Managed XDR

8d4a8d05.doc (Agent Tesla) — malware analysis report

File info

Filename
8d4a8d05.doc
File type
Rich Text Format data, version 1, unknown character set
File size
115.9 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
b103779743b1b8f24a1a5f3bda28e7f44237e88c
SHA256
7edf2ddff9ea5dd637356f523c91bc0348a48094beabdd57c7c32aecccbb4594
MD5
f0bb54b2d0c5b4cf1ad745d3659149ed

Malwares

  • Agent Tesla

Signatures

Execution

T1059.001 suspicious_powershell: Suspicious document behaviour (creates powershell process)
T1203 exploit_CVE_2017_11882: Exploits CVE-2017-11882 vulnerability
T1059 powershell_cmd_longcommandline: Suspiciously long commandline
T1203 office_exploit_http: The document exhibits suspicious behaviour (performs HTTP requests)
T1059 suspicious_process: Spawns a suspicious process
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

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

Defense Evasion

T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1497.001 antisandbox_script_timer: Detected script timer window (indicative of sleep style evasion)
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

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

Discovery

T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1497.001 antisandbox_script_timer: Detected script timer window (indicative of sleep style evasion)
T1083 checks_recent_files: Attempt to check recently opened files through registry

Command and Control

T1071.001 office_exploit_http: The document exhibits suspicious behaviour (performs HTTP requests)
T1071.001 network_cnc_http: Suspicious HTTP traffic
T1071.004 office_exploit_dns: The document exhibits suspicious behaviour (performs DNS requests)
T1071.001 network_http: Performs HTTP requests
T1071.001 wininet_https: Performs HTTP/HTTPS requests using WinInet

Other

yara_rules: Static rules
suricata_alert: Malicious traffic detected
networkdyndns_checkip: Connects to a Dynamic DNS domain
creates_exe: Creates executable files in the file system
suspicious_process_network: Unusual process network activity detected
unexpected_exception: Unexpected exception
office_suspicious_data: Office file contains suspicious data
get_policy_info: Retrieves information about a Policy object
antisandbox_check_graphics_card: Uses CreateDXGIFactory, potentially to detect graphics card

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