Analysis Overview
SHA256
bc2a5e452669de43c4f4533c995b515bace2941ea5b45bb537085b204ee5d54b
Threat Level: Known bad
The file 49af0abba03a7d559171f378728e9bc7.exe was found to be: Known bad.
Malicious Activity Summary
UAC bypass
XpertRAT
XpertRAT Core Payload
Windows security bypass
Adds policy Run key to start application
Deletes itself
Windows security modification
Checks whether UAC is enabled
Adds Run key to start application
Program crash
Suspicious use of SetThreadContext
Enumerates physical storage devices
System policy modification
Suspicious use of SetWindowsHookEx
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2021-09-22 07:07
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2021-09-22 07:07
Reported
2021-09-22 07:10
Platform
win7-en-20210920
Max time kernel
147s
Max time network
150s
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\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 |
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\49af0abba03a7d559171f378728e9bc7.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Key created | \REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run | C:\Program Files (x86)\Internet Explorer\iexplore.exe | N/A |
| Set value (str) | \REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\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 |
| 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 |
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\49af0abba03a7d559171f378728e9bc7.exe | N/A |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 1232 set thread context of 1500 | N/A | C:\Users\Admin\AppData\Local\Temp\49af0abba03a7d559171f378728e9bc7.exe | C:\Users\Admin\AppData\Local\Temp\49af0abba03a7d559171f378728e9bc7.exe |
| PID 1500 set thread context of 680 | N/A | C:\Users\Admin\AppData\Local\Temp\49af0abba03a7d559171f378728e9bc7.exe | C:\Program Files (x86)\Internet Explorer\iexplore.exe |
| PID 1500 set thread context of 976 | N/A | C:\Users\Admin\AppData\Local\Temp\49af0abba03a7d559171f378728e9bc7.exe | C:\Program Files (x86)\Internet Explorer\iexplore.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\49af0abba03a7d559171f378728e9bc7.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\49af0abba03a7d559171f378728e9bc7.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\49af0abba03a7d559171f378728e9bc7.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\49af0abba03a7d559171f378728e9bc7.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\49af0abba03a7d559171f378728e9bc7.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\49af0abba03a7d559171f378728e9bc7.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\49af0abba03a7d559171f378728e9bc7.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\49af0abba03a7d559171f378728e9bc7.exe
"C:\Users\Admin\AppData\Local\Temp\49af0abba03a7d559171f378728e9bc7.exe"
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Start-Sleep -Seconds 3
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Start-Sleep -s 15
C:\Users\Admin\AppData\Local\Temp\49af0abba03a7d559171f378728e9bc7.exe
C:\Users\Admin\AppData\Local\Temp\49af0abba03a7d559171f378728e9bc7.exe
C:\Program Files (x86)\Internet Explorer\iexplore.exe
C:\Users\Admin\AppData\Local\Temp\49af0abba03a7d559171f378728e9bc7.exe
C:\Program Files (x86)\Internet Explorer\iexplore.exe
C:\Users\Admin\AppData\Local\Temp\49af0abba03a7d559171f378728e9bc7.exe
C:\Windows\SysWOW64\notepad.exe
notepad.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | store2.gofile.io | udp |
| FR | 31.14.69.10:443 | store2.gofile.io | tcp |
| US | 8.8.8.8:53 | kapasky-antivirus.firewall-gateway.net | udp |
| FR | 146.59.132.186:4000 | kapasky-antivirus.firewall-gateway.net | tcp |
| FR | 146.59.132.186:4000 | kapasky-antivirus.firewall-gateway.net | tcp |
| FR | 146.59.132.186:4000 | kapasky-antivirus.firewall-gateway.net | tcp |
