Managed XDR

wmcrms7.exe — malware analysis report

File info

Filename
wmcrms7.exe
File type
PE32 executable (GUI) Intel 80386, for MS Windows
File size
186 KB
First seen
Last seen

Environment

w10/x64 en

Hashes

SHA1
02125e15616610e47e13f6de7f7f14d09aa56276
SHA256
ae3d28ec65a853041d07c2b4425f998bd10d2615417d37c97ba1c6579c5efaae
MD5
bfddf61d9f306d0baa5651436355612f

Signatures

Execution

T1047 antivm_wmi: Uses WMI to detect virtual environment
T1047 has_wmi: Executes one or several WMI requests

Persistence

T1574.011 persistence_services: Modifies Services registry key
T1543.003 persistence_services: Modifies Services registry key

Privilege Escalation

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

T1222 takeown: May obtain file ownership using the takeown.exe tool
T1497.001 antivm_wmi: Uses WMI to detect virtual environment
T1222 icacls: May obtain or change Discretionary access control lists (DACLs)
T1574.011 persistence_services: Modifies Services registry key
T1562 delete_fw_rule: Disables Firewall rules
T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers
T1497.001 antivm_generic_productname: Checks system product name in registry, possibly for anti-virtualization
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
T1070 stealth_window: A process created a hidden window

Credential Access

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

Discovery

T1497.001 antivm_wmi: Uses WMI to detect virtual environment
T1518 recon_programs: Collects information about installed programs
T1057 has_wmi: Executes one or several WMI requests
T1057 process_interest: Enumerates processes
T1082 has_wmi: Executes one or several WMI requests
T1082 uses_windows_utilities: Uses Windows utilities for basic Windows functionality
T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers
T1497.001 antivm_generic_productname: Checks system product name in registry, possibly for anti-virtualization

Command and Control

T1071.001 winhttp_https: Performs HTTP/HTTPS requests using WinHttp

Impact

T1489 net_stop: Stops services through the use of net stop

Other

creates_many_processes: Spawns a lot of processes (over 70)
creates_in_windows: Creates files in the Windows directory
network_bind: Starts servers listening at None
non_quadratic_icon: Icon is not square
no_graphical_activity: No graphic activity
create_rpc_bindings: Creates RPC connection
require_administrator: Requests administrator privileges
has_pdb: This executable file has a PDB path
creates_suspended_process: Creates suspended process
suspicious_network_port: Performs TCP or UDP request to non-standard port
test_check_service: Starts services
checktokenmembership: Checks user token with CheckTokenMembership call
pe_overlay: PE file contains overlay
valid_authenticode: The digital signature has been verified