Analysis Overview
SHA256
844f43264b78b25a6526ab5f9997cca8243f67d51400f2abd4fd3c777b5fb983
Threat Level: Known bad
The file 844f43264b78b25a6526ab5f9997cca8243f67d51400f2abd4fd3c777b5fb983 was found to be: Known bad.
Malicious Activity Summary
Quasar RAT
Quasar family
Quasar payload
Executes dropped EXE
Drops file in System32 directory
Unsigned PE
Scheduled Task/Job: Scheduled Task
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-18 22:12
Signatures
Quasar family
Quasar payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-08-18 22:12
Reported
2024-08-18 22:15
Platform
win7-20240704-en
Max time kernel
148s
Max time network
149s
Command Line
Signatures
Quasar RAT
Quasar 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 |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\Windows\Windows Host Process.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File created | C:\Windows\system32\Windows\Windows Host Process.exe | C:\Users\Admin\AppData\Local\Temp\844f43264b78b25a6526ab5f9997cca8243f67d51400f2abd4fd3c777b5fb983.exe | N/A |
| File opened for modification | C:\Windows\system32\Windows\Windows Host Process.exe | C:\Users\Admin\AppData\Local\Temp\844f43264b78b25a6526ab5f9997cca8243f67d51400f2abd4fd3c777b5fb983.exe | N/A |
| File opened for modification | C:\Windows\system32\Windows | C:\Users\Admin\AppData\Local\Temp\844f43264b78b25a6526ab5f9997cca8243f67d51400f2abd4fd3c777b5fb983.exe | N/A |
| File opened for modification | C:\Windows\system32\Windows\Windows Host Process.exe | C:\Windows\system32\Windows\Windows Host Process.exe | N/A |
| File opened for modification | C:\Windows\system32\Windows | C:\Windows\system32\Windows\Windows Host Process.exe | N/A |
Scheduled Task/Job: Scheduled Task
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\system32\schtasks.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\844f43264b78b25a6526ab5f9997cca8243f67d51400f2abd4fd3c777b5fb983.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\system32\Windows\Windows Host Process.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\Windows\Windows Host Process.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\844f43264b78b25a6526ab5f9997cca8243f67d51400f2abd4fd3c777b5fb983.exe
"C:\Users\Admin\AppData\Local\Temp\844f43264b78b25a6526ab5f9997cca8243f67d51400f2abd4fd3c777b5fb983.exe"
C:\Windows\system32\schtasks.exe
"schtasks" /create /tn "Windows Host Process" /sc ONLOGON /tr "C:\Windows\system32\Windows\Windows Host Process.exe" /rl HIGHEST /f
C:\Windows\system32\Windows\Windows Host Process.exe
"C:\Windows\system32\Windows\Windows Host Process.exe"
C:\Windows\system32\schtasks.exe
"schtasks" /create /tn "Windows Host Process" /sc ONLOGON /tr "C:\Windows\system32\Windows\Windows Host Process.exe" /rl HIGHEST /f
Network
| Country | Destination | Domain | Proto |
| US | 147.185.221.22:10340 | tcp | |
| US | 147.185.221.22:10340 | tcp | |
| US | 147.185.221.22:10340 | tcp | |
| US | 147.185.221.22:10340 | tcp | |
| US | 147.185.221.22:10340 | tcp | |
| US | 147.185.221.22:10340 | tcp | |
| US | 147.185.221.22:10340 | tcp | |
| US | 147.185.221.22:10340 | tcp | |
| US | 147.185.221.22:10340 | tcp | |
| US | 147.185.221.22:10340 | tcp | |
| US | 147.185.221.22:10340 | tcp | |
| US | 147.185.221.22:10340 | tcp | |
| US | 147.185.221.22:10340 | tcp | |
| US | 147.185.221.22:10340 | tcp | |
| US | 147.185.221.22:10340 | tcp | |
| US | 147.185.221.22:10340 | tcp |
Files
memory/2436-0-0x000007FEF5EB3000-0x000007FEF5EB4000-memory.dmp
memory/2436-1-0x0000000000B50000-0x0000000000EB0000-memory.dmp
memory/2436-2-0x000007FEF5EB0000-0x000007FEF689C000-memory.dmp
C:\Windows\System32\Windows\Windows Host Process.exe
| MD5 | bc04ef1699a3b490ff2703a0bb2dcca0 |
| SHA1 | b3f70784fb7c7ef0a3cca81280ede2ffe2671e35 |
| SHA256 | 844f43264b78b25a6526ab5f9997cca8243f67d51400f2abd4fd3c777b5fb983 |
| SHA512 | e3d11bd54f4409c3a846e6466063d5e29f8222b3c2a2291b19401632a7a3884ed6bde8327c664f2b43e6e67914fca1eae4805730adbfd37706ac4d7e0a28a2e1 |
memory/2104-11-0x000007FEF5EB0000-0x000007FEF689C000-memory.dmp
memory/2104-10-0x000007FEF5EB0000-0x000007FEF689C000-memory.dmp
memory/2436-9-0x000007FEF5EB0000-0x000007FEF689C000-memory.dmp
memory/2104-8-0x0000000000170000-0x00000000004D0000-memory.dmp
memory/2104-12-0x000007FEF5EB0000-0x000007FEF689C000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-18 22:12
Reported
2024-08-18 22:15
Platform
win10v2004-20240802-en
