Managed XDR

inv4092401.docx — malware analysis report

File info

Filename
inv4092401.docx
File type
Microsoft Word 2007+
File size
719.4 KB
First seen
Last seen

Environment

w10/x86 en

Hashes

SHA1
9d4b87a8912e240eeb0965dd911ca2f68d276a36
SHA256
2b228c12ad975bb84cf44897a37d06f91a9a5c285770abcb470715591636b2db
MD5
162f8b717590ddb233d300cffe6dfac2

Signatures

Execution

T1203 exploit_CVE_2017_11882: Exploits CVE-2017-11882 vulnerability
T1059 suspicious_process: Spawns a suspicious process
T1559 suspicious_process: Spawns a suspicious process
T1203 office_exploit_http: The document exhibits suspicious behaviour (performs HTTP requests)
T1064 office_macros_suspicious: Document contains suspicious macro
T1064 office_macros: The document contains macro
T1064 office_macros_strings: Feature lines found in document macro
T1204.002 office_vb_load: Microsoft Office is loading VB DLL files (macros usage indicator)
T1204.002 office_com_load: Microsoft Office loads COM DLL files (indicator of COM usage in macros)

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

T1221 office_attached_template: Office file downloads a template from the Internet
T1027.002 unnamed_memory_regions: Code was executed in unnamed regions
T1497 office_security_check: Checks Microsoft Office security settings
T1064 office_macros_suspicious: Document contains suspicious macro
T1064 office_macros: The document contains macro
T1064 office_macros_strings: Feature lines found in document macro
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_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1497.001 antisandbox_script_timer: Detected script timer window (indicative of sleep style evasion)
T1027 office_macros_entropy: The document contains a macro with high entropy (a possible sign of obfuscation)

Credential Access

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

T1497 office_security_check: Checks Microsoft Office security settings
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)
T1071.004 office_exploit_dns: The document exhibits suspicious behaviour (performs DNS requests)
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

yara_rules: Static rules
creates_exe: Creates executable files in the file system
multiple_useragents: Uses more than one unique User-Agent
suspicious_process_network: Unusual process network activity detected
creates_doc: Creates (office) documents in the file system
unexpected_exception: Unexpected exception
office_summary: The document contains suspicious metadata
creates_suspended_process: Creates suspended process
break_limit_exceeded: Warning: function calls limit has been exceeded
message_box: Displays a message
suspicious_network_port: Performs TCP or UDP request to non-standard port
test_check_service: Starts services
writes_data: Writes big amount of data to disk
suricata_alert: Malicious traffic detected
dotnet_suspicious_cultureidentifier: Dotnet program contains invalid CultureIdentifier