Analysis Overview
SHA256
9bd273556358606717f3d0e7d4a2521dba396d6838d8dfccb78bfc5c98590b84
Threat Level: Known bad
The file 5028df0da2732dc8528ca9b7d7e41be5.exe was found to be: Known bad.
Malicious Activity Summary
XpertRAT
XpertRAT Core Payload
UAC bypass
Windows security bypass
NirSoft WebBrowserPassView
Nirsoft
NirSoft MailPassView
UPX packed file
Adds policy Run key to start application
Deletes itself
Windows security modification
Program crash
Adds Run key to start application
Checks whether UAC is enabled
Suspicious use of SetThreadContext
Program crash
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Suspicious use of SetWindowsHookEx
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
System policy modification
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2021-10-04 15:59
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2021-10-04 15:59
Reported
2021-10-04 16:01
Platform
win7-en-20210920
Max time kernel
146s
Max time network
130s
Command Line
Signatures
Enumerates physical storage devices
Program crash
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Users\Admin\AppData\Local\Temp\5028df0da2732dc8528ca9b7d7e41be5.exe |
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:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
Suspicious behavior: GetForegroundWindowSpam
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.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\5028df0da2732dc8528ca9b7d7e41be5.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\SysWOW64\WerFault.exe | N/A |
Suspicious use of WriteProcessMemory
Processes
C:\Users\Admin\AppData\Local\Temp\5028df0da2732dc8528ca9b7d7e41be5.exe
"C:\Users\Admin\AppData\Local\Temp\5028df0da2732dc8528ca9b7d7e41be5.exe"
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Start-Sleep -s 10
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Start-Sleep -s 10
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1324 -s 1820
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 | apps.identrust.com | udp |
| US | 192.35.177.64:80 | apps.identrust.com | tcp |
Files
memory/1324-54-0x00000000003D0000-0x00000000003D1000-memory.dmp
memory/1324-56-0x0000000075661000-0x0000000075663000-memory.dmp
memory/1604-57-0x0000000000000000-mapping.dmp
memory/1604-59-0x0000000002410000-0x0000000002411000-memory.dmp
memory/1604-60-0x0000000002411000-0x0000000002412000-memory.dmp
memory/1604-61-0x0000000002412000-0x0000000002414000-memory.dmp
memory/1376-62-0x0000000000000000-mapping.dmp
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms
| MD5 | e0cf37e8966001763342215d979501be |
| SHA1 | 9322ff60a36d809a8b0ff93fd1b3b6b15123d30c |
| SHA256 | 43e19459b78e09eab8f3a4d5f94a7afcaeadf1d8bdda726b4d36cc14b4db8bf4 |
| SHA512 | 8980faff2d6eafb88a91929a775c59bd8e51a438c4aaf669118772ef49cbfd20068b314454b994597c791e61d5e8c36dc75e5c1c21788ac99f8e6524b60a1856 |
memory/1376-65-0x0000000002480000-0x00000000030CA000-memory.dmp
memory/1376-66-0x0000000002480000-0x00000000030CA000-memory.dmp
memory/1376-67-0x0000000002480000-0x00000000030CA000-memory.dmp
memory/1324-68-0x00000000047F0000-0x00000000047F1000-memory.dmp
memory/1364-69-0x0000000000000000-mapping.dmp
memory/1364-70-0x00000000004A0000-0x00000000004A1000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2021-10-04 15:59
Reported
2021-10-04 16:01
Platform
win10v20210408
Max time kernel
85s
Max time network
143s
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 |
NirSoft MailPassView
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
NirSoft WebBrowserPassView
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Nirsoft
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
| 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 |
UPX packed file
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | 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\5028df0da2732dc8528ca9b7d7e41be5.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\5028df0da2732dc8528ca9b7d7e41be5.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 |
| N/A | N/A | C:\Windows\SysWOW64\WerFault.exe | C:\Program Files (x86)\Internet Explorer\iexplore.exe |
Suspicious use of SetThreadContext
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\5028df0da2732dc8528ca9b7d7e41be5.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Program Files (x86)\Internet Explorer\iexplore.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\5028df0da2732dc8528ca9b7d7e41be5.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\5028df0da2732dc8528ca9b7d7e41be5.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\5028df0da2732dc8528ca9b7d7e41be5.exe
"C:\Users\Admin\AppData\Local\Temp\5028df0da2732dc8528ca9b7d7e41be5.exe"
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Start-Sleep -s 10
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Start-Sleep -s 10
C:\Users\Admin\AppData\Local\Temp\5028df0da2732dc8528ca9b7d7e41be5.exe
C:\Users\Admin\AppData\Local\Temp\5028df0da2732dc8528ca9b7d7e41be5.exe
C:\Program Files (x86)\Internet Explorer\iexplore.exe
C:\Users\Admin\AppData\Local\Temp\5028df0da2732dc8528ca9b7d7e41be5.exe
C:\Windows\SysWOW64\notepad.exe
notepad.exe
C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\qefowcddn0.txt"
C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\qefowcddn1.txt"
C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\qefowcddn2.txt"
C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\qefowcddn3.txt"
C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\qefowcddn4.txt"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1036 -s 92
C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\qefowcddn4.txt"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1280 -s 92
C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\qefowcddn4.txt"
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 | 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/1832-114-0x0000000000E30000-0x0000000000E31000-memory.dmp
memory/1632-116-0x0000000000000000-mapping.dmp
memory/1632-119-0x0000000004120000-0x0000000004121000-memory.dmp
memory/1632-120-0x0000000006D90000-0x0000000006D91000-memory.dmp
memory/1632-122-0x0000000006752000-0x0000000006753000-memory.dmp
memory/1632-121-0x0000000006750000-0x0000000006751000-memory.dmp
memory/1632-123-0x0000000006A50000-0x0000000006A51000-memory.dmp
memory/1632-124-0x0000000006BF0000-0x0000000006BF1000-memory.dmp
memory/1632-125-0x00000000074C0000-0x00000000074C1000-memory.dmp
memory/1632-126-0x0000000007530000-0x0000000007531000-memory.dmp
memory/1632-127-0x0000000006D70000-0x0000000006D71000-memory.dmp
memory/1632-128-0x0000000007C00000-0x0000000007C01000-memory.dmp
memory/1632-129-0x0000000007CD0000-0x0000000007CD1000-memory.dmp
memory/1632-134-0x0000000009380000-0x0000000009381000-memory.dmp
memory/1632-135-0x0000000008940000-0x0000000008941000-memory.dmp
memory/1264-137-0x0000000000000000-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 | 2e398f58bc6e1d9a56d56725948d8ae3 |
| SHA1 | 52440dfe0628c2f558ccb5f6f2cf354b5ad447d5 |
| SHA256 | 3c4152d14a92f3642d86586382fdc77e506df8e2dab21a8b2e8ad463ae6c40e0 |
| SHA512 | 64ac4e09ee1ee80ee4786209f746c5b7a006f0dc4390d4bad37d1e799deaeb986e0df925c07f8eb64a5996e70c532ac6098d3d75d712a8d0eee69e757f84419e |
memory/1632-150-0x0000000006753000-0x0000000006754000-memory.dmp
memory/1264-151-0x0000000006F00000-0x0000000006F01000-memory.dmp
memory/1264-152-0x0000000006F02000-0x0000000006F03000-memory.dmp
memory/1264-161-0x0000000006F03000-0x0000000006F04000-memory.dmp
memory/1832-162-0x00000000030D0000-0x00000000030D1000-memory.dmp
memory/1832-163-0x0000000006610000-0x000000000674E000-memory.dmp
memory/1832-164-0x0000000006AD0000-0x0000000006B00000-memory.dmp
memory/2944-165-0x0000000000400000-0x000000000042C000-memory.dmp
memory/2944-166-0x00000000004010B8-mapping.dmp
memory/3732-169-0x0000000000400000-0x0000000000443000-memory.dmp
memory/3732-170-0x0000000000401364-mapping.dmp
memory/3732-173-0x0000000003340000-0x0000000003493000-memory.dmp
memory/3732-174-0x0000000003341000-0x000000000343D000-memory.dmp
memory/2944-176-0x0000000000400000-0x000000000042C000-memory.dmp
memory/2836-178-0x0000000000000000-mapping.dmp
memory/3988-180-0x0000000000423BC0-mapping.dmp
memory/3988-179-0x0000000000400000-0x0000000000426000-memory.dmp
memory/3836-183-0x0000000000400000-0x000000000041B000-memory.dmp
memory/3836-184-0x0000000000411654-mapping.dmp
memory/2208-188-0x0000000000442F04-mapping.dmp
memory/2208-187-0x0000000000400000-0x0000000000459000-memory.dmp
C:\Users\Admin\AppData\Roaming\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\qefowcddn2.txt
| MD5 | f94dc819ca773f1e3cb27abbc9e7fa27 |
| SHA1 | 9a7700efadc5ea09ab288544ef1e3cd876255086 |
| SHA256 | a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92 |
| SHA512 | 72a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196 |
memory/920-192-0x0000000000400000-0x0000000000416000-memory.dmp
memory/920-193-0x0000000000413750-mapping.dmp
memory/1036-197-0x000000000040C2A8-mapping.dmp
memory/1280-199-0x000000000040C2A8-mapping.dmp
memory/824-201-0x000000000040C2A8-mapping.dmp
memory/824-200-0x0000000000400000-0x0000000000415000-memory.dmp
C:\Users\Admin\AppData\Roaming\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\qefowcddn4.txt
| MD5 | f3b25701fe362ec84616a93a45ce9998 |
| SHA1 | d62636d8caec13f04e28442a0a6fa1afeb024bbb |
| SHA256 | b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209 |
| SHA512 | 98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84 |