General
-
Target
https://github.com/Da2dalus/The-MALWARE-Repo/blob/master/Ransomware/7ev3n.exe
-
Sample
240507-tnt2dseb4v
Static task
static1
URLScan task
urlscan1
Behavioral task
behavioral1
Sample
https://github.com/Da2dalus/The-MALWARE-Repo/blob/master/Ransomware/7ev3n.exe
Resource
win10-20240404-en
Behavioral task
behavioral2
Sample
https://github.com/Da2dalus/The-MALWARE-Repo/blob/master/Ransomware/7ev3n.exe
Resource
win10v2004-20240419-en
Behavioral task
behavioral3
Sample
https://github.com/Da2dalus/The-MALWARE-Repo/blob/master/Ransomware/7ev3n.exe
Resource
win11-20240419-en
Malware Config
Targets
-
-
Target
https://github.com/Da2dalus/The-MALWARE-Repo/blob/master/Ransomware/7ev3n.exe
-
Dharma
Dharma is a ransomware that uses security software installation to hide malicious activities.
-
Modifies WinLogon for persistence
-
Deletes shadow copies
Ransomware often targets backup files to inhibit system recovery.
-
Renames multiple (552) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
-
Disables RegEdit via registry modification
-
Disables Task Manager via registry modification
-
Disables use of System Restore points
-
Downloads MZ/PE file
-
Modifies Windows Firewall
-
Sets file execution options in registry
-
Drops startup file
-
Executes dropped EXE
-
Loads dropped DLL
-
Adds Run key to start application
-
Drops desktop.ini file(s)
-
Legitimate hosting services abused for malware hosting/C2
-
Writes to the Master Boot Record (MBR)
Bootkits write to the MBR to gain persistence at a level below the operating system.
-
Drops file in System32 directory
-
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
3Registry Run Keys / Startup Folder
2Winlogon Helper DLL
1Create or Modify System Process
2Windows Service
2Pre-OS Boot
1Bootkit
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
3Registry Run Keys / Startup Folder
2Winlogon Helper DLL
1Create or Modify System Process
2Windows Service
2Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Impair Defenses
3Disable or Modify System Firewall
1Disable or Modify Tools
2Indicator Removal
2File Deletion
2Modify Registry
7Pre-OS Boot
1Bootkit
1