Managed XDR

vtdl_lmk4ru21 (DCRat) — malware analysis report

File info

Filename
vtdl_lmk4ru21
File type
PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
File size
571 KB
First seen
Last seen

Environment

w10/x86 en

Hashes

SHA1
6e27a8ecbea08041f57a2a466d9c26bc923e754d
SHA256
db02f8e3d1a3db35b71c8a16816c55274f1cc784767e4bb73f23c0a1378eb7cf
MD5
b3f11e280ea7d7f23210b15c0868befb

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_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

T1082 has_wmi: Executes one or several WMI requests
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_queries_computername: Retrieves the computer name

Other

yara_rules: Static rules
no_graphical_activity: No graphic activity
create_rpc_bindings: Creates RPC connection
dotnet_suspicious_module_name: Dotnet program has suspicious module name
dotnet_import_unmanaged_code: Dotnet program statically imports unmanaged functions/modules
dotnet_suspicious_entrypoint: Dotnet program has suspicious entrypoint
dotnet_downloader_possible_network_problem: Dotnet program possibly has network problem

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