Managed XDR

invoice_details.pdf.lnk — malware analysis report

File info

Filename
invoice_details.pdf.lnk
File type
MS Windows shortcut, Item id list present, Points to a file or directory, Has Relative path, Has command line arguments, Icon, Archive, ctime=Tue May 4 03:11:53 2021, mtime=Tue May 4 03:11:53 2021, atime=Tue May 4 03:11:53 2021, length=278528, window=hide
File size
1.9 KB
First seen
Last seen

Environment

w10/x64 en

Hashes

SHA1
a6ecbbdac81f087194af89103b8bf745f50a0b3a
SHA256
a7fa126c91e4f7a35bbff4e7910c8ab4816c6424bd48b4a51f89fa2330e4ab9f
MD5
05459b02de31af6068142cf9034def3c

Signatures

Execution

T1204 suspicious_lnk: LNK file with suspicious content
T1059.001 suspicious_powershell: Creates suspicious PowerShell process
T1569.002 persistence_service: Starts newly created service
T1047 antivm_wmi: Uses WMI to detect virtual environment
T1047 has_wmi: Executes one or several WMI requests
T1059.001 suspicious_process: Spawns a suspicious process
T1059.001 url_cmdline: Cmdline of process contains URL
T1059.003 executes_dropped_cmd: Executes dropped batch files
T1059.003 url_cmdline: Cmdline of process contains URL
T1059.003 suspicious_batch: Suspicious batch

Persistence

T1547.002 persistence_autorun: Makes itself run automatically on Windows startup
T1543.003 creates_service: Creates a service, that will start automatically
T1176 browser_addon: Installs browser extension
T1574 dropper_dll: Creates DLL, which is then loaded into the process

Privilege Escalation

T1547.002 persistence_autorun: Makes itself run automatically on Windows startup
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

T1218 suspicious_cmdline: Executes a suspicious command
T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1574 dropper_dll: Creates DLL, which is then loaded into the process
T1497.001 antivm_wmi: Uses WMI to detect virtual environment
T1497.003 antisandbox_idletime: Detects Windows Idle Time to determine the uptime
T1497.001 antivm_network_adapters: Checks NIC addresses
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
T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers
T1497.001 antivm_generic_productname: Checks system product name in registry, possibly for anti-virtualization
T1497.001 antivm_queries_computername: Retrieves the computer name
T1218 suspicious_cmdline_keywords: Cmdline with suspicious keywords

Credential Access

T1056.001 infostealer_keylogger: Keylogger (intercepts keystrokes)

Discovery

T1033 sam_users_discovery: Enumerates users or groups in system with SAM API
T1057 has_wmi: Executes one or several WMI requests
T1497.001 antivm_wmi: Uses WMI to detect virtual environment
T1497.003 antisandbox_idletime: Detects Windows Idle Time to determine the uptime
T1082 has_wmi: Executes one or several WMI requests
T1518 locates_browser: Attempts to identify where browsers are installed
T1497.001 antivm_network_adapters: Checks NIC addresses
T1087.001 local_account_discovery: Enumerates local accounts
T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers
T1497.001 antivm_generic_productname: Checks system product name in registry, possibly for anti-virtualization
T1497.001 antivm_queries_computername: Retrieves the computer name
T1082 fingerprint_to_file: Collects data about system and user and writes it to a text file
T1049 list_ts_rdp_sessions: Lists ts/rdp sessions

Collection

T1056.001 infostealer_keylogger: Keylogger (intercepts keystrokes)

Command and Control

T1071.001 network_cnc_http: Suspicious HTTP traffic
T1071.001 network_http: Performs HTTP requests
T1105 cmdline_curl: Uses curl utility for network data transferring
T1071.001 winhttp_https: Performs HTTP/HTTPS requests using WinHttp
T1071.001 wininet_https: Performs HTTP/HTTPS requests using WinInet

Exfiltration

T1022 encrypts_pc_info: Collects and encrypts information about the computer (possibly for exfiltration)

Other

suricata_alert: Malicious traffic detected
kills_explorer: Terminates explorer.exe process
creates_in_windows: Creates files in the Windows directory
creates_exe: Creates executable files in the file system
executes_dropped_exe: Executes dropped exe files
network_powershell: PowerShell process network connection detected
create_rpc_bindings: Creates RPC connection
creates_suspended_process: Creates suspended process
break_limit_exceeded: Warning: function calls limit has been exceeded
malware_cmdline: Suspicious words in the command line
test_check_service: Starts services
open_winlogon_process: Trying to open winlogon process
yara_rules: Static rules
dotnet_suspicious_cultureidentifier: Dotnet program contains invalid CultureIdentifier
Managed XDR