Managed XDR

lsna-osd-call-notes.msg — malware analysis report

File info

Filename
lsna-osd-call-notes.msg
File type
Composite Document File V2 Document, No summary info
File size
1.5 MB
First seen
Last seen

Environment

w10/x64 en

Hashes

SHA1
e01c7bbea5552868ea91886e71f89c82d0049568
SHA256
eeb381f26c3890d0b5bf6ac30eb98986a43da212d9a2165af7acabe43a923016
MD5
ebbac25d9a31185795191f8af12d7721

Signatures

Execution

T1203 adobe_crash: Acrobat Reader process crashes (failed exploitation of a vulnerability is possible)
T1047 antivm_wmi: Uses WMI to detect virtual environment
T1047 has_wmi: Executes one or several WMI requests
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
T1055 injection_failed: The attempt to inject into a process has failed

Defense Evasion

T1497.001 antivm_wmi: Uses WMI to detect virtual environment
T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers
T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1497.001 antivm_generic_productname: Checks system product name in registry, possibly for anti-virtualization
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process
T1055 injection_failed: The attempt to inject into a process has failed

Credential Access

T1555.004 windows_credential_manager: Acquire credentials from the Windows Credential Manager

Discovery

T1497.001 antivm_wmi: Uses WMI to detect virtual environment
T1082 has_wmi: Executes one or several WMI requests
T1057 has_wmi: Executes one or several WMI requests
T1518 locates_browser: Attempts to identify where browsers are installed
T1497 evasion_printers: Attempts to detect Sandbox by exploring existing printers
T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1497.001 antivm_generic_productname: Checks system product name in registry, possibly for anti-virtualization
T1083 checks_recent_files: Attempt to check recently opened files through registry

Command and Control

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

Other

suspicious_pdf: PDF file with suspicious content
network_bind: Starts servers listening at None
pdf_page: Contains only one page
process_crashed: One of the processes has failed
pdf_compressed_stream: Contains an object with compressed stream
creates_suspended_process: Creates suspended process
break_limit_exