Managed XDR

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

File info

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

Environment

win7/x86 en

Hashes

SHA1
27b75616417ea2d3f64f0134e2f63afcbf643406
SHA256
2618ad16c64882ec2127d84b9068bf5f2faf52e3db8fb8b72446aa4d13fd7511
MD5
46ab81e11c4486d9a951df52f33f7737

Malwares

  • Glupteba

Signatures

Execution

T1047 has_wmi: Executes one or several WMI requests

Persistence

T1547.001 persistence_autorun: Makes itself run automatically on Windows startup

Privilege Escalation

T1547.001 persistence_autorun: Makes itself run automatically on Windows startup
T1068 integrity_level: Process privileges have been escalated
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
T1562.004 firewall_add_rule: Modifies Firewall rules
T1564.001 stealth_file: Creates hidden or system files
T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1497.001 antivm_vbox_devices: Detects VirtualBox through the presence of a device
T1036 system_filename: Created a file named as a common system file
T1036 system_procname: Created a process named as a common system process
T1497.001 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
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1497.003 antisandbox_sleep: The process attempted to slow down analysis

Discovery

T1497.001 antivm_vbox_devices: Detects VirtualBox through the presence of a device
T1057 process_interest: Enumerates processes
T1082 uses_windows_utilities: Uses Windows utilities for basic Windows functionality
T1497.001 antivm_network_adapters: Checks NIC addresses
T1497.003 antisandbox_sleep: The process attempted to slow down analysis

Other

glupteba_behavior: Glupteba indicators detected
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
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
no_graphical_activity: No graphic activity
create_rpc_bindings: Creates RPC connection
has_pdb: This executable file has a PDB path
origin_langid: Unconventional language of the executable file
test_check_service: Starts services
pe_overlay: PE file contains overlay
yara_rules: Static rules

Related reports