agenttesla | 79f875e9f11cf9ef04d13a5995acf891688424eab9315d71ae7a3573288c6a0c

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Oracle\VirtualBox Guest Additions	cdb9c729be69d7be3dc8968076579965_JaffaCakes118.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	cdb9c729be69d7be3dc8968076579965_JaffaCakes118.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\VideoBiosVersion	cdb9c729be69d7be3dc8968076579965_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	cdb9c729be69d7be3dc8968076579965_JaffaCakes118.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 2 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

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	cdb9c729be69d7be3dc8968076579965_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	cdb9c729be69d7be3dc8968076579965_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	cdb9c729be69d7be3dc8968076579965_JaffaCakes118.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

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	cdb9c729be69d7be3dc8968076579965_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	cdb9c729be69d7be3dc8968076579965_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2780 set thread context of 2424	2780	cdb9c729be69d7be3dc8968076579965_JaffaCakes118.exe	33

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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cdb9c729be69d7be3dc8968076579965_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cdb9c729be69d7be3dc8968076579965_JaffaCakes118.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

persistence execution

Scheduled Task

pid	Process
2768	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2424	cdb9c729be69d7be3dc8968076579965_JaffaCakes118.exe
2424	cdb9c729be69d7be3dc8968076579965_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2424	cdb9c729be69d7be3dc8968076579965_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2780 wrote to memory of 2768	2780	cdb9c729be69d7be3dc8968076579965_JaffaCakes118.exe	31
PID 2780 wrote to memory of 2768	2780	cdb9c729be69d7be3dc8968076579965_JaffaCakes118.exe	31
PID 2780 wrote to memory of 2768	2780	cdb9c729be69d7be3dc8968076579965_JaffaCakes118.exe	31
PID 2780 wrote to memory of 2768	2780	cdb9c729be69d7be3dc8968076579965_JaffaCakes118.exe	31
PID 2780 wrote to memory of 2424	2780	cdb9c729be69d7be3dc8968076579965_JaffaCakes118.exe	33
PID 2780 wrote to memory of 2424	2780	cdb9c729be69d7be3dc8968076579965_JaffaCakes118.exe	33
PID 2780 wrote to memory of 2424	2780	cdb9c729be69d7be3dc8968076579965_JaffaCakes118.exe	33
PID 2780 wrote to memory of 2424	2780	cdb9c729be69d7be3dc8968076579965_JaffaCakes118.exe	33
PID 2780 wrote to memory of 2424	2780	cdb9c729be69d7be3dc8968076579965_JaffaCakes118.exe	33
PID 2780 wrote to memory of 2424	2780	cdb9c729be69d7be3dc8968076579965_JaffaCakes118.exe	33
PID 2780 wrote to memory of 2424	2780	cdb9c729be69d7be3dc8968076579965_JaffaCakes118.exe	33
PID 2780 wrote to memory of 2424	2780	cdb9c729be69d7be3dc8968076579965_JaffaCakes118.exe	33
PID 2780 wrote to memory of 2424	2780	cdb9c729be69d7be3dc8968076579965_JaffaCakes118.exe	33

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	cdb9c729be69d7be3dc8968076579965_JaffaCakes118.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	cdb9c729be69d7be3dc8968076579965_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\cdb9c729be69d7be3dc8968076579965_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\cdb9c729be69d7be3dc8968076579965_JaffaCakes118.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
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2780
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\jbJxIthLHdcJE" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9E90.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2768
- C:\Users\Admin\AppData\Local\Temp\cdb9c729be69d7be3dc8968076579965_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\cdb9c729be69d7be3dc8968076579965_JaffaCakes118.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:2424

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

Persistence

Scheduled Task/Job

T1053

Scheduled Task

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

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

Query Registry

System Information Discovery

3

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion