General
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Target
http://antivirus
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Sample
241228-2newgatndy
Static task
static1
URLScan task
urlscan1
Behavioral task
behavioral1
Sample
http://antivirus
Resource
win11-20241007-en
Malware Config
Extracted
metasploit
windows/download_exec
http://149.129.72.37:23456/SNpK
- headers User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0; NP09; NP09; MAAU)
Extracted
crimsonrat
185.136.161.124
Targets
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Target
http://antivirus
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CrimsonRAT main payload
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Crimsonrat family
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MetaSploit
Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.
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Metasploit family
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Modifies WinLogon for persistence
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Process spawned unexpected child process
This typically indicates the parent process was compromised via an exploit or macro.
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Suspicious use of NtCreateProcessExOtherParentProcess
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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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Disables RegEdit via registry modification
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Disables Task Manager 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: Image File Execution Options Injection
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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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A potential corporate email address has been identified in the URL: 67C716D751E567F70A490D4C@AdobeOrg
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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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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Modifies system executable filetype association
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Obfuscated with Agile.Net obfuscator
Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.
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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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Drops desktop.ini file(s)
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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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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
5Active Setup
1Registry Run Keys / Startup Folder
3Winlogon Helper DLL
1Event Triggered Execution
4Accessibility Features
1Change Default File Association
1Component Object Model Hijacking
1Image File Execution Options Injection
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Access Token Manipulation
1Create Process with Token
1Boot or Logon Autostart Execution
5Active Setup
1Registry Run Keys / Startup Folder
3Winlogon Helper DLL
1Event Triggered Execution
4Accessibility Features
1Change Default File Association
1Component Object Model Hijacking
1Image File Execution Options Injection
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Access Token Manipulation
1Create Process with Token
1Impair Defenses
3Disable or Modify Tools
2Safe Mode Boot
1Modify Registry
10Pre-OS Boot
1Bootkit
1Subvert Trust Controls
1SIP and Trust Provider Hijacking
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Discovery
Browser Information Discovery
1Peripheral Device Discovery
2Query Registry
8Software Discovery
1Security Software Discovery
1System Information Discovery
8System Location Discovery
1System Language Discovery
1System Network Configuration Discovery
1Internet Connection Discovery
1