Analysis Overview
SHA256
c830683f700f311fe3d533d849cf045b1cbed5ff76debaa6c3dd8f71c0daa535
Threat Level: Known bad
The file c830683f700f311fe3d533d849cf045b1cbed5ff76debaa6c3dd8f71c0daa535 was found to be: Known bad.
Malicious Activity Summary
Windows security bypass
XpertRAT
UAC bypass
XpertRAT Core Payload
Adds policy Run key to start application
Deletes itself
Windows security modification
Adds Run key to start application
Checks whether UAC is enabled
Suspicious use of SetThreadContext
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Suspicious use of SetWindowsHookEx
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
System policy modification
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2021-09-30 18:13
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2021-09-30 18:13
Reported
2021-09-30 18:16
Platform
win10v20210408
Max time kernel
150s
Max time network
155s
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 |
| 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" | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
| Key created | \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\run | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
Deletes itself
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\notepad.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\c830683f700f311fe3d533d849cf045b1cbed5ff76debaa6c3dd8f71c0daa535.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| 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" | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
| Key created | \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-1594587808-2047097707-2163810515-1000\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" | 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 |
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\c830683f700f311fe3d533d849cf045b1cbed5ff76debaa6c3dd8f71c0daa535.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 3728 set thread context of 1360 | N/A | C:\Users\Admin\AppData\Local\Temp\c830683f700f311fe3d533d849cf045b1cbed5ff76debaa6c3dd8f71c0daa535.exe | C:\Users\Admin\AppData\Local\Temp\c830683f700f311fe3d533d849cf045b1cbed5ff76debaa6c3dd8f71c0daa535.exe |
| PID 1360 set thread context of 1720 | N/A | C:\Users\Admin\AppData\Local\Temp\c830683f700f311fe3d533d849cf045b1cbed5ff76debaa6c3dd8f71c0daa535.exe | C:\Program Files (x86)\Internet Explorer\iexplore.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\c830683f700f311fe3d533d849cf045b1cbed5ff76debaa6c3dd8f71c0daa535.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\c830683f700f311fe3d533d849cf045b1cbed5ff76debaa6c3dd8f71c0daa535.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\c830683f700f311fe3d533d849cf045b1cbed5ff76debaa6c3dd8f71c0daa535.exe
"C:\Users\Admin\AppData\Local\Temp\c830683f700f311fe3d533d849cf045b1cbed5ff76debaa6c3dd8f71c0daa535.exe"
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Test-NetConnection -TraceRoute twitch.com
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Start-Sleep -s 5
C:\Users\Admin\AppData\Local\Temp\c830683f700f311fe3d533d849cf045b1cbed5ff76debaa6c3dd8f71c0daa535.exe
C:\Users\Admin\AppData\Local\Temp\c830683f700f311fe3d533d849cf045b1cbed5ff76debaa6c3dd8f71c0daa535.exe
C:\Program Files (x86)\Internet Explorer\iexplore.exe
C:\Users\Admin\AppData\Local\Temp\c830683f700f311fe3d533d849cf045b1cbed5ff76debaa6c3dd8f71c0daa535.exe
C:\Windows\SysWOW64\notepad.exe
notepad.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | twitch.com | udp |
| US | 8.8.8.8:53 | twitch.com | udp |
| US | 8.8.8.8:53 | twitch.com | udp |
| US | 8.8.8.8:53 | twitch.com | udp |
| US | 8.8.8.8:53 | twitch.com | udp |
| US | 8.8.8.8:53 | kapasky-antivirus.firewall-gateway.net | udp |
| FR | 91.121.250.249:4000 | kapasky-antivirus.firewall-gateway.net | tcp |
| FR | 91.121.250.249:4000 | kapasky-antivirus.firewall-gateway.net | tcp |
| FR | 91.121.250.249:4000 | kapasky-antivirus.firewall-gateway.net | tcp |
| FR | 91.121.250.249:4000 | kapasky-antivirus.firewall-gateway.net | tcp |
| FR | 91.121.250.249:4000 | kapasky-antivirus.firewall-gateway.net | tcp |
| FR | 91.121.250.249:4000 | kapasky-antivirus.firewall-gateway.net | tcp |
