Analysis Overview
SHA256
9443d3d69b5e62fb2c944c1bc14b4d4ad21f3e0c70826b0d800e09eb9fb82d3f
Threat Level: Known bad
The file 9443d3d69b5e62fb2c944c1bc14b4d4ad21f3e0c70826b0d800e09eb9fb82d3f was found to be: Known bad.
Malicious Activity Summary
XpertRAT Core Payload
UAC bypass
Windows security bypass
XpertRAT
Nirsoft
NirSoft MailPassView
NirSoft WebBrowserPassView
Adds policy Run key to start application
UPX packed file
Deletes itself
Windows security modification
Program crash
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 behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
System policy modification
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2021-10-01 09:44
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2021-10-01 09:44
Reported
2021-10-01 09:46
Platform
win10v20210408
Max time kernel
106s
Max time network
142s
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\9443d3d69b5e62fb2c944c1bc14b4d4ad21f3e0c70826b0d800e09eb9fb82d3f.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\9443d3d69b5e62fb2c944c1bc14b4d4ad21f3e0c70826b0d800e09eb9fb82d3f.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
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\9443d3d69b5e62fb2c944c1bc14b4d4ad21f3e0c70826b0d800e09eb9fb82d3f.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\9443d3d69b5e62fb2c944c1bc14b4d4ad21f3e0c70826b0d800e09eb9fb82d3f.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\9443d3d69b5e62fb2c944c1bc14b4d4ad21f3e0c70826b0d800e09eb9fb82d3f.exe
"C:\Users\Admin\AppData\Local\Temp\9443d3d69b5e62fb2c944c1bc14b4d4ad21f3e0c70826b0d800e09eb9fb82d3f.exe"
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Test-NetConnection -TraceRoute twitter.com
C:\Users\Admin\AppData\Local\Temp\9443d3d69b5e62fb2c944c1bc14b4d4ad21f3e0c70826b0d800e09eb9fb82d3f.exe
C:\Users\Admin\AppData\Local\Temp\9443d3d69b5e62fb2c944c1bc14b4d4ad21f3e0c70826b0d800e09eb9fb82d3f.exe
C:\Program Files (x86)\Internet Explorer\iexplore.exe
C:\Users\Admin\AppData\Local\Temp\9443d3d69b5e62fb2c944c1bc14b4d4ad21f3e0c70826b0d800e09eb9fb82d3f.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\zsdlgsajd0.txt"
C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\zsdlgsajd1.txt"
C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2552 -s 92
C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\zsdlgsajd1.txt"
C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\zsdlgsajd2.txt"
C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\zsdlgsajd3.txt"
C:\Program Files (x86)\Internet Explorer\iexplore.exe
/stext "C:\Users\Admin\AppData\Roaming\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\zsdlgsajd4.txt"
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | twitter.com | udp |
| US | 8.8.8.8:53 | twitter.com | udp |
| US | 8.8.8.8:53 | twitter.com | udp |
| US | 8.8.8.8:53 | twitter.com | udp |
| US | 8.8.8.8:53 | twitter.com | udp |
| 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 |
| FR | 91.121.250.249:4000 | kapasky-antivirus.firewall-gateway.net | tcp |
Files
memory/1096-114-0x0000000000790000-0x0000000000791000-memory.dmp
memory/1096-116-0x0000000002AB0000-0x0000000002AB1000-memory.dmp
memory/1268-117-0x0000000000000000-mapping.dmp
memory/1268-120-0x0000000004E20000-0x0000000004E21000-memory.dmp
memory/1268-121-0x0000000007AD0000-0x0000000007AD1000-memory.dmp
