mercurialgrabber | 6799fdc40a998e96054b9bb748ab84f163eab37b168ce3cc08bdd74c09094369

Virtualization/Sandbox Evasion

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

Looks for VMWare Tools registry key 2 TTPs 1 IoCs

defense_evasion

Query Registry

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\VMWare, Inc.\VMWare Tools	test.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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	test.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-1-5-21-3975168204-1612096350-4002976354-1000\Control Panel\International\Geo\Nation	a5e43e7a219d301589d65f7dc18997c5b346e34e7d92063f1ed1f10263d34542.exe

Executes dropped EXE 2 IoCs

pid	Process
5544	test.exe
1564	Lunar_Builder.exe

Loads dropped DLL 2 IoCs

pid	Process
1564	Lunar_Builder.exe
1564	Lunar_Builder.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs

Web Service

T1102

flow	ioc
28	discord.com
29	discord.com
30	discord.com

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
8	ip4.seeip.org
26	ip-api.com

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	test.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	test.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a5e43e7a219d301589d65f7dc18997c5b346e34e7d92063f1ed1f10263d34542.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Lunar_Builder.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

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

Enumerates system info in registry 2 TTPs 4 IoCs

Query Registry

System Information Discovery

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

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	5544	test.exe
Token: SeDebugPrivilege	1564	Lunar_Builder.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1564	Lunar_Builder.exe
1564	Lunar_Builder.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1364 wrote to memory of 5544	1364	a5e43e7a219d301589d65f7dc18997c5b346e34e7d92063f1ed1f10263d34542.exe	88
PID 1364 wrote to memory of 5544	1364	a5e43e7a219d301589d65f7dc18997c5b346e34e7d92063f1ed1f10263d34542.exe	88
PID 1364 wrote to memory of 1564	1364	a5e43e7a219d301589d65f7dc18997c5b346e34e7d92063f1ed1f10263d34542.exe	91
PID 1364 wrote to memory of 1564	1364	a5e43e7a219d301589d65f7dc18997c5b346e34e7d92063f1ed1f10263d34542.exe	91
PID 1364 wrote to memory of 1564	1364	a5e43e7a219d301589d65f7dc18997c5b346e34e7d92063f1ed1f10263d34542.exe	91

C:\Users\Admin\AppData\Local\Temp\a5e43e7a219d301589d65f7dc18997c5b346e34e7d92063f1ed1f10263d34542.exe
"C:\Users\Admin\AppData\Local\Temp\a5e43e7a219d301589d65f7dc18997c5b346e34e7d92063f1ed1f10263d34542.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1364
- C:\Users\Public\Music\test.exe
  "C:\Users\Public\Music\test.exe"
  2⤵
  - Looks for VirtualBox Guest Additions in registry
  - Looks for VMWare Tools registry key
  - Checks BIOS information in registry
  - Executes dropped EXE
  - Maps connected drives based on registry
  - Checks SCSI registry key(s)
  - Enumerates system info in registry
  - Suspicious use of AdjustPrivilegeToken
  PID:5544
- C:\Users\Public\Music\Lunar_Builder.exe
  "C:\Users\Public\Music\Lunar_Builder.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1564

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Peripheral Device Discovery

T1120

Query Registry

System Information Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion