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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
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
09/03/2024, 04:54
Static task
static1
Behavioral task
behavioral1
Sample
2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe
Resource
win10v2004-20240226-en
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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description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe -
Detects executables embedding registry key / value combination indicative of disabling Windows Defender features 17 IoCs
resource yara_rule behavioral1/memory/2896-12-0x0000000000400000-0x0000000000593000-memory.dmp INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender behavioral1/memory/2224-23-0x0000000000400000-0x0000000000593000-memory.dmp INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender behavioral1/memory/2224-42-0x0000000000400000-0x0000000000593000-memory.dmp INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender behavioral1/memory/2224-68-0x0000000000400000-0x0000000000593000-memory.dmp INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender behavioral1/memory/2224-87-0x0000000000400000-0x0000000000593000-memory.dmp INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender behavioral1/memory/1952-99-0x0000000000400000-0x0000000000593000-memory.dmp INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender behavioral1/memory/2224-108-0x0000000000400000-0x0000000000593000-memory.dmp INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender behavioral1/memory/2224-133-0x0000000000400000-0x0000000000593000-memory.dmp INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender behavioral1/memory/2224-152-0x0000000000400000-0x0000000000593000-memory.dmp INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender behavioral1/memory/2224-171-0x0000000000400000-0x0000000000593000-memory.dmp INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender behavioral1/memory/2224-190-0x0000000000400000-0x0000000000593000-memory.dmp INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender behavioral1/memory/2224-215-0x0000000000400000-0x0000000000593000-memory.dmp INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender behavioral1/memory/2408-225-0x0000000000400000-0x0000000000593000-memory.dmp INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender behavioral1/memory/2224-234-0x0000000000400000-0x0000000000593000-memory.dmp INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender behavioral1/memory/2224-259-0x0000000000400000-0x0000000000593000-memory.dmp INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender behavioral1/memory/2224-278-0x0000000000400000-0x0000000000593000-memory.dmp INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender behavioral1/memory/2224-297-0x0000000000400000-0x0000000000593000-memory.dmp INDICATOR_SUSPICIOUS_EXE_RegKeyComb_DisableWinDefender -
Sets file execution options in registry 2 TTPs 12 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\Debugger = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe" 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\taskmgr.exe 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\utilman.exe 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\regedit.exe\Debugger = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe" 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\reg.exe 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\taskmgr.exe\Debugger = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe" 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\utilman.exe\Debugger = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe" 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\regedit.exe 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\reg.exe\Debugger = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe" 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\cmd.exe 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\cmd.exe\Debugger = "\"cmd.exe\",\"C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe\"" 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\Qwe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe" 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe -
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.
pid Process 2096 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeBackupPrivilege 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe Token: SeRestorePrivilege 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe -
Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 2224 wrote to memory of 2140 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 28 PID 2224 wrote to memory of 2140 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 28 PID 2224 wrote to memory of 2140 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 28 PID 2224 wrote to memory of 2140 2224 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe 28 PID 2140 wrote to memory of 2096 2140 cmd.exe 30 PID 2140 wrote to memory of 2096 2140 cmd.exe 30 PID 2140 wrote to memory of 2096 2140 cmd.exe 30 PID 2700 wrote to memory of 1952 2700 taskeng.exe 33 PID 2700 wrote to memory of 1952 2700 taskeng.exe 33 PID 2700 wrote to memory of 1952 2700 taskeng.exe 33 PID 2700 wrote to memory of 1952 2700 taskeng.exe 33 PID 2700 wrote to memory of 2408 2700 taskeng.exe 36 PID 2700 wrote to memory of 2408 2700 taskeng.exe 36 PID 2700 wrote to memory of 2408 2700 taskeng.exe 36 PID 2700 wrote to memory of 2408 2700 taskeng.exe 36 -
System policy modification 1 TTPs 3 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\HideFastUserSwitching = "1" 2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe -
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
PID:2224 -
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
PID:2140 -
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)
PID:2096
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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⤵PID:2896
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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
PID:2700 -
C:\Users\Admin\AppData\Local\Temp\2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exeC:\Users\Admin\AppData\Local\Temp\2024-03-09_c54566c34316dbefd0d344311b24a766_ransomlock.exe2⤵PID:1952
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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⤵PID:2408
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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
1