Managed XDR

libcrypto (DCRat) — malware analysis report

File info

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

Environment

w10/x64 en

Hashes

SHA1
603e1394e790d46496f75f294c71c209a0e1e8ad
SHA256
94eb46540483436010e789ff1621d6be80031119f374d0836dacb5b635e85919
MD5
58f7f3ec8e119dc87ed66f53ba3ed7a5

Malwares

  • DCRat

Signatures

Execution

T1059.001 url_cmdline: Cmdline of process contains URL
T1059.003 url_cmdline: Cmdline of process contains URL

Privilege Escalation

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 pe_features: Executable file has PE anomalies (may be false positive)
T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers
T1497.002 antivm_usbstor: Reads information about usbdevices from regkey
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process

Credential Access

T1555.004 windows_credential_manager: Acquire credentials from the Windows Credential Manager

Discovery

T1518 locates_browser: Attempts to identify where browsers are installed
T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers
T1497.002 antivm_usbstor: Reads information about usbdevices from regkey

Command and Control

T1071.001 network_http: Performs HTTP requests

Other

yara_rules: Static rules
network_bind: Starts servers listening at None
static_pe_duplicate_sections: The PE file structure contains anomalies: duplicate section 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
message_box: Displays a message
suspicious_network_port: Performs TCP or UDP request to non-standard port
test_check_service: Starts services
writes_data: Writes big amount of data to disk
dotnet_suspicious_entrypoint: Dotnet program has suspicious entrypoint
js_suspicious: Suspicious javascript

Related reports

Managed XDR