mercurialgrabber | df31b3fc7860b4eabb64b6673cf1fbb0b049dfe94e41d8d3c7e080fe6b1880ec

Virtualization/Sandbox Evasion

Processes:

df31b3fc7860b4eabb64b6673cf1fbb0b049dfe94e41d8d3c7e080fe6b1880ec.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions	df31b3fc7860b4eabb64b6673cf1fbb0b049dfe94e41d8d3c7e080fe6b1880ec.exe

Looks for VMWare Tools registry key 2 TTPs 1 IoCs

evasion

Query Registry

Virtualization/Sandbox Evasion

Processes:

df31b3fc7860b4eabb64b6673cf1fbb0b049dfe94e41d8d3c7e080fe6b1880ec.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SOFTWARE\VMWare, Inc.\VMWare Tools	df31b3fc7860b4eabb64b6673cf1fbb0b049dfe94e41d8d3c7e080fe6b1880ec.exe

Checks BIOS information in registry 2 TTPs 1 IoCs

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

Query Registry

System Information Discovery

Processes:

df31b3fc7860b4eabb64b6673cf1fbb0b049dfe94e41d8d3c7e080fe6b1880ec.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	df31b3fc7860b4eabb64b6673cf1fbb0b049dfe94e41d8d3c7e080fe6b1880ec.exe

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

Data from Local System
T1005

Credentials in Files
T1081
Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

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:

df31b3fc7860b4eabb64b6673cf1fbb0b049dfe94e41d8d3c7e080fe6b1880ec.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	df31b3fc7860b4eabb64b6673cf1fbb0b049dfe94e41d8d3c7e080fe6b1880ec.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	df31b3fc7860b4eabb64b6673cf1fbb0b049dfe94e41d8d3c7e080fe6b1880ec.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

924 1912 WerFault.exe df31b3fc7860b4eabb64b6673cf1fbb0b049dfe94e41d8d3c7e080fe6b1880ec.exe

pid	pid_target	process	target process
924	1912	WerFault.exe	df31b3fc7860b4eabb64b6673cf1fbb0b049dfe94e41d8d3c7e080fe6b1880ec.exe

Checks SCSI registry key(s) 3 TTPs 1 IoCs

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

Query Registry

Peripheral Device Discovery

T1120

System Information Discovery

Processes:

df31b3fc7860b4eabb64b6673cf1fbb0b049dfe94e41d8d3c7e080fe6b1880ec.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_VMware_&Prod_VMware_Virtual_S	df31b3fc7860b4eabb64b6673cf1fbb0b049dfe94e41d8d3c7e080fe6b1880ec.exe

Checks processor information in registry 2 TTPs 2 IoCs

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

Query Registry

System Information Discovery

Processes:

df31b3fc7860b4eabb64b6673cf1fbb0b049dfe94e41d8d3c7e080fe6b1880ec.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	df31b3fc7860b4eabb64b6673cf1fbb0b049dfe94e41d8d3c7e080fe6b1880ec.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	df31b3fc7860b4eabb64b6673cf1fbb0b049dfe94e41d8d3c7e080fe6b1880ec.exe

Enumerates system info in registry 2 TTPs 4 IoCs

Query Registry

System Information Discovery

Processes:

df31b3fc7860b4eabb64b6673cf1fbb0b049dfe94e41d8d3c7e080fe6b1880ec.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Logical Unit Id 0	df31b3fc7860b4eabb64b6673cf1fbb0b049dfe94e41d8d3c7e080fe6b1880ec.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosInformation	df31b3fc7860b4eabb64b6673cf1fbb0b049dfe94e41d8d3c7e080fe6b1880ec.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemManufacturer	df31b3fc7860b4eabb64b6673cf1fbb0b049dfe94e41d8d3c7e080fe6b1880ec.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemProductName	df31b3fc7860b4eabb64b6673cf1fbb0b049dfe94e41d8d3c7e080fe6b1880ec.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

df31b3fc7860b4eabb64b6673cf1fbb0b049dfe94e41d8d3c7e080fe6b1880ec.exe

description pid process

Token: SeDebugPrivilege 1912 df31b3fc7860b4eabb64b6673cf1fbb0b049dfe94e41d8d3c7e080fe6b1880ec.exe

description	pid	process
Token: SeDebugPrivilege	1912	df31b3fc7860b4eabb64b6673cf1fbb0b049dfe94e41d8d3c7e080fe6b1880ec.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

df31b3fc7860b4eabb64b6673cf1fbb0b049dfe94e41d8d3c7e080fe6b1880ec.exe

description	pid	process	target process
PID 1912 wrote to memory of 924	1912	df31b3fc7860b4eabb64b6673cf1fbb0b049dfe94e41d8d3c7e080fe6b1880ec.exe	WerFault.exe
PID 1912 wrote to memory of 924	1912	df31b3fc7860b4eabb64b6673cf1fbb0b049dfe94e41d8d3c7e080fe6b1880ec.exe	WerFault.exe
PID 1912 wrote to memory of 924	1912	df31b3fc7860b4eabb64b6673cf1fbb0b049dfe94e41d8d3c7e080fe6b1880ec.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\df31b3fc7860b4eabb64b6673cf1fbb0b049dfe94e41d8d3c7e080fe6b1880ec.exe
"C:\Users\Admin\AppData\Local\Temp\df31b3fc7860b4eabb64b6673cf1fbb0b049dfe94e41d8d3c7e080fe6b1880ec.exe"
1⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Maps connected drives based on registry
- Checks SCSI registry key(s)
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1912

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 1912 -s 1272
2⤵
- Program crash
PID:924

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

7

Virtualization/Sandbox Evasion

2

System Information Discovery

5