xpertrat | e22a21011a6e843389fbbe8cab856a3ba7ecc184c779e2767cc91e666fa7b66a

Bypass User Account Control

T1548.002

Disable or Modify Tools

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	frm_QANATS.exe

Windows security bypass 2 TTPs 1 IoCs

Disable or Modify Tools

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UACDisableNotify = "0"	frm_QANATS.exe

XpertRAT
XpertRAT is a remote access trojan with various capabilities.
rat xpertrat

XpertRAT Core payload 1 IoCs

resource	yara_rule
behavioral1/memory/2520-44-0x0000000000400000-0x0000000000443000-memory.dmp	xpertrat

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run	iexplore.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\B2H6Y3K0-Y7X5-B5F3-N3W1-K4A558N0M337 = "C:\\Users\\Admin\\AppData\\Roaming\\B2H6Y3K0-Y7X5-B5F3-N3W1-K4A558N0M337\\B2H6Y3K0-Y7X5-B5F3-N3W1-K4A558N0M337.exe"	iexplore.exe

Executes dropped EXE 3 IoCs

pid	Process
2988	frm_QANATS.exe
2660	frm_QANATS.exe
2904	frm_QANATS.exe

Loads dropped DLL 4 IoCs

pid	Process
2116	6962527d9ac313319bd2b87cd12ab32c_JaffaCakes118.exe
2116	6962527d9ac313319bd2b87cd12ab32c_JaffaCakes118.exe
2988	frm_QANATS.exe
2660	frm_QANATS.exe

Windows security modification 2 TTPs 1 IoCs

Disable or Modify Tools

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UACDisableNotify = "0"	frm_QANATS.exe

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce\frm_Roldan = "wscript \"C:\\Users\\Admin\\AppData\\Local\\Temp\\frm_QANATS.vbs\""	frm_QANATS.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2737914667-933161113-3798636211-1000\Software\Microsoft\Windows\CurrentVersion\Run\B2H6Y3K0-Y7X5-B5F3-N3W1-K4A558N0M337 = "C:\\Users\\Admin\\AppData\\Roaming\\B2H6Y3K0-Y7X5-B5F3-N3W1-K4A558N0M337\\B2H6Y3K0-Y7X5-B5F3-N3W1-K4A558N0M337.exe"	iexplore.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\B2H6Y3K0-Y7X5-B5F3-N3W1-K4A558N0M337 = "C:\\Users\\Admin\\AppData\\Roaming\\B2H6Y3K0-Y7X5-B5F3-N3W1-K4A558N0M337\\B2H6Y3K0-Y7X5-B5F3-N3W1-K4A558N0M337.exe"	iexplore.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

System Information Discovery

T1082

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	frm_QANATS.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 836 set thread context of 2116	836	6962527d9ac313319bd2b87cd12ab32c_JaffaCakes118.exe	28
PID 2988 set thread context of 2660	2988	frm_QANATS.exe	30
PID 2660 set thread context of 2904	2660	frm_QANATS.exe	31
PID 2904 set thread context of 2520	2904	frm_QANATS.exe	32

Drops file in Windows directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\win.ini	6962527d9ac313319bd2b87cd12ab32c_JaffaCakes118.exe
File opened for modification	C:\Windows\win.ini	6962527d9ac313319bd2b87cd12ab32c_JaffaCakes118.exe
File opened for modification	C:\Windows\win.ini	frm_QANATS.exe
File opened for modification	C:\Windows\win.ini	frm_QANATS.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2904	frm_QANATS.exe
2904	frm_QANATS.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2520	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
836	6962527d9ac313319bd2b87cd12ab32c_JaffaCakes118.exe
2116	6962527d9ac313319bd2b87cd12ab32c_JaffaCakes118.exe
2988	frm_QANATS.exe
2660	frm_QANATS.exe
2904	frm_QANATS.exe
2520	iexplore.exe

