Managed XDR

vtdl_1772999292_mpx6w9xw (DCRat) — malware analysis report

File info

Filename
vtdl_1772999292_mpx6w9xw
File type
PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
File size
1.1 MB
First seen
Last seen

Environment

w10/x64 en

Hashes

SHA1
0b9e54241fc5668b4b9fab43ecc81a13fceade5e
SHA256
1b82118ba3dd9d43ac658f0ddb1ce165a531b7389cee36b2f7eb71e487424e3f
MD5
bffbef535296ece25bcd40eb3261e0b1

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
T1059.001 suspicious_powershell: Creates suspicious powershell process
T1059.007 bad_js: Suspicious Javascript file
T1047 antivm_wmi: Uses WMI to detect virtual environment
T1047 has_wmi: Executes one or several WMI requests
T1059.003 executes_dropped_cmd: Executes dropped batch files
T1204.002 mimics_extension: Attempts to mimic the file extension
T1059.003 suspicious_batch: Suspicious batch

Persistence

T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1053.005 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
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
T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1562 modify_uac_prompt: Attempts to modify UAC pop-up window behavior
T1562 disables_uac: Disable UAC
T1564.001 stealth_file: Creates hidden or system files
T1036 system_filename: Created a file named as a common system file
T1497 debugs_self: Creates a process and debugs it
T1497.001 antivm_wmi: Uses WMI to detect virtual environment
T1497.001 antivm_disk_size: Checks the amount of free disk space
T1480 system_default_lang_id_present: Checks the system language
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
T1036 mimics_extension: Attempts to mimic the file extension
T1562.001 windows_defender_add_exclusion: Adds a path to Microsoft Defender exclusion list
T1070 stealth_window: A process created a hidden window
T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers
T1497.001 antivm_generic_productname: Checks system product name in registry, possibly for anti-virtualization
T1497.001 antivm_queries_computername: Retrieves the computer name

Credential Access

T1555.004 windows_credential_manager: Acquire credentials from the Windows Credential Manager

Discovery

T1033 sam_users_discovery: Enumerates users or groups in system with SAM API
T1497 debugs_self: Creates a process and debugs it
T1497.001 antivm_wmi: Uses WMI to detect virtual environment
T1497.001 antivm_disk_size: Checks the amount of free disk space
T1082 has_wmi: Executes one or several WMI requests
T1518 locates_browser: Attempts to identify where browsers are installed
T1135 server_share_info: Retrieves information about each shared resource on a server
T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers
T1497.001 antivm_generic_productname: Checks system product name in registry, possibly for anti-virtualization
T1497.001 antivm_queries_computername: Retrieves the computer name

Collection

T1115 checks_clipboard: Monitors clipboard data
T1115 set_clipboard_data: Sets data to clipboard

Command and Control

T1105 cmdline_curl: Uses curl utility for network data transferring

Other

yara_rules: Static rules
suspicious_process: Spawns a suspicious process
creates_many_processes: Spawns a lot of processes (over 70)
creates_exe: Creates executable files in the file system
created_exe_is_similar_to_system_one: Сreated exe is similar to system one
static_pe_anomaly: The PE file structure contains anomalies
copies_self: Creates a copy of itself
network_bind: Starts servers listening at None
executes_dropped_exe: Executes dropped exe files
create_rpc_bindings: Creates RPC connection
dotnet_suspicious_module_name: Dotnet program has suspicious module name
creates_suspended_process: Creates suspended process
dotnet_import_unmanaged_code: Dotnet program statically imports unmanaged functions/modules
break_limit_exceeded: Warning: function calls limit has been exceeded
add_base64_to_registry: Writes Base64 encoded data to registry, then read it
suspicious_network_port: Performs TCP or UDP request to non-standard port
test_check_service: Starts services
writes_data: Writes big amount of data to disk
open_winlogon_process: Trying to open winlogon process
dotnet_suspicious_entrypoint: Dotnet program has suspicious entrypoint
js_suspicious: Suspicious javascript
dotnet_downloader_possible_network_problem: Dotnet program possibly has network problem

Related reports

Managed XDR