| US | 8.8.8.8:53 | kapasky-antivirus.firewall-gateway.net | udp |
| FR | 146.59.132.186:4000 | kapasky-antivirus.firewall-gateway.net | tcp |
| FR | 146.59.132.186:4000 | kapasky-antivirus.firewall-gateway.net | tcp |
| FR | 146.59.132.186:4000 | kapasky-antivirus.firewall-gateway.net | tcp |
Files
memory/1232-54-0x00000000013C0000-0x00000000013C1000-memory.dmp
memory/1232-56-0x00000000005D0000-0x00000000005D1000-memory.dmp
memory/1524-57-0x0000000000000000-mapping.dmp
memory/1524-58-0x0000000074F81000-0x0000000074F83000-memory.dmp
memory/1524-59-0x0000000002500000-0x000000000314A000-memory.dmp
memory/1524-61-0x0000000002500000-0x000000000314A000-memory.dmp
memory/1524-60-0x0000000002500000-0x000000000314A000-memory.dmp
memory/1396-62-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
| MD5 | bbf05ec41efa8caf3e915e887a9fa53e |
| SHA1 | 32fc5249458bf5ca1fb8f2d109fedd2d003279af |
| SHA256 | 68077b939eee6972f05b2947963d662fda5cc10e28bde6d26bb2a4989f6aeee1 |
| SHA512 | 421162865959e2ee6c55c892c1bf29b054ddfec36cfa55d9e6761f70601c06435068b3cc54274ceab692cc1d9e4f7925979655247bf670eabe415c7ff59c3fdd |
memory/1396-65-0x0000000002300000-0x0000000002F4A000-memory.dmp
memory/1232-66-0x0000000005C70000-0x0000000005CBF000-memory.dmp
memory/1232-67-0x0000000000BD0000-0x0000000000C00000-memory.dmp
memory/1500-68-0x0000000000400000-0x000000000042C000-memory.dmp
memory/1500-69-0x00000000004010B8-mapping.dmp
memory/680-72-0x0000000000400000-0x0000000000443000-memory.dmp
memory/680-73-0x0000000000401364-mapping.dmp
memory/976-75-0x0000000000401364-mapping.dmp
memory/976-76-0x00000000004C0000-0x0000000000613000-memory.dmp
memory/828-79-0x0000000000000000-mapping.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2021-09-22 07:07
Reported
2021-09-22 07:10
Platform
win10v20210408
Max time kernel
151s
Max time network
153s
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\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 |
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\49af0abba03a7d559171f378728e9bc7.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| 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 |
| 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 |
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\49af0abba03a7d559171f378728e9bc7.exe | N/A |
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Program Files (x86)\Internet Explorer\iexplore.exe |
Suspicious use of SetThreadContext
| Description | Indicator | Process | Target |
| PID 656 set thread context of 3144 | N/A | C:\Users\Admin\AppData\Local\Temp\49af0abba03a7d559171f378728e9bc7.exe | C:\Users\Admin\AppData\Local\Temp\49af0abba03a7d559171f378728e9bc7.exe |
| PID 3144 set thread context of 3868 | N/A | C:\Users\Admin\AppData\Local\Temp\49af0abba03a7d559171f378728e9bc7.exe | C:\Program Files (x86)\Internet Explorer\iexplore.exe |
| PID 3144 set thread context of 1764 | N/A | C:\Users\Admin\AppData\Local\Temp\49af0abba03a7d559171f378728e9bc7.exe | C:\Program Files (x86)\Internet Explorer\iexplore.exe |
Enumerates physical storage devices
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\49af0abba03a7d559171f378728e9bc7.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\49af0abba03a7d559171f378728e9bc7.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\49af0abba03a7d559171f378728e9bc7.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\49af0abba03a7d559171f378728e9bc7.exe
"C:\Users\Admin\AppData\Local\Temp\49af0abba03a7d559171f378728e9bc7.exe"
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Start-Sleep -Seconds 3
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Start-Sleep -s 15
C:\Users\Admin\AppData\Local\Temp\49af0abba03a7d559171f378728e9bc7.exe
C:\Users\Admin\AppData\Local\Temp\49af0abba03a7d559171f378728e9bc7.exe
C:\Program Files (x86)\Internet Explorer\iexplore.exe
C:\Users\Admin\AppData\Local\Temp\49af0abba03a7d559171f378728e9bc7.exe
