General
-
Target
https://files.sberdisk.ru/s/P3DeBi6dum3WFh1
-
Sample
231118-w6jdqafc82
Static task
static1
URLScan task
urlscan1
Behavioral task
behavioral1
Sample
https://files.sberdisk.ru/s/P3DeBi6dum3WFh1
Resource
win10-20231020-en
Malware Config
Extracted
Protocol: ftp- Host:
valvulasthermovalve.cl - Port:
21 - Username:
[email protected] - Password:
LILKOOLL14!!
Extracted
marsstealer
Default
Targets
-
-
Target
https://files.sberdisk.ru/s/P3DeBi6dum3WFh1
-
DcRat
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
-
Detect Xworm Payload
-
Detect ZGRat V1
-
Modifies WinLogon for persistence
-
Process spawned unexpected child process
This typically indicates the parent process was compromised via an exploit or macro.
-
Suspicious use of NtCreateUserProcessOtherParentProcess
-
Identifies VirtualBox via ACPI registry values (likely anti-VM)
-
Blocklisted process makes network request
-
Downloads MZ/PE file
-
Drops file in Drivers directory
-
Modifies Installed Components in the registry
-
Modifies Windows Firewall
-
Stops running service(s)
-
Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
-
Checks computer location settings
Looks up country code configured in the registry, likely geofence.
-
Drops startup file
-
Executes dropped EXE
-
Loads dropped DLL
-
Unexpected DNS network traffic destination
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
-
Uses the VBS compiler for execution
-
Accesses Microsoft Outlook profiles
-
Accesses cryptocurrency files/wallets, possible credential harvesting
-
Adds Run key to start application
-
Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
-
Creates a large amount of network flows
This may indicate a network scan to discover remotely running services.
-
Drops Chrome extension
-
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
-
Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
-
Drops file in System32 directory
-
Suspicious use of NtSetInformationThreadHideFromDebugger
-
Suspicious use of SetThreadContext
-
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
2Scheduled Task/Job
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
2Scheduled Task/Job
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Impair Defenses
5Disable or Modify Tools
3Modify Registry
9Scripting
1Subvert Trust Controls
1Install Root Certificate
1Virtualization/Sandbox Evasion
1