79b0c9d309debac7384a0d5a95839b42be00d66aa0e545cf84060f3c0c8af22b

System Information Discovery

Processes:

RFQ_PCPSPIRSZ2020022.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	RFQ_PCPSPIRSZ2020022.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	RFQ_PCPSPIRSZ2020022.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:

RFQ_PCPSPIRSZ2020022.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	RFQ_PCPSPIRSZ2020022.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:

RFQ_PCPSPIRSZ2020022.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	RFQ_PCPSPIRSZ2020022.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	RFQ_PCPSPIRSZ2020022.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

RFQ_PCPSPIRSZ2020022.exe

description pid process target process

PID 2584 set thread context of 4408 2584 RFQ_PCPSPIRSZ2020022.exe RFQ_PCPSPIRSZ2020022.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

4252 schtasks.exe

description	pid	process	target process
PID 2584 set thread context of 4408	2584	RFQ_PCPSPIRSZ2020022.exe	RFQ_PCPSPIRSZ2020022.exe

pid	process
4252	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

RFQ_PCPSPIRSZ2020022.exeRFQ_PCPSPIRSZ2020022.exepowershell.exe

pid	process
2584	RFQ_PCPSPIRSZ2020022.exe
2584	RFQ_PCPSPIRSZ2020022.exe
2584	RFQ_PCPSPIRSZ2020022.exe
2584	RFQ_PCPSPIRSZ2020022.exe
4408	RFQ_PCPSPIRSZ2020022.exe
4408	RFQ_PCPSPIRSZ2020022.exe
1032	powershell.exe
1032	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

RFQ_PCPSPIRSZ2020022.exeRFQ_PCPSPIRSZ2020022.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	2584	RFQ_PCPSPIRSZ2020022.exe
Token: SeDebugPrivilege	4408	RFQ_PCPSPIRSZ2020022.exe
Token: SeDebugPrivilege	1032	powershell.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

RFQ_PCPSPIRSZ2020022.exeRFQ_PCPSPIRSZ2020022.execmd.exe

description	pid	process	target process
PID 2584 wrote to memory of 4252	2584	RFQ_PCPSPIRSZ2020022.exe	schtasks.exe
PID 2584 wrote to memory of 4252	2584	RFQ_PCPSPIRSZ2020022.exe	schtasks.exe
PID 2584 wrote to memory of 4252	2584	RFQ_PCPSPIRSZ2020022.exe	schtasks.exe
PID 2584 wrote to memory of 4408	2584	RFQ_PCPSPIRSZ2020022.exe	RFQ_PCPSPIRSZ2020022.exe
PID 2584 wrote to memory of 4408	2584	RFQ_PCPSPIRSZ2020022.exe	RFQ_PCPSPIRSZ2020022.exe
PID 2584 wrote to memory of 4408	2584	RFQ_PCPSPIRSZ2020022.exe	RFQ_PCPSPIRSZ2020022.exe
PID 2584 wrote to memory of 4408	2584	RFQ_PCPSPIRSZ2020022.exe	RFQ_PCPSPIRSZ2020022.exe
PID 2584 wrote to memory of 4408	2584	RFQ_PCPSPIRSZ2020022.exe	RFQ_PCPSPIRSZ2020022.exe
PID 2584 wrote to memory of 4408	2584	RFQ_PCPSPIRSZ2020022.exe	RFQ_PCPSPIRSZ2020022.exe
PID 2584 wrote to memory of 4408	2584	RFQ_PCPSPIRSZ2020022.exe	RFQ_PCPSPIRSZ2020022.exe
PID 2584 wrote to memory of 4408	2584	RFQ_PCPSPIRSZ2020022.exe	RFQ_PCPSPIRSZ2020022.exe
PID 4408 wrote to memory of 3616	4408	RFQ_PCPSPIRSZ2020022.exe	cmd.exe
PID 4408 wrote to memory of 3616	4408	RFQ_PCPSPIRSZ2020022.exe	cmd.exe
PID 4408 wrote to memory of 3616	4408	RFQ_PCPSPIRSZ2020022.exe	cmd.exe
PID 3616 wrote to memory of 1032	3616	cmd.exe	powershell.exe
PID 3616 wrote to memory of 1032	3616	cmd.exe	powershell.exe
PID 3616 wrote to memory of 1032	3616	cmd.exe	powershell.exe

C:\Users\Admin\AppData\Local\Temp\RFQ_PCPSPIRSZ2020022.exe
"C:\Users\Admin\AppData\Local\Temp\RFQ_PCPSPIRSZ2020022.exe"
1⤵
- 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:2584

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\dTPwlukysvENt" /XML "C:\Users\Admin\AppData\Local\Temp\tmp608F.tmp"
2⤵
- Creates scheduled task(s)
PID:4252

C:\Users\Admin\AppData\Local\Temp\RFQ_PCPSPIRSZ2020022.exe
"{path}"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4408

C:\Windows\SysWOW64\cmd.exe
"cmd" /c start /b powershell Start-Sleep -Seconds 2; Remove-Item -path 'C:\Users\Admin\AppData\Local\Temp\RFQ_PCPSPIRSZ2020022.exe' & exit
3⤵
- Suspicious use of WriteProcessMemory
PID:3616

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
powershell Start-Sleep -Seconds 2; Remove-Item -path 'C:\Users\Admin\AppData\Local\Temp\RFQ_PCPSPIRSZ2020022.exe'
4⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1032

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Query Registry

5

Virtualization/Sandbox Evasion

2

T1497

System Information Discovery

4

Peripheral Device Discovery