Analysis
- max time kernel
5s - max time network
142s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
15/08/2024, 02:20
General
- Target a888dcb3da5dd6fbdc2d51187975ec62696938d9a2e84f0b927e5840a522cc0b.exe
- Size 2.0MB
- Sample240815-csrcmavdkq
- SHA256 a888dcb3da5dd6fbdc2d51187975ec62696938d9a2e84f0b927e5840a522cc0b
Malware Config
Extracted
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azorult
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http://0x21.in:8000/_az/
Extracted
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quasar
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1.3.0.0
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EbayProfiles
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5.8.88.191:443
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sockartek.icu:443
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QSR_MUTEX_0kBRNrRz5TDLEQouI0
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encryption_key
MWhG6wsClMX8aJM2CVXT
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install_name
winsock.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
win defender run
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subdirectory
SubDir
Signatures
- Azorult
An information stealer that was first discovered in 2016, targeting browsing history and passwords.
- Quasar RAT
Quasar is an open source Remote Access Tool.
- Quasar payload 3 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 3 IoCs
- Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- AutoIT Executable 1 IoCs
AutoIT scripts compiled to PE executables.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Program crash 3 IoCs
- System Location Discovery: System Language Discovery 1 TTPs 8 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs
Adversaries may check for Internet connectivity on compromised systems.
- Runs ping.exe 1 TTPs 1 IoCs
- Scheduled Task/Job: Scheduled Task 1 TTPs 5 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 26 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\a888dcb3da5dd6fbdc2d51187975ec62696938d9a2e84f0b927e5840a522cc0b.exe"C:\Users\Admin\AppData\Local\Temp\a888dcb3da5dd6fbdc2d51187975ec62696938d9a2e84f0b927e5840a522cc0b.exe"1⤵
- Checks computer location settings
- Enumerates connected drives
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\vnc.exe"C:\Users\Admin\AppData\Local\Temp\vnc.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k3⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3984 -s 5483⤵
- Program crash
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C:\Users\Admin\AppData\Local\Temp\windef.exe"C:\Users\Admin\AppData\Local\Temp\windef.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"schtasks" /create /tn "win defender run" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\windef.exe" /rl HIGHEST /f3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
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C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"schtasks" /create /tn "win defender run" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe" /rl HIGHEST /f4⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\9kfq0615SnBy.bat" "4⤵
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C:\Windows\SysWOW64\chcp.comchcp 650015⤵
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C:\Windows\SysWOW64\PING.EXEping -n 10 localhost5⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
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C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"5⤵
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C:\Windows\SysWOW64\schtasks.exe"schtasks" /create /tn "win defender run" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe" /rl HIGHEST /f6⤵
- Scheduled Task/Job: Scheduled Task
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2272 -s 22204⤵
- Program crash
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C:\Users\Admin\AppData\Local\Temp\a888dcb3da5dd6fbdc2d51187975ec62696938d9a2e84f0b927e5840a522cc0b.exe"C:\Users\Admin\AppData\Local\Temp\a888dcb3da5dd6fbdc2d51187975ec62696938d9a2e84f0b927e5840a522cc0b.exe"2⤵
- System Location Discovery: System Language Discovery
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\SysWOW64\schtasks.exe" /create /tn RtkAudioService64 /tr "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe" /sc minute /mo 1 /F2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3984 -ip 39841⤵
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C:\Users\Admin\btpanui\SystemPropertiesPerformance.exeC:\Users\Admin\btpanui\SystemPropertiesPerformance.exe1⤵
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C:\Users\Admin\AppData\Local\Temp\vnc.exe"C:\Users\Admin\AppData\Local\Temp\vnc.exe"2⤵
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k3⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4660 -s 5203⤵
- Program crash
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C:\Users\Admin\AppData\Local\Temp\windef.exe"C:\Users\Admin\AppData\Local\Temp\windef.exe"2⤵
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C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"2⤵
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\SysWOW64\schtasks.exe" /create /tn RtkAudioService64 /tr "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe" /sc minute /mo 1 /F2⤵
- Scheduled Task/Job: Scheduled Task
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 4660 -ip 46601⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 2272 -ip 22721⤵
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C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe"C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service1⤵
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C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe"C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeClickToRun.exe" /service1⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
windef.exe.log
9kfq0615SnBy.bat
vnc.exe
windef.exe
08-15-2024
SystemPropertiesPerformance.exe
memory/2272-45-0x0000000006580000-0x000000000658A000-memory.dmp
memory/3632-34-0x0000000005150000-0x00000000051E2000-memory.dmp
memory/3632-33-0x0000000005700000-0x0000000005CA4000-memory.dmp
memory/3632-35-0x00000000050C0000-0x0000000005126000-memory.dmp
memory/3632-36-0x0000000005DD0000-0x0000000005DE2000-memory.dmp
memory/3632-37-0x0000000006310000-0x000000000634C000-memory.dmp
memory/3632-30-0x0000000000770000-0x00000000007CE000-memory.dmp
memory/3632-20-0x000000007309E000-0x000000007309F000-memory.dmp
memory/3940-19-0x0000000004120000-0x0000000004121000-memory.dmp
memory/4124-29-0x0000000000400000-0x0000000000420000-memory.dmp
memory/4124-21-0x0000000000400000-0x0000000000420000-memory.dmp