General
-
Target
https://gofile.io/d/Ioc7Rs
-
Sample
241209-s8prqsxnhk
Static task
static1
URLScan task
urlscan1
Behavioral task
behavioral1
Sample
https://gofile.io/d/Ioc7Rs
Resource
win10v2004-20241007-en
Malware Config
Extracted
crimsonrat
185.136.161.124
Targets
-
-
Target
https://gofile.io/d/Ioc7Rs
-
CrimsonRAT main payload
-
Crimsonrat family
-
Dharma
Dharma is a ransomware that uses security software installation to hide malicious activities.
-
Dharma family
-
Revengerat family
-
Deletes shadow copies
Ransomware often targets backup files to inhibit system recovery.
-
Renames multiple (559) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
-
RevengeRat Executable
-
Downloads MZ/PE file
-
Office macro that triggers on suspicious action
Office document macro which triggers in special circumstances - often malicious.
-
A potential corporate email address has been identified in the URL: abby509_640.gif@webp
-
Checks computer location settings
Looks up country code configured in the registry, likely geofence.
-
Credentials from Password Stores: Windows Credential Manager
Suspicious access to Credentials History.
-
Drops startup file
-
Executes dropped EXE
-
Loads dropped DLL
-
Uses the VBS compiler for execution
-
Adds Run key to start application
-
Drops desktop.ini file(s)
-
Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
-
Legitimate hosting services abused for malware hosting/C2
-
Drops file in System32 directory
-
Suspicious use of SetThreadContext
-
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1Scheduled Task/Job
1Scheduled Task
1Windows Management Instrumentation
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Direct Volume Access
1Indicator Removal
2File Deletion
2Modify Registry
1Subvert Trust Controls
1SIP and Trust Provider Hijacking
1Credential Access
Credentials from Password Stores
2Credentials from Web Browsers
1Windows Credential Manager
1Unsecured Credentials
1Credentials In Files
1