Analysis Overview
SHA256
9d7cd0429734cb72bc0205287461e459c51cee40f34e5e54513da2315bf8e84a
Threat Level: Known bad
The file Client-built.exe was found to be: Known bad.
Malicious Activity Summary
Quasar RAT
Quasar payload
Quasar family
Checks computer location settings
Unsigned PE
Enumerates physical storage devices
System Network Configuration Discovery: Internet Connection Discovery
Runs ping.exe
Suspicious use of WriteProcessMemory
Checks SCSI registry key(s)
Opens file in notepad (likely ransom note)
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-12-13 15:07
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
2024-12-13 15:07
Reported
2024-12-13 15:12
Platform
win10v2004-20241007-en
Max time kernel
193s
Max time network
254s
Command Line
Signatures
Quasar RAT
Quasar family
Quasar payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Local\Temp\Client-built.exe | N/A |
Enumerates physical storage devices
System Network Configuration Discovery: Internet Connection Discovery
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\NOTEPAD.EXE | N/A |
| N/A | N/A | C:\Windows\system32\PING.EXE | N/A |
Checks SCSI registry key(s)
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000 | C:\Windows\system32\taskmgr.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A | C:\Windows\system32\taskmgr.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\FriendlyName | C:\Windows\system32\taskmgr.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000 | C:\Windows\system32\taskmgr.exe | N/A |
| Key opened | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A | C:\Windows\system32\taskmgr.exe | N/A |
| Key value queried | \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_WDC&Prod_WDS100T2B0A\4&215468a5&0&000000\FriendlyName | C:\Windows\system32\taskmgr.exe | N/A |
Opens file in notepad (likely ransom note)
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\System32\NOTEPAD.EXE | N/A |
Runs ping.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\PING.EXE | N/A |
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\Client-built.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\system32\taskmgr.exe | N/A |
| Token: SeSystemProfilePrivilege | N/A | C:\Windows\system32\taskmgr.exe | N/A |
| Token: SeCreateGlobalPrivilege | N/A | C:\Windows\system32\taskmgr.exe | N/A |
| Token: 33 | N/A | C:\Windows\system32\taskmgr.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\taskmgr.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Windows\system32\taskmgr.exe | N/A |
| Token: SeSystemProfilePrivilege | N/A | C:\Windows\system32\taskmgr.exe | N/A |
| Token: SeCreateGlobalPrivilege | N/A | C:\Windows\system32\taskmgr.exe | N/A |
| Token: 33 | N/A | C:\Windows\system32\taskmgr.exe | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\taskmgr.exe | N/A |
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 3472 wrote to memory of 2124 | N/A | C:\Users\Admin\AppData\Local\Temp\Client-built.exe | C:\Windows\system32\cmd.exe |
| PID 3472 wrote to memory of 2124 | N/A | C:\Users\Admin\AppData\Local\Temp\Client-built.exe | C:\Windows\system32\cmd.exe |
| PID 2124 wrote to memory of 3752 | N/A | C:\Windows\system32\cmd.exe | C:\Windows\system32\chcp.com |
| PID 2124 wrote to memory of 3752 | N/A | C:\Windows\system32\cmd.exe | C:\Windows\system32\chcp.com |
| PID 2124 wrote to memory of 4368 | N/A | C:\Windows\system32\cmd.exe | C:\Windows\system32\PING.EXE |
| PID 2124 wrote to memory of 4368 | N/A | C:\Windows\system32\cmd.exe | C:\Windows\system32\PING.EXE |
Processes
C:\Users\Admin\AppData\Local\Temp\Client-built.exe
"C:\Users\Admin\AppData\Local\Temp\Client-built.exe"
C:\Windows\system32\taskmgr.exe
"C:\Windows\system32\taskmgr.exe" /4
C:\Windows\System32\NOTEPAD.EXE
"C:\Windows\System32\NOTEPAD.EXE" C:\Users\Admin\Desktop\TestPing.bat
C:\Windows\system32\taskmgr.exe
"C:\Windows\system32\taskmgr.exe" /4
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\R5lgPTvEjPBk.bat" "
C:\Windows\system32\chcp.com
chcp 65001
C:\Windows\system32\PING.EXE
ping -n 10 localhost
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 196.249.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 180.129.81.91.in-addr.arpa | udp |
| US | 8.8.8.8:53 | Waix-40247.portmap.host | udp |
| DE | 193.161.193.99:40247 | Waix-40247.portmap.host | tcp |