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3868 -s 100
C:\Program Files (x86)\Internet Explorer\iexplore.exe
C:\Users\Admin\AppData\Local\Temp\49af0abba03a7d559171f378728e9bc7.exe
C:\Windows\SysWOW64\notepad.exe
notepad.exe
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | store2.gofile.io | udp |
| FR | 31.14.69.10:443 | store2.gofile.io | tcp |
| US | 8.8.8.8:53 | kapasky-antivirus.firewall-gateway.net | udp |
| FR | 146.59.132.186:4000 | kapasky-antivirus.firewall-gateway.net | tcp |
| FR | 146.59.132.186:4000 | kapasky-antivirus.firewall-gateway.net | tcp |
| FR | 146.59.132.186:4000 | kapasky-antivirus.firewall-gateway.net | tcp |
| US | 8.8.8.8:53 | kapasky-antivirus.firewall-gateway.net | udp |
| FR | 146.59.132.186:4000 | kapasky-antivirus.firewall-gateway.net | tcp |
| FR | 146.59.132.186:4000 | kapasky-antivirus.firewall-gateway.net | tcp |
| FR | 146.59.132.186:4000 | kapasky-antivirus.firewall-gateway.net | tcp |
Files
memory/656-114-0x00000000008C0000-0x00000000008C1000-memory.dmp
memory/656-116-0x0000000005750000-0x0000000005751000-memory.dmp
memory/656-117-0x0000000005250000-0x0000000005251000-memory.dmp
memory/656-118-0x0000000005230000-0x0000000005231000-memory.dmp
memory/656-119-0x00000000052F0000-0x00000000052F1000-memory.dmp
memory/1056-120-0x0000000000000000-mapping.dmp
memory/1056-123-0x0000000004880000-0x0000000004881000-memory.dmp
memory/1056-124-0x00000000072F0000-0x00000000072F1000-memory.dmp
memory/1056-125-0x0000000004960000-0x0000000004961000-memory.dmp
memory/1056-126-0x0000000004962000-0x0000000004963000-memory.dmp
memory/1056-127-0x0000000007920000-0x0000000007921000-memory.dmp
memory/1056-128-0x0000000007AA0000-0x0000000007AA1000-memory.dmp
memory/1056-129-0x00000000079C0000-0x00000000079C1000-memory.dmp
memory/1056-130-0x0000000007BF0000-0x0000000007BF1000-memory.dmp
memory/1056-131-0x0000000006F20000-0x0000000006F21000-memory.dmp
memory/1056-132-0x0000000008340000-0x0000000008341000-memory.dmp
memory/1056-133-0x0000000008410000-0x0000000008411000-memory.dmp
memory/1056-138-0x00000000098F0000-0x00000000098F1000-memory.dmp
memory/1056-139-0x0000000009080000-0x0000000009081000-memory.dmp
memory/2360-141-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
| MD5 | 66382a4ca6c4dcf75ce41417d44be93e |
| SHA1 | 8132cbef1c12f8a89a68a6153ade4286bf130812 |
| SHA256 | a70acce0f4c6ab59b88ce79d84c38d4abffe19b72b033250499b17d788a2db56 |
| SHA512 | 2bf66f2850f4a65220085c55a5b3c8866453104d78fe516e5bd6e3e47df783062ce4ea10de580f2eb0274ac8c3ce71965201c49ef55a78f307731ccc8600aadc |
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
| MD5 | d6618ccec6ef1c78233d4f41a2b9805d |
| SHA1 | 7aa1f883a954595872973a341f1f5012da557c08 |
| SHA256 | edb8c39176df911fa5bb3b41073647ad86beed644eae778dbc65e70e35196fe9 |
| SHA512 | 5fee1668d1712ee8baf29e8fe004cd623403553366c43b9efe27b49424f59f9aafeeb95954e2af4c2fe4719d7541e1e6e2ffea0d893bfac881ed50749ca4b660 |
memory/1056-154-0x0000000004963000-0x0000000004964000-memory.dmp
memory/2360-155-0x0000000004F10000-0x0000000004F11000-memory.dmp
memory/2360-156-0x0000000004F12000-0x0000000004F13000-memory.dmp
memory/2360-165-0x0000000004F13000-0x0000000004F14000-memory.dmp
memory/656-166-0x0000000008460000-0x00000000084AF000-memory.dmp
memory/656-167-0x0000000007670000-0x00000000076A0000-memory.dmp
memory/3144-168-0x0000000000400000-0x000000000042C000-memory.dmp
memory/3144-169-0x00000000004010B8-mapping.dmp
memory/3868-173-0x0000000000401364-mapping.dmp
memory/3144-174-0x0000000000400000-0x000000000042C000-memory.dmp
memory/1764-175-0x0000000000400000-0x0000000000443000-memory.dmp
memory/1764-176-0x0000000000401364-mapping.dmp
memory/1764-179-0x00000000031E0000-0x0000000003333000-memory.dmp
memory/1764-180-0x00000000031E1000-0x00000000032DD000-memory.dmp
memory/1300-183-0x0000000000000000-mapping.dmp