Analysis Overview
SHA256
c18119713c678bbea78db54da4099ec7c5ff05e06b9c2904f08e9a2bca0219aa
Threat Level: Known bad
The file gold.exe was found to be: Known bad.
Malicious Activity Summary
Quasar RAT
Executes dropped EXE
Looks up external IP address via web service
Adds Run key to start application
Drops file in Program Files directory
Unsigned PE
Scheduled Task/Job: Scheduled Task
Suspicious use of SetWindowsHookEx
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-06-29 22:58
Signatures
Unsigned PE
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Analysis: behavioral1
Detonation Overview
Submitted
2024-06-29 22:58
Reported
2024-06-29 23:01
Platform
win7-20240611-en
Max time kernel
184s
Max time network
191s
Command Line
Signatures
Quasar RAT
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\SubDir\Client.exe | N/A |
Adds Run key to start application
| Description | Indicator | Process | Target |
| Set value (str) | \REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000\Software\Microsoft\Windows\CurrentVersion\Run\Steam = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\gold.exe\"" | C:\Users\Admin\AppData\Local\Temp\gold.exe | N/A |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | ip-api.com | N/A | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\Program Files (x86)\SubDir\Client.exe | C:\Users\Admin\AppData\Local\Temp\gold.exe | N/A |
| File opened for modification | C:\Program Files (x86)\SubDir\Client.exe | C:\Users\Admin\AppData\Local\Temp\gold.exe | N/A |
| File opened for modification | C:\Program Files (x86)\SubDir\Client.exe | C:\Program Files (x86)\SubDir\Client.exe | N/A |
| File opened for modification | C:\Program Files (x86)\SubDir | C:\Program Files (x86)\SubDir\Client.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\gold.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Program Files (x86)\SubDir\Client.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\SubDir\Client.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\gold.exe
"C:\Users\Admin\AppData\Local\Temp\gold.exe"
C:\Windows\system32\schtasks.exe
"schtasks" /create /tn "Steam" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\gold.exe" /rl HIGHEST /f
C:\Program Files (x86)\SubDir\Client.exe
"C:\Program Files (x86)\SubDir\Client.exe"
C:\Windows\system32\schtasks.exe
"schtasks" /create /tn "Steam" /sc ONLOGON /tr "C:\Program Files (x86)\SubDir\Client.exe" /rl HIGHEST /f
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | ip-api.com | udp |
| US | 208.95.112.1:80 | ip-api.com | tcp |
| US | 208.95.112.1:80 | ip-api.com | tcp |
| US | 8.8.8.8:53 | Ratrat2-57487.portmap.host | udp |
| DE | 193.161.193.99:57487 | Ratrat2-57487.portmap.host | tcp |
| DE | 193.161.193.99:57487 | Ratrat2-57487.portmap.host | tcp |
| DE | 193.161.193.99:57487 | Ratrat2-57487.portmap.host | tcp |
| DE | 193.161.193.99:57487 | Ratrat2-57487.portmap.host | tcp |
| DE | 193.161.193.99:57487 | Ratrat2-57487.portmap.host | tcp |
| DE | 193.161.193.99:57487 | Ratrat2-57487.portmap.host | tcp |
Files
memory/2924-0-0x000007FEF56E3000-0x000007FEF56E4000-memory.dmp
memory/2924-1-0x0000000001160000-0x0000000001168000-memory.dmp
memory/2924-2-0x0000000000BA0000-0x0000000000C3E000-memory.dmp
memory/2924-3-0x000007FEF56E0000-0x000007FEF60CC000-memory.dmp
C:\Program Files (x86)\SubDir\Client.exe
| MD5 | b769a45330b8bb61879f95faab68a297 |
| SHA1 | 085bab79dba61f06651d9904a0966059678f7abb |
| SHA256 | c18119713c678bbea78db54da4099ec7c5ff05e06b9c2904f08e9a2bca0219aa |
| SHA512 | 2841523621dfc463d6256fc6b91daec3861d61e8122b8b912c0da4642d721ad34aca6a8dce8deabcf46d3bfc7f31ceca7bef743ecfe4ea1b0378c28f6b8ca30d |
memory/2716-9-0x00000000013E0000-0x00000000013E8000-memory.dmp
memory/2716-10-0x000007FEF56E0000-0x000007FEF60CC000-memory.dmp
memory/2716-11-0x000007FEF56E0000-0x000007FEF60CC000-memory.dmp
memory/2924-12-0x000007FEF56E0000-0x000007FEF60CC000-memory.dmp
memory/2716-14-0x000007FEF56E0000-0x000007FEF60CC000-memory.dmp
memory/2716-15-0x000007FEF56E0000-0x000007FEF60CC000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-06-29 22:58
Reported
2024-06-29 23:01
Platform
win10v2004-20240611-en
Max time kernel
189s
Max time network
193s
Command Line
Signatures
Quasar RAT
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\SubDir\Client.exe | N/A |
Looks up external IP address via web service
| Description | Indicator | Process | Target |
| N/A | ip-api.com | N/A | N/A |
