Managed XDR

vtdl_tofu0awd — malware analysis report

File info

Filename
vtdl_tofu0awd
File type
PE32+ executable (GUI) x86-64, for MS Windows
File size
7 MB
First seen
Last seen

Environment

win7/x64 en

Hashes

SHA1
861748187135d659f92d334f71e49dac91c343f2
SHA256
e1ab385d600147ac24af75d21054dc9e75054712ec8e057c6794867b6f9a9ed1
MD5
a9132f428348b14c4c84a7c260fe1568

Signatures

Persistence

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

Privilege Escalation

T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process
T1574 dropper_dll: Creates DLL, which is then loaded into the process

Defense Evasion

T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1497.001 antivm_disk_size: Checks the amount of free disk space
T1222 icacls: May obtain or change Discretionary access control lists (DACLs)
T1497.001 antivm_queries_computername: Retrieves the computer name
T1480 system_default_lang_id_present: Checks the system language
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

Credential Access

T1552 cookie_files: Accesses cookie files
T1555.003 cookie_files: Accesses cookie files

Discovery

T1497.001 antivm_disk_size: Checks the amount of free disk space
T1497.001 antivm_queries_computername: Retrieves the computer name
T1135 server_share_info: Retrieves information about each shared resource on a server

Command and Control

T1071 network_irc: Connects to the IRC server, probably a botnet part
T1071.001 network_http: Performs HTTP requests
T1071.001 wininet_https: Performs HTTP/HTTPS requests using WinInet

Other

suricata_alert: Malicious traffic detected
creates_exe: Creates executable files in the file system
executes_dropped_exe: Executes dropped exe files
network_ftp: Performs FTP requests
create_rpc_bindings: Creates RPC connection
require_administrator: Requests administrator privileges
break_limit_exceeded: Warning: function calls limit has been exceeded
get_policy_info: Retrieves information about a Policy object
creates_in_programdata: Creates files in the ProgramData directory
test_check_service: Starts services
writes_data: Writes big amount of data to disk
pe_overlay: PE file contains overlay
yara_rules: Static rules
ce_info: SimpleHelp Configuration Data found
valid_authenticode: The digital signature has been verified