Analysis Overview
SHA256
f5acec48afbdd2a4850462e4613ce91c983bc3a3498c69a306a4ca12ccd15de0
Threat Level: Known bad
The file Server.exe was found to be: Known bad.
Malicious Activity Summary
Quasar family
Quasar payload
Quasar RAT
Executes dropped EXE
Checks computer location settings
Unsigned PE
Enumerates physical storage devices
Suspicious use of WriteProcessMemory
Suspicious use of SetWindowsHookEx
Creates scheduled task(s)
Uses Task Scheduler COM API
Runs ping.exe
Suspicious use of AdjustPrivilegeToken
MITRE ATT&CK Matrix V13
Analysis: static1
Detonation Overview
Reported
2024-06-16 00:14
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
2024-06-16 00:14
Reported
2024-06-16 00:17
Platform
win10v2004-20240508-en
Max time kernel
147s
Max time network
150s
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 |
Checks computer location settings
| Description | Indicator | Process | Target |
| Key value queried | \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe | N/A |
| Key value queried | \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation | C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe | N/A |
Executes dropped EXE
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe | N/A |
Enumerates physical storage devices
Creates scheduled task(s)
| 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 |
| N/A | N/A | C:\Windows\SYSTEM32\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\SYSTEM32\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\SYSTEM32\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\SYSTEM32\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\SYSTEM32\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\SYSTEM32\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\SYSTEM32\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\SYSTEM32\schtasks.exe | N/A |
| N/A | N/A | C:\Windows\SYSTEM32\schtasks.exe | N/A |
Runs ping.exe
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\system32\PING.EXE | N/A |
| N/A | N/A | C:\Windows\system32\PING.EXE | N/A |
| N/A | N/A | C:\Windows\system32\PING.EXE | N/A |
| N/A | N/A | C:\Windows\system32\PING.EXE | N/A |
| N/A | N/A | C:\Windows\system32\PING.EXE | N/A |
| N/A | N/A | C:\Windows\system32\PING.EXE | N/A |
| N/A | N/A | C:\Windows\system32\PING.EXE | N/A |
| N/A | N/A | C:\Windows\system32\PING.EXE | N/A |
| N/A | N/A | C:\Windows\system32\PING.EXE | N/A |
Suspicious use of AdjustPrivilegeToken
| Description | Indicator | Process | Target |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Local\Temp\Server.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe | N/A |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\Server.exe
"C:\Users\Admin\AppData\Local\Temp\Server.exe"
C:\Windows\SYSTEM32\schtasks.exe
"schtasks" /create /tn "Runtime Broker" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe" /rl HIGHEST /f
C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe
"C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe"
C:\Windows\SYSTEM32\schtasks.exe
"schtasks" /create /tn "Runtime Broker" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe" /rl HIGHEST /f
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\ZgOFYQGD7GdB.bat" "
C:\Windows\system32\chcp.com
chcp 65001
C:\Windows\system32\PING.EXE
ping -n 10 localhost
C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe
"C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe"
C:\Windows\SYSTEM32\schtasks.exe
"schtasks" /create /tn "Runtime Broker" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe" /rl HIGHEST /f
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\kfpcDxRKldQs.bat" "
C:\Windows\system32\chcp.com
chcp 65001
C:\Windows\system32\PING.EXE
ping -n 10 localhost
C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe
"C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe"
C:\Windows\SYSTEM32\schtasks.exe
"schtasks" /create /tn "Runtime Broker" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe" /rl HIGHEST /f
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\GhRi7bwmFfU8.bat" "
