Managed XDR

vtdl_ufpb_24u — malware analysis report

File info

Filename
vtdl_ufpb_24u
File type
PE32 executable (GUI) Intel 80386, for MS Windows, Nullsoft Installer self-extracting archive
File size
867.5 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
8448949db7a22d145980b3cf669a1ab4d7be9ba2
SHA256
505e129cb42bc37fa476ea0875a5e58181676af97d75459f3da50fe2b843349e
MD5
d2e105a6c65a7572335c32e432828a41

Signatures

Execution

T1059.001 suspicious_process: Spawns a suspicious process
T1059.001 suspicious_powershell: Creates suspicious powershell process
T1059.003 executes_dropped_cmd: Executes dropped batch files
T1059.001 url_cmdline: Cmdline of process contains URL
T1059.003 url_cmdline: Cmdline of process contains URL

Persistence

T1574 dropper_dll: Creates DLL, which is then loaded into the process

Privilege Escalation

T1574 dropper_dll: Creates DLL, which is then loaded into the process
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
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1574 dropper_dll: Creates DLL, which is then loaded into the process
T1497.001 antivm_network_adapters: Checks NIC addresses
T1089 disables_smartscreen: Modifies or disables Windows SmartScreen
T1027.002 nsis_archive: One of the packages is NSIS archive
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process
T1562 disables_etw: Attempt to disable security Windows Event Logging

Discovery

T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1082 uses_windows_utilities: Uses Windows utilities for basic Windows functionality
T1497.001 antivm_network_adapters: Checks NIC addresses
T1518 locates_browser: Attempts to identify where browsers are installed

Command and Control

T1071.001 network_cnc_http: Suspicious HTTP traffic
T1071.001 network_http: Performs HTTP requests

Other

creates_many_processes: Spawns a lot of processes (over 70)
create_process_failed: Could not start the process
process_crashed: One of the processes has failed
unexpected_exception: Unexpected exception
no_graphical_activity: No graphic activity
require_administrator: Requests administrator privileges
creates_exe: Creates executable files in the file system
get_policy_info: Retrieves information about a Policy object
test_check_service: Starts services
checktokenmembership: Checks user token with CheckTokenMembership call
pe_overlay: PE file contains overlay
executes_dropped_exe: Executes dropped exe files