Managed XDR

c-windows-z13flmb.exe (Glupteba) — malware analysis report

File info

Filename
c-windows-z13flmb.exe
File type
PE32 executable (GUI) Intel 80386, for MS Windows
File size
9.3 MB
First seen
Last seen

Environment

w10/x86 en

Hashes

SHA1
f713b285990ccaf8be441b097e507fb3bab35adc
SHA256
eb75544cb17a925ce780c7d8c3b57ad0d9e5a81f69293ff0abf2e0257aafc2d5
MD5
bd7ff78d2b71f6526190d9da65fbc462

Malwares

  • Glupteba

Signatures

Execution

T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1053.005 persistence_autorun: Makes itself run automatically on Windows startup
T1569.002 persistence_service: Starts newly created service
T1047 has_wmi: Executes one or several WMI requests

Persistence

T1543.003 creates_service: Creates a service, that will start automatically
T1053.005 creates_tasks: Creates a delayed task using Task Scheduler
T1547.001 persistence_autorun: Makes itself run automatically on Windows startup
T1053.005 persistence_autorun: Makes itself run automatically on Windows startup
T1543.003 persistence_services: Modifies Services registry key
T1574.011 persistence_services: Modifies Services registry key

Privilege Escalation

T1068 integrity_level: Process privileges have been escalated
T1543.003 creates_service: Creates a service, that will start automatically
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
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

T1562.001 disables_security: Disables Windows Security options
T1564.001 stealth_file: Creates hidden or system files
T1562.004 firewall_add_rule: Modifies Firewall rules
T1497.001 antivm_vbox_devices: Detects VirtualBox through the presence of a device
T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1036 system_filename: Created a file named as a common system file
T1036 system_procname: Created a process named as a common system process
T1574.011 persistence_services: Modifies Services registry key
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
T1480 system_default_lang_id_present: Checks the system language

Discovery

T1497.001 antivm_vbox_devices: Detects VirtualBox through the presence of a device
T1082 uses_windows_utilities: Uses Windows utilities for basic Windows functionality
T1518 recon_programs: Collects information about installed programs
T1057 process_interest: Enumerates processes
T1518 locates_browser: Attempts to identify where browsers are installed
T1497.001 antivm_network_adapters: Checks NIC addresses
T1082 reads_csrss: Attempts to read csrss.exe memory
T1082 sysenv_get: Gets environment variables

Command and Control

T1071.001 network_http: Performs HTTP requests

Impact

T1489 stops_service: Stops Windows services
T1489 service_control_stop: Stops services via ControlService

Other

yara_rules: Static rules
suricata_alert: Malicious traffic detected
glupteba_behavior: Glupteba indicators detected
sc_service: Provide protections from stopping own services
executes_dropped_exe: Executes dropped exe files
creates_in_windows: Creates files in the Windows directory
modifies_certs: Attempts to generate or modify system certificates
copies_self: Creates a copy of itself
network_bind: Starts servers listening at 0.0.0.0:31461
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
suspicious_process: Spawns a suspicious process
unsigned_driver_drop: Sample is not signed and drops a device driver
driver_load: Loads a driver
no_graphical_activity: No graphic activity
create_rpc_bindings: Creates RPC connection
creates_suspended_process: Creates suspended process
test_check_service: Starts services
writes_data: Writes big amount of data to disk
open_winlogon_process: Trying to open winlogon process

Related reports

Managed XDR