agenttesla | a65c812000900485065a8a2d13fed88aeb45077d8bd14424fe4a3a363e147e14

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Oracle\VirtualBox Guest Additions	d19a8b68191b847d63e12b7d1359c311_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	d19a8b68191b847d63e12b7d1359c311_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	d19a8b68191b847d63e12b7d1359c311_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	d19a8b68191b847d63e12b7d1359c311_JaffaCakes118.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\HgDyJH = "C:\\Users\\Admin\\AppData\\Roaming\\HgDyJH\\HgDyJH.exe"	d19a8b68191b847d63e12b7d1359c311_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	d19a8b68191b847d63e12b7d1359c311_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	d19a8b68191b847d63e12b7d1359c311_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 684 set thread context of 2852	684	d19a8b68191b847d63e12b7d1359c311_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	d19a8b68191b847d63e12b7d1359c311_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d19a8b68191b847d63e12b7d1359c311_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
960	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2852	d19a8b68191b847d63e12b7d1359c311_JaffaCakes118.exe
2852	d19a8b68191b847d63e12b7d1359c311_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2852	d19a8b68191b847d63e12b7d1359c311_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 684 wrote to memory of 960	684	d19a8b68191b847d63e12b7d1359c311_JaffaCakes118.exe	31
PID 684 wrote to memory of 960	684	d19a8b68191b847d63e12b7d1359c311_JaffaCakes118.exe	31
PID 684 wrote to memory of 960	684	d19a8b68191b847d63e12b7d1359c311_JaffaCakes118.exe	31
PID 684 wrote to memory of 960	684	d19a8b68191b847d63e12b7d1359c311_JaffaCakes118.exe	31
PID 684 wrote to memory of 2852	684	d19a8b68191b847d63e12b7d1359c311_JaffaCakes118.exe	33
PID 684 wrote to memory of 2852	684	d19a8b68191b847d63e12b7d1359c311_JaffaCakes118.exe	33
PID 684 wrote to memory of 2852	684	d19a8b68191b847d63e12b7d1359c311_JaffaCakes118.exe	33
PID 684 wrote to memory of 2852	684	d19a8b68191b847d63e12b7d1359c311_JaffaCakes118.exe	33
PID 684 wrote to memory of 2852	684	d19a8b68191b847d63e12b7d1359c311_JaffaCakes118.exe	33
PID 684 wrote to memory of 2852	684	d19a8b68191b847d63e12b7d1359c311_JaffaCakes118.exe	33
PID 684 wrote to memory of 2852	684	d19a8b68191b847d63e12b7d1359c311_JaffaCakes118.exe	33
PID 684 wrote to memory of 2852	684	d19a8b68191b847d63e12b7d1359c311_JaffaCakes118.exe	33
PID 684 wrote to memory of 2852	684	d19a8b68191b847d63e12b7d1359c311_JaffaCakes118.exe	33

C:\Users\Admin\AppData\Local\Temp\d19a8b68191b847d63e12b7d1359c311_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d19a8b68191b847d63e12b7d1359c311_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:684
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\aPCQCnAi" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2C6D.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:960
- C:\Users\Admin\AppData\Local\Temp\d19a8b68191b847d63e12b7d1359c311_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\d19a8b68191b847d63e12b7d1359c311_JaffaCakes118.exe"
  2⤵
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2852

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

Defense Evasion

Modify Registry

T1112

Virtualization/Sandbox Evasion

2

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

3

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion

2