238788e74cb6c3236215f14bced5cfb01458fdd84a924d615f54a597db2f8f27

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\VMware, Inc.\VMware Tools	RFQ.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	RFQ.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	RFQ.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1492 set thread context of 1932	1492	RFQ.exe	29

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware

Data from Local System
T1005

Credentials in Files
T1081

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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	RFQ.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	RFQ.exe

Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs

Query Registry

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Oracle\VirtualBox Guest Additions	RFQ.exe

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

pid	Process
1920	schtasks.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1492 wrote to memory of 1920	1492	RFQ.exe	27
PID 1492 wrote to memory of 1920	1492	RFQ.exe	27
PID 1492 wrote to memory of 1920	1492	RFQ.exe	27
PID 1492 wrote to memory of 1920	1492	RFQ.exe	27
PID 1492 wrote to memory of 1932	1492	RFQ.exe	29
PID 1492 wrote to memory of 1932	1492	RFQ.exe	29
PID 1492 wrote to memory of 1932	1492	RFQ.exe	29
PID 1492 wrote to memory of 1932	1492	RFQ.exe	29
PID 1492 wrote to memory of 1932	1492	RFQ.exe	29
PID 1492 wrote to memory of 1932	1492	RFQ.exe	29
PID 1492 wrote to memory of 1932	1492	RFQ.exe	29
PID 1492 wrote to memory of 1932	1492	RFQ.exe	29
PID 1492 wrote to memory of 1932	1492	RFQ.exe	29

C:\Users\Admin\AppData\Local\Temp\RFQ.exe
"C:\Users\Admin\AppData\Local\Temp\RFQ.exe"
1⤵
- Looks for VMWare Tools registry key
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Checks BIOS information in registry
- Looks for VirtualBox Guest Additions in registry
- Suspicious use of WriteProcessMemory
PID:1492
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\srLQeRhwmCbwr" /XML "C:\Users\Admin\AppData\Local\Temp\tmp212.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1920
- C:\Users\Admin\AppData\Local\Temp\RFQ.exe
  "C:\Users\Admin\AppData\Local\Temp\RFQ.exe"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious behavior: EnumeratesProcesses
  PID:1932

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

Persistence

Scheduled Task

1

Privilege Escalation

Scheduled Task

1

Defense Evasion

Credential Access

Credentials in Files

3

T1081

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

4