Managed XDR
Group-IB MDP Report
Filename: wextract.exe-.mui
File Type: PE32 executable (GUI) Intel 80386, for MS Windows
File Size: 2.3 MB
SHA1: 1133a08ea3e177ffa01958db2956985829c77af9 SHA256: ce2ddfc9d872df73f6d060efa210145d0a5eff17c96289dd86c2ee2179acb327 MD5: 37e94d6116ba6201b708c7bdb9086520
Malwares: Amadey, Symmi, RedCurl
Signatures
Execution
T1059.001 suspicious_powershell: Creates suspicious powershell process
T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1053.005 persistence_autorun: Makes itself run automatically on Windows startup
T1059 autoit: AutoIt script execution detected
T1059.001 suspicious_process: Spawns a suspicious process
T1059.003 executes_dropped_cmd: Executes dropped batch files
T1059.001 url_cmdline: Cmdline of process contains URL
T1059.003 suspicious_batch: Suspicious batch
T1059.003 url_cmdline: Cmdline of process contains URL
T1047 has_wmi: Executes one or several WMI requests
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
T1574.011 persistence_services: Modifies Services registry key
T1543.003 persistence_services: Modifies Services registry key
T1574 dropper_dll: Creates DLL, which is then loaded into the process
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
T1574.011 persistence_services: Modifies Services registry key
T1543.003 persistence_services: Modifies Services registry key
T1574 dropper_dll: Creates DLL, which is then loaded into the process
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
T1562.001 disables_security: Disables Windows Security options
T1562.001 stops_security_center: Stops Security Center
T1027.002 packer_themida: Themida packer signatures detected
T1574.011 persistence_services: Modifies Services registry key
T1497.001 antivm_disk_size: Checks the amount of free disk space
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1574 dropper_dll: Creates DLL, which is then loaded into the process
T1070 stealth_window: A process created a hidden window
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_generic_video: Checks information about video adapters in registry, possibly for anti-virtualization
T1497.001 antivm_queries_computername: Retrieves the computer name
Credential Access
T1555.003 cookie_files: Accesses cookie files
T1552 cookie_files: Accesses cookie files
Discovery
T1518.001 antiav_detectfile: Attempts to detect installed antiviruses by a certain directory
T1518.001 antiav_detectservice: Attempts to detect installed antiviruses by a certain service
T1082 uses_windows_utilities: Uses Windows utilities for basic Windows functionality
T1497.001 antivm_disk_size: Checks the amount of free disk space
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1057 process_interest: Enumerates processes
T1518 locates_browser: Attempts to identify where browsers are installed
T1082 reads_csrss: Attempts to read csrss.exe memory
T1082 has_wmi: Executes one or several WMI requests
T1497.001 antivm_generic_video: Checks information about video adapters in registry, possibly for anti-virtualization
T1497.001 antivm_queries_computername: Retrieves the computer name
Command and Control
T1071.001 network_cnc_http: Suspicious HTTP traffic
T1071.001 network_http: Performs HTTP requests
T1071.001 winhttp_https: Performs HTTP/HTTPS requests using WinHttp
T1071.001 wininet_openurl: Performs HTTP/HTTPS-requests using InternetOpenUrl
T1071.001 wininet_https: Performs HTTP/HTTPS requests using WinInet
Impact
T1489 stops_service: Stops Windows services
T1489 stops_security_center: Stops Security Center
T1489 net_stop: Stops services through the use of net stop
Other
yara_rules: Static rules
suricata_alert: Malicious traffic detected
redcurl_extractor: Specific to RedCurl.Extractor behaviour has been detected
creates_many_processes: Spawns a lot of processes (over 70)
executes_dropped_exe: Executes dropped exe files
creates_exe: Creates executable files in the file system
pe_in_bcryptdecrypt: PE found in BCryptDecrypt function
creates_in_windows: Creates files in the Windows directory
create_process_failed: Could not start the process
dns_without_resolve: DNS query without a response
codepage: Checks the system code page
process_crashed: One of the processes has failed
unexpected_exception: Unexpected exception
no_graphical_activity: No graphic activity
create_rpc_bindings: Creates RPC connection
has_pdb: This executable file has a PDB path
creates_suspended_process: Creates suspended process
checks_install_language: Checks Windows installation language
error_drawtext: An error occured while executing the file
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
writes_data: Writes big amount of data to disk
Managed XDR