Analysis
- max time kernel
5s - max time network
100s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
24/08/2024, 01:06
General
- Target 2c6ab1efe207f8a2f8528ce232dcd1e2ff0b0dd82c5b460f51457a7bf97f60d9.exe
- Size 2.0MB
- Sample240824-bf8kpsxdng
- SHA256 2c6ab1efe207f8a2f8528ce232dcd1e2ff0b0dd82c5b460f51457a7bf97f60d9
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\2c6ab1efe207f8a2f8528ce232dcd1e2ff0b0dd82c5b460f51457a7bf97f60d9.exe"C:\Users\Admin\AppData\Local\Temp\2c6ab1efe207f8a2f8528ce232dcd1e2ff0b0dd82c5b460f51457a7bf97f60d9.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 4564 -s 5523⤵
- 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\yzFLAhongKrw.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 3344 -s 17604⤵
- Program crash
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C:\Users\Admin\AppData\Local\Temp\2c6ab1efe207f8a2f8528ce232dcd1e2ff0b0dd82c5b460f51457a7bf97f60d9.exe"C:\Users\Admin\AppData\Local\Temp\2c6ab1efe207f8a2f8528ce232dcd1e2ff0b0dd82c5b460f51457a7bf97f60d9.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 420 -p 4564 -ip 45641⤵
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 3344 -ip 33441⤵
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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 3044 -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 484 -p 3044 -ip 30441⤵
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C:\Windows\system32\sihost.exesihost.exe1⤵
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C:\Windows\explorer.exeexplorer.exe /LOADSAVEDWINDOWS2⤵
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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⤵
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C:\Windows\system32\WerFaultSecure.exe"C:\Windows\system32\WerFaultSecure.exe" -protectedcrash -p 2412 -i 2412 -h 472 -j 540 -s 544 -d 01⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
windef.exe.log
vnc.exe
windef.exe
yzFLAhongKrw.bat
08-24-2024
SystemPropertiesPerformance.exe
memory/992-80-0x0000000000400000-0x0000000000420000-memory.dmp
memory/992-74-0x0000000000400000-0x0000000000420000-memory.dmp
memory/3128-32-0x0000000000030000-0x000000000008E000-memory.dmp
memory/3128-35-0x0000000004A40000-0x0000000004AA6000-memory.dmp
memory/3128-36-0x0000000005670000-0x0000000005682000-memory.dmp
memory/3128-37-0x0000000005BB0000-0x0000000005BEC000-memory.dmp
memory/3128-34-0x0000000004990000-0x0000000004A22000-memory.dmp
memory/3128-33-0x0000000004E60000-0x0000000005404000-memory.dmp
memory/3128-29-0x00000000732BE000-0x00000000732BF000-memory.dmp
memory/3344-45-0x0000000006FC0000-0x0000000006FCA000-memory.dmp
memory/4376-19-0x00000000012F0000-0x00000000012F1000-memory.dmp
memory/4668-28-0x0000000000D20000-0x0000000000D40000-memory.dmp
memory/4668-20-0x0000000000D20000-0x0000000000D40000-memory.dmp