agenttesla | 4d67b942d28c806efd17da6040a4e5b21db90189148b6e25f2563562e394f945

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Oracle\VirtualBox Guest Additions	4d67b942d28c806efd17da6040a4e5b21db90189148b6e25f2563562e394f945.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
5064	powershell.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	4d67b942d28c806efd17da6040a4e5b21db90189148b6e25f2563562e394f945.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	4d67b942d28c806efd17da6040a4e5b21db90189148b6e25f2563562e394f945.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	4d67b942d28c806efd17da6040a4e5b21db90189148b6e25f2563562e394f945.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	4d67b942d28c806efd17da6040a4e5b21db90189148b6e25f2563562e394f945.exe

Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	4d67b942d28c806efd17da6040a4e5b21db90189148b6e25f2563562e394f945.exe
Key opened	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	4d67b942d28c806efd17da6040a4e5b21db90189148b6e25f2563562e394f945.exe
Key opened	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	4d67b942d28c806efd17da6040a4e5b21db90189148b6e25f2563562e394f945.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	4d67b942d28c806efd17da6040a4e5b21db90189148b6e25f2563562e394f945.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	4d67b942d28c806efd17da6040a4e5b21db90189148b6e25f2563562e394f945.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2720 set thread context of 3908	2720	4d67b942d28c806efd17da6040a4e5b21db90189148b6e25f2563562e394f945.exe	102

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	4d67b942d28c806efd17da6040a4e5b21db90189148b6e25f2563562e394f945.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4d67b942d28c806efd17da6040a4e5b21db90189148b6e25f2563562e394f945.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
5064	powershell.exe
3908	4d67b942d28c806efd17da6040a4e5b21db90189148b6e25f2563562e394f945.exe
3908	4d67b942d28c806efd17da6040a4e5b21db90189148b6e25f2563562e394f945.exe
5064	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	5064	powershell.exe
Token: SeDebugPrivilege	3908	4d67b942d28c806efd17da6040a4e5b21db90189148b6e25f2563562e394f945.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2720 wrote to memory of 5064	2720	4d67b942d28c806efd17da6040a4e5b21db90189148b6e25f2563562e394f945.exe	100
PID 2720 wrote to memory of 5064	2720	4d67b942d28c806efd17da6040a4e5b21db90189148b6e25f2563562e394f945.exe	100
PID 2720 wrote to memory of 5064	2720	4d67b942d28c806efd17da6040a4e5b21db90189148b6e25f2563562e394f945.exe	100
PID 2720 wrote to memory of 3908	2720	4d67b942d28c806efd17da6040a4e5b21db90189148b6e25f2563562e394f945.exe	102
PID 2720 wrote to memory of 3908	2720	4d67b942d28c806efd17da6040a4e5b21db90189148b6e25f2563562e394f945.exe	102
PID 2720 wrote to memory of 3908	2720	4d67b942d28c806efd17da6040a4e5b21db90189148b6e25f2563562e394f945.exe	102
PID 2720 wrote to memory of 3908	2720	4d67b942d28c806efd17da6040a4e5b21db90189148b6e25f2563562e394f945.exe	102
PID 2720 wrote to memory of 3908	2720	4d67b942d28c806efd17da6040a4e5b21db90189148b6e25f2563562e394f945.exe	102
PID 2720 wrote to memory of 3908	2720	4d67b942d28c806efd17da6040a4e5b21db90189148b6e25f2563562e394f945.exe	102
PID 2720 wrote to memory of 3908	2720	4d67b942d28c806efd17da6040a4e5b21db90189148b6e25f2563562e394f945.exe	102
PID 2720 wrote to memory of 3908	2720	4d67b942d28c806efd17da6040a4e5b21db90189148b6e25f2563562e394f945.exe	102

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	4d67b942d28c806efd17da6040a4e5b21db90189148b6e25f2563562e394f945.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	4d67b942d28c806efd17da6040a4e5b21db90189148b6e25f2563562e394f945.exe

C:\Users\Admin\AppData\Local\Temp\4d67b942d28c806efd17da6040a4e5b21db90189148b6e25f2563562e394f945.exe
"C:\Users\Admin\AppData\Local\Temp\4d67b942d28c806efd17da6040a4e5b21db90189148b6e25f2563562e394f945.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
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2720
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\4d67b942d28c806efd17da6040a4e5b21db90189148b6e25f2563562e394f945.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:5064
- C:\Users\Admin\AppData\Local\Temp\4d67b942d28c806efd17da6040a4e5b21db90189148b6e25f2563562e394f945.exe
  "C:\Users\Admin\AppData\Local\Temp\4d67b942d28c806efd17da6040a4e5b21db90189148b6e25f2563562e394f945.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:3908

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

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