Analysis Overview
SHA256
68c2a97252cfef191ad5dd8fd7facd69019f2592eadc8b86cfbae04daf92c56e
Threat Level: Known bad
The file usertp.exe was found to be: Known bad.
Malicious Activity Summary
Asyncrat family
StormKitty
Async RAT payload
StormKitty payload
AsyncRat
Async RAT payload
Reads user/profile data of web browsers
Checks installed software on the system
Unsigned PE
Suspicious use of SetWindowsHookEx
Uses Task Scheduler COM API
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: AddClipboardFormatListener
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2023-09-26 08:43
Signatures
Async RAT payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Asyncrat family
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral2
Detonation Overview
Submitted
2023-09-26 08:43
Reported
2023-09-26 08:45
Platform
win10v2004-20230915-en
Max time kernel
142s
Max time network
155s
Command Line
Signatures
AsyncRat
StormKitty
StormKitty payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Async RAT payload
| 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 |
Reads user/profile data of web browsers
Checks installed software on the system
Suspicious behavior: AddClipboardFormatListener
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\usertp.exe | N/A |
Suspicious behavior: EnumeratesProcesses
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\usertp.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\usertp.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\usertp.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\usertp.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\usertp.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\usertp.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\usertp.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\usertp.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\usertp.exe | N/A |
| Token: SeManageVolumePrivilege | N/A | C:\Windows\System32\svchost.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\usertp.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\usertp.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\usertp.exe | N/A |
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\usertp.exe
"C:\Users\Admin\AppData\Local\Temp\usertp.exe"
C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe
C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k UnistackSvcGroup
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 208.194.73.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 64.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 8.3.197.209.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| VN | 103.38.236.46:4449 | tcp | |
| US | 8.8.8.8:53 | 9.228.82.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 55.36.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 46.236.38.103.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 41.110.16.96.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| VN | 103.38.236.46:4449 | tcp | |
| VN | 103.38.236.46:4449 | tcp | |
| VN | 103.38.236.46:4449 | tcp | |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| VN | 103.38.236.46:4449 | tcp | |
| US | 8.8.8.8:53 | 135.1.85.104.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 119.110.54.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 146.78.124.51.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.81.21.72.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 209.143.182.52.in-addr.arpa | udp |
Files
memory/968-0-0x00000000002A0000-0x00000000002B8000-memory.dmp
memory/968-2-0x00007FFAAF110000-0x00007FFAAFBD1000-memory.dmp
memory/968-3-0x000000001B030000-0x000000001B040000-memory.dmp
memory/968-4-0x00007FFACC7F0000-0x00007FFACC9E5000-memory.dmp
memory/968-8-0x000000001B030000-0x000000001B040000-memory.dmp
memory/968-9-0x000000001B030000-0x000000001B040000-memory.dmp
memory/968-10-0x00007FFAAF110000-0x00007FFAAFBD1000-memory.dmp
memory/968-11-0x000000001C3B0000-0x000000001C426000-memory.dmp