C:\Windows\system32\chcp.com
chcp 65001
C:\Windows\system32\PING.EXE
ping -n 10 localhost
C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe
"C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe"
C:\Windows\SYSTEM32\schtasks.exe
"schtasks" /create /tn "Runtime Broker" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe" /rl HIGHEST /f
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\cZkjQhzBng59.bat" "
C:\Windows\system32\chcp.com
chcp 65001
C:\Windows\system32\PING.EXE
ping -n 10 localhost
C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe
"C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe"
C:\Windows\SYSTEM32\schtasks.exe
"schtasks" /create /tn "Runtime Broker" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe" /rl HIGHEST /f
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\EtitBYxhwK9T.bat" "
C:\Windows\system32\chcp.com
chcp 65001
C:\Windows\system32\PING.EXE
ping -n 10 localhost
C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe
"C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe"
C:\Windows\SYSTEM32\schtasks.exe
"schtasks" /create /tn "Runtime Broker" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe" /rl HIGHEST /f
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\gR2GQ7lkuif3.bat" "
C:\Windows\system32\chcp.com
chcp 65001
C:\Windows\system32\PING.EXE
ping -n 10 localhost
C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe
"C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe"
C:\Windows\SYSTEM32\schtasks.exe
"schtasks" /create /tn "Runtime Broker" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe" /rl HIGHEST /f
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\BNJxgWdkIKCb.bat" "
C:\Windows\system32\chcp.com
chcp 65001
C:\Windows\system32\PING.EXE
ping -n 10 localhost
C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe
"C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe"
C:\Windows\SYSTEM32\schtasks.exe
"schtasks" /create /tn "Runtime Broker" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe" /rl HIGHEST /f
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\jbr82g8PyY4s.bat" "
C:\Windows\system32\chcp.com
chcp 65001
C:\Windows\system32\PING.EXE
ping -n 10 localhost
C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe
"C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe"
C:\Windows\SYSTEM32\schtasks.exe
"schtasks" /create /tn "Runtime Broker" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe" /rl HIGHEST /f
C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\7BSb3BGgcHRX.bat" "
C:\Windows\system32\chcp.com
chcp 65001
C:\Windows\system32\PING.EXE
ping -n 10 localhost
C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe
"C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe"
C:\Windows\SYSTEM32\schtasks.exe
"schtasks" /create /tn "Runtime Broker" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe" /rl HIGHEST /f
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | battery-stripes.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | battery-stripes.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | battery-stripes.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | battery-stripes.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | battery-stripes.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | battery-stripes.gl.at.ply.gg | udp |
| US | 8.8.8.8:53 | battery-stripes.gl.at.ply.gg | udp |
Files
memory/4708-0-0x00007FFE444A3000-0x00007FFE444A5000-memory.dmp
memory/4708-1-0x00000000000F0000-0x0000000000414000-memory.dmp
memory/4708-2-0x00007FFE444A0000-0x00007FFE44F61000-memory.dmp
C:\Users\Admin\AppData\Roaming\WD\Runtime Broker.exe
| MD5 | e45a6c438c6ab1538b44fc43a242a5d3 |
| SHA1 | 00a85654779955ca989d1f2907ea1831b2511688 |
| SHA256 | f5acec48afbdd2a4850462e4613ce91c983bc3a3498c69a306a4ca12ccd15de0 |
| SHA512 | 806783dfc96b3a97c11675236d31f10c6540668e6149ab158eea680b0f84248b7b25ba4f36b4790250459b87e2b0bc91d551b07a79e236c8a4356df4f3878a6f |
memory/4708-9-0x00007FFE444A0000-0x00007FFE44F61000-memory.dmp
