Analysis
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max time kernel
50s -
max time network
52s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
17-03-2024 01:08
Behavioral task
behavioral1
Sample
7ev3n.exe
Resource
win7-20240221-en
windows7-x64
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
7ev3n.exe
Resource
win10v2004-20240226-en
windows10-2004-x64
9 signatures
150 seconds
Behavioral task
behavioral3
Sample
Annabelle.exe
Resource
win7-20240221-en
windows7-x64
17 signatures
150 seconds
Behavioral task
behavioral4
Sample
Annabelle.exe
Resource
win10v2004-20240226-en
windows10-2004-x64
20 signatures
150 seconds
Behavioral task
behavioral5
Sample
BadRabbit.exe
Resource
win7-20240221-en
windows7-x64
9 signatures
150 seconds
Behavioral task
behavioral6
Sample
BadRabbit.exe
Resource
win10v2004-20240226-en
windows10-2004-x64
10 signatures
150 seconds
Behavioral task
behavioral7
Sample
Birele.exe
Resource
win10v2004-20240226-en
windows10-2004-x64
6 signatures
150 seconds
Errors
Reason
Machine shutdown
General
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Target
Annabelle.exe
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Size
15.9MB
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MD5
0f743287c9911b4b1c726c7c7edcaf7d
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SHA1
9760579e73095455fcbaddfe1e7e98a2bb28bfe0
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SHA256
716335ba5cd1e7186c40295b199190e2b6655e48f1c1cbe12139ba67faa5e1ac
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SHA512
2a6dd6288303700ef9cb06ae1efeb1e121c89c97708e5ecd15ed9b2a35d0ecff03d8da58b30daeadad89bd38dc4649521ada149fb457408e5a2bdf1512f88677
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SSDEEP
393216:UMwm0qBknxdEX+LbMUgoSZmWSmh4aaRN22ChHCMNku1y:UMcKX+Lbjgd7W1RNVC9ku1
Score
10/10
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Annabelle.exe" Annabelle.exe -
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection Annabelle.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1" Annabelle.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" Annabelle.exe -
Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Disables RegEdit via registry modification 2 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" Annabelle.exe Set value (int) \REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" Annabelle.exe -
Disables Task Manager via registry modification
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Disables use of System Restore points 1 TTPs
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Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 2104 NetSh.exe -
Sets file execution options in registry 2 TTPs 64 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rundll32.exe\Debugger = "RIP" Annabelle.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\chkdsk.exe\Debugger = "RIP" Annabelle.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mydocs.dll\Debugger = "RIP" Annabelle.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\usbui.dll Annabelle.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Autoruns64.exe\Debugger = "RIP" Annabelle.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\UserAccountControlSettings.exe\Debugger = "RIP" Annabelle.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Autoruns.exe Annabelle.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\systemexplorer.exe Annabelle.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\systemexplorer.exe\Debugger = "RIP" Annabelle.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\notepad++.exe\Debugger = "RIP" Annabelle.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\yandex.exe Annabelle.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mspaint.exe\Debugger = "RIP" Annabelle.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rundll32.exe Annabelle.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\chkdsk.exe Annabelle.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\recoverydrive.exe\Debugger = "RIP" Annabelle.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mmc.exe Annabelle.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\cabinet.dll Annabelle.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rasman.dll\Debugger = "RIP" Annabelle.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\msconfig.exe Annabelle.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\firefox.exe\Debugger = "RIP" Annabelle.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\microsoftedgecp.exe\Debugger = "RIP" Annabelle.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Autoruns.exe\Debugger = "RIP" Annabelle.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\bcdedit.exe Annabelle.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\cmd.exe Annabelle.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\UserAccountControlSettings.exe Annabelle.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\yandex.exe\Debugger = "RIP" Annabelle.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\sethc.exe\Debugger = "RIP" Annabelle.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\secpol.msc Annabelle.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\url.dll Annabelle.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\logoff.exe\Debugger = "RIP" Annabelle.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\gpedit.msc Annabelle.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\DCIMAN32.exe Annabelle.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\DCIMAN32.exe\Debugger = "RIP" Annabelle.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ksuser.dll\Debugger = "RIP" Annabelle.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\logoff.exe Annabelle.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\opera.exe Annabelle.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\firefox.exe Annabelle.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\opera.exe\Debugger = "RIP" Annabelle.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\iexplore.exe\Debugger = "RIP" Annabelle.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\MSASCuiL.exe\Debugger = "RIP" Annabelle.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rundll.exe Annabelle.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mydocs.dll Annabelle.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\secpol.msc\Debugger = "RIP" Annabelle.