memory/968-12-0x0000000002510000-0x000000000251E000-memory.dmp
memory/968-13-0x000000001B010000-0x000000001B02E000-memory.dmp
memory/968-15-0x0000000002520000-0x000000000252E000-memory.dmp
memory/968-14-0x000000001B530000-0x000000001B596000-memory.dmp
memory/968-16-0x000000001AE90000-0x000000001AE9A000-memory.dmp
memory/968-17-0x000000001B030000-0x000000001B040000-memory.dmp
memory/968-19-0x000000001C630000-0x000000001C752000-memory.dmp
memory/968-36-0x00007FFACC7F0000-0x00007FFACC9E5000-memory.dmp
memory/968-59-0x000000001C790000-0x000000001C7B2000-memory.dmp
memory/968-60-0x000000001B030000-0x000000001B040000-memory.dmp
memory/968-61-0x000000001B030000-0x000000001B040000-memory.dmp
memory/3952-62-0x000001B0FC740000-0x000001B0FC750000-memory.dmp
memory/3952-78-0x000001B0FC840000-0x000001B0FC850000-memory.dmp
memory/3952-94-0x000001B0FCB70000-0x000001B0FCB71000-memory.dmp
memory/3952-96-0x000001B0FCBA0000-0x000001B0FCBA1000-memory.dmp
memory/3952-97-0x000001B0FCBA0000-0x000001B0FCBA1000-memory.dmp
memory/3952-98-0x000001B0FCCB0000-0x000001B0FCCB1000-memory.dmp
Analysis: behavioral1
Detonation Overview
Submitted
2023-09-26 08:43
Reported
2023-09-26 08:45
Platform
win7-20230831-en
Max time kernel
150s
Max time network
149s
Command Line
Signatures
AsyncRat
Async RAT payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Checks installed software on the system
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\usertp.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Local\Temp\usertp.exe | N/A |
Processes
C:\Users\Admin\AppData\Local\Temp\usertp.exe
"C:\Users\Admin\AppData\Local\Temp\usertp.exe"
Network
| Country | Destination | Domain | Proto |
| VN | 103.38.236.46:4449 | tcp | |
| VN | 103.38.236.46:4449 | tcp | |
| VN | 103.38.236.46:4449 | tcp | |
| VN | 103.38.236.46:4449 | tcp | |
| VN | 103.38.236.46:4449 | tcp | |
| VN | 103.38.236.46:4449 | tcp | |
| VN | 103.38.236.46:4449 | tcp | |
| VN | 103.38.236.46:4449 | tcp | |
| VN | 103.38.236.46:4449 | tcp | |
| VN | 103.38.236.46:4449 | tcp | |
| VN | 103.38.236.46:4449 | tcp | |
| VN | 103.38.236.46:4449 | tcp | |
| VN | 103.38.236.46:4449 | tcp | |
| VN | 103.38.236.46:4449 | tcp | |
| VN | 103.38.236.46:4449 | tcp | |
| VN | 103.38.236.46:4449 | tcp | |
| VN | 103.38.236.46:4449 | tcp | |
| VN | 103.38.236.46:4449 | tcp | |
| VN | 103.38.236.46:4449 | tcp | |
| VN | 103.38.236.46:4449 | tcp | |
| VN | 103.38.236.46:4449 | tcp | |
| VN | 103.38.236.46:4449 | tcp | |
| VN | 103.38.236.46:4449 | tcp | |
| VN | 103.38.236.46:4449 | tcp | |
| VN | 103.38.236.46:4449 | tcp | |
| VN | 103.38.236.46:4449 | tcp | |
| VN | 103.38.236.46:4449 | tcp | |
| VN | 103.38.236.46:4449 | tcp | |
| VN | 103.38.236.46:4449 | tcp |
Files
memory/2192-0-0x0000000000EA0000-0x0000000000EB8000-memory.dmp
memory/2192-1-0x000007FEF5A90000-0x000007FEF647C000-memory.dmp
memory/2192-3-0x000000001AEB0000-0x000000001AF30000-memory.dmp
memory/2192-4-0x00000000776D0000-0x0000000077879000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\Cab5312.tmp
| MD5 | f3441b8572aae8801c04f3060b550443 |
| SHA1 | 4ef0a35436125d6821831ef36c28ffaf196cda15 |
| SHA256 | 6720349e7d82ee0a8e73920d3c2b7cb2912d9fcf2edb6fd98f2f12820158b0bf |
| SHA512 | 5ba01ba421b50030e380ae6bbcd2f681f2a91947fe7fedb3c8e6b5f24dce9517abf57b1cf26cc6078d4bb53bde6fcfb2561591337c841f8f2cb121a3d71661b9 |
memory/2192-21-0x000007FEF5A90000-0x000007FEF647C000-memory.dmp
memory/2192-22-0x000000001AEB0000-0x000000001AF30000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\Tar69FE.tmp
| MD5 | 9441737383d21192400eca82fda910ec |
| SHA1 | 725e0d606a4fc9ba44aa8ffde65bed15e65367e4 |
| SHA256 | bc3a6e84e41faeb57e7c21aa3b60c2a64777107009727c5b7c0ed8fe658909e5 |
| SHA512 | 7608dd653a66cd364392a78d4711b48d1707768d36996e4d38871c6843b5714e1d7da4b4cc6db969e6000cfa182bcb74216ef6823d1063f036fc5c3413fb8dcf |
memory/2192-41-0x00000000776D0000-0x0000000077879000-memory.dmp