Managed XDR

vtdl_xbwkjp5a — malware analysis report

File info

Filename
vtdl_xbwkjp5a
File type
PE32 executable (GUI) Intel 80386, for MS Windows, RAR self-extracting archive
File size
6.6 MB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
5ab96914c88929758abd3dc0018beac8ca4400a7
SHA256
da6e83a4613896b194a3c341f4b52770e9a65fee415fcab08b1e2baef2ddd06e
MD5
0cdc661c0200f110c0f782f99edc3272

Signatures

Execution

T1569.002 persistence_service: Starts newly created service
T1059.003 executes_dropped_cmd: Executes dropped batch files

Persistence

T1546.010 persistence_autorun: Makes itself run automatically on Windows startup
T1543.003 creates_service: Creates a service, that will start automatically
T1546.010 installs_appinit: Installs itself in AppInit to inject into new processes
T1574 dropper_dll: Creates DLL, which is then loaded into the process
T1574.011 persistence_services: Modifies Services registry key
T1543.003 persistence_services: Modifies Services registry key

Privilege Escalation

T1546.010 persistence_autorun: Makes itself run automatically on Windows startup
T1055 injection_thread: Code injection to a remote process using CreateRemoteThread or NtQueueApcThread
T1543.003 creates_service: Creates a service, that will start automatically
T1055.012 injection_runpe: Injects code into another process
T1546.010 installs_appinit: Installs itself in AppInit to inject into new processes
T1574 dropper_dll: Creates DLL, which is then loaded into the process
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

T1055 injection_thread: Code injection to a remote process using CreateRemoteThread or NtQueueApcThread
T1055.012 injection_runpe: Injects code into another process
T1574 dropper_dll: Creates DLL, which is then loaded into the process
T1574.011 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
T1027.002 packer_entropy: Probably contains compressed or encrypted data
T1480 system_default_lang_id_present: Checks the system language
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1070 stealth_window: A process created a hidden window

Credential Access

T1003.001 dumps_lsass: Dumps lsass.exe process (probably, to extract credentials)
T1555.003 cookie_files: Accesses cookie files
T1552 cookie_files: Accesses cookie files

Discovery

T1057 process_interest: Enumerates processes
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1135 server_share_info: Retrieves information about each shared resource on a server
T1082 reads_csrss: Attempts to read csrss.exe memory

Command and Control

T1071.001 network_cnc_http: Suspicious HTTP traffic
T1071.001 network_http: Performs HTTP requests
T1071.001 wininet_openurl: Performs HTTP/HTTPS-requests using InternetOpenUrl

Impact

T1489 service_control_stop: Stops services via ControlService

Other

yara_rules: Static rules
suricata_alert: Malicious traffic detected
creates_in_windows: Creates files in the Windows directory
creates_exe: Creates executable files in the file system
dns_without_resolve: DNS query without a response
unexpected_exception: Unexpected exception
unsigned_driver_drop: Sample is not signed and drops a device driver
driver_load: Loads a driver
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
get_policy_info: Retrieves information about a Policy object
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
executes_dropped_exe: Executes dropped exe files