Resubmissions
20-11-2024 07:25
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241102-jpyqvs1drm 3General
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Target
Bootstrapper.exe
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Size
800KB
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Sample
241102-kxfexssqem
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MD5
2a4dcf20b82896be94eb538260c5fb93
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SHA1
21f232c2fd8132f8677e53258562ad98b455e679
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SHA256
ebbcb489171abfcfce56554dbaeacd22a15838391cbc7c756db02995129def5a
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SHA512
4f1164b2312fb94b7030d6eb6aa9f3502912ffa33505f156443570fc964bfd3bb21ded3cf84092054e07346d2dce83a0907ba33f4ba39ad3fe7a78e836efe288
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SSDEEP
12288:t0zVvgDNMoWjTmFzAzBocaKjyWtiR1pptHxQ0z:O5vgHWjTwAlocaKjyyItHDz
Static task
static1
Behavioral task
behavioral1
Sample
Bootstrapper.exe
Resource
win11-20241007-en
Malware Config
Targets
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Target
Bootstrapper.exe
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Size
800KB
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MD5
2a4dcf20b82896be94eb538260c5fb93
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SHA1
21f232c2fd8132f8677e53258562ad98b455e679
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SHA256
ebbcb489171abfcfce56554dbaeacd22a15838391cbc7c756db02995129def5a
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SHA512
4f1164b2312fb94b7030d6eb6aa9f3502912ffa33505f156443570fc964bfd3bb21ded3cf84092054e07346d2dce83a0907ba33f4ba39ad3fe7a78e836efe288
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SSDEEP
12288:t0zVvgDNMoWjTmFzAzBocaKjyWtiR1pptHxQ0z:O5vgHWjTwAlocaKjyyItHDz
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Modifies WinLogon for persistence
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Modifies firewall policy service
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Suspicious use of NtCreateProcessExOtherParentProcess
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Disables RegEdit via registry modification
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Disables Task Manager via registry modification
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Disables cmd.exe use via registry modification
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Downloads MZ/PE file
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Drops file in Drivers directory
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Event Triggered Execution: AppInit DLLs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
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Event Triggered Execution: Image File Execution Options Injection
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Looks for Xen service registry key.
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Server Software Component: Terminal Services DLL
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Sets service image path in registry
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Uses Session Manager for persistence
Creates Session Manager registry key to run executable early in system boot.
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Credentials from Password Stores: Windows Credential Manager
Suspicious access to Credentials History.
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Deletes itself
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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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Loads dropped DLL
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Modifies system executable filetype association
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Unexpected DNS network traffic destination
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
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Adds Run key to start application
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Blocklisted process makes network request
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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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Maps connected drives based on registry
Disk information is often read in order to detect sandboxing environments.
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Modifies WinLogon
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Boot or Logon Autostart Execution: Authentication Package
Suspicious Windows Authentication Registry Modification.
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Drops autorun.inf file
Malware can abuse Windows Autorun to spread further via attached volumes.
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Drops file in System32 directory
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
6Authentication Package
1Registry Run Keys / Startup Folder
3Winlogon Helper DLL
2Create or Modify System Process
1Windows Service
1Event Triggered Execution
4AppInit DLLs
1Change Default File Association
1Component Object Model Hijacking
1Image File Execution Options Injection
1Server Software Component
1Terminal Services DLL
1Privilege Escalation
Boot or Logon Autostart Execution
6Authentication Package
1Registry Run Keys / Startup Folder
3Winlogon Helper DLL
2Create or Modify System Process
1Windows Service
1Event Triggered Execution
4AppInit DLLs
1Change Default File Association
1Component Object Model Hijacking
1Image File Execution Options Injection
1Defense Evasion
Impair Defenses
3Disable or Modify System Firewall
1Disable or Modify Tools
2Indicator Removal
1Clear Persistence
1Modify Registry
13Subvert Trust Controls
2Install Root Certificate
1SIP and Trust Provider Hijacking
1Virtualization/Sandbox Evasion
1Credential Access
Credentials from Password Stores
2Credentials from Web Browsers
1Windows Credential Manager
1Unsecured Credentials
1Credentials In Files
1Discovery
Browser Information Discovery
1Peripheral Device Discovery
3Query Registry
6Software Discovery
1Security Software Discovery
1System Information Discovery
7System Location Discovery
1System Language Discovery
1Virtualization/Sandbox Evasion
1