Analysis Overview
SHA256
f75a45087aac828dd3f21760b5af31c5a83c7209a67645d5080c39129ff46488
Threat Level: Known bad
The file Bootstrapper (extract.me).zip was found to be: Known bad.
Malicious Activity Summary
Quasar RAT
Quasar payload
Quasar family
Executes dropped EXE
Enumerates physical storage devices
Unsigned PE
Suspicious use of SetWindowsHookEx
Scheduled Task/Job: Scheduled Task
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Uses Task Scheduler COM API
MITRE ATT&CK
Enterprise Matrix V15
Analysis: static1
Detonation Overview
Reported
2024-08-05 16:09
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
2024-08-05 16:09
Reported
2024-08-05 16:12
Platform
win7-20240729-en
Max time kernel
138s
Max time network
143s
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:\Users\Admin\AppData\Roaming\system32\Bootstrapper.exe | N/A |
Enumerates physical storage devices
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\Bootstrapper.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\system32\Bootstrapper.exe | N/A |
| Token: 33 | N/A | C:\Windows\system32\AUDIODG.EXE | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\AUDIODG.EXE | N/A |
| Token: 33 | N/A | C:\Windows\system32\AUDIODG.EXE | N/A |
| Token: SeIncBasePriorityPrivilege | N/A | C:\Windows\system32\AUDIODG.EXE | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\system32\Bootstrapper.exe | N/A |
Suspicious use of SendNotifyMessage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\system32\Bootstrapper.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\system32\Bootstrapper.exe | N/A |
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\Bootstrapper.exe
"C:\Users\Admin\AppData\Local\Temp\Bootstrapper.exe"
C:\Windows\system32\schtasks.exe
"schtasks" /create /tn "Spotify" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\system32\Bootstrapper.exe" /rl HIGHEST /f
C:\Users\Admin\AppData\Roaming\system32\Bootstrapper.exe
"C:\Users\Admin\AppData\Roaming\system32\Bootstrapper.exe"
C:\Windows\system32\schtasks.exe
"schtasks" /create /tn "Spotify" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\system32\Bootstrapper.exe" /rl HIGHEST /f
C:\Windows\explorer.exe
"C:\Windows\explorer.exe"
C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x5e4
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | wefdwef-34180.portmap.host | udp |
| DE | 193.161.193.99:34180 | wefdwef-34180.portmap.host | tcp |
| DE | 193.161.193.99:34180 | wefdwef-34180.portmap.host | tcp |
| DE | 193.161.193.99:34180 | wefdwef-34180.portmap.host | tcp |
| DE | 193.161.193.99:34180 | wefdwef-34180.portmap.host | tcp |
| DE | 193.161.193.99:34180 | wefdwef-34180.portmap.host | tcp |
| DE | 193.161.193.99:34180 | wefdwef-34180.portmap.host | tcp |
| DE | 193.161.193.99:34180 | wefdwef-34180.portmap.host | tcp |
| DE | 193.161.193.99:34180 | wefdwef-34180.portmap.host | tcp |
| DE | 193.161.193.99:34180 | wefdwef-34180.portmap.host | tcp |
| DE | 193.161.193.99:34180 | wefdwef-34180.portmap.host | tcp |
| DE | 193.161.193.99:34180 | wefdwef-34180.portmap.host | tcp |
| DE | 193.161.193.99:34180 | wefdwef-34180.portmap.host | tcp |
| DE | 193.161.193.99:34180 | wefdwef-34180.portmap.host | tcp |
| DE | 193.161.193.99:34180 | wefdwef-34180.portmap.host | tcp |
| DE | 193.161.193.99:34180 | wefdwef-34180.portmap.host | tcp |
| DE | 193.161.193.99:34180 | wefdwef-34180.portmap.host | tcp |
| DE | 193.161.193.99:34180 | wefdwef-34180.portmap.host | tcp |
Files
memory/408-0-0x000007FEF6513000-0x000007FEF6514000-memory.dmp
memory/408-1-0x0000000000890000-0x0000000000BB4000-memory.dmp
memory/408-2-0x000007FEF6510000-0x000007FEF6EFC000-memory.dmp
C:\Users\Admin\AppData\Roaming\system32\Bootstrapper.exe
| MD5 | 14b871855a9046ef9aedeec80f9c2d86 |
| SHA1 | 32c0ad34f524748b76c090fc881b75b928341e7e |
| SHA256 | b14b916cd2f188ea09035489056e0bff9f8cb8e4a30eff50172f86319fabc940 |
| SHA512 | 7ada8280b9a5a4dcb427da5f7634335c191645614148ed550dbbbacfaed72e1e99202caedddc02f48dc73d96bf0ecd4d35c2ed2d6206e9b25efba4f29dcc8e96 |
memory/2776-9-0x00000000010D0000-0x00000000013F4000-memory.dmp
memory/2776-8-0x000007FEF6510000-0x000007FEF6EFC000-memory.dmp
memory/408-7-0x000007FEF6510000-0x000007FEF6EFC000-memory.dmp
memory/2776-10-0x000007FEF6510000-0x000007FEF6EFC000-memory.dmp
memory/2776-11-0x000007FEF6510000-0x000007FEF6EFC000-memory.dmp
Analysis: behavioral2
Detonation Overview
Submitted
2024-08-05 16:09
Reported