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\taskmgr.exe Annabelle.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\taskkill.exe\Debugger = "RIP" Annabelle.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mspaint.exe Annabelle.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\usbui.dll\Debugger = "RIP" Annabelle.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\control.exe Annabelle.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\control.exe\Debugger = "RIP" Annabelle.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\chrome.exe\Debugger = "RIP" Annabelle.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\notepad.exe Annabelle.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\notepad.exe\Debugger = "RIP" Annabelle.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\MSASCuiL.exe Annabelle.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\powershell.exe Annabelle.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\attrib.exe Annabelle.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\dllhost.exe Annabelle.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\DBGHELP.exe Annabelle.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\microsoftedge.exe\Debugger = "RIP" Annabelle.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\mpg4dmod.dll Annabelle.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\chrome.exe Annabelle.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\microsoftedge.exe Annabelle.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\gpedit.msc\Debugger = "RIP" Annabelle.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\rundll.exe\Debugger = "RIP" Annabelle.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\DBGHELP.exe\Debugger = "RIP" Annabelle.exe -
Adds Run key to start application 2 TTPs 3 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-406356229-2805545415-1236085040-1000\Software\Microsoft\Windows\CurrentVersion\Run\UpdateBackup = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Annabelle.exe" Annabelle.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\UpdateBackup = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Annabelle.exe" Annabelle.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\UpdateBackup = "C:\\Users\\Admin\\AppData\\Local\\Temp\\Annabelle.exe" Annabelle.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" Annabelle.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Interacts with shadow copies 2 TTPs 3 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
pid Process 1916 vssadmin.exe 2932 vssadmin.exe 2184 vssadmin.exe -
Suspicious use of AdjustPrivilegeToken 5 IoCs
description pid Process Token: SeBackupPrivilege 2716 vssvc.exe Token: SeRestorePrivilege 2716 vssvc.exe Token: SeAuditPrivilege 2716 vssvc.exe Token: SeShutdownPrivilege 2192 shutdown.exe Token: SeRemoteShutdownPrivilege 2192 shutdown.exe -
Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 2256 wrote to memory of 1916 2256 Annabelle.exe 28 PID 2256 wrote to memory of 1916 2256 Annabelle.exe 28 PID 2256 wrote to memory of 1916 2256 Annabelle.exe 28 PID 2256 wrote to memory of 2932 2256 Annabelle.exe 30 PID 2256 wrote to memory of 2932 2256 Annabelle.exe 30 PID 2256 wrote to memory of 2932 2256 Annabelle.exe 30 PID 2256 wrote to memory of 2184 2256 Annabelle.exe 31 PID 2256 wrote to memory of 2184 2256 Annabelle.exe 31 PID 2256 wrote to memory of 2184 2256 Annabelle.exe 31 PID 2256 wrote to memory of 2104 2256 Annabelle.exe 33 PID 2256 wrote to memory of 2104 2256 Annabelle.exe 33 PID 2256 wrote to memory of 2104 2256 Annabelle.exe 33 PID 2256 wrote to memory of 2192 2256 Annabelle.exe 38 PID 2256 wrote to memory of 2192 2256 Annabelle.exe 38 PID 2256 wrote to memory of 2192 2256 Annabelle.exe 38 -
System policy modification 1 TTPs 9 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System Annabelle.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\WindowsDefenderMAJ = "1" Annabelle.exe Key created \REGISTRY\MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\System Annabelle.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" Annabelle.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoControlPanel = "1" Annabelle.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" Annabelle.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableTaskMgr = "1" Annabelle.exe Key created \REGISTRY\MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer Annabelle.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\NoRun = "1" Annabelle.exe -
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\Annabelle.exe"C:\Users\Admin\AppData\Local\Temp\Annabelle.exe"1⤵
- Modifies WinLogon for persistence
- Modifies Windows Defender Real-time Protection settings
- UAC bypass
- Disables RegEdit via registry modification
- Sets file execution options in registry
- Adds Run key to start application
- Checks whether UAC is enabled
- Suspicious use of WriteProcessMemory
- System policy modification
PID:2256 -
C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet2⤵
- Interacts with shadow copies
PID:1916
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C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet2⤵
- Interacts with shadow copies
PID:2932
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C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet2⤵
- Interacts with shadow copies
PID:2184
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C:\Windows\system32\NetSh.exeNetSh Advfirewall set allprofiles state off2⤵
- Modifies Windows Firewall
PID:2104
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C:\Windows\System32\shutdown.exe"C:\Windows\System32\shutdown.exe" -r -t 00 -f2⤵
- Suspicious use of AdjustPrivilegeToken
PID:2192
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2716
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C:\Windows\system32\LogonUI.exe"LogonUI.exe" /flags:0x01⤵PID:1148
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C:\Windows\system32\LogonUI.exe"LogonUI.exe" /flags:0x11⤵PID:1132
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
3Registry Run Keys / Startup Folder
2Winlogon Helper DLL
1Create or Modify System Process
2Windows Service
2Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
3Registry Run Keys / Startup Folder
2Winlogon Helper DLL
1Create or Modify System Process
2Windows Service
2