memory/1904-10-0x00007FFE444A0000-0x00007FFE44F61000-memory.dmp
memory/1904-11-0x00007FFE444A0000-0x00007FFE44F61000-memory.dmp
memory/1904-12-0x000000001BD20000-0x000000001BD70000-memory.dmp
memory/1904-13-0x000000001DE30000-0x000000001DEE2000-memory.dmp
memory/1904-18-0x00007FFE444A0000-0x00007FFE44F61000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\ZgOFYQGD7GdB.bat
| MD5 | e362e02a46d232bf067abe83bb004692 |
| SHA1 | 1e8f882b8a52ce4b84ecb5315cce3d5a2a48c9cd |
| SHA256 | 68a2772d6f906c19f769f7752c5ee67068989e538b81f53f57914266b0b334ec |
| SHA512 | 390b4a635ce3a6f524f84a38738ea8796ae1d189d469e7da9157a51e446e6fb4f758a16a70ae182ab7834825938af5752d7414d508b2a3c180e42d864ac7bed7 |
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\Runtime Broker.exe.log
| MD5 | 8f0271a63446aef01cf2bfc7b7c7976b |
| SHA1 | b70dad968e1dda14b55ad361b7fd4ef9ab6c06d7 |
| SHA256 | da740d78ae00b72cb3710d1a1256dc6431550965d20afaa65e5d5860a4748e8c |
| SHA512 | 78a403c69f1284b7dd41527019f3eede3512a5e4d439d846eca83557b741ca37bcf56c412f3e577b9dd4cfa5a6d6210961215f14cb271b143f6eb94f69389cf5 |
C:\Users\Admin\AppData\Local\Temp\kfpcDxRKldQs.bat
| MD5 | f89136d4aad1226fe28993364029bbfb |
| SHA1 | 02895d23e4c7a8b9874bd2aa4060f6cad5c3ca83 |
| SHA256 | cc2a1aab4b4f2cb3622a9d3e60268444f137c759e65bf74a8460eb0701430099 |
| SHA512 | b75fba159fbd7ccd82cad7a4a4b780498106704a39c99127e7b9d32d75b614cb1d31edb457593be3e34d75c7d93c53013028bb1ebe02c9888292f8d33a2912c0 |
C:\Users\Admin\AppData\Local\Temp\GhRi7bwmFfU8.bat
| MD5 | 267675d28b8239ebe3916f20fe928af4 |
| SHA1 | c7a841b2c571f18764b3bf66053cb621b5d32028 |
| SHA256 | 2906684caaf409a2e3d430e64a5df0783e78c643cebe6659ea3de3408d6246fe |
| SHA512 | c0e83203230eff279caf469bf4514d5b20bff863a97e4f54e96071d670ad5d154d5fd177b4fe59daab05d3ce94c2ebb89f4f6f029f30df48f2cee483bd26b876 |
C:\Users\Admin\AppData\Local\Temp\cZkjQhzBng59.bat
| MD5 | 32eec2c01df7647ba4481f04ffa3c692 |
| SHA1 | 94a3d2c505b6e8de38b3fe074cd7bd6df9069a7e |
| SHA256 | fe3a2b26f7e4186d9a44d94068dec885c72bbed20b46f60a3959ce960d5ab342 |
| SHA512 | 8d1602f37f7be8d676469cc5b18690a2e69d95166f85ddf0cbc6a5cb31e195753a4f6e2043a1fbe7124f087e4718daa04c3eecaadc381c51ea3edb59104452cb |
C:\Users\Admin\AppData\Local\Temp\EtitBYxhwK9T.bat
| MD5 | 271e9a5e111f6c018795adc0163fa3b2 |
| SHA1 | aab2237c9594f88bdbb0c6d1cb341a29ef10ece0 |
| SHA256 | 8bcbb9474c772162166bb857bb14f73f7021a328b1f970c738abbedb02955d27 |
| SHA512 | 16ab8d948c8f6e2438a56207960e4af65dd412af7547a246a58cfb0cc91f29cbed5238ff7d28759b049fcea82228665913f9b60fe7366a18a98b9b7040d644fc |
C:\Users\Admin\AppData\Local\Temp\gR2GQ7lkuif3.bat
| MD5 | 11093a9844eec0f768d36d169026bd9a |
| SHA1 | d48961fc1b0a01fc50e627718b18b2d1104431c3 |
| SHA256 | a99a81f7b5b614e188c2b8e006b4c5023fff1c169c31f9c6d20354dc01a100a7 |
| SHA512 | aac73a354acccdb44f6855a372da694a35fb5a75c0a452d93a2a5a1cbca064073f72bff9f3b2732188667c3f620856b34546d1e19e402bba6357adc7724dd48a |
C:\Users\Admin\AppData\Local\Temp\BNJxgWdkIKCb.bat
| MD5 | 9b212a9ec3cc29716fd6d65c6fc7ac54 |
| SHA1 | 4344e177692679e9437bf8151a88fc04f2e197df |
| SHA256 | 45c1ea4ca877b059f60b7041c92d929de312e0e2160a55f903338e7b75105d23 |
| SHA512 | 8ea6f2dfb6d1637edf0680b32b8c0066926a45f0e7ad8ed1c110af3b29af55c7573a184eccba5f56815ce0b3ed45efcfe568c48c802f7f90f1984dbd8e548509 |
C:\Users\Admin\AppData\Local\Temp\jbr82g8PyY4s.bat
| MD5 | b5f91028726b46ab45f426968cb98b6c |
| SHA1 | 6825a88eda3fc12f1f45008a96c47c61bbdae3b4 |
| SHA256 | da75a7b594037c8d42ff666ed2116e1db3c07911915b694dbebfb045d2375f38 |
| SHA512 | f1ece1d69a6f77edf91122d784ec21440f55bff9502092e376988e3cbbcb661d305236d992de89fd3175a4ad6e5d2cfed33f16bb0e10337d92c1efca6d3f20a3 |
C:\Users\Admin\AppData\Local\Temp\7BSb3BGgcHRX.bat
| MD5 | 3f41dde0b4f76241e6c4b09ad729c186 |
| SHA1 | 3224e2beda5a76cd0d6e12ffd8196102eb6e02fa |
| SHA256 | 602347b4ccd424cb20b544ccf393b82d9a2c658dc73ef9bbbd890e19005d5edc |
| SHA512 | 1385c5b34f151ea73169c89bd3f02c9e81790643df1252ab139326ecfd28e8934cc4186db98e08d2cc7efbd23bd7f7fca08de362c47a08d141b9d22b99f1c1be |