Managed XDR

vtdl_xk3sk2i5 (RMS, BURNSRAT) — malware analysis report

File info

Filename
vtdl_xk3sk2i5
File type
PE32+ executable (GUI) x86-64 Mono/.Net assembly, for MS Windows
File size
159.5 KB
First seen
Last seen

Environment

w10/x64 en

Hashes

SHA1
ea74eb14dc45c552cb4e58bb4b2bbe47a0e17cec
SHA256
073664dfad72a3588426fefa56673e775c29d1a82a8773d1e57f9ed88ba218b0
MD5
8a84d6f6ee0f3231c747cff9ac387d16

Malwares

  • RMS
  • BURNSRAT

Signatures

Execution

T1059.001 suspicious_powershell: Creates suspicious powershell process
T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1569.002 persistence_service: Starts newly created service
T1047 has_wmi: Executes one or several WMI requests

Persistence

T1543.003 creates_service: Creates a service, that will start automatically
T1547.001 persistence_autorun: Makes itself run automatically on Windows startup
T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1543.003 add_service_to_group: Adds created service to a group
T1574 dropper_dll: Creates DLL, which is then loaded into the process

Privilege Escalation

T1547.001 persistence_autorun: Makes itself run automatically on Windows startup
T1543.003 creates_service: Creates a service, that will start automatically
T1055.002 inject_write_pe: Writes PE file to another process's memory
T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1055.012 injection_runpe: Injects code into another process
T1055 injection_runpe_2: Executes injected code in another process
T1543.003 add_service_to_group: Adds created service to a group
T1574 dropper_dll: Creates DLL, which is then loaded into the process
T1134 sets_privilegies_via_adjusttokenprivileges: Sets process privilege via AdjustTokenPrivileges
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process

Defense Evasion

T1055.002 inject_write_pe: Writes PE file to another process's memory
T1055.012 injection_runpe: Injects code into another process
T1497.001 antisandbox_productid: Obtains Windows ProductID, probably to fingerprint a sandbox
T1497.001 antivm_firmware: Attempts to detect VM by firmware
T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1055 injection_runpe_2: Executes injected code in another process
T1497.001 antivm_disk_size: Checks the amount of free disk space
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1574 dropper_dll: Creates DLL, which is then loaded into the process
T1497.001 antivm_network_adapters: Checks NIC addresses
T1497 antidbg_strings: Checks for malware analysis tools (specific strings found)
T1497 checks_firmware: Attempts to read firmware information (potentially for evasion)
T1497.001 antivm_queries_computername: Retrieves the computer name
T1134 sets_privilegies_via_adjusttokenprivileges: Sets process privilege via AdjustTokenPrivileges
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process

Discovery

T1497.001 antisandbox_productid: Obtains Windows ProductID, probably to fingerprint a sandbox
T1497.001 antivm_firmware: Attempts to detect VM by firmware
T1497.001 antivm_disk_size: Checks the amount of free disk space
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1518.001 wmi_check_av: Uses WMI to check for installed antivirus software
T1497.001 antivm_network_adapters: Checks NIC addresses
T1497 antidbg_strings: Checks for malware analysis tools (specific strings found)
T1497 checks_firmware: Attempts to read firmware information (potentially for evasion)
T1497.001 antivm_queries_computername: Retrieves the computer name
T1082 checks_firmware: Attempts to read firmware information (potentially for evasion)

Command and Control

T1071.001 network_cnc_http: Suspicious HTTP traffic
T1071.001 network_http: Performs HTTP requests
T1071.001 wininet_https: Performs HTTP/HTTPS requests using WinInet

Other

yara_rules: Static rules
suricata_alert: Malicious traffic detected
creates_exe: Creates executable files in the file system
copies_self: Creates a copy of itself
network_bind: Starts servers listening at 127.0.0.1:5660, None
suspicious_process_network: Unusual process network activity detected
dead_host: Connects to IP addresses that do not respond to requests
executes_dropped_exe: Executes dropped exe files
process_crashed: One of the processes has failed
no_graphical_activity: No graphic activity
create_rpc_bindings: Creates RPC connection
dotnet_suspicious_module_name: Dotnet program has suspicious module name
creates_suspended_process: Creates suspended process
break_limit_exceeded: Warning: function calls limit has been exceeded
get_server_info: Retrieves current configuration information for the specified server
get_policy_info: Retrieves information about a Policy object
creates_in_programdata: Creates files in the ProgramData directory
test_check_service: Starts services
checktokenmembership: Checks user token with CheckTokenMembership call
dotnet_suspicious_entrypoint: Dotnet program has suspicious entrypoint

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