Analysis Overview
SHA256
1d686b05f745875e28939abe357baedd169b59f5a0d8825b602fd803a6303ba3
Threat Level: Known bad
The file 1d686b05f745875e28939abe357baedd169b59f5a0d8825b602fd803a6303ba3 was found to be: Known bad.
Malicious Activity Summary
Quasar payload
Quasar family
Quasar RAT
Executes dropped EXE
Unsigned PE
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Scheduled Task/Job: Scheduled Task
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-07-28 16:08
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
2024-07-28 16:08
Reported
2024-07-28 16:11
Platform
win10v2004-20240704-en
Max time kernel
149s
Max time network
156s
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:\Users\Admin\AppData\Roaming\browser\edge.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\1d686b05f745875e28939abe357baedd169b59f5a0d8825b602fd803a6303ba3.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\browser\edge.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\browser\edge.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 2284 wrote to memory of 3216 | N/A | C:\Users\Admin\AppData\Local\Temp\1d686b05f745875e28939abe357baedd169b59f5a0d8825b602fd803a6303ba3.exe | C:\Windows\SYSTEM32\schtasks.exe |
| PID 2284 wrote to memory of 3216 | N/A | C:\Users\Admin\AppData\Local\Temp\1d686b05f745875e28939abe357baedd169b59f5a0d8825b602fd803a6303ba3.exe | C:\Windows\SYSTEM32\schtasks.exe |
| PID 2284 wrote to memory of 2344 | N/A | C:\Users\Admin\AppData\Local\Temp\1d686b05f745875e28939abe357baedd169b59f5a0d8825b602fd803a6303ba3.exe | C:\Users\Admin\AppData\Roaming\browser\edge.exe |
| PID 2284 wrote to memory of 2344 | N/A | C:\Users\Admin\AppData\Local\Temp\1d686b05f745875e28939abe357baedd169b59f5a0d8825b602fd803a6303ba3.exe | C:\Users\Admin\AppData\Roaming\browser\edge.exe |
| PID 2344 wrote to memory of 3180 | N/A | C:\Users\Admin\AppData\Roaming\browser\edge.exe | C:\Windows\SYSTEM32\schtasks.exe |
| PID 2344 wrote to memory of 3180 | N/A | C:\Users\Admin\AppData\Roaming\browser\edge.exe | C:\Windows\SYSTEM32\schtasks.exe |
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\1d686b05f745875e28939abe357baedd169b59f5a0d8825b602fd803a6303ba3.exe
"C:\Users\Admin\AppData\Local\Temp\1d686b05f745875e28939abe357baedd169b59f5a0d8825b602fd803a6303ba3.exe"
C:\Windows\SYSTEM32\schtasks.exe
"schtasks" /create /tn "Chrome" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\browser\edge.exe" /rl HIGHEST /f
C:\Users\Admin\AppData\Roaming\browser\edge.exe
"C:\Users\Admin\AppData\Roaming\browser\edge.exe"
C:\Windows\SYSTEM32\schtasks.exe
"schtasks" /create /tn "Chrome" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\browser\edge.exe" /rl HIGHEST /f
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 18.58.20.217.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 20.160.190.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 43.58.199.20.in-addr.arpa | udp |
| DE | 193.42.11.9:4329 | tcp | |
| US | 8.8.8.8:53 | ipwho.is | udp |
| DE | 195.201.57.90:443 | ipwho.is | tcp |
| US | 8.8.8.8:53 | 9.11.42.193.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 90.57.201.195.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 86.23.85.13.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 147.142.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 240.143.123.92.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 19.229.111.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 88.156.103.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | tse1.mm.bing.net | udp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 150.171.27.10:443 | tse1.mm.bing.net | tcp |
| US | 8.8.8.8:53 | 28.173.189.20.in-addr.arpa | udp |
Files
memory/2284-0-0x00007FFA55E33000-0x00007FFA55E35000-memory.dmp
memory/2284-1-0x00000000001A0000-0x00000000004C4000-memory.dmp
memory/2284-2-0x00007FFA55E30000-0x00007FFA568F1000-memory.dmp
C:\Users\Admin\AppData\Roaming\browser\edge.exe
| MD5 | e3e1f7fa42dd68f410bb885f0aefe5e3 |
| SHA1 | d51edc519d86a11e6533cd4cac8f190dd3f7d4bb |
| SHA256 | 1d686b05f745875e28939abe357baedd169b59f5a0d8825b602fd803a6303ba3 |
| SHA512 | 92ac0379074366a4dbb9235d8c61935be6d8086629611dbcdecdaf680a0a8636f7810d4f6394dbdee5b1e463842284ab9855534da4627677965557e8eb609aa3 |