Max time kernel
150s
Max time network
154s
Command Line
Signatures
Quasar RAT
Quasar payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
| N/A | N/A | N/A | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\Windows\Windows Host Process.exe | N/A |
Drops file in System32 directory
| Description | Indicator | Process | Target |
| File opened for modification | C:\Windows\system32\Windows | C:\Windows\system32\Windows\Windows Host Process.exe | N/A |
| File created | C:\Windows\system32\Windows\Windows Host Process.exe | C:\Users\Admin\AppData\Local\Temp\844f43264b78b25a6526ab5f9997cca8243f67d51400f2abd4fd3c777b5fb983.exe | N/A |
| File opened for modification | C:\Windows\system32\Windows\Windows Host Process.exe | C:\Users\Admin\AppData\Local\Temp\844f43264b78b25a6526ab5f9997cca8243f67d51400f2abd4fd3c777b5fb983.exe | N/A |
| File opened for modification | C:\Windows\system32\Windows | C:\Users\Admin\AppData\Local\Temp\844f43264b78b25a6526ab5f9997cca8243f67d51400f2abd4fd3c777b5fb983.exe | N/A |
| File opened for modification | C:\Windows\system32\Windows\Windows Host Process.exe | C:\Windows\system32\Windows\Windows Host Process.exe | N/A |
Scheduled Task/Job: Scheduled Task
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SYSTEM32\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\SYSTEM32\schtasks.exe | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\844f43264b78b25a6526ab5f9997cca8243f67d51400f2abd4fd3c777b5fb983.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\system32\Windows\Windows Host Process.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\Windows\Windows Host Process.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\844f43264b78b25a6526ab5f9997cca8243f67d51400f2abd4fd3c777b5fb983.exe
"C:\Users\Admin\AppData\Local\Temp\844f43264b78b25a6526ab5f9997cca8243f67d51400f2abd4fd3c777b5fb983.exe"
C:\Windows\SYSTEM32\schtasks.exe
"schtasks" /create /tn "Windows Host Process" /sc ONLOGON /tr "C:\Windows\system32\Windows\Windows Host Process.exe" /rl HIGHEST /f
C:\Windows\system32\Windows\Windows Host Process.exe
"C:\Windows\system32\Windows\Windows Host Process.exe"
C:\Windows\SYSTEM32\schtasks.exe
"schtasks" /create /tn "Windows Host Process" /sc ONLOGON /tr "C:\Windows\system32\Windows\Windows Host Process.exe" /rl HIGHEST /f
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.221.184.93.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 23.159.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 147.185.221.22:10340 | tcp | |
| US | 8.8.8.8:53 | 22.221.185.147.in-addr.arpa | udp |
| US | 147.185.221.22:10340 | tcp | |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 147.185.221.22:10340 | tcp | |
| US | 147.185.221.22:10340 | tcp | |
| US | 147.185.221.22:10340 | tcp | |
| US | 8.8.8.8:53 | 26.165.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.31.95.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 147.185.221.22:10340 | tcp | |
| US | 147.185.221.22:10340 | tcp | |
| US | 147.185.221.22:10340 | tcp | |
| US | 147.185.221.22:10340 | tcp | |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| US | 147.185.221.22:10340 | tcp | |
| US | 147.185.221.22:10340 | tcp | |
| US | 8.8.8.8:53 | 21.236.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
| US | 147.185.221.22:10340 | tcp | |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.28.10:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 10.28.171.150.in-addr.arpa | udp |
| US | 8.8.8.8:53 | udp |
Files
memory/744-0-0x00007FFE509A3000-0x00007FFE509A5000-memory.dmp
memory/744-1-0x0000000000070000-0x00000000003D0000-memory.dmp
memory/744-2-0x00007FFE509A0000-0x00007FFE51461000-memory.dmp
C:\Windows\System32\Windows\Windows Host Process.exe
| MD5 | bc04ef1699a3b490ff2703a0bb2dcca0 |
| SHA1 | b3f70784fb7c7ef0a3cca81280ede2ffe2671e35 |
| SHA256 | 844f43264b78b25a6526ab5f9997cca8243f67d51400f2abd4fd3c777b5fb983 |
| SHA512 | e3d11bd54f4409c3a846e6466063d5e29f8222b3c2a2291b19401632a7a3884ed6bde8327c664f2b43e6e67914fca1eae4805730adbfd37706ac4d7e0a28a2e1 |
memory/744-9-0x00007FFE509A0000-0x00007FFE51461000-memory.dmp
memory/4888-10-0x00007FFE509A0000-0x00007FFE51461000-memory.dmp
memory/4888-11-0x00007FFE509A0000-0x00007FFE51461000-memory.dmp
memory/4888-12-0x000000001B480000-0x000000001B4D0000-memory.dmp
memory/4888-13-0x000000001BE20000-0x000000001BED2000-memory.dmp
memory/4888-16-0x00007FFE509A0000-0x00007FFE51461000-memory.dmp