Suspicious use of WriteProcessMemory 31 IoCs

description	pid	Process	procid_target
PID 836 wrote to memory of 2116	836	6962527d9ac313319bd2b87cd12ab32c_JaffaCakes118.exe	28
PID 836 wrote to memory of 2116	836	6962527d9ac313319bd2b87cd12ab32c_JaffaCakes118.exe	28
PID 836 wrote to memory of 2116	836	6962527d9ac313319bd2b87cd12ab32c_JaffaCakes118.exe	28
PID 836 wrote to memory of 2116	836	6962527d9ac313319bd2b87cd12ab32c_JaffaCakes118.exe	28
PID 2116 wrote to memory of 2988	2116	6962527d9ac313319bd2b87cd12ab32c_JaffaCakes118.exe	29
PID 2116 wrote to memory of 2988	2116	6962527d9ac313319bd2b87cd12ab32c_JaffaCakes118.exe	29
PID 2116 wrote to memory of 2988	2116	6962527d9ac313319bd2b87cd12ab32c_JaffaCakes118.exe	29
PID 2116 wrote to memory of 2988	2116	6962527d9ac313319bd2b87cd12ab32c_JaffaCakes118.exe	29
PID 2988 wrote to memory of 2660	2988	frm_QANATS.exe	30
PID 2988 wrote to memory of 2660	2988	frm_QANATS.exe	30
PID 2988 wrote to memory of 2660	2988	frm_QANATS.exe	30
PID 2988 wrote to memory of 2660	2988	frm_QANATS.exe	30
PID 2660 wrote to memory of 2904	2660	frm_QANATS.exe	31
PID 2660 wrote to memory of 2904	2660	frm_QANATS.exe	31
PID 2660 wrote to memory of 2904	2660	frm_QANATS.exe	31
PID 2660 wrote to memory of 2904	2660	frm_QANATS.exe	31
PID 2660 wrote to memory of 2904	2660	frm_QANATS.exe	31
PID 2660 wrote to memory of 2904	2660	frm_QANATS.exe	31
PID 2660 wrote to memory of 2904	2660	frm_QANATS.exe	31
PID 2660 wrote to memory of 2904	2660	frm_QANATS.exe	31
PID 2660 wrote to memory of 2904	2660	frm_QANATS.exe	31
PID 2660 wrote to memory of 2904	2660	frm_QANATS.exe	31
PID 2904 wrote to memory of 2520	2904	frm_QANATS.exe	32
PID 2904 wrote to memory of 2520	2904	frm_QANATS.exe	32
PID 2904 wrote to memory of 2520	2904	frm_QANATS.exe	32
PID 2904 wrote to memory of 2520	2904	frm_QANATS.exe	32
PID 2904 wrote to memory of 2520	2904	frm_QANATS.exe	32
PID 2904 wrote to memory of 2520	2904	frm_QANATS.exe	32
PID 2904 wrote to memory of 2520	2904	frm_QANATS.exe	32
PID 2904 wrote to memory of 2520	2904	frm_QANATS.exe	32
PID 2904 wrote to memory of 2520	2904	frm_QANATS.exe	32

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	frm_QANATS.exe

C:\Users\Admin\AppData\Local\Temp\6962527d9ac313319bd2b87cd12ab32c_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\6962527d9ac313319bd2b87cd12ab32c_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:836
- C:\Users\Admin\AppData\Local\Temp\6962527d9ac313319bd2b87cd12ab32c_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\6962527d9ac313319bd2b87cd12ab32c_JaffaCakes118.exe"
  2⤵
  - Loads dropped DLL
  - Drops file in Windows directory
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2116
- - C:\Users\Admin\AppData\Local\Temp\frm_QANATS.exe
    "C:\Users\Admin\AppData\Local\Temp\frm_QANATS.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Adds Run key to start application
    - Suspicious use of SetThreadContext
    - Drops file in Windows directory
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:2988
  - - C:\Users\Admin\AppData\Local\Temp\frm_QANATS.exe
      "C:\Users\Admin\AppData\Local\Temp\frm_QANATS.exe"
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Suspicious use of SetThreadContext
      Drops file in Windows directory
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:2660
    - - C:\Users\Admin\AppData\Local\Temp\frm_QANATS.exe
        
        "C:\Users\Admin\AppData\Local\Temp\frm_QANATS.exe"
        5⤵
        UAC bypass
        Windows security bypass
        Executes dropped EXE
        Windows security modification
        Checks whether UAC is enabled
        Suspicious use of SetThreadContext
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        System policy modification
        
        PID:2904
      - C:\Program Files (x86)\Internet Explorer\iexplore.exe
        
        C:\Users\Admin\AppData\Local\Temp\frm_QANATS.exe
        6⤵
        Adds policy Run key to start application
        Adds Run key to start application
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of SetWindowsHookEx
        
        PID:2520

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

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Impair Defenses

T1562

Disable or Modify Tools

Modify Registry