remcos | d6b0deb424fc3aa7bcb783f29c826fd5505878a95f24586eecb0d0f086d34dd3

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\winmap = "\"C:\\Users\\Admin\\AppData\\Roaming\\winmap\\winmap.exe\""	winmap.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	JaffaCakes118_cfbc12724a70e40d2c8198e0b6b7a31b.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\winmap = "\"C:\\Users\\Admin\\AppData\\Roaming\\winmap\\winmap.exe\""	JaffaCakes118_cfbc12724a70e40d2c8198e0b6b7a31b.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	winmap.exe

Checks BIOS information in registry 2 TTPs 4 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	JaffaCakes118_cfbc12724a70e40d2c8198e0b6b7a31b.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	winmap.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	winmap.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	JaffaCakes118_cfbc12724a70e40d2c8198e0b6b7a31b.exe

Deletes itself 1 IoCs

pid	Process
2572	WScript.exe

Executes dropped EXE 1 IoCs

pid	Process
2704	winmap.exe

Loads dropped DLL 1 IoCs

pid	Process
1316	cmd.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\winmap = "\"C:\\Users\\Admin\\AppData\\Roaming\\winmap\\winmap.exe\""	winmap.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\winmap = "\"C:\\Users\\Admin\\AppData\\Roaming\\winmap\\winmap.exe\""	JaffaCakes118_cfbc12724a70e40d2c8198e0b6b7a31b.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\winmap = "\"C:\\Users\\Admin\\AppData\\Roaming\\winmap\\winmap.exe\""	JaffaCakes118_cfbc12724a70e40d2c8198e0b6b7a31b.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\winmap = "\"C:\\Users\\Admin\\AppData\\Roaming\\winmap\\winmap.exe\""	winmap.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	JaffaCakes118_cfbc12724a70e40d2c8198e0b6b7a31b.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	winmap.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs

pid	Process
2328	JaffaCakes118_cfbc12724a70e40d2c8198e0b6b7a31b.exe
2704	winmap.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 4 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	winmap.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_cfbc12724a70e40d2c8198e0b6b7a31b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WScript.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2328	JaffaCakes118_cfbc12724a70e40d2c8198e0b6b7a31b.exe
2704	winmap.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2328 wrote to memory of 2572	2328	JaffaCakes118_cfbc12724a70e40d2c8198e0b6b7a31b.exe	30
PID 2328 wrote to memory of 2572	2328	JaffaCakes118_cfbc12724a70e40d2c8198e0b6b7a31b.exe	30
PID 2328 wrote to memory of 2572	2328	JaffaCakes118_cfbc12724a70e40d2c8198e0b6b7a31b.exe	30
PID 2328 wrote to memory of 2572	2328	JaffaCakes118_cfbc12724a70e40d2c8198e0b6b7a31b.exe	30
PID 2572 wrote to memory of 1316	2572	WScript.exe	31
PID 2572 wrote to memory of 1316	2572	WScript.exe	31
PID 2572 wrote to memory of 1316	2572	WScript.exe	31
PID 2572 wrote to memory of 1316	2572	WScript.exe	31
PID 1316 wrote to memory of 2704	1316	cmd.exe	33
PID 1316 wrote to memory of 2704	1316	cmd.exe	33
PID 1316 wrote to memory of 2704	1316	cmd.exe	33
PID 1316 wrote to memory of 2704	1316	cmd.exe	33
PID 2704 wrote to memory of 964	2704	winmap.exe	35
PID 2704 wrote to memory of 964	2704	winmap.exe	35
PID 2704 wrote to memory of 964	2704	winmap.exe	35
PID 2704 wrote to memory of 964	2704	winmap.exe	35

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cfbc12724a70e40d2c8198e0b6b7a31b.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_cfbc12724a70e40d2c8198e0b6b7a31b.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Adds policy Run key to start application
- Checks BIOS information in registry
- Adds Run key to start application
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2328
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2572
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c "C:\Users\Admin\AppData\Roaming\winmap\winmap.exe"
    3⤵
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1316
  - - C:\Users\Admin\AppData\Roaming\winmap\winmap.exe
      C:\Users\Admin\AppData\Roaming\winmap\winmap.exe
      4⤵
      Identifies VirtualBox via ACPI registry values (likely anti-VM)
      Adds policy Run key to start application
      Checks BIOS information in registry
      Executes dropped EXE
      Adds Run key to start application
      Checks whether UAC is enabled
      Suspicious use of NtSetInformationThreadHideFromDebugger
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:2704
    - - C:\Windows\SysWOW64\svchost.exe
        
        C:\Windows\SysWOW64\svchost.exe
        5⤵
        
        PID:964

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

Defense Evasion

Modify Registry

T1112

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

3

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion