Managed XDR

c-msocache-all-users-9...000ff1ce-c-rcxdfad.tmp (DCRat) — malware analysis report

File info

Filename
c-msocache-all-users-90160000-0019-0409-0000-0000000ff1ce-c-rcxdfad.tmp
File type
PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
File size
885 KB
First seen
Last seen

Environment

w10/x86 en

Hashes

SHA1
5232b470df990f8809430125d4c7f54a954d742f
SHA256
f80ed3e92e45e5313192e324c42eedba12d2775989ac1cbf109eae4f6edb9f13
MD5
2a4fc586ec2a960b73384bb4f4f34554

Malwares

  • DCRat

Signatures

Execution

T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1059 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
T1059.005 obfuscated_vbs: Detected obfuscated VBS

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

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
T1027 obfuscated_vbs: Detected obfuscated VBS
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
T1070 stealth_window: A process created a hidden window
T1497.001 antisandbox_script_timer: Detected script timer window (indicative of sleep style evasion)
T1497.001 antivm_queries_computername: Retrieves the computer name

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
T1518.001 wmi_check_av: Uses WMI to check for installed antivirus software
T1057 has_wmi: Executes one or several WMI requests
T1082 has_wmi: Executes one or several WMI requests
T1497.001 antivm_network_adapters: Checks NIC addresses
T1497.001 antisandbox_script_timer: Detected script timer window (indicative of sleep style evasion)
T1497.001 antivm_queries_computername: Retrieves the computer name

Command and Control

T1071.001 network_http: Performs HTTP requests

Other

yara_rules: Static rules
suricata_alert: Malicious traffic detected
dead_dotnet_downloader_404: Dotnet downloader attempts to connect to a dead host
creates_exe: Creates executable files in the file system
creates_many_processes: Spawns a lot of processes (over 70)
creates_in_windows: Creates files in the Windows directory
copies_self: Creates a copy of itself
executes_dropped_exe: Executes dropped exe files
no_graphical_activity: No graphic activity
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
test_check_service: Starts services
checktokenmembership: Checks user token with CheckTokenMembership call
open_winlogon_process: Trying to open winlogon process
dotnet_suspicious_entrypoint: Dotnet program has suspicious entrypoint
dotnet_suspicious_module_name: Dotnet program has suspicious module name

Related reports