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Analysis
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max time kernel
150s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
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submitted
09/03/2024, 04:54
General
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Target
2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe
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Size
1.3MB
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MD5
c54566c34316dbefd0d344311b24a766
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SHA1
2bf940e1a7773ba76a55a32be936fa513eeb9b34
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SHA256
aac15814aec66587435c8e2abc6431ba09300e94de72ae94a8b60f6efad0876b
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SHA512
76939f6cf240d31022961d338995567584c067447356dd01f77689e253c5c1e0514038b8bba6b8ef91a4f79357bccb96632e3e5e5b03adb21ee8c6ea60d01e20
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SSDEEP
24576:DwxPanDWDAxfy+t4g6cBLi2iYQOlbBTAIUC:8xPpWTjPJplVTjUC
Malware Config
Signatures
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UAC bypass 3 TTPs 1 IoCs
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Detects executables embedding registry key / value combination indicative of disabling Windows Defender features 17 IoCs
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Sets file execution options in registry 2 TTPs 12 IoCs
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Adds Run key to start application 2 TTPs 1 IoCs
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Checks whether UAC is enabled 1 TTPs 1 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs
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Suspicious use of AdjustPrivilegeToken 2 IoCs
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Suspicious use of WriteProcessMemory 15 IoCs
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System policy modification 1 TTPs 3 IoCs
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Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe"C:\Users\Admin\AppData\Local\Temp\2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe"1⤵
- UAC bypass
- Sets file execution options in registry
- Adds Run key to start application
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /tn "GoogleUpdateTaskMachineUK" /sc MINUTE /mo 1 /tr "C:\Users\Admin\AppData\Local\Temp\2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe" /rl HIGHEST /f2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\schtasks.exeschtasks /create /tn "GoogleUpdateTaskMachineUK" /sc MINUTE /mo 1 /tr "C:\Users\Admin\AppData\Local\Temp\2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe" /rl HIGHEST /f3⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exeC:\Users\Admin\AppData\Local\Temp\2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe explorer.exe1⤵
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C:\Windows\system32\taskeng.exetaskeng.exe {CEB2BFC8-B907-41E6-8D06-E160ACCD5421} S-1-5-21-2297530677-1229052932-2803917579-1000:HKULBIBU\Admin:Interactive:[1]1⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exeC:\Users\Admin\AppData\Local\Temp\2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe2⤵
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C:\Users\Admin\AppData\Local\Temp\2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exeC:\Users\Admin\AppData\Local\Temp\2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe2⤵
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Scheduled Task/Job
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
2Scheduled Task/Job
1Replay Monitor
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Downloads
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Filesize
4KB
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Filesize
1.6MB
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Filesize
1.6MB
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Filesize
1.6MB
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Filesize
1.6MB
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Filesize
4KB
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Filesize
1.6MB
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Filesize
1.6MB
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Filesize
1.6MB
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Filesize
1.6MB
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Filesize
4KB
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Filesize
1.6MB
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Filesize
1.6MB
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Filesize
1.6MB
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Filesize
1.6MB
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Filesize
1.6MB
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Filesize
1.6MB
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Filesize
1.6MB
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Filesize
1.6MB
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Filesize
4KB
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Filesize
4KB
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Filesize
1.6MB