General
- Target http://memz.com
- Sample260810-hdw78acp7x
Static task
static1
URLScan task
urlscan1
Behavioral task
behavioral1
Sample
http://memz.com
Resource
win10v2004-20260513-en
Malware Config
Extracted
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crimsonrat
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185.136.161.124
Targets
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- Target http://memz.com
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CrimsonRAT main payload
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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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Event Triggered Execution: Image File Execution Options Injection
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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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Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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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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Loads dropped DLL
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Unsecured Credentials: Credentials In Files
Steal credentials from unsecured files.
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Adds Run key to start application
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Badlisted process makes network request
Network request originating from process or tool commonly abused by malware.
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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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Checks whether UAC is enabled
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Contacts third-party web service commonly abused for C2
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
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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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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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Drops file in System32 directory
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
3Active Setup
1Registry Run Keys / Startup Folder
2Event Triggered Execution
2Component Object Model Hijacking
1Image File Execution Options Injection
1Pre-OS Boot
1Bootkit
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
3Active Setup
1Registry Run Keys / Startup Folder
2Event Triggered Execution
2Component Object Model Hijacking
1Image File Execution Options Injection
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Modify Registry
5Pre-OS Boot
1Bootkit
1Subvert Trust Controls
1Install Root Certificate
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
3Credentials In Files
3Discovery
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
1System Time Discovery
1