
PID 3884 wrote to memory of 3784	3884	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe
PID 3884 wrote to memory of 3784	3884	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe
PID 3884 wrote to memory of 3784	3884	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe
PID 3884 wrote to memory of 3784	3884	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe
PID 3884 wrote to memory of 3784	3884	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe	61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe

C:\Users\Admin\AppData\Local\Temp\61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe
"C:\Users\Admin\AppData\Local\Temp\61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe"
1⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Checks computer location settings
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3884

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:5112

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\XFIutXLAqZ.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4084

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\XFIutXLAqZ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7743.tmp"
2⤵
- Creates scheduled task(s)
PID:308

C:\Users\Admin\AppData\Local\Temp\61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe
"C:\Users\Admin\AppData\Local\Temp\61281ee8c26307ca4a56e9972b574a65199dfce222843d9a6445324b57cb42fa.exe"
2⤵
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:3784

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Virtualization/Sandbox Evasion

2

Modify Registry

T1112

Credential Access

Discovery

Query Registry

5

Virtualization/Sandbox Evasion

2

System Information Discovery

5

Peripheral Device Discovery