2024-08-05 16:10
Platform
win10v2004-20240802-en
Max time kernel
32s
Max time network
33s
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\system32\Bootstrapper.exe | N/A |
Enumerates physical storage devices
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\Bootstrapper.exe | N/A |
| Token: SeDebugPrivilege | N/A | C:\Users\Admin\AppData\Roaming\system32\Bootstrapper.exe | N/A |
Suspicious use of FindShellTrayWindow
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\system32\Bootstrapper.exe | N/A |
Suspicious use of SendNotifyMessage
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\system32\Bootstrapper.exe | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Users\Admin\AppData\Roaming\system32\Bootstrapper.exe | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1736 wrote to memory of 3364 | N/A | C:\Users\Admin\AppData\Local\Temp\Bootstrapper.exe | C:\Windows\SYSTEM32\schtasks.exe |
| PID 1736 wrote to memory of 3364 | N/A | C:\Users\Admin\AppData\Local\Temp\Bootstrapper.exe | C:\Windows\SYSTEM32\schtasks.exe |
| PID 1736 wrote to memory of 4696 | N/A | C:\Users\Admin\AppData\Local\Temp\Bootstrapper.exe | C:\Users\Admin\AppData\Roaming\system32\Bootstrapper.exe |
| PID 1736 wrote to memory of 4696 | N/A | C:\Users\Admin\AppData\Local\Temp\Bootstrapper.exe | C:\Users\Admin\AppData\Roaming\system32\Bootstrapper.exe |
| PID 4696 wrote to memory of 3220 | N/A | C:\Users\Admin\AppData\Roaming\system32\Bootstrapper.exe | C:\Windows\SYSTEM32\schtasks.exe |
| PID 4696 wrote to memory of 3220 | N/A | C:\Users\Admin\AppData\Roaming\system32\Bootstrapper.exe | C:\Windows\SYSTEM32\schtasks.exe |
Uses Task Scheduler COM API
Processes
C:\Users\Admin\AppData\Local\Temp\Bootstrapper.exe
"C:\Users\Admin\AppData\Local\Temp\Bootstrapper.exe"
C:\Windows\SYSTEM32\schtasks.exe
"schtasks" /create /tn "Spotify" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\system32\Bootstrapper.exe" /rl HIGHEST /f
C:\Users\Admin\AppData\Roaming\system32\Bootstrapper.exe
"C:\Users\Admin\AppData\Roaming\system32\Bootstrapper.exe"
C:\Windows\SYSTEM32\schtasks.exe
"schtasks" /create /tn "Spotify" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\system32\Bootstrapper.exe" /rl HIGHEST /f
C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
Network
| Country | Destination | Domain | Proto |
| US | 8.8.8.8:53 | g.bing.com | udp |
| US | 204.79.197.237:443 | g.bing.com | tcp |
| US | 8.8.8.8:53 | 8.8.8.8.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 76.32.126.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 0.205.248.87.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 237.197.79.204.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 26.35.223.20.in-addr.arpa | udp |
| US | 8.8.8.8:53 | wefdwef-34180.portmap.host | udp |
| DE | 193.161.193.99:34180 | wefdwef-34180.portmap.host | tcp |
| DE | 193.161.193.99:34180 | wefdwef-34180.portmap.host | tcp |
| DE | 193.161.193.99:34180 | wefdwef-34180.portmap.host | tcp |
| US | 8.8.8.8:53 | 103.169.127.40.in-addr.arpa | udp |
| US | 8.8.8.8:53 | 198.187.3.20.in-addr.arpa | udp |
Files
memory/1736-1-0x0000000000CE0000-0x0000000001004000-memory.dmp
memory/1736-0-0x00007FFA9F433000-0x00007FFA9F435000-memory.dmp
memory/1736-2-0x00007FFA9F430000-0x00007FFA9FEF1000-memory.dmp
C:\Users\Admin\AppData\Roaming\system32\Bootstrapper.exe
| MD5 | 14b871855a9046ef9aedeec80f9c2d86 |
| SHA1 | 32c0ad34f524748b76c090fc881b75b928341e7e |
| SHA256 | b14b916cd2f188ea09035489056e0bff9f8cb8e4a30eff50172f86319fabc940 |
| SHA512 | 7ada8280b9a5a4dcb427da5f7634335c191645614148ed550dbbbacfaed72e1e99202caedddc02f48dc73d96bf0ecd4d35c2ed2d6206e9b25efba4f29dcc8e96 |
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\Bootstrapper.exe.log
| MD5 | baf55b95da4a601229647f25dad12878 |
| SHA1 | abc16954ebfd213733c4493fc1910164d825cac8 |
| SHA256 | ee954c5d8156fd8890e582c716e5758ed9b33721258f10e758bdc31ccbcb1924 |
| SHA512 | 24f502fedb1a305d0d7b08857ffc1db9b2359ff34e06d5748ecc84e35c985f29a20d9f0a533bea32d234ab37097ec0481620c63b14ac89b280e75e14d19fd545 |
memory/4696-9-0x00007FFA9F430000-0x00007FFA9FEF1000-memory.dmp
memory/1736-10-0x00007FFA9F430000-0x00007FFA9FEF1000-memory.dmp
memory/4696-11-0x00007FFA9F430000-0x00007FFA9FEF1000-memory.dmp
memory/4696-12-0x000000001CB00000-0x000000001CB50000-memory.dmp
memory/4696-13-0x000000001CC10000-0x000000001CCC2000-memory.dmp
memory/4696-14-0x00007FFA9F430000-0x00007FFA9FEF1000-memory.dmp