e0375f90963663238e25c76df5dccfe753f2ee62bb5c73767d7f0745eb29d5b5

Windows Service

T1543.003

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wscsvc\Start = "4"	rundll32.exe

Windows security bypass 2 TTPs 5 IoCs

defense_evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	rundll32.exe

Blocklisted process makes network request 2 IoCs

flow	pid	Process
47	4040	rundll32.exe
54	4040	rundll32.exe

Modifies Shared Task Scheduler registry keys 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\SharedTaskScheduler	exeha2.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\SharedTaskScheduler\{F33812FB-F35C-4674-90F6-FD757C419C51} = "DDE"	exeha2.exe

Event Triggered Execution: Component Object Model Hijacking 1 TTPs
Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.
persistence privilege_escalation

Component Object Model Hijacking
T1546.015

Executes dropped EXE 3 IoCs

pid	Process
3488	exeha2.exe
2396	exeha3.exe
1412	services.exe

Loads dropped DLL 5 IoCs

pid	Process
3488	exeha2.exe
3488	exeha2.exe
3488	exeha2.exe
3488	exeha2.exe
4040	rundll32.exe

Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003

Windows security modification 2 TTPs 5 IoCs

defense_evasion trojan

Disable or Modify Tools

T1562.001

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1"	rundll32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1"	rundll32.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\xp_system = "C:\\Windows\\inet20099\\services.exe"	services.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\xp_system = "C:\\Windows\\inet20099\\services.exe"	services.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\exeha2.exe	JaffaCakes118_279ccd16a9d80a66314b62a23cbd239a.exe
File created	C:\Windows\SysWOW64\exeha3.exe	JaffaCakes118_279ccd16a9d80a66314b62a23cbd239a.exe
File created	C:\Windows\SysWOW64\birdihuy32.dll	exeha2.exe
File created	C:\Windows\SysWOW64\birdihuy.dll	exeha2.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\inet20099\services.exe	exeha3.exe
File opened for modification	C:\Windows\inet20099\services.exe	exeha3.exe
File opened for modification	C:\Windows\system.ini	services.exe

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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	exeha3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	services.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_279ccd16a9d80a66314b62a23cbd239a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	exeha2.exe

Modifies Internet Explorer settings 1 TTPs 5 IoCs

adware spyware

Modify Registry

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\Security	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\Security\sox_id = "117365117277"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Software\Microsoft\Internet Explorer\Security	rundll32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\Security\rpt = "9632"	rundll32.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Internet Explorer\Security\sox_ver = "0"	rundll32.exe

Modifies registry class 6 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000_Classes\WOW6432Node\CLSID\{F33812FB-F35C-4674-90F6-FD757C419C51}\InProcServer32	exeha2.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000_Classes\WOW6432Node	exeha2.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000_Classes\WOW6432Node\CLSID	exeha2.exe
Key created	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000_Classes\WOW6432Node\CLSID\{F33812FB-F35C-4674-90F6-FD757C419C51}	exeha2.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000_Classes\WOW6432Node\CLSID\{F33812FB-F35C-4674-90F6-FD757C419C51}\InProcServer32\ = "C:\\Windows\\SysWow64\\birdihuy32.dll"	exeha2.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000_Classes\WOW6432Node\CLSID\{F33812FB-F35C-4674-90F6-FD757C419C51}\InProcServer32\ThreadingModel = "Apartment"	exeha2.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 752 wrote to memory of 3488	752	JaffaCakes118_279ccd16a9d80a66314b62a23cbd239a.exe	82
PID 752 wrote to memory of 3488	752	JaffaCakes118_279ccd16a9d80a66314b62a23cbd239a.exe	82
PID 752 wrote to memory of 3488	752	JaffaCakes118_279ccd16a9d80a66314b62a23cbd239a.exe	82
PID 3488 wrote to memory of 4040	3488	exeha2.exe	83
PID 3488 wrote to memory of 4040	3488	exeha2.exe	83
PID 3488 wrote to memory of 4040	3488	exeha2.exe	83
PID 752 wrote to memory of 2396	752	JaffaCakes118_279ccd16a9d80a66314b62a23cbd239a.exe	84
PID 752 wrote to memory of 2396	752	JaffaCakes118_279ccd16a9d80a66314b62a23cbd239a.exe	84
PID 752 wrote to memory of 2396	752	JaffaCakes118_279ccd16a9d80a66314b62a23cbd239a.exe	84
PID 2396 wrote to memory of 1412	2396	exeha3.exe	85
PID 2396 wrote to memory of 1412	2396	exeha3.exe	85
PID 2396 wrote to memory of 1412	2396	exeha3.exe	85

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_279ccd16a9d80a66314b62a23cbd239a.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_279ccd16a9d80a66314b62a23cbd239a.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:752
- C:\Windows\SysWOW64\exeha2.exe
  C:\Windows\system32\exeha2.exe
  2⤵
  - Modifies Shared Task Scheduler registry keys
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:3488
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Windows\system32\birdihuy32.dll, load
    3⤵
    - Modifies security service
    - Windows security bypass
    - Blocklisted process makes network request
    - Loads dropped DLL
    - Windows security modification
    - System Location Discovery: System Language Discovery
    - Modifies Internet Explorer settings
    PID:4040
- C:\Windows\SysWOW64\exeha3.exe
  C:\Windows\system32\exeha3.exe
  2⤵
  - Executes dropped EXE
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2396
- - C:\Windows\inet20099\services.exe
    C:\Windows\inet20099\services.exe
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Drops file in Windows directory
    - System Location Discovery: System Language Discovery
    PID:1412

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Component Object Model Hijacking

T1546.015

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

Create or Modify System Process

T1543

Windows Service

T1543.003

Event Triggered Execution

T1546

Component Object Model Hijacking

T1546.015

Defense Evasion

Impair Defenses

T1562

Disable or Modify Tools

Modify Registry

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System