| FR | 91.121.250.249:4000 | kapasky-antivirus.firewall-gateway.net | tcp |
| FR | 91.121.250.249:4000 | kapasky-antivirus.firewall-gateway.net | tcp |
| FR | 91.121.250.249:4000 | kapasky-antivirus.firewall-gateway.net | tcp |
| FR | 91.121.250.249:4000 | kapasky-antivirus.firewall-gateway.net | tcp |
| FR | 91.121.250.249:4000 | kapasky-antivirus.firewall-gateway.net | tcp |
| FR | 91.121.250.249:4000 | kapasky-antivirus.firewall-gateway.net | tcp |
Files
memory/3728-114-0x0000000000430000-0x0000000000431000-memory.dmp
memory/3104-116-0x0000000000000000-mapping.dmp
memory/3104-119-0x0000000006D20000-0x0000000006D21000-memory.dmp
memory/3104-120-0x0000000007480000-0x0000000007481000-memory.dmp
memory/3104-122-0x0000000006E40000-0x0000000006E41000-memory.dmp
memory/3728-121-0x0000000004E80000-0x0000000004E81000-memory.dmp
memory/3104-123-0x0000000006E42000-0x0000000006E43000-memory.dmp
memory/3104-124-0x0000000007440000-0x0000000007441000-memory.dmp
memory/3104-125-0x0000000007E00000-0x0000000007E01000-memory.dmp
memory/3104-126-0x0000000007E70000-0x0000000007E71000-memory.dmp
memory/3104-127-0x0000000007F60000-0x0000000007F61000-memory.dmp
memory/3104-128-0x0000000007EE0000-0x0000000007EE1000-memory.dmp
memory/3104-129-0x00000000083B0000-0x00000000083B1000-memory.dmp
memory/3104-130-0x00000000085A0000-0x00000000085A1000-memory.dmp
memory/3104-138-0x00000000095B0000-0x00000000095E3000-memory.dmp
memory/3104-139-0x000000007F220000-0x000000007F221000-memory.dmp
memory/3104-146-0x0000000009570000-0x0000000009571000-memory.dmp
memory/3104-151-0x00000000096E0000-0x00000000096E1000-memory.dmp
memory/3104-152-0x0000000006E43000-0x0000000006E44000-memory.dmp
memory/3104-153-0x0000000009900000-0x0000000009901000-memory.dmp
memory/3104-381-0x000000000B200000-0x000000000B201000-memory.dmp
memory/3104-382-0x000000000AB80000-0x000000000AB81000-memory.dmp
memory/3104-393-0x0000000002D30000-0x0000000002D31000-memory.dmp
memory/3104-469-0x0000000002DC0000-0x0000000002DC1000-memory.dmp
memory/3104-552-0x0000000002DF0000-0x0000000002DF1000-memory.dmp
memory/3104-570-0x0000000006E46000-0x0000000006E48000-memory.dmp
memory/3104-571-0x0000000002D90000-0x0000000002D91000-memory.dmp
memory/1628-677-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
| MD5 | 1712dab0a1bf4e9e3ff666b9c431550d |
| SHA1 | 34d1dec8fa95f62c72cb3f92a22c13ad9eece10f |
| SHA256 | 7184a35390c8d6549ef4ddf2909c8fc3446572229bb1788fe178332d80ebfa97 |
| SHA512 | 6ae29c37c11c851ed337afee3c3ad654593063e76df88a6974933e449ac8d86bfa005b9bf2e0ee29aad4647b8f8f32ac753587077fd745424be7f9765688e7b7 |
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
| MD5 | 9d84bdc9aebbc477f64263748d591608 |
| SHA1 | eb65b304ce5ceaea4876d828b082017d6d28d9cb |
| SHA256 | 459e930dfd5cbc1b9e57f20d2ff1dfdf2d31bc25d9998c0ac550eabaf7ea40e8 |
| SHA512 | e84cc9c73143897b18cae93eb918a7df6c2f133d972e5d302d1b4f65700e8568d0416abfb19c58b19932f40eba141b4e4fc1aa46d7a2c95b9283314a35c8913d |
memory/1628-690-0x0000000004430000-0x0000000004431000-memory.dmp
memory/1628-691-0x0000000004432000-0x0000000004433000-memory.dmp
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\ModuleAnalysisCache
| MD5 | 1c33ff599b382b705675229c91fc2f99 |
| SHA1 | c20086746c14c5d57be9a3df47bd75fa77abe7e0 |
| SHA256 | d46b6790776328125154bb8231deafcc7786911bea48fbcd2742c05fa1c4da0a |
| SHA512 | 5b975f6b0d5407d8d43975c0fd0c26ecb155f6ee9b7416e39478f84e97deea590d1eb0cf2a972adcf96eba6745fdef472f6fcf51d85cd53c2da9b4c550ee413c |
memory/3728-701-0x0000000000C60000-0x0000000000CAF000-memory.dmp
memory/1628-702-0x0000000004433000-0x0000000004434000-memory.dmp
memory/3728-703-0x0000000004C30000-0x0000000004C60000-memory.dmp
memory/1360-705-0x00000000004010B8-mapping.dmp
memory/1360-704-0x0000000000400000-0x000000000042C000-memory.dmp
memory/1720-708-0x0000000000400000-0x0000000000443000-memory.dmp
memory/1720-709-0x0000000000401364-mapping.dmp
memory/1720-712-0x0000000003100000-0x0000000003253000-memory.dmp
memory/1720-713-0x0000000003101000-0x00000000031FD000-memory.dmp
memory/1360-715-0x0000000000400000-0x000000000042C000-memory.dmp
memory/1524-717-0x0000000000000000-mapping.dmp