Managed XDR

vtdl_y4hfnnnz (DCRat) — malware analysis report

File info

Filename
vtdl_y4hfnnnz
File type
PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
File size
894.5 KB
First seen
Last seen

Environment

w10/x86 en

Hashes

SHA1
9857f34f2ff16aee72be6f325a38d5bd13b9defb
SHA256
343f754a6779576d949dfaa08f3950c07c5e10387c804608a8b0c46dec4e6cd5
MD5
2e4f5678b769aca83a4163e3ed51f5bf

Malwares

  • DCRat

Signatures

Execution

T1047 antivm_wmi: Uses WMI to detect virtual environment
T1047 has_wmi: Executes one or several WMI requests

Privilege Escalation

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

T1497.001 antivm_wmi: Uses WMI to detect virtual environment
T1497.001 antivm_disk_size: Checks the amount of free disk space
T1497.001 antivm_network_adapters: Checks NIC addresses
T1497.001 antivm_queries_computername: Retrieves the computer name
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
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 antivm_wmi: Uses WMI to detect virtual environment
T1497.001 antivm_disk_size: Checks the amount of free disk space
T1518.001 wmi_check_av: Uses WMI to check for installed antivirus software
T1082 has_wmi: Executes one or several WMI requests
T1057 has_wmi: Executes one or several WMI requests
T1497.001 antivm_network_adapters: Checks NIC addresses
T1497.001 antivm_queries_computername: Retrieves the computer name
T1497.003 antisandbox_sleep: The process attempted to slow down analysis

Other

yara_rules: Static rules
static_pe_anomaly: The PE file structure contains anomalies
dead_host: Connects to IP addresses that do not respond to requests
no_graphical_activity: No graphic activity
create_rpc_bindings: Creates RPC connection
dotnet_suspicious_module_name: Dotnet has suspicious module name
dotnet_antimetadata_analysis: Dotnet malware has anti-analysis tricks
dotnet_import_unmanaged_code: Dotnet malware statically imports unmanaged functions/modules
get_policy_info: Retrieves information about a Policy object
test_check_service: Starts services
checktokenmembership: Checks user token with CheckTokenMembership call
dotnet_suspicious_entrypoint: Dotnet has suspicious entrypoint
dotnet_downloader_possible_network_problem: Dotnet downloader possibly has network problem

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