Analysis Overview
SHA256
c052755bf3cab34b18f346c176d9c20c296dd4010b818a424d763625eeb6ff92
Threat Level: Known bad
The file d33732b691720be2cef97957e40bb69e.exe was found to be: Known bad.
Malicious Activity Summary
XpertRAT Core Payload
Windows security bypass
XpertRAT
UAC bypass
Adds policy Run key to start application
Windows security modification
Checks whether UAC is enabled
Adds Run key to start application
Suspicious use of SetThreadContext
Suspicious use of SetWindowsHookEx
System policy modification
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2021-07-22 15:37
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2021-07-13 14:14
Reported
2021-07-13 14:17
Platform
win7v20210410
Max time kernel
145s
Max time network
176s
Command Line
Signatures
UAC bypass
Windows security bypass
XpertRAT
XpertRAT Core Payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Adds policy Run key to start application
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\X550V6H4-V1N8-X8C6-D6T5-A7W0Q2D4J7R2 = "C:\\Users\\Admin\\AppData\\Roaming\\X550V6H4-V1N8-X8C6-D6T5-A7W0Q2D4J7R2\\X550V6H4-V1N8-X8C6-D6T5-A7W0Q2D4J7R2.exe" | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
Windows security modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Security Center\UACDisableNotify = "0" | C:\Users\Admin\AppData\Local\Temp\d33732b691720be2cef97957e40bb69e.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows\CurrentVersion\Run\X550V6H4-V1N8-X8C6-D6T5-A7W0Q2D4J7R2 = "C:\\Users\\Admin\\AppData\\Roaming\\X550V6H4-V1N8-X8C6-D6T5-A7W0Q2D4J7R2\\X550V6H4-V1N8-X8C6-D6T5-A7W0Q2D4J7R2.exe" | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\X550V6H4-V1N8-X8C6-D6T5-A7W0Q2D4J7R2 = "C:\\Users\\Admin\\AppData\\Roaming\\X550V6H4-V1N8-X8C6-D6T5-A7W0Q2D4J7R2\\X550V6H4-V1N8-X8C6-D6T5-A7W0Q2D4J7R2.exe" | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
Checks whether UAC is enabled
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Users\Admin\AppData\Local\Temp\d33732b691720be2cef97957e40bb69e.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1856 set thread context of 368 | N/A | C:\Users\Admin\AppData\Local\Temp\d33732b691720be2cef97957e40bb69e.exe | C:\Users\Admin\AppData\Local\Temp\d33732b691720be2cef97957e40bb69e.exe |
| PID 368 set thread context of 820 | N/A | C:\Users\Admin\AppData\Local\Temp\d33732b691720be2cef97957e40bb69e.exe | C:\Program Files (x86)\Internet Explorer\iexplore.exe |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\d33732b691720be2cef97957e40bb69e.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\d33732b691720be2cef97957e40bb69e.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\d33732b691720be2cef97957e40bb69e.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\d33732b691720be2cef97957e40bb69e.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\d33732b691720be2cef97957e40bb69e.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\d33732b691720be2cef97957e40bb69e.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\d33732b691720be2cef97957e40bb69e.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\d33732b691720be2cef97957e40bb69e.exe | N/A |
| N/A | N/A | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
Suspicious use of WriteProcessMemory
System policy modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Users\Admin\AppData\Local\Temp\d33732b691720be2cef97957e40bb69e.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\d33732b691720be2cef97957e40bb69e.exe
"C:\Users\Admin\AppData\Local\Temp\d33732b691720be2cef97957e40bb69e.exe"
C:\Users\Admin\AppData\Local\Temp\d33732b691720be2cef97957e40bb69e.exe
C:\Users\Admin\AppData\Local\Temp\d33732b691720be2cef97957e40bb69e.exe
C:\Program Files (x86)\Internet Explorer\iexplore.exe
C:\Users\Admin\AppData\Local\Temp\d33732b691720be2cef97957e40bb69e.exe
Network
| Country | Destination | Domain | Proto |
| N/A | 8.8.8.8:53 | oklahama.ydns.eu | udp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
Files
memory/1856-59-0x0000000000AE0000-0x0000000000AE1000-memory.dmp
memory/1856-61-0x0000000004440000-0x0000000004441000-memory.dmp
memory/1856-62-0x0000000000A40000-0x0000000000A98000-memory.dmp
memory/1856-67-0x0000000005090000-0x00000000050E9000-memory.dmp
memory/368-68-0x0000000000400000-0x000000000042C000-memory.dmp
memory/368-69-0x00000000004010B8-mapping.dmp
memory/820-72-0x0000000000400000-0x0000000000443000-memory.dmp
memory/820-73-0x0000000000401364-mapping.dmp
memory/1856-75-0x0000000004445000-0x0000000004456000-memory.dmp
memory/820-74-0x0000000000590000-0x00000000006E3000-memory.dmp
memory/820-78-0x0000000075FE1000-0x0000000075FE3000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2021-07-13 14:14
Reported
2021-07-13 14:17
Platform
win10v20210410
Max time kernel
146s
Max time network
149s
Command Line
Signatures
UAC bypass
Windows security bypass
XpertRAT
XpertRAT Core Payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Adds policy Run key to start application
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run\X550V6H4-V1N8-X8C6-D6T5-A7W0Q2D4J7R2 = "C:\\Users\\Admin\\AppData\\Roaming\\X550V6H4-V1N8-X8C6-D6T5-A7W0Q2D4J7R2\\X550V6H4-V1N8-X8C6-D6T5-A7W0Q2D4J7R2.exe" | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
Windows security modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UACDisableNotify = "0" | C:\Users\Admin\AppData\Local\Temp\d33732b691720be2cef97957e40bb69e.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3686645723-710336880-414668232-1000\Software\Microsoft\Windows\CurrentVersion\Run\X550V6H4-V1N8-X8C6-D6T5-A7W0Q2D4J7R2 = "C:\\Users\\Admin\\AppData\\Roaming\\X550V6H4-V1N8-X8C6-D6T5-A7W0Q2D4J7R2\\X550V6H4-V1N8-X8C6-D6T5-A7W0Q2D4J7R2.exe" | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
| Set value (str) | \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\X550V6H4-V1N8-X8C6-D6T5-A7W0Q2D4J7R2 = "C:\\Users\\Admin\\AppData\\Roaming\\X550V6H4-V1N8-X8C6-D6T5-A7W0Q2D4J7R2\\X550V6H4-V1N8-X8C6-D6T5-A7W0Q2D4J7R2.exe" | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
Checks whether UAC is enabled
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Users\Admin\AppData\Local\Temp\d33732b691720be2cef97957e40bb69e.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 4436 set thread context of 4076 | N/A | C:\Users\Admin\AppData\Local\Temp\d33732b691720be2cef97957e40bb69e.exe | C:\Users\Admin\AppData\Local\Temp\d33732b691720be2cef97957e40bb69e.exe |
| PID 4076 set thread context of 768 | N/A | C:\Users\Admin\AppData\Local\Temp\d33732b691720be2cef97957e40bb69e.exe | C:\Program Files (x86)\Internet Explorer\iexplore.exe |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\d33732b691720be2cef97957e40bb69e.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\d33732b691720be2cef97957e40bb69e.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\d33732b691720be2cef97957e40bb69e.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\d33732b691720be2cef97957e40bb69e.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\d33732b691720be2cef97957e40bb69e.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\d33732b691720be2cef97957e40bb69e.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\d33732b691720be2cef97957e40bb69e.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\d33732b691720be2cef97957e40bb69e.exe | N/A |
| N/A | N/A | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
Suspicious use of WriteProcessMemory
System policy modification
| Description | Indicator | Process | Target |
| Set value (int) | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" | C:\Users\Admin\AppData\Local\Temp\d33732b691720be2cef97957e40bb69e.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\d33732b691720be2cef97957e40bb69e.exe
"C:\Users\Admin\AppData\Local\Temp\d33732b691720be2cef97957e40bb69e.exe"
C:\Users\Admin\AppData\Local\Temp\d33732b691720be2cef97957e40bb69e.exe
C:\Users\Admin\AppData\Local\Temp\d33732b691720be2cef97957e40bb69e.exe
C:\Program Files (x86)\Internet Explorer\iexplore.exe
C:\Users\Admin\AppData\Local\Temp\d33732b691720be2cef97957e40bb69e.exe
Network
| Country | Destination | Domain | Proto |
| N/A | 8.8.8.8:53 | oklahama.ydns.eu | udp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
| N/A | 195.133.40.229:1307 | oklahama.ydns.eu | tcp |
Files
memory/4436-114-0x0000000000A40000-0x0000000000A41000-memory.dmp
memory/4436-116-0x00000000057A0000-0x00000000057A1000-memory.dmp
memory/4436-117-0x0000000005340000-0x0000000005341000-memory.dmp
memory/4436-118-0x0000000005330000-0x0000000005331000-memory.dmp
memory/4436-119-0x00000000052A0000-0x000000000579E000-memory.dmp
memory/4436-120-0x0000000006E10000-0x0000000006E68000-memory.dmp
memory/4436-121-0x0000000006EF0000-0x0000000006EF1000-memory.dmp
memory/4436-122-0x0000000007010000-0x0000000007011000-memory.dmp
memory/4436-127-0x0000000007950000-0x00000000079A9000-memory.dmp
memory/4076-128-0x0000000000400000-0x000000000042C000-memory.dmp
memory/4076-129-0x00000000004010B8-mapping.dmp
memory/768-132-0x0000000000400000-0x0000000000443000-memory.dmp
memory/768-133-0x0000000000401364-mapping.dmp
memory/768-136-0x00000000031C0000-0x0000000003313000-memory.dmp
memory/768-137-0x00000000031C1000-0x00000000032BD000-memory.dmp
memory/4076-140-0x0000000000400000-0x000000000042C000-memory.dmp