stealc | fabbd30d44740ec2df378b4145113fc8ae919b0d25fd902d1c6af55e46638d19

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	fabbd30d44740ec2df378b4145113fc8ae919b0d25fd902d1c6af55e46638d19.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	fabbd30d44740ec2df378b4145113fc8ae919b0d25fd902d1c6af55e46638d19.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	fabbd30d44740ec2df378b4145113fc8ae919b0d25fd902d1c6af55e46638d19.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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	fabbd30d44740ec2df378b4145113fc8ae919b0d25fd902d1c6af55e46638d19.exe

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

Data from Local System
T1005

Credentials In Files
T1552.001
Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

Credentials In Files
T1552.001
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

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	fabbd30d44740ec2df378b4145113fc8ae919b0d25fd902d1c6af55e46638d19.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1520	fabbd30d44740ec2df378b4145113fc8ae919b0d25fd902d1c6af55e46638d19.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 3 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	fabbd30d44740ec2df378b4145113fc8ae919b0d25fd902d1c6af55e46638d19.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	fabbd30d44740ec2df378b4145113fc8ae919b0d25fd902d1c6af55e46638d19.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	fabbd30d44740ec2df378b4145113fc8ae919b0d25fd902d1c6af55e46638d19.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3732	timeout.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1520	fabbd30d44740ec2df378b4145113fc8ae919b0d25fd902d1c6af55e46638d19.exe
1520	fabbd30d44740ec2df378b4145113fc8ae919b0d25fd902d1c6af55e46638d19.exe
1520	fabbd30d44740ec2df378b4145113fc8ae919b0d25fd902d1c6af55e46638d19.exe
1520	fabbd30d44740ec2df378b4145113fc8ae919b0d25fd902d1c6af55e46638d19.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1520 wrote to memory of 2256	1520	fabbd30d44740ec2df378b4145113fc8ae919b0d25fd902d1c6af55e46638d19.exe	83
PID 1520 wrote to memory of 2256	1520	fabbd30d44740ec2df378b4145113fc8ae919b0d25fd902d1c6af55e46638d19.exe	83
PID 1520 wrote to memory of 2256	1520	fabbd30d44740ec2df378b4145113fc8ae919b0d25fd902d1c6af55e46638d19.exe	83
PID 2256 wrote to memory of 3732	2256	cmd.exe	85
PID 2256 wrote to memory of 3732	2256	cmd.exe	85
PID 2256 wrote to memory of 3732	2256	cmd.exe	85

C:\Users\Admin\AppData\Local\Temp\fabbd30d44740ec2df378b4145113fc8ae919b0d25fd902d1c6af55e46638d19.exe
"C:\Users\Admin\AppData\Local\Temp\fabbd30d44740ec2df378b4145113fc8ae919b0d25fd902d1c6af55e46638d19.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
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1520
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\fabbd30d44740ec2df378b4145113fc8ae919b0d25fd902d1c6af55e46638d19.exe" & del "C:\ProgramData\*.dll"" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2256
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 5
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:3732

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

Query Registry

5

System Information Discovery

5

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Data from Local System