agenttesla | bbb11db8a10f64cdcb7ab9a166ac71d32d4df4b604d203321c3c211a818d9538

Windows Service

T1543.003

Disable or Modify Tools

T1562.001

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection	d40d2f142363cdf50cf8a5809fe06eb7_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1"	d40d2f142363cdf50cf8a5809fe06eb7_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1"	d40d2f142363cdf50cf8a5809fe06eb7_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1"	d40d2f142363cdf50cf8a5809fe06eb7_JaffaCakes118.exe

AgentTesla payload 5 IoCs

resource	yara_rule
behavioral1/memory/1648-27-0x0000000000400000-0x000000000045A000-memory.dmp	family_agenttesla
behavioral1/memory/1648-25-0x0000000000400000-0x000000000045A000-memory.dmp	family_agenttesla
behavioral1/memory/1648-23-0x0000000000400000-0x000000000045A000-memory.dmp	family_agenttesla
behavioral1/memory/1648-19-0x0000000000400000-0x000000000045A000-memory.dmp	family_agenttesla
behavioral1/memory/1648-17-0x0000000000400000-0x000000000045A000-memory.dmp	family_agenttesla

Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs

evasion

Query Registry

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Oracle\VirtualBox Guest Additions	d40d2f142363cdf50cf8a5809fe06eb7_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	d40d2f142363cdf50cf8a5809fe06eb7_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\SystemBiosVersion	d40d2f142363cdf50cf8a5809fe06eb7_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	d40d2f142363cdf50cf8a5809fe06eb7_JaffaCakes118.exe

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
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
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
Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

Credentials In Files
T1552.001

Windows security modification 2 TTPs 2 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features	d40d2f142363cdf50cf8a5809fe06eb7_JaffaCakes118.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	d40d2f142363cdf50cf8a5809fe06eb7_JaffaCakes118.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	d40d2f142363cdf50cf8a5809fe06eb7_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	d40d2f142363cdf50cf8a5809fe06eb7_JaffaCakes118.exe
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	d40d2f142363cdf50cf8a5809fe06eb7_JaffaCakes118.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\MyApp = "C:\\Users\\Admin\\AppData\\Roaming\\MyApp\\MyApp.exe"	d40d2f142363cdf50cf8a5809fe06eb7_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	d40d2f142363cdf50cf8a5809fe06eb7_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	d40d2f142363cdf50cf8a5809fe06eb7_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2672 set thread context of 1648	2672	d40d2f142363cdf50cf8a5809fe06eb7_JaffaCakes118.exe	34

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	d40d2f142363cdf50cf8a5809fe06eb7_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d40d2f142363cdf50cf8a5809fe06eb7_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2724	powershell.exe
1648	d40d2f142363cdf50cf8a5809fe06eb7_JaffaCakes118.exe
1648	d40d2f142363cdf50cf8a5809fe06eb7_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2724	powershell.exe
Token: SeDebugPrivilege	1648	d40d2f142363cdf50cf8a5809fe06eb7_JaffaCakes118.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1648	d40d2f142363cdf50cf8a5809fe06eb7_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2672 wrote to memory of 2724	2672	d40d2f142363cdf50cf8a5809fe06eb7_JaffaCakes118.exe	31
PID 2672 wrote to memory of 2724	2672	d40d2f142363cdf50cf8a5809fe06eb7_JaffaCakes118.exe	31
PID 2672 wrote to memory of 2724	2672	d40d2f142363cdf50cf8a5809fe06eb7_JaffaCakes118.exe	31
PID 2672 wrote to memory of 2724	2672	d40d2f142363cdf50cf8a5809fe06eb7_JaffaCakes118.exe	31
PID 2672 wrote to memory of 1648	2672	d40d2f142363cdf50cf8a5809fe06eb7_JaffaCakes118.exe	34
PID 2672 wrote to memory of 1648	2672	d40d2f142363cdf50cf8a5809fe06eb7_JaffaCakes118.exe	34
PID 2672 wrote to memory of 1648	2672	d40d2f142363cdf50cf8a5809fe06eb7_JaffaCakes118.exe	34
PID 2672 wrote to memory of 1648	2672	d40d2f142363cdf50cf8a5809fe06eb7_JaffaCakes118.exe	34
PID 2672 wrote to memory of 1648	2672	d40d2f142363cdf50cf8a5809fe06eb7_JaffaCakes118.exe	34
PID 2672 wrote to memory of 1648	2672	d40d2f142363cdf50cf8a5809fe06eb7_JaffaCakes118.exe	34
PID 2672 wrote to memory of 1648	2672	d40d2f142363cdf50cf8a5809fe06eb7_JaffaCakes118.exe	34
PID 2672 wrote to memory of 1648	2672	d40d2f142363cdf50cf8a5809fe06eb7_JaffaCakes118.exe	34
PID 2672 wrote to memory of 1648	2672	d40d2f142363cdf50cf8a5809fe06eb7_JaffaCakes118.exe	34

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	d40d2f142363cdf50cf8a5809fe06eb7_JaffaCakes118.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	d40d2f142363cdf50cf8a5809fe06eb7_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\d40d2f142363cdf50cf8a5809fe06eb7_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d40d2f142363cdf50cf8a5809fe06eb7_JaffaCakes118.exe"
1⤵
- Modifies Windows Defender Real-time Protection settings
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Windows security modification
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2672
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell" Get-MpPreference -verbose
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2724
- C:\Users\Admin\AppData\Local\Temp\d40d2f142363cdf50cf8a5809fe06eb7_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\d40d2f142363cdf50cf8a5809fe06eb7_JaffaCakes118.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - outlook_office_path
  - outlook_win_path
  PID:1648

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

Virtualization/Sandbox Evasion

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Credentials in Registry

T1552.002

Discovery

Peripheral Device Discovery

T1120

Query Registry

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion