Managed XDR

efesos_express_specifications.exe — malware analysis report

File info

Filename
efesos_express_specifications.exe
File type
PE32 executable (GUI) Intel 80386, for MS Windows
File size
5.6 MB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
c5622bbb7d490866195e9901fc5278988ff9319b
SHA256
f4ca279e46bcfe091b36248306971c59f198ccfc1483b3ebd4cffa868147dfd6
MD5
4144fbe9d7e533e92ad5c8ae2d99dfe0

Signatures

Execution

T1569.002 persistence_service: Starts newly created service

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

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
T1497.001 antivm_queries_computername: Retrieves the computer name
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
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
T1497.001 antivm_queries_computername: Retrieves the computer name
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1087.001 local_account_discovery: Enumerates local accounts
T1049 list_ts_rdp_sessions: Lists ts/rdp sessions

Other

creates_exe: Creates executable files in the file system
dns_without_resolve: DNS query without a response
executes_dropped_exe: Executes dropped exe files
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
get_policy_info: Retrieves information about a Policy object
test_check_service: Starts services
pe_overlay: PE file contains overlay
yara_rules: Static rules
ce_info: ScreenConnect Configuration Data found