nanocore | 2ca10772cb2fd2551b013a2ecd934a118331d64ad649811a5cb91a4ec4e20da8

Virtualization/Sandbox Evasion

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Oracle\VirtualBox Guest Additions	fc2e53fb2e97b0aff5807ca7ecd22a9e_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	fc2e53fb2e97b0aff5807ca7ecd22a9e_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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	fc2e53fb2e97b0aff5807ca7ecd22a9e_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	fc2e53fb2e97b0aff5807ca7ecd22a9e_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\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\DPI Subsystem = "C:\\Program Files (x86)\\DPI Subsystem\\dpiss.exe"	fc2e53fb2e97b0aff5807ca7ecd22a9e_JaffaCakes118.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	fc2e53fb2e97b0aff5807ca7ecd22a9e_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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	fc2e53fb2e97b0aff5807ca7ecd22a9e_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	fc2e53fb2e97b0aff5807ca7ecd22a9e_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2096 set thread context of 2604	2096	fc2e53fb2e97b0aff5807ca7ecd22a9e_JaffaCakes118.exe	34

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\DPI Subsystem\dpiss.exe	fc2e53fb2e97b0aff5807ca7ecd22a9e_JaffaCakes118.exe
File opened for modification	C:\Program Files (x86)\DPI Subsystem\dpiss.exe	fc2e53fb2e97b0aff5807ca7ecd22a9e_JaffaCakes118.exe

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 5 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	fc2e53fb2e97b0aff5807ca7ecd22a9e_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fc2e53fb2e97b0aff5807ca7ecd22a9e_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs

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

persistence execution

Scheduled Task

pid	Process
2584	schtasks.exe
1028	schtasks.exe
2940	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2604	fc2e53fb2e97b0aff5807ca7ecd22a9e_JaffaCakes118.exe
2604	fc2e53fb2e97b0aff5807ca7ecd22a9e_JaffaCakes118.exe
2604	fc2e53fb2e97b0aff5807ca7ecd22a9e_JaffaCakes118.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2604	fc2e53fb2e97b0aff5807ca7ecd22a9e_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2604	fc2e53fb2e97b0aff5807ca7ecd22a9e_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2096 wrote to memory of 2584	2096	fc2e53fb2e97b0aff5807ca7ecd22a9e_JaffaCakes118.exe	32
PID 2096 wrote to memory of 2584	2096	fc2e53fb2e97b0aff5807ca7ecd22a9e_JaffaCakes118.exe	32
PID 2096 wrote to memory of 2584	2096	fc2e53fb2e97b0aff5807ca7ecd22a9e_JaffaCakes118.exe	32
PID 2096 wrote to memory of 2584	2096	fc2e53fb2e97b0aff5807ca7ecd22a9e_JaffaCakes118.exe	32
PID 2096 wrote to memory of 2604	2096	fc2e53fb2e97b0aff5807ca7ecd22a9e_JaffaCakes118.exe	34
PID 2096 wrote to memory of 2604	2096	fc2e53fb2e97b0aff5807ca7ecd22a9e_JaffaCakes118.exe	34
PID 2096 wrote to memory of 2604	2096	fc2e53fb2e97b0aff5807ca7ecd22a9e_JaffaCakes118.exe	34
PID 2096 wrote to memory of 2604	2096	fc2e53fb2e97b0aff5807ca7ecd22a9e_JaffaCakes118.exe	34
PID 2096 wrote to memory of 2604	2096	fc2e53fb2e97b0aff5807ca7ecd22a9e_JaffaCakes118.exe	34
PID 2096 wrote to memory of 2604	2096	fc2e53fb2e97b0aff5807ca7ecd22a9e_JaffaCakes118.exe	34
PID 2096 wrote to memory of 2604	2096	fc2e53fb2e97b0aff5807ca7ecd22a9e_JaffaCakes118.exe	34
PID 2096 wrote to memory of 2604	2096	fc2e53fb2e97b0aff5807ca7ecd22a9e_JaffaCakes118.exe	34
PID 2096 wrote to memory of 2604	2096	fc2e53fb2e97b0aff5807ca7ecd22a9e_JaffaCakes118.exe	34
PID 2604 wrote to memory of 1028	2604	fc2e53fb2e97b0aff5807ca7ecd22a9e_JaffaCakes118.exe	35
PID 2604 wrote to memory of 1028	2604	fc2e53fb2e97b0aff5807ca7ecd22a9e_JaffaCakes118.exe	35
PID 2604 wrote to memory of 1028	2604	fc2e53fb2e97b0aff5807ca7ecd22a9e_JaffaCakes118.exe	35
PID 2604 wrote to memory of 1028	2604	fc2e53fb2e97b0aff5807ca7ecd22a9e_JaffaCakes118.exe	35
PID 2604 wrote to memory of 2940	2604	fc2e53fb2e97b0aff5807ca7ecd22a9e_JaffaCakes118.exe	37
PID 2604 wrote to memory of 2940	2604	fc2e53fb2e97b0aff5807ca7ecd22a9e_JaffaCakes118.exe	37
PID 2604 wrote to memory of 2940	2604	fc2e53fb2e97b0aff5807ca7ecd22a9e_JaffaCakes118.exe	37
PID 2604 wrote to memory of 2940	2604	fc2e53fb2e97b0aff5807ca7ecd22a9e_JaffaCakes118.exe	37

C:\Users\Admin\AppData\Local\Temp\fc2e53fb2e97b0aff5807ca7ecd22a9e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fc2e53fb2e97b0aff5807ca7ecd22a9e_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:2096
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xxQWKrYqbg" /XML "C:\Users\Admin\AppData\Local\Temp\tmp93C7.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2584
- C:\Users\Admin\AppData\Local\Temp\fc2e53fb2e97b0aff5807ca7ecd22a9e_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\fc2e53fb2e97b0aff5807ca7ecd22a9e_JaffaCakes118.exe"
  2⤵
  - Adds Run key to start application
  - Checks whether UAC is enabled
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2604
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DPI Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp9685.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:1028
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DPI Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp96C4.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2940

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

4

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion

2