darkcomet | 9f2c1223bf1847e35f0e9c702518f7219e23e1460422e675da0c06f470481d8e

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\UserInit = "C:\\Windows\\system32\\userinit.exe,C:\\Windows\\system32\\Windupdt\\winlogon.exe"	virus bueno.exe

Windows security bypass 2 TTPs 1 IoCs

evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	explorer.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\SystemBiosDate	virus bueno.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	explorer.exe

Executes dropped EXE 1 IoCs

pid	Process
2336	virus bueno.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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\winlogon = "C:\\Windows\\system32\\Windupdt\\winlogon.exe"	virus bueno.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Windupdt\winlogon.exe	virus bueno.exe
File opened for modification	C:\Windows\SysWOW64\Windupdt\winlogon.exe	virus bueno.exe
File opened for modification	C:\Windows\SysWOW64\Windupdt\	virus bueno.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2336 set thread context of 2376	2336	virus bueno.exe	32

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	ping.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	virus bueno.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	explorer.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
2684	ping.exe

Checks processor information in registry 2 TTPs 8 IoCs

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

Query Registry

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	virus bueno.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	virus bueno.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	virus bueno.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	virus bueno.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	explorer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\VendorIdentifier	explorer.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	virus bueno.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	explorer.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2684	ping.exe

Suspicious use of AdjustPrivilegeToken 47 IoCs

description	pid	Process
Token: SeDebugPrivilege	1984	5e08f13a37341ae48c3fde4d5437d24c_JaffaCakes118.exe
Token: SeIncreaseQuotaPrivilege	2336	virus bueno.exe
Token: SeSecurityPrivilege	2336	virus bueno.exe
Token: SeTakeOwnershipPrivilege	2336	virus bueno.exe
Token: SeLoadDriverPrivilege	2336	virus bueno.exe
Token: SeSystemProfilePrivilege	2336	virus bueno.exe
Token: SeSystemtimePrivilege	2336	virus bueno.exe
Token: SeProfSingleProcessPrivilege	2336	virus bueno.exe
Token: SeIncBasePriorityPrivilege	2336	virus bueno.exe
Token: SeCreatePagefilePrivilege	2336	virus bueno.exe
Token: SeBackupPrivilege	2336	virus bueno.exe
Token: SeRestorePrivilege	2336	virus bueno.exe
Token: SeShutdownPrivilege	2336	virus bueno.exe
Token: SeDebugPrivilege	2336	virus bueno.exe
Token: SeSystemEnvironmentPrivilege	2336	virus bueno.exe
Token: SeChangeNotifyPrivilege	2336	virus bueno.exe
Token: SeRemoteShutdownPrivilege	2336	virus bueno.exe
Token: SeUndockPrivilege	2336	virus bueno.exe
Token: SeManageVolumePrivilege	2336	virus bueno.exe
Token: SeImpersonatePrivilege	2336	virus bueno.exe
Token: SeCreateGlobalPrivilege	2336	virus bueno.exe
Token: 33	2336	virus bueno.exe
Token: 34	2336	virus bueno.exe
Token: 35	2336	virus bueno.exe
Token: SeIncreaseQuotaPrivilege	2376	explorer.exe
Token: SeSecurityPrivilege	2376	explorer.exe
Token: SeTakeOwnershipPrivilege	2376	explorer.exe
Token: SeLoadDriverPrivilege	2376	explorer.exe
Token: SeSystemProfilePrivilege	2376	explorer.exe
Token: SeSystemtimePrivilege	2376	explorer.exe
Token: SeProfSingleProcessPrivilege	2376	explorer.exe
Token: SeIncBasePriorityPrivilege	2376	explorer.exe
Token: SeCreatePagefilePrivilege	2376	explorer.exe
Token: SeBackupPrivilege	2376	explorer.exe
Token: SeRestorePrivilege	2376	explorer.exe
Token: SeShutdownPrivilege	2376	explorer.exe
Token: SeDebugPrivilege	2376	explorer.exe
Token: SeSystemEnvironmentPrivilege	2376	explorer.exe
Token: SeChangeNotifyPrivilege	2376	explorer.exe
Token: SeRemoteShutdownPrivilege	2376	explorer.exe
Token: SeUndockPrivilege	2376	explorer.exe
Token: SeManageVolumePrivilege	2376	explorer.exe
Token: SeImpersonatePrivilege	2376	explorer.exe
Token: SeCreateGlobalPrivilege	2376	explorer.exe
Token: 33	2376	explorer.exe
Token: 34	2376	explorer.exe
Token: 35	2376	explorer.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2376	explorer.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1984 wrote to memory of 2336	1984	5e08f13a37341ae48c3fde4d5437d24c_JaffaCakes118.exe	31
PID 1984 wrote to memory of 2336	1984	5e08f13a37341ae48c3fde4d5437d24c_JaffaCakes118.exe	31
PID 1984 wrote to memory of 2336	1984	5e08f13a37341ae48c3fde4d5437d24c_JaffaCakes118.exe	31
PID 1984 wrote to memory of 2336	1984	5e08f13a37341ae48c3fde4d5437d24c_JaffaCakes118.exe	31
PID 2336 wrote to memory of 2376	2336	virus bueno.exe	32
PID 2336 wrote to memory of 2376	2336	virus bueno.exe	32
PID 2336 wrote to memory of 2376	2336	virus bueno.exe	32
PID 2336 wrote to memory of 2376	2336	virus bueno.exe	32
PID 2336 wrote to memory of 2376	2336	virus bueno.exe	32
PID 2336 wrote to memory of 2376	2336	virus bueno.exe	32
PID 2336 wrote to memory of 2684	2336	virus bueno.exe	33
PID 2336 wrote to memory of 2684	2336	virus bueno.exe	33
PID 2336 wrote to memory of 2684	2336	virus bueno.exe	33
PID 2336 wrote to memory of 2684	2336	virus bueno.exe	33

C:\Users\Admin\AppData\Local\Temp\5e08f13a37341ae48c3fde4d5437d24c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\5e08f13a37341ae48c3fde4d5437d24c_JaffaCakes118.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1984
- C:\Users\Admin\AppData\Roaming\jyizznXbIjSoJnpZJFAay\jyizznXbIjSoJnpZJFAay\1.4.4.0\virus bueno.exe
  "C:\Users\Admin\AppData\Roaming\jyizznXbIjSoJnpZJFAay\jyizznXbIjSoJnpZJFAay\1.4.4.0\virus bueno.exe" /default parameters
  2⤵
  - Modifies WinLogon for persistence
  - Checks BIOS information in registry
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in System32 directory
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2336
- - C:\Windows\SysWOW64\explorer.exe
    "C:\Windows\SysWOW64\explorer.exe"
    3⤵
    - Windows security bypass
    - Checks BIOS information in registry
    - System Location Discovery: System Language Discovery
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:2376
- - C:\Windows\SysWOW64\ping.exe
    ping 127.0.0.1 -n 5 > NUL del "C:\Users\Admin\AppData\Roaming\jyizznXbIjSoJnpZJFAay\jyizznXbIjSoJnpZJFAay\1.4.4.0\virus bueno.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:2684

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

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

Credential Access

Discovery

Query Registry

Remote System Discovery

T1018

System Information Discovery