Managed XDR

vtdl_1791127431_85m8z_tk — malware analysis report

File info

Filename
vtdl_1791127431_85m8z_tk
File type
MS Windows shortcut, Item id list present, Has Relative path, Has Working directory, Has command line arguments, Icon, ctime=Mon Jan 1 00:00:00 1601, mtime=Mon Jan 1 00:00:00 1601, atime=Mon Jan 1 00:00:00 1601, length=0, window=hidenormalshowminimized
File size
8 MB
First seen
Last seen

Environment

w10/x64 en

Hashes

SHA1
bd1c954f04f341cf4ff7657ff34023a22c80de08
SHA256
37b13f5b3fa238f65c1528160693c4de67568e87ebb0f5fc0ef457204f3eb7b5
MD5
566e04bb7da562133bfd1f7fc47992d2

Signatures

Execution

T1204 suspicious_lnk: LNK file with suspicious content
T1059 cmd_vbs: Uses cmd.exe to generate VBS
T1047 antivm_wmi: Uses WMI to detect virtual environment
T1047 has_wmi: Executes one or several WMI requests
T1059.003 suspicious_cmd: Executes cmd.exe with a suspicious command line

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

T1497.001 antivm_wmi: Uses WMI to detect virtual environment
T1027 suspicious_cmd: Executes cmd.exe with a suspicious command line
T1027.002 pe_features: Executable file has PE anomalies (may be false positive)
T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers
T1497.001 antisandbox_script_timer: Detected script timer window (indicative of sleep style evasion)
T1497.001 antivm_generic_productname: Checks system product name in registry, possibly for anti-virtualization
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
T1027.002 packer_entropy: Probably contains compressed or encrypted data

Credential Access

T1555.004 windows_credential_manager: Acquire credentials from the Windows Credential Manager

Discovery

T1497.001 antivm_wmi: Uses WMI to detect virtual environment
T1082 has_wmi: Executes one or several WMI requests
T1057 has_wmi: Executes one or several WMI requests
T1057 process_interest: Enumerates processes
T1518 locates_browser: Attempts to identify where browsers are installed
T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers
T1497.001 antisandbox_script_timer: Detected script timer window (indicative of sleep style evasion)
T1497.001 antivm_generic_productname: Checks system product name in registry, possibly for anti-virtualization

Command and Control

T1071.001 winhttp_https: Performs HTTP/HTTPS requests using WinHttp

Other

executes_dropped_exe: Executes dropped exe files
copies_self: Creates a copy of itself
network_bind: Starts servers listening at None
creates_exe: Creates executable files in the file system
suspicious_explorer_cmdline: Starts explorer.exe process with suspicious command line
process_crashed: One of the processes has failed
creates_in_windows: Creates files in the Windows directory
valid_authenticode: The digital signature has been verified
has_pdb: This executable file has a PDB path
creates_suspended_process: Creates suspended process
message_box: Displays a message
suspicious_network_port: Performs TCP or UDP request to non-standard port
test_check_service: Starts services
pe_overlay: PE file contains overlay
yara_rules: Static rules