Drops file in Program Files directory
| Description | Indicator | Process | Target |
| File created | C:\Program Files (x86)\SubDir\Client.exe | C:\Users\Admin\AppData\Local\Temp\gold.exe | N/A |
| File opened for modification | C:\Program Files (x86)\SubDir\Client.exe | C:\Users\Admin\AppData\Local\Temp\gold.exe | N/A |
| File opened for modification | C:\Program Files (x86)\SubDir\Client.exe | C:\Program Files (x86)\SubDir\Client.exe | N/A |
| File opened for modification | C:\Program Files (x86)\SubDir | C:\Program Files (x86)\SubDir\Client.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\gold.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Program Files (x86)\SubDir\Client.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files (x86)\SubDir\Client.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 4220 wrote to memory of 2500 | N/A | C:\Users\Admin\AppData\Local\Temp\gold.exe | C:\Windows\SYSTEM32\schtasks.exe |
| PID 4220 wrote to memory of 2500 | N/A | C:\Users\Admin\AppData\Local\Temp\gold.exe | C:\Windows\SYSTEM32\schtasks.exe |
| PID 4220 wrote to memory of 4244 | N/A | C:\Users\Admin\AppData\Local\Temp\gold.exe | C:\Program Files (x86)\SubDir\Client.exe |
| PID 4220 wrote to memory of 4244 | N/A | C:\Users\Admin\AppData\Local\Temp\gold.exe | C:\Program Files (x86)\SubDir\Client.exe |
| PID 4244 wrote to memory of 1836 | N/A | C:\Program Files (x86)\SubDir\Client.exe | C:\Windows\SYSTEM32\schtasks.exe |
| PID 4244 wrote to memory of 1836 | N/A | C:\Program Files (x86)\SubDir\Client.exe | C:\Windows\SYSTEM32\schtasks.exe |
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\gold.exe
"C:\Users\Admin\AppData\Local\Temp\gold.exe"
C:\Windows\SYSTEM32\schtasks.exe
"schtasks" /create /tn "Steam" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\gold.exe" /rl HIGHEST /f
C:\Program Files (x86)\SubDir\Client.exe
"C:\Program Files (x86)\SubDir\Client.exe"
C:\Windows\SYSTEM32\schtasks.exe
"schtasks" /create /tn "Steam" /sc ONLOGON /tr "C:\Program Files (x86)\SubDir\Client.exe" /rl HIGHEST /f
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | ip-api.com | udp |
| US | 208.95.112.1:80 | ip-api.com | tcp |
| US | 8.8.8.8:53 | 97.17.167.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 1.112.95.208.in-addr.arpa | udp |
| US | 208.95.112.1:80 | ip-api.com | tcp |
| US | 8.8.8.8:53 | 95.221.229.192.in-addr.arpa | udp |
| US | 8.8.8.8:53 | Ratrat2-57487.portmap.host | udp |
| DE | 193.161.193.99:57487 | Ratrat2-57487.portmap.host | tcp |
| US | 8.8.8.8:53 | 57.169.31.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 99.193.161.193.in-addr.arpa | udp |
| US | 52.182.143.211:443 | tcp | |
| US | 8.8.8.8:53 | 183.59.114.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 15.164.165.52.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 92.12.20.2.in-addr.arpa | udp |
| PL | 93.184.221.240:80 | tcp | |
| US | 8.8.8.8:53 | 30.243.111.52.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 | 8.8.8.8:53 | 10.27.171.150.in-addr.arpa | udp |
| DE | 193.161.193.99:57487 | Ratrat2-57487.portmap.host | tcp |
| DE | 193.161.193.99:57487 | Ratrat2-57487.portmap.host | tcp |
| DE | 193.161.193.99:57487 | Ratrat2-57487.portmap.host | tcp |
| DE | 193.161.193.99:57487 | Ratrat2-57487.portmap.host | tcp |
| DE | 193.161.193.99:57487 | Ratrat2-57487.portmap.host | tcp |
| DE | 193.161.193.99:57487 | Ratrat2-57487.portmap.host | tcp |
Files
memory/4220-0-0x00007FFBA4EC3000-0x00007FFBA4EC5000-memory.dmp
memory/4220-1-0x00000000006F0000-0x00000000006F8000-memory.dmp
memory/4220-2-0x0000000002890000-0x000000000292E000-memory.dmp
memory/4220-3-0x00007FFBA4EC0000-0x00007FFBA5981000-memory.dmp
memory/4220-4-0x0000000001030000-0x0000000001042000-memory.dmp
memory/4220-5-0x0000000002930000-0x000000000296C000-memory.dmp
C:\Program Files (x86)\SubDir\Client.exe
| MD5 | b769a45330b8bb61879f95faab68a297 |
| SHA1 | 085bab79dba61f06651d9904a0966059678f7abb |
| SHA256 | c18119713c678bbea78db54da4099ec7c5ff05e06b9c2904f08e9a2bca0219aa |
| SHA512 | 2841523621dfc463d6256fc6b91daec3861d61e8122b8b912c0da4642d721ad34aca6a8dce8deabcf46d3bfc7f31ceca7bef743ecfe4ea1b0378c28f6b8ca30d |
memory/4244-12-0x00007FFBA4EC0000-0x00007FFBA5981000-memory.dmp
memory/4220-13-0x00007FFBA4EC0000-0x00007FFBA5981000-memory.dmp
memory/4244-14-0x00007FFBA4EC0000-0x00007FFBA5981000-memory.dmp
memory/4244-16-0x00007FFBA4EC0000-0x00007FFBA5981000-memory.dmp
memory/4244-17-0x00007FFBA4EC0000-0x00007FFBA5981000-memory.dmp