Managed XDR

c-msocache-all-users-9...000ff1ce-c-rcxb1b6.tmp (DCRat) — malware analysis report

File info

Filename
c-msocache-all-users-90160000-0018-0409-0000-0000000ff1ce-c-rcxb1b6.tmp
File type
PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows
File size
920.5 KB
First seen
Last seen

Environment

w10/x86 en

Hashes

SHA1
6bbb7500cb4f9571990e82e9693b03d2f9a35dcc
SHA256
65424403cfa92a0b8740e5f0dec9ac706c6ce543c9aabf90630d0fc6f956e2e7
MD5
3b9dc7499e9b5a16843c4b13ce1e4053

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
T1059.003 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
T1547.001 persistence_autorun: Makes itself run automatically on Windows startup
T1547.004 persistence_autorun: Makes itself run automatically on Windows startup
T1053.005 persistence_autorun: Makes itself run automatically on Windows startup

Privilege Escalation

T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1547.001 persistence_autorun: Makes itself run automatically on Windows startup
T1547.004 persistence_autorun: Makes itself run automatically on Windows startup
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
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
T1497 debugs_self: Creates a process and debugs it
T1497.001 antivm_disk_size: Checks the amount of free disk space
T1497.003 antisandbox_idletime: Detects Windows Idle Time to determine the uptime
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_disk_size: Checks the amount of free disk space
T1497.003 antisandbox_idletime: Detects Windows Idle Time to determine the uptime
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1497.001 antivm_network_adapters: Checks NIC addresses
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
suspicious_process: Spawns a suspicious process
dead_dotnet_downloader_404: Dotnet downloader attempts to connect to a dead host
creates_exe: Creates executable files in the file system
copies_self: Creates a copy of itself
dns_tld_su: Connects to TLD .SU, possibly malware
executes_dropped_exe: Executes dropped exe files
dotnet_suspicious_resources_names: Dotnet program has suspicious resources names
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
creates_in_programdata: Creates files in the ProgramData directory
checktokenmembership: Checks user token with CheckTokenMembership call
writes_data: Writes big amount of data to disk
open_winlogon_process: Trying to open winlogon process

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