General
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Target
https://bonzi.link
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Sample
240721-tws43axdlj
Static task
static1
URLScan task
urlscan1
Behavioral task
behavioral1
Sample
https://bonzi.link
Resource
win11-20240709-en
Malware Config
Targets
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Target
https://bonzi.link
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BadRabbit
Ransomware family discovered in late 2017, mainly targeting Russia and Ukraine.
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Modifies WinLogon for persistence
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Suspicious use of NtCreateUserProcessOtherParentProcess
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RevengeRat Executable
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Blocklisted process makes network request
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Boot or Logon Autostart Execution: Active Setup
Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.
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Downloads MZ/PE file
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Drops file in Drivers directory
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Event Triggered Execution: Image File Execution Options Injection
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Modifies RDP port number used by Windows
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Sets service image path in registry
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Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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Drops startup file
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Event Triggered Execution: Component Object Model Hijacking
Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.
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Executes dropped EXE
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Impair Defenses: Safe Mode Boot
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Loads dropped DLL
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Uses the VBS compiler for execution
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Adds Run key to start application
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Checks for any installed AV software in registry
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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Legitimate hosting services abused for malware hosting/C2
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Writes to the Master Boot Record (MBR)
Bootkits write to the MBR to gain persistence at a level below the operating system.
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Checks system information in the registry
System information is often read in order to detect sandboxing environments.
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Drops file in System32 directory
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Suspicious use of SetThreadContext
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MITRE ATT&CK Matrix ATT&CK v13
Persistence
Boot or Logon Autostart Execution
4Registry Run Keys / Startup Folder
2Winlogon Helper DLL
1Active Setup
1Event Triggered Execution
2Image File Execution Options Injection
1Component Object Model Hijacking
1Pre-OS Boot
1Bootkit
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
4Registry Run Keys / Startup Folder
2Winlogon Helper DLL
1Active Setup
1Event Triggered Execution
2Image File Execution Options Injection
1Component Object Model Hijacking
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Modify Registry
6Hide Artifacts
2Hidden Files and Directories
2Impair Defenses
1Safe Mode Boot
1Scripting
1Pre-OS Boot
1Bootkit
1Subvert Trust Controls
1Install Root Certificate
1