Managed XDR

screenconnect.clientsetup-1-.exe — malware analysis report

File info

Filename
screenconnect.clientsetup-1-.exe
File type
PE32 executable (GUI) Intel 80386, for MS Windows
File size
14.1 MB
First seen
Last seen

Environment

w10/x86 en

Hashes

SHA1
4933960da0bb57fec0c9cb5a9f3a9be73bec51ea
SHA256
d99ed6c1fe544b227dde6c9073ce12e0a06ef137c3c82c8fc0253a1bdb115efb
MD5
a6b2c5fa12b5fef73633b68a56fa9b99

Signatures

Execution

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
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

T1027.002 packer_entropy: Probably contains compressed or encrypted data
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

Discovery

T1033 sam_users_discovery: Enumerates users or groups in system with SAM API
T1049 list_ts_rdp_sessions: Lists ts/rdp sessions
T1057 has_wmi: Executes one or several WMI requests
T1087.001 local_account_discovery: Enumerates local accounts
T1082 has_wmi: Executes one or several WMI requests

Exfiltration

T1022 encrypts_pc_info: Collects and encrypts information about the computer (possibly for exfiltration)

Other

yara_rules: Static rules
accesses_mailslot: Performs a Mailslot ping, possibly used to get Domain Controller information
creates_exe: Creates executable files in the file system
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
break_limit_exceeded: Warning: function calls limit has been exceeded
test_check_service: Starts services
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
valid_authenticode: The digital signature has been verified
Managed XDR