| US | 8.8.8.8:53 | 134.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | ipwho.is | udp |
| DE | 195.201.57.90:443 | ipwho.is | tcp |
| US | 8.8.8.8:53 | 99.193.161.193.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 90.57.201.195.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 241.150.49.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 217.106.137.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 200.163.202.172.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| DE | 193.161.193.99:40247 | Waix-40247.portmap.host | tcp |
| US | 8.8.8.8:53 | 86.49.80.91.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.214.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 48.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 172.210.232.199.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 4.173.189.20.in-addr.arpa | udp |
Files
memory/3472-0-0x00007FFEAFD03000-0x00007FFEAFD05000-memory.dmp
memory/3472-1-0x00000000007F0000-0x0000000000B14000-memory.dmp
memory/3472-2-0x00007FFEAFD00000-0x00007FFEB07C1000-memory.dmp
memory/3472-3-0x000000001C210000-0x000000001C260000-memory.dmp
memory/3472-4-0x000000001C320000-0x000000001C3D2000-memory.dmp
memory/3472-7-0x000000001C260000-0x000000001C272000-memory.dmp
memory/3472-8-0x000000001C2C0000-0x000000001C2FC000-memory.dmp
memory/3472-9-0x00007FFEAFD03000-0x00007FFEAFD05000-memory.dmp
memory/3472-10-0x00007FFEAFD00000-0x00007FFEB07C1000-memory.dmp
memory/2708-11-0x0000019A55A70000-0x0000019A55A71000-memory.dmp
memory/2708-13-0x0000019A55A70000-0x0000019A55A71000-memory.dmp
memory/2708-12-0x0000019A55A70000-0x0000019A55A71000-memory.dmp
memory/2708-19-0x0000019A55A70000-0x0000019A55A71000-memory.dmp
memory/2708-23-0x0000019A55A70000-0x0000019A55A71000-memory.dmp
memory/2708-22-0x0000019A55A70000-0x0000019A55A71000-memory.dmp
memory/2708-21-0x0000019A55A70000-0x0000019A55A71000-memory.dmp
memory/2708-20-0x0000019A55A70000-0x0000019A55A71000-memory.dmp
memory/2708-17-0x0000019A55A70000-0x0000019A55A71000-memory.dmp
memory/2708-18-0x0000019A55A70000-0x0000019A55A71000-memory.dmp
memory/4652-25-0x000001C716720000-0x000001C716721000-memory.dmp
memory/4652-26-0x000001C716720000-0x000001C716721000-memory.dmp
memory/4652-24-0x000001C716720000-0x000001C716721000-memory.dmp
C:\Users\Admin\AppData\Local\D3DSCache\e8010882af4f153f\F4EB2D6C-ED2B-4BDD-AD9D-F913287E6768.val
| MD5 | 6bd369f7c74a28194c991ed1404da30f |
| SHA1 | 0f8e3f8ab822c9374409fe399b6bfe5d68cbd643 |
| SHA256 | 878947d0ec814fe7c343cdebc05eebf00eb14f3023bdb3809a559e17f399fe5d |
| SHA512 | 8fc5f073dc9fa1e1ae47c60a5f06e0a48709fd6a4302dffaa721858409e7bde64bc6856d3fb28891090516d1a7afc542579de287778b5755eafe75cc67d45d93 |
C:\Users\Admin\AppData\Local\D3DSCache\e8010882af4f153f\F4EB2D6C-ED2B-4BDD-AD9D-F913287E6768.idx
| MD5 | d2fb266b97caff2086bf0fa74eddb6b2 |
| SHA1 | 2f0061ce9c51b5b4fbab76b37fc6a540be7f805d |
| SHA256 | b09f68b61d9ff5a7c7c8b10eee9447d4813ee0e866346e629e788cd4adecb66a |
| SHA512 | c3ba95a538c1d266beb83334af755c34ce642a4178ab0f2e5f7822fd6821d3b68862a8b58f167a9294e6d913b08c1054a69b5d7aec2efdb3cf9796ed84de21a8 |
C:\Users\Admin\AppData\Local\D3DSCache\e8010882af4f153f\F4EB2D6C-ED2B-4BDD-AD9D-F913287E6768.lock
| MD5 | f49655f856acb8884cc0ace29216f511 |
| SHA1 | cb0f1f87ec0455ec349aaa950c600475ac7b7b6b |
| SHA256 | 7852fce59c67ddf1d6b8b997eaa1adfac004a9f3a91c37295de9223674011fba |
| SHA512 | 599e93d25b174524495ed29653052b3590133096404873318f05fd68f4c9a5c9a3b30574551141fbb73d7329d6be342699a17f3ae84554bab784776dfda2d5f8 |
memory/4652-31-0x000001C716720000-0x000001C716721000-memory.dmp
memory/4652-36-0x000001C716720000-0x000001C716721000-memory.dmp
memory/4652-35-0x000001C716720000-0x000001C716721000-memory.dmp
memory/4652-34-0x000001C716720000-0x000001C716721000-memory.dmp
memory/4652-33-0x000001C716720000-0x000001C716721000-memory.dmp
memory/4652-32-0x000001C716720000-0x000001C716721000-memory.dmp
memory/3472-42-0x00007FFEAFD00000-0x00007FFEB07C1000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\R5lgPTvEjPBk.bat
| MD5 | 15651fd2c48831fa6fe43d58c28d453c |
| SHA1 | 60a75652f41149b0569078586e1d6baabd4ec428 |
| SHA256 | 881adbe1f1943acc3196aaa78a2467be33ea4b00b19873fe44aa36da5aeb92ec |
| SHA512 | 376300d9b6304983a2dbaf1a8f6f46cabecfb7cbfe2960a32a9d25ddd993c447fdf7bc7a1659dc9a265ebff3e6e5e9451d3a33ef5cd9accc4c1ecfb3f7d1281a |