Managed XDR

vtdl_1744743226_tt_67wox (DCRat) — malware analysis report

File info

Filename
vtdl_1744743226_tt_67wox
File type
PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
File size
920.5 KB
First seen
Last seen

Environment

w10/x86 en

Hashes

SHA1
be3893f60029198f2e7f7363b2064484eb79ef63
SHA256
98f9e2862e04a75996d9e57bb44b8959c72f1aa4f086503553a1297847c68d85
MD5
07edc92588559f6dd5a1d59312ea22ad

Malwares

  • DCRat

Signatures

Execution

T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1053.005 persistence_autorun: Makes itself run automatically on Windows startup

Persistence

T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1053.005 persistence_autorun: Makes itself run automatically on Windows startup
T1547.001 persistence_autorun: Makes itself run automatically on Windows startup
T1547.004 persistence_autorun: Makes itself run automatically on Windows startup

Privilege Escalation

T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1053.005 persistence_autorun: Makes itself run automatically on Windows startup
T1547.001 persistence_autorun: Makes itself run automatically on Windows startup
T1547.004 persistence_autorun: Makes itself run automatically on Windows startup
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

T1564.001 hides_original_file: Makes original executable file hidden
T1027.002 packer_polymorphic: Creates a modified copy of itself
T1564.001 stealth_file: Creates hidden or system files
T1497 debugs_self: Creates a process and debugs it
T1497.001 antivm_disk_size: Checks the amount of free disk space
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1036 system_filename: Created a file named as a common system file
T1497.001 antivm_network_adapters: Checks NIC addresses
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
T1070 stealth_window: A process created a hidden window
T1480 system_default_lang_id_present: Checks the system language

Discovery

T1497 debugs_self: Creates a process and debugs it
T1497.001 antivm_disk_size: Checks the amount of free disk space
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1497.001 antivm_network_adapters: Checks NIC addresses
T1497.001 antivm_queries_computername: Retrieves the computer name
T1135 server_share_info: Retrieves information about each shared resource on a server

Command and Control

T1071.001 network_http: Performs HTTP requests

Other

yara_rules: Static rules
suspicious_process: Spawns a suspicious process
dead_dotnet_downloader_404: Dotnet downloader attempts to connect to a dead host
creates_exe: Creates executable files in the file system
executes_dropped_exe: Executes dropped exe files
creates_in_windows: Creates files in the Windows directory
copies_self: Creates a copy of itself
suspicious_process_network: Unusual process network activity detected
dns_tld_su: Connects to TLD .SU, possibly malware
no_graphical_activity: No graphic activity
dotnet_suspicious_resources_names: Dotnet program has suspicious resources names
create_rpc_bindings: Creates RPC connection
creates_suspended_process: Creates suspended process
dotnet_import_unmanaged_code: Dotnet program statically imports unmanaged functions/modules
add_base64_to_registry: Writes Base64 encoded data to registry
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
open_winlogon_process: Trying to open winlogon process
dotnet_suspicious_module_name: Dotnet program has suspicious module name

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