memory/2344-8-0x00007FFA55E30000-0x00007FFA568F1000-memory.dmp
memory/2284-9-0x00007FFA55E30000-0x00007FFA568F1000-memory.dmp
memory/2344-10-0x00007FFA55E30000-0x00007FFA568F1000-memory.dmp
memory/2344-11-0x000000001BCF0000-0x000000001BD40000-memory.dmp
memory/2344-12-0x000000001BE00000-0x000000001BEB2000-memory.dmp
memory/2344-15-0x0000000002B00000-0x0000000002B12000-memory.dmp
memory/2344-16-0x000000001BD80000-0x000000001BDBC000-memory.dmp
memory/2344-17-0x00007FFA55E30000-0x00007FFA568F1000-memory.dmp
memory/2344-18-0x00007FFA55E30000-0x00007FFA568F1000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-07-28 16:08
Reported
2024-07-28 16:11
Platform
win11-20240709-en
Max time kernel
145s
Max time network
160s
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:\Users\Admin\AppData\Roaming\browser\edge.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\1d686b05f745875e28939abe357baedd169b59f5a0d8825b602fd803a6303ba3.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\browser\edge.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\browser\edge.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4816 wrote to memory of 1380 | N/A | C:\Users\Admin\AppData\Local\Temp\1d686b05f745875e28939abe357baedd169b59f5a0d8825b602fd803a6303ba3.exe | C:\Windows\SYSTEM32\schtasks.exe |
| PID 4816 wrote to memory of 1380 | N/A | C:\Users\Admin\AppData\Local\Temp\1d686b05f745875e28939abe357baedd169b59f5a0d8825b602fd803a6303ba3.exe | C:\Windows\SYSTEM32\schtasks.exe |
| PID 4816 wrote to memory of 2424 | N/A | C:\Users\Admin\AppData\Local\Temp\1d686b05f745875e28939abe357baedd169b59f5a0d8825b602fd803a6303ba3.exe | C:\Users\Admin\AppData\Roaming\browser\edge.exe |
| PID 4816 wrote to memory of 2424 | N/A | C:\Users\Admin\AppData\Local\Temp\1d686b05f745875e28939abe357baedd169b59f5a0d8825b602fd803a6303ba3.exe | C:\Users\Admin\AppData\Roaming\browser\edge.exe |
| PID 2424 wrote to memory of 2124 | N/A | C:\Users\Admin\AppData\Roaming\browser\edge.exe | C:\Windows\SYSTEM32\schtasks.exe |
| PID 2424 wrote to memory of 2124 | N/A | C:\Users\Admin\AppData\Roaming\browser\edge.exe | C:\Windows\SYSTEM32\schtasks.exe |
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\1d686b05f745875e28939abe357baedd169b59f5a0d8825b602fd803a6303ba3.exe
"C:\Users\Admin\AppData\Local\Temp\1d686b05f745875e28939abe357baedd169b59f5a0d8825b602fd803a6303ba3.exe"
C:\Windows\SYSTEM32\schtasks.exe
"schtasks" /create /tn "Chrome" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\browser\edge.exe" /rl HIGHEST /f
C:\Users\Admin\AppData\Roaming\browser\edge.exe
"C:\Users\Admin\AppData\Roaming\browser\edge.exe"
C:\Windows\SYSTEM32\schtasks.exe
"schtasks" /create /tn "Chrome" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\browser\edge.exe" /rl HIGHEST /f
Network
| Country | Destination | Domain | Proto |
| DE | 193.42.11.9:4329 | tcp | |
| US | 8.8.8.8:53 | 9.11.42.193.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| DE | 195.201.57.90:443 | ipwho.is | tcp |
Files
memory/4816-0-0x00007FF9FE7D3000-0x00007FF9FE7D5000-memory.dmp
memory/4816-1-0x0000000000B10000-0x0000000000E34000-memory.dmp
memory/4816-2-0x00007FF9FE7D0000-0x00007FF9FF292000-memory.dmp
C:\Users\Admin\AppData\Roaming\browser\edge.exe
| MD5 | e3e1f7fa42dd68f410bb885f0aefe5e3 |
| SHA1 | d51edc519d86a11e6533cd4cac8f190dd3f7d4bb |
| SHA256 | 1d686b05f745875e28939abe357baedd169b59f5a0d8825b602fd803a6303ba3 |
| SHA512 | 92ac0379074366a4dbb9235d8c61935be6d8086629611dbcdecdaf680a0a8636f7810d4f6394dbdee5b1e463842284ab9855534da4627677965557e8eb609aa3 |
memory/2424-8-0x00007FF9FE7D0000-0x00007FF9FF292000-memory.dmp
memory/4816-9-0x00007FF9FE7D0000-0x00007FF9FF292000-memory.dmp
memory/2424-10-0x00007FF9FE7D0000-0x00007FF9FF292000-memory.dmp
memory/2424-11-0x000000001C890000-0x000000001C8E0000-memory.dmp
memory/2424-12-0x000000001C9A0000-0x000000001CA52000-memory.dmp
memory/2424-15-0x000000001C910000-0x000000001C922000-memory.dmp
memory/2424-16-0x000000001D0B0000-0x000000001D0EC000-memory.dmp
memory/2424-17-0x00007FF9FE7D0000-0x00007FF9FF292000-memory.dmp
memory/2424-18-0x00007FF9FE7D0000-0x00007FF9FF292000-memory.dmp