7db7e8ba889c41199e657fa9d263c5f18830a35bab6b810e267baadae1d938ae

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Oracle\VirtualBox Guest Additions	Free Temp Spoofer.exe

Looks for VMWare Tools registry key 2 TTPs 1 IoCs

evasion

Query Registry

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\VMware, Inc.\VMware Tools	Free Temp Spoofer.exe

Sets service image path in registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\frAQBc8Wsa1xVPfv\ImagePath = "\\??\\C:\\Users\\Admin\\AppData\\Local\\Temp\\frAQBc8Wsa1xVPfv"	map.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

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

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation	Free Temp Spoofer.exe

Executes dropped EXE 2 IoCs

pid	Process
4824	map.exe
4824	map.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	Free Temp Spoofer.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	Free Temp Spoofer.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\fqasf.bin	Free Temp Spoofer.exe
File created	C:\Windows\asdf.bin	Free Temp Spoofer.exe

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

System Information Discovery
T1082

Modifies data under HKEY_USERS 1 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\22\52C64B7E\@%SystemRoot%\system32\hnetcfgclient.dll,-201 = "HNetCfg Client"	svchost.exe

Suspicious behavior: EnumeratesProcesses 18 IoCs

pid	Process
3176	Free Temp Spoofer.exe
3176	Free Temp Spoofer.exe
3176	Free Temp Spoofer.exe
3176	Free Temp Spoofer.exe
3176	Free Temp Spoofer.exe
3176	Free Temp Spoofer.exe
3176	Free Temp Spoofer.exe
3176	Free Temp Spoofer.exe
3176	Free Temp Spoofer.exe
3176	Free Temp Spoofer.exe
3176	Free Temp Spoofer.exe
3176	Free Temp Spoofer.exe
3176	Free Temp Spoofer.exe
3176	Free Temp Spoofer.exe
3176	Free Temp Spoofer.exe
3176	Free Temp Spoofer.exe
3176	Free Temp Spoofer.exe
3176	Free Temp Spoofer.exe

Suspicious behavior: LoadsDriver 2 IoCs

pid	Process
4824	map.exe
4824	map.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3176	Free Temp Spoofer.exe
Token: SeDebugPrivilege	3176	Free Temp Spoofer.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 3176 wrote to memory of 784	3176	Free Temp Spoofer.exe	102
PID 3176 wrote to memory of 784	3176	Free Temp Spoofer.exe	102
PID 3176 wrote to memory of 784	3176	Free Temp Spoofer.exe	102
PID 784 wrote to memory of 4824	784	cmd.exe	104
PID 784 wrote to memory of 4824	784	cmd.exe	104
PID 3176 wrote to memory of 2384	3176	Free Temp Spoofer.exe	109
PID 3176 wrote to memory of 2384	3176	Free Temp Spoofer.exe	109
PID 3176 wrote to memory of 2384	3176	Free Temp Spoofer.exe	109
PID 3176 wrote to memory of 784	3176	Free Temp Spoofer.exe	102
PID 3176 wrote to memory of 784	3176	Free Temp Spoofer.exe	102
PID 3176 wrote to memory of 784	3176	Free Temp Spoofer.exe	102
PID 784 wrote to memory of 4824	784	cmd.exe	104
PID 784 wrote to memory of 4824	784	cmd.exe	104
PID 3176 wrote to memory of 2384	3176	Free Temp Spoofer.exe	109
PID 3176 wrote to memory of 2384	3176	Free Temp Spoofer.exe	109
PID 3176 wrote to memory of 2384	3176	Free Temp Spoofer.exe	109

C:\Users\Admin\AppData\Local\Temp\Free Temp Spoofer.exe
"C:\Users\Admin\AppData\Local\Temp\Free Temp Spoofer.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
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3176
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C C:\Windows\map.exe C:\Windows\drv.sys
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:784
- - C:\Windows\map.exe
    C:\Windows\map.exe C:\Windows\drv.sys
    3⤵
    - Sets service image path in registry
    - Executes dropped EXE
    - Suspicious behavior: LoadsDriver
    PID:4824
- C:\Windows\SysWOW64\netsh.exe
  "netsh.exe" int set int name="Ethernet" disable
  2⤵
  PID:2384

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted -p -s Netman
1⤵
- Modifies data under HKEY_USERS
PID:4544

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Virtualization/Sandbox Evasion

2

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

4

Virtualization/Sandbox Evasion

2