Managed XDR

screenconnect.clientsetup-6-.exe — malware analysis report

File info

Filename
screenconnect.clientsetup-6-.exe
File type
PE32 executable (GUI) Intel 80386, for MS Windows
File size
11.1 MB
First seen
Last seen

Environment

w10/x64 en

Hashes

SHA1
356488b1050eb4ddfffc95e2d009c9862db2bd2b
SHA256
fbbd7d4cdd02e207440172dc312b6a57ae5b674b755a5dd7c6fd9ac347f07021
MD5
966f9b12119887a1e686c5e62e1e9b91

Signatures

Execution

T1059.001 suspicious_powershell: Creates suspicious powershell process
T1569.002 persistence_service: Starts newly created service
T1059.001 suspicious_process: Spawns a suspicious process
T1059.003 suspicious_process: Spawns a suspicious process
T1047 has_wmi: Executes one or several WMI requests

Persistence

T1543.003 creates_service: Creates a service, that will start automatically
T1574 dropper_dll: Creates DLL, which is then loaded into the process

Privilege Escalation

T1543.003 creates_service: Creates a service, that will start automatically
T1574 dropper_dll: Creates DLL, which is then loaded into the process
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

T1564.004 removes_zoneid_ads: Attempts to hide the indications that the file was downloaded from the Internet
T1027.002 unnamed_memory_regions_contains_pe: One or several unnamed memory regions are PE files
T1036.001 invalid_authenticode: Digital signature of the executable file has failed the verification
T1574 dropper_dll: Creates DLL, which is then loaded into the process
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1027.004 compiles_code: Compiles C# code
T1497.003 antisandbox_idletime: Detects Windows Idle Time to determine the uptime
T1497.003 antisandbox_sleep_utilities: Uses Windows utilities for pausing the execution
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
T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers
T1497.001 antisandbox_script_timer: Detected script timer window (indicative of sleep style evasion)
T1497.002 antivm_usbstor: Reads information about usbdevices from regkey

Credential Access

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

Discovery

T1033 sam_users_discovery: Enumerates users or groups in system with SAM API
T1497.003 antisandbox_idletime: Detects Windows Idle Time to determine the uptime
T1497.003 antisandbox_sleep_utilities: Uses Windows utilities for pausing the execution
T1087 has_wmi: Executes one or several WMI requests
T1087.001 local_account_discovery: Enumerates local accounts
T1049 list_ts_rdp_sessions: Lists ts/rdp sessions
T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers
T1497.001 antisandbox_script_timer: Detected script timer window (indicative of sleep style evasion)
T1497.002 antivm_usbstor: Reads information about usbdevices from regkey
T1057 has_wmi: Executes one or several WMI requests
T1082 has_wmi: Executes one or several WMI requests

Collection

T1115 checks_clipboard: Monitors clipboard data

Impact

T1486 mass_data_encryption: Encrypts data using the same key (possible ransomware behaviour)

Other

yara_rules: Static rules
creates_exe: Creates executable files in the file system
network_bind: Starts servers listening at None
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
writes_data: Writes big amount of data to disk
pe_overlay: PE file contains overlay
open_winlogon_process: Trying to open winlogon process
ce_info: ScreenConnect Configuration Data found