privateloader | 0fd1f535929f90d75a59c57a8b33e4fb40381bb7ee31b3c18c10cb7c8d6599a3

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	0fd1f535929f90d75a59c57a8b33e4fb40381bb7ee31b3c18c10cb7c8d6599a3.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\VideoBiosVersion	0fd1f535929f90d75a59c57a8b33e4fb40381bb7ee31b3c18c10cb7c8d6599a3.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	0fd1f535929f90d75a59c57a8b33e4fb40381bb7ee31b3c18c10cb7c8d6599a3.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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	0fd1f535929f90d75a59c57a8b33e4fb40381bb7ee31b3c18c10cb7c8d6599a3.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

Themida packer 9 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral2/memory/1068-0-0x00000000005D0000-0x0000000001071000-memory.dmp	themida
behavioral2/memory/1068-2-0x00000000005D0000-0x0000000001071000-memory.dmp	themida
behavioral2/memory/1068-3-0x00000000005D0000-0x0000000001071000-memory.dmp	themida
behavioral2/memory/1068-4-0x00000000005D0000-0x0000000001071000-memory.dmp	themida
behavioral2/memory/1068-5-0x00000000005D0000-0x0000000001071000-memory.dmp	themida
behavioral2/memory/1068-7-0x00000000005D0000-0x0000000001071000-memory.dmp	themida
behavioral2/memory/1068-6-0x00000000005D0000-0x0000000001071000-memory.dmp	themida
behavioral2/memory/1068-8-0x00000000005D0000-0x0000000001071000-memory.dmp	themida
behavioral2/memory/1068-25-0x00000000005D0000-0x0000000001071000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	0fd1f535929f90d75a59c57a8b33e4fb40381bb7ee31b3c18c10cb7c8d6599a3.exe

Looks up external IP address via web service 4 IoCs

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

flow	ioc
14	ipinfo.io
15	ipinfo.io
20	api.db-ip.com
21	api.db-ip.com

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\System32\GroupPolicy	0fd1f535929f90d75a59c57a8b33e4fb40381bb7ee31b3c18c10cb7c8d6599a3.exe
File opened for modification	C:\Windows\SysWOW64\GroupPolicy\gpt.ini	0fd1f535929f90d75a59c57a8b33e4fb40381bb7ee31b3c18c10cb7c8d6599a3.exe
File created	C:\Windows\System32\GroupPolicy\Machine\Registry.pol	0fd1f535929f90d75a59c57a8b33e4fb40381bb7ee31b3c18c10cb7c8d6599a3.exe
File opened for modification	C:\Windows\System32\GroupPolicy\GPT.INI	0fd1f535929f90d75a59c57a8b33e4fb40381bb7ee31b3c18c10cb7c8d6599a3.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1068	0fd1f535929f90d75a59c57a8b33e4fb40381bb7ee31b3c18c10cb7c8d6599a3.exe

System Location Discovery: System Language Discovery 1 TTPs 1 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	0fd1f535929f90d75a59c57a8b33e4fb40381bb7ee31b3c18c10cb7c8d6599a3.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1068	0fd1f535929f90d75a59c57a8b33e4fb40381bb7ee31b3c18c10cb7c8d6599a3.exe
1068	0fd1f535929f90d75a59c57a8b33e4fb40381bb7ee31b3c18c10cb7c8d6599a3.exe
1068	0fd1f535929f90d75a59c57a8b33e4fb40381bb7ee31b3c18c10cb7c8d6599a3.exe
1068	0fd1f535929f90d75a59c57a8b33e4fb40381bb7ee31b3c18c10cb7c8d6599a3.exe

C:\Users\Admin\AppData\Local\Temp\0fd1f535929f90d75a59c57a8b33e4fb40381bb7ee31b3c18c10cb7c8d6599a3.exe
"C:\Users\Admin\AppData\Local\Temp\0fd1f535929f90d75a59c57a8b33e4fb40381bb7ee31b3c18c10cb7c8d6599a3.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks computer location settings
- Checks whether UAC is enabled
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:1068

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
1⤵
PID:2128

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
1⤵
PID:4368

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

3

System Information Discovery

3

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Data from Local System