Managed XDR

165744.eml (Agent Tesla) — malware analysis report

File info

Filename
165744.eml
File type
SMTP mail, ASCII text, with CRLF line terminators
File size
143.6 KB
First seen
Last seen

Environment

w11/x64 en

Hashes

SHA1
77fe90b0d232106d31b1efe5fdce0218db46bccd
SHA256
49beadd61832514cef8f45d9556ac354ae1000014b2127be84077cf7ed030cb2
MD5
a2a9381f1fa584660ef2b13a86d90479

Malwares

  • Agent Tesla

Signatures

Execution

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

Persistence

T1037 persistence_autorun: Makes itself run automatically on Windows startup

Privilege Escalation

T1037 persistence_autorun: Makes itself run automatically on Windows startup
T1055 injection_failed: The attempt to inject into a process has failed
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

T1564.001 stealth_file: Creates hidden or system files
T1497.001 antivm_wmi: Uses WMI to detect virtual environment
T1055 injection_failed: The attempt to inject into a process has failed
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 many_env_vars: An extensive number of environment variables has been created (possible sign of obfuscation)
T1202 lolbin_conhost: conhost.exe spawning unexpected processes via --headless argument
T1562.001 amsi_patching_attempt: Attempts to patch Microsoft AMSI protection (amsi.dll)
T1070 stealth_window: A process created a hidden window
T1497.001 antisandbox_script_timer: Detected script timer window (indicative of sleep style evasion)

Credential Access

T1552 infostealer_browser: Retrieves personal information from local Internet browsers
T1503 infostealer_browser: Retrieves personal information from local Internet browsers
T1552 infostealer_mail: Collects personal data from local email clients
T1552 infostealer_ftp: Collects data from local FTP clients
T1552.001 infostealer_winscp: Collects information from configuration file of WinSCP
T1552.001 infostealer_vpn: Collects information about installed VPN software
T1555.003 cookie_files: Accesses cookie files
T1555.004 windows_credential_manager: Acquire credentials from the Windows Credential Manager
T1552 cookie_files: Accesses cookie files

Discovery

T1012 infostealer_dm: Retrieves sensitive data from download managers
T1033 recon_beacon: The process has sent information about the computer over the network
T1518.001 wmi_check_av: Uses WMI to check for installed antivirus software
T1057 has_wmi: Executes one or several WMI requests
T1497.001 antivm_wmi: Uses WMI to detect virtual environment
T1082 has_wmi: Executes one or several WMI requests
T1518 locates_browser: Attempts to identify where browsers are installed
T1497.001 antisandbox_script_timer: Detected script timer window (indicative of sleep style evasion)

Collection

T1114 infostealer_mail: Collects personal data from local email clients

Command and Control

T1071.001 recon_beacon: The process has sent information about the computer over the network
T1071.001 network_http: Performs HTTP requests

Other

suricata_alert: Malicious traffic detected
agent_tesla_smtp: Agent Tesla behavioral patterns detected
copies_self: Creates a copy of itself
creates_exe: Creates executable files in the file system
network_powershell: PowerShell process network connection detected
network_ftp: Performs FTP requests
no_graphical_activity: No graphic activity
create_rpc_bindings: Creates RPC connection
creates_suspended_process: Creates suspended process
test_check_service: Starts services
writes_data: Writes big amount of data to disk

Related reports

Managed XDR