Managed XDR

c-msocache-all-users-9...ce-c-runtimebroker.exe (DCRat) — malware analysis report

File info

Filename
c-msocache-all-users-90160000-0016-0409-0000-0000000ff1ce-c-runtimebroker.exe
File type
PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
File size
999.5 KB
First seen
Last seen

Environment

w10/x86 en

Hashes

SHA1
595559f9a1d90a6f8db8b48377a5d8e0af688002
SHA256
c8ef3a979b1a6c3d4b46c1bc03d0e84fceff99539b88fe55b1bd0e612a1f5c45
MD5
361a653c3532aa2a58a13a8d069f5f81

Malwares

  • DCRat

Signatures

Execution

T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1059.003 suspicious_process: Spawns a suspicious process
T1053.005 persistence_autorun: Makes itself run automatically on Windows startup
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
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
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 stealth_file: Creates hidden or system files
T1027.002 packer_polymorphic: Creates a modified copy of itself
T1036 system_filename: Created a file named as a common system file
T1036 system_procname: Created a process named as a common system process
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
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1497.001 antivm_network_adapters: Checks NIC addresses
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
T1497.001 antivm_queries_computername: Retrieves the computer name
T1070 stealth_window: A process created a hidden window

Discovery

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
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1082 has_wmi: Executes one or several WMI requests
T1057 has_wmi: Executes one or several WMI requests
T1518.001 wmi_check_av: Uses WMI to check for installed antivirus software
T1497.001 antivm_network_adapters: Checks NIC addresses
T1497.001 antivm_queries_computername: Retrieves the computer name

Other

yara_rules: Static rules
copies_self: Creates a copy of itself
creates_exe: Creates executable files in the file system
suspicious_process_network: Unusual process network activity detected
dns_without_resolve: DNS query without a response
executes_dropped_exe: Executes dropped exe files
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
get_policy_info: Retrieves information about a Policy object
creates_in_programdata: Creates files in the ProgramData directory
checktokenmembership: Checks user token with CheckTokenMembership call
open_winlogon_process: Trying to open winlogon process
dotnet_downloader_possible_network_problem: Dotnet program possibly has network problem
dotnet_suspicious_module_name: Dotnet program has suspicious module name

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