xpertrat | bd5c24761ed0f7e6b1741abc9812e18794dd98524a7f4d3a8998d9a71af071ad

General

Target
307b16c4e0037078f39c029ad69c1ae7.exe
Size 13KB
Sample211011-j7wdfsgfb7
SHA256 bd5c24761ed0f7e6b1741abc9812e18794dd98524a7f4d3a8998d9a71af071ad
MD5 307b16c4e0037078f39c029ad69c1ae7
SHA1 465ff7790e3cffd577e6439ffc15d693baeecffd
SHA512 dd1279e86dbd74cff90381afb64f7a37e25add72dc6c059df11fb63cba104124c1c2397778f6d240a8973cac4da24be9e930e978af6939fb8ef8c365d8e464dc
MD5 SHA1 SHA512

Score

10^/10

xpertrat evasion persistence rat trojan

Malware Config

Signatures

UAC bypass 3 TTPs
evasion trojan

Bypass User Account Control
T1088

Disabling Security Tools
T1089

Modify Registry
T1112
Windows security bypass 2 TTPs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112
XpertRAT
XpertRAT is a remote access trojan with various capabilities.
rat xpertrat

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

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\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0 = "C:\\Users\\Admin\\AppData\\Roaming\\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0.exe"	iexplore.exe

Deletes itself 1 IoCs

pid	Process
4620	notepad.exe

Windows security modification 2 TTPs 1 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UACDisableNotify = "0"	307b16c4e0037078f39c029ad69c1ae7.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	iexplore.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0 = "C:\\Users\\Admin\\AppData\\Roaming\\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0.exe"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows\CurrentVersion\Run\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0 = "C:\\Users\\Admin\\AppData\\Roaming\\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0.exe"	iexplore.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	307b16c4e0037078f39c029ad69c1ae7.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 3600 set thread context of 4372	3600	307b16c4e0037078f39c029ad69c1ae7.exe	70
PID 4372 set thread context of 4552	4372	307b16c4e0037078f39c029ad69c1ae7.exe	71

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
3600	307b16c4e0037078f39c029ad69c1ae7.exe
3600	307b16c4e0037078f39c029ad69c1ae7.exe
3600	307b16c4e0037078f39c029ad69c1ae7.exe
4372	307b16c4e0037078f39c029ad69c1ae7.exe
4372	307b16c4e0037078f39c029ad69c1ae7.exe
4372	307b16c4e0037078f39c029ad69c1ae7.exe
4372	307b16c4e0037078f39c029ad69c1ae7.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3600	307b16c4e0037078f39c029ad69c1ae7.exe
Token: SeDebugPrivilege	4552	iexplore.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4372	307b16c4e0037078f39c029ad69c1ae7.exe
4552	iexplore.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 3600 wrote to memory of 4372	3600	307b16c4e0037078f39c029ad69c1ae7.exe	70
PID 3600 wrote to memory of 4372	3600	307b16c4e0037078f39c029ad69c1ae7.exe	70
PID 3600 wrote to memory of 4372	3600	307b16c4e0037078f39c029ad69c1ae7.exe	70
PID 3600 wrote to memory of 4372	3600	307b16c4e0037078f39c029ad69c1ae7.exe	70
PID 3600 wrote to memory of 4372	3600	307b16c4e0037078f39c029ad69c1ae7.exe	70
PID 3600 wrote to memory of 4372	3600	307b16c4e0037078f39c029ad69c1ae7.exe	70
PID 3600 wrote to memory of 4372	3600	307b16c4e0037078f39c029ad69c1ae7.exe	70
PID 4372 wrote to memory of 4552	4372	307b16c4e0037078f39c029ad69c1ae7.exe	71
PID 4372 wrote to memory of 4552	4372	307b16c4e0037078f39c029ad69c1ae7.exe	71
PID 4372 wrote to memory of 4552	4372	307b16c4e0037078f39c029ad69c1ae7.exe	71
PID 4372 wrote to memory of 4552	4372	307b16c4e0037078f39c029ad69c1ae7.exe	71
PID 4372 wrote to memory of 4552	4372	307b16c4e0037078f39c029ad69c1ae7.exe	71
PID 4372 wrote to memory of 4552	4372	307b16c4e0037078f39c029ad69c1ae7.exe	71
PID 4372 wrote to memory of 4552	4372	307b16c4e0037078f39c029ad69c1ae7.exe	71
PID 4372 wrote to memory of 4552	4372	307b16c4e0037078f39c029ad69c1ae7.exe	71
PID 4552 wrote to memory of 4620	4552	iexplore.exe	72
PID 4552 wrote to memory of 4620	4552	iexplore.exe	72
PID 4552 wrote to memory of 4620	4552	iexplore.exe	72
PID 4552 wrote to memory of 4620	4552	iexplore.exe	72

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	307b16c4e0037078f39c029ad69c1ae7.exe

C:\Users\Admin\AppData\Local\Temp\307b16c4e0037078f39c029ad69c1ae7.exe
"C:\Users\Admin\AppData\Local\Temp\307b16c4e0037078f39c029ad69c1ae7.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3600
- C:\Users\Admin\AppData\Local\Temp\307b16c4e0037078f39c029ad69c1ae7.exe
  C:\Users\Admin\AppData\Local\Temp\307b16c4e0037078f39c029ad69c1ae7.exe
  2⤵
  - 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:4372
- - C:\Program Files (x86)\Internet Explorer\iexplore.exe
    C:\Users\Admin\AppData\Local\Temp\307b16c4e0037078f39c029ad69c1ae7.exe
    3⤵
    - Adds policy Run key to start application
    - Adds Run key to start application
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    - Suspicious use of WriteProcessMemory
    PID:4552
  - - C:\Windows\SysWOW64\notepad.exe
      notepad.exe
      4⤵
      Deletes itself
      PID:4620