agenttesla | 924eafdbcc88066c909b46f8394a3619439a09015c3c416e809fc6f346499e0e

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Oracle\VirtualBox Guest Additions	54924f638edfc6109b34be64a3d61ee59bb2105022e40f9a05d52cbc07f580e1.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	54924f638edfc6109b34be64a3d61ee59bb2105022e40f9a05d52cbc07f580e1.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

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	54924f638edfc6109b34be64a3d61ee59bb2105022e40f9a05d52cbc07f580e1.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	54924f638edfc6109b34be64a3d61ee59bb2105022e40f9a05d52cbc07f580e1.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
T1081
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
T1081
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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	54924f638edfc6109b34be64a3d61ee59bb2105022e40f9a05d52cbc07f580e1.exe
Key opened	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	54924f638edfc6109b34be64a3d61ee59bb2105022e40f9a05d52cbc07f580e1.exe
Key opened	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	54924f638edfc6109b34be64a3d61ee59bb2105022e40f9a05d52cbc07f580e1.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Windows\CurrentVersion\Run\SIqmq = "C:\\Users\\Admin\\AppData\\Roaming\\SIqmq\\SIqmq.exe"	54924f638edfc6109b34be64a3d61ee59bb2105022e40f9a05d52cbc07f580e1.exe

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
4	api.ipify.org
5	api.ipify.org

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

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	54924f638edfc6109b34be64a3d61ee59bb2105022e40f9a05d52cbc07f580e1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	54924f638edfc6109b34be64a3d61ee59bb2105022e40f9a05d52cbc07f580e1.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1340 set thread context of 864	1340	54924f638edfc6109b34be64a3d61ee59bb2105022e40f9a05d52cbc07f580e1.exe	31

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

pid	Process
1884	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1340	54924f638edfc6109b34be64a3d61ee59bb2105022e40f9a05d52cbc07f580e1.exe
Token: SeDebugPrivilege	864	54924f638edfc6109b34be64a3d61ee59bb2105022e40f9a05d52cbc07f580e1.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1340 wrote to memory of 1884	1340	54924f638edfc6109b34be64a3d61ee59bb2105022e40f9a05d52cbc07f580e1.exe	29
PID 1340 wrote to memory of 1884	1340	54924f638edfc6109b34be64a3d61ee59bb2105022e40f9a05d52cbc07f580e1.exe	29
PID 1340 wrote to memory of 1884	1340	54924f638edfc6109b34be64a3d61ee59bb2105022e40f9a05d52cbc07f580e1.exe	29
PID 1340 wrote to memory of 1884	1340	54924f638edfc6109b34be64a3d61ee59bb2105022e40f9a05d52cbc07f580e1.exe	29
PID 1340 wrote to memory of 864	1340	54924f638edfc6109b34be64a3d61ee59bb2105022e40f9a05d52cbc07f580e1.exe	31
PID 1340 wrote to memory of 864	1340	54924f638edfc6109b34be64a3d61ee59bb2105022e40f9a05d52cbc07f580e1.exe	31
PID 1340 wrote to memory of 864	1340	54924f638edfc6109b34be64a3d61ee59bb2105022e40f9a05d52cbc07f580e1.exe	31
PID 1340 wrote to memory of 864	1340	54924f638edfc6109b34be64a3d61ee59bb2105022e40f9a05d52cbc07f580e1.exe	31
PID 1340 wrote to memory of 864	1340	54924f638edfc6109b34be64a3d61ee59bb2105022e40f9a05d52cbc07f580e1.exe	31
PID 1340 wrote to memory of 864	1340	54924f638edfc6109b34be64a3d61ee59bb2105022e40f9a05d52cbc07f580e1.exe	31
PID 1340 wrote to memory of 864	1340	54924f638edfc6109b34be64a3d61ee59bb2105022e40f9a05d52cbc07f580e1.exe	31
PID 1340 wrote to memory of 864	1340	54924f638edfc6109b34be64a3d61ee59bb2105022e40f9a05d52cbc07f580e1.exe	31
PID 1340 wrote to memory of 864	1340	54924f638edfc6109b34be64a3d61ee59bb2105022e40f9a05d52cbc07f580e1.exe	31

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	54924f638edfc6109b34be64a3d61ee59bb2105022e40f9a05d52cbc07f580e1.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	54924f638edfc6109b34be64a3d61ee59bb2105022e40f9a05d52cbc07f580e1.exe

C:\Users\Admin\AppData\Local\Temp\54924f638edfc6109b34be64a3d61ee59bb2105022e40f9a05d52cbc07f580e1.exe
"C:\Users\Admin\AppData\Local\Temp\54924f638edfc6109b34be64a3d61ee59bb2105022e40f9a05d52cbc07f580e1.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
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1340
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\tHXBcNoKA" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5E85.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1884
- C:\Users\Admin\AppData\Local\Temp\54924f638edfc6109b34be64a3d61ee59bb2105022e40f9a05d52cbc07f580e1.exe
  "{path}"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:864

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

Privilege Escalation

Scheduled Task

Defense Evasion

Modify Registry

T1112

Virtualization/Sandbox Evasion

Credential Access

Credentials in Files

T1081

Discovery

Peripheral Device Discovery

T1120

Query Registry

System Information Discovery

T1082

Virtualization/Sandbox Evasion