memory/1268-123-0x0000000007492000-0x0000000007493000-memory.dmp
memory/1268-122-0x0000000007490000-0x0000000007491000-memory.dmp
memory/1268-124-0x0000000007770000-0x0000000007771000-memory.dmp
memory/1268-125-0x0000000007910000-0x0000000007911000-memory.dmp
memory/1268-126-0x0000000007980000-0x0000000007981000-memory.dmp
memory/1268-127-0x0000000008200000-0x0000000008201000-memory.dmp
memory/1268-128-0x0000000008610000-0x0000000008611000-memory.dmp
memory/1268-129-0x0000000008A80000-0x0000000008A81000-memory.dmp
memory/1268-130-0x00000000088A0000-0x00000000088A1000-memory.dmp
memory/1268-138-0x00000000098F0000-0x0000000009923000-memory.dmp
memory/1268-145-0x00000000098B0000-0x00000000098B1000-memory.dmp
memory/1268-150-0x0000000009A20000-0x0000000009A21000-memory.dmp
memory/1268-151-0x0000000009BE0000-0x0000000009BE1000-memory.dmp
memory/1268-207-0x0000000007493000-0x0000000007494000-memory.dmp
memory/1268-206-0x000000007F570000-0x000000007F571000-memory.dmp
memory/1268-381-0x000000000B3A0000-0x000000000B3A1000-memory.dmp
memory/1268-382-0x000000000AD40000-0x000000000AD41000-memory.dmp
memory/1268-393-0x0000000009B70000-0x0000000009B71000-memory.dmp
memory/1268-469-0x0000000009BB0000-0x0000000009BB1000-memory.dmp
memory/1268-552-0x000000000B060000-0x000000000B061000-memory.dmp
memory/1268-570-0x0000000009B80000-0x0000000009B81000-memory.dmp
memory/1268-579-0x0000000007496000-0x0000000007498000-memory.dmp
memory/1096-677-0x0000000006030000-0x0000000006082000-memory.dmp
memory/1096-678-0x0000000006100000-0x0000000006130000-memory.dmp
memory/3984-679-0x0000000000400000-0x000000000042C000-memory.dmp
memory/3984-680-0x00000000004010B8-mapping.dmp
memory/1808-683-0x0000000000400000-0x0000000000443000-memory.dmp
memory/1808-684-0x0000000000401364-mapping.dmp
memory/1808-687-0x0000000002EE0000-0x0000000003033000-memory.dmp
memory/1808-688-0x0000000002EE1000-0x0000000002FDD000-memory.dmp
memory/3984-690-0x0000000000400000-0x000000000042C000-memory.dmp
memory/3368-692-0x0000000000000000-mapping.dmp
memory/3916-693-0x0000000000400000-0x0000000000426000-memory.dmp
memory/3916-694-0x0000000000423BC0-mapping.dmp
memory/2552-698-0x0000000000411654-mapping.dmp
memory/2172-699-0x0000000000400000-0x000000000041B000-memory.dmp
memory/2172-700-0x0000000000411654-mapping.dmp
memory/2384-703-0x0000000000400000-0x0000000000459000-memory.dmp
memory/2384-704-0x0000000000442F04-mapping.dmp
C:\Users\Admin\AppData\Roaming\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\zsdlgsajd2.txt
| MD5 | f94dc819ca773f1e3cb27abbc9e7fa27 |
| SHA1 | 9a7700efadc5ea09ab288544ef1e3cd876255086 |
| SHA256 | a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92 |
| SHA512 | 72a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196 |
memory/2600-708-0x0000000000400000-0x0000000000416000-memory.dmp
memory/2600-709-0x0000000000413750-mapping.dmp
memory/2692-712-0x0000000000400000-0x0000000000415000-memory.dmp
memory/2692-713-0x000000000040C2A8-mapping.dmp
C:\Users\Admin\AppData\Roaming\L3Q7J4T2-J8A6-L6O4-W4G3-U5J7D0W2W5F0\zsdlgsajd4.txt
| MD5 | f3b25701fe362ec84616a93a45ce9998 |
| SHA1 | d62636d8caec13f04e28442a0a6fa1afeb024bbb |
| SHA256 | b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209 |
| SHA512 | 98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84 |