Managed XDR

document_6a5d57c139caf.pdf.lnk (Agent Tesla) — malware analysis report

File info

Filename
document_6a5d57c139caf.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=Thu Aug 29 14:52:48 2024, mtime=Tue Jul 21 10:21:38 2026, atime=Thu Aug 29 14:52:48 2024, length=455680, window=hide
File size
2.3 KB
First seen
Last seen

Environment

w10/x64 en

Hashes

SHA1
7023d42fcac05e80dd6e5ebec2e184ac7ed08aab
SHA256
be8def733f48802d3fcf89e815f40934ccbe9c2615229952d1bbe2dcc71bd303
MD5
831b0e8c81179c9f74d998821d24a091

Malwares

  • Agent Tesla

Signatures

Resource Development

T1585.001 social_telegram: Connects to Telegram (potentially for information gathering)
T1586.001 social_telegram: Connects to Telegram (potentially for information gathering)

Execution

T1059 powershell_cmd_longcommandline: Suspiciously long commandline
T1059.001 suspicious_powershell: Creates suspicious PowerShell process
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 url_cmdline: Cmdline of process contains URL
T1059 wscript_info_discovery: Collects info about system with Wscript.Shell
T1059.005 bad_vbs: Suspicious VBScript file

Persistence

T1547.001 persistence_autorun: Makes itself run automatically on Windows startup

Privilege Escalation

T1547.001 persistence_autorun: Makes itself run automatically on Windows startup
T1055.002 inject_write_pe: Writes PE file to another process's memory
T1055.012 injection_runpe: Injects code into another 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

T1055.002 inject_write_pe: Writes PE file to another process's memory
T1055.012 injection_runpe: Injects code into another process
T1027.002 unnamed_memory_regions_contains_pe: One or several unnamed memory regions are PE files
T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1497 antidbg_setinformationthread: Attempts to evade debugger using NtSetInformationThread
T1218 suspicious_cmdline: Executes a suspicious command
T1497 antidbg_query_process: Checks if the process is being debugged (ProcessDebugPort)
T1497.001 antivm_wmi: Uses WMI to detect virtual environment
T1497.001 antivm_disk_size: Checks the amount of free disk space
T1497.003 antisandbox_idletime: Detects Windows Idle Time to determine the uptime
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
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 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
T1497.001 antivm_queries_computername: Retrieves the computer name

Credential Access

T1555.004 windows_credential_manager: Acquire credentials from the Windows Credential Manager
T1056.001 infostealer_keylogger: Keylogger (intercepts keystrokes)

Discovery

T1497 antidbg_setinformationthread: Attempts to evade debugger using NtSetInformationThread
T1057 has_wmi: Executes one or several WMI requests
T1057 process_interest: Enumerates processes
T1497 antidbg_query_process: Checks if the process is being debugged (ProcessDebugPort)
T1497.001 antivm_wmi: Uses WMI to detect virtual environment
T1497.001 antivm_disk_size: Checks the amount of free disk space
T1497.003 antisandbox_idletime: Detects Windows Idle Time to determine the uptime
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1082 has_wmi: Executes one or several WMI requests
T1518 locates_browser: Attempts to identify where browsers are installed
T1033 wscript_info_discovery: Collects info about system with Wscript.Shell
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
T1497.001 antivm_queries_computername: Retrieves the computer name
T1082 wscript_info_discovery: Collects info about system with Wscript.Shell

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

Other

suricata_alert: Malicious traffic detected
yara_rules: Static rules
creates_exe: Creates executable files in the file system
kills_explorer: Terminates explorer.exe process
network_bind: Starts servers listening at None
suspicious_process_network: Unusual process network activity detected
dead_host: Connects to IP addresses that do not respond to requests
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
access_recyclebin: Manipulation with recyclebin detected
suspicious_network_port: Performs TCP or UDP request to non-standard port
test_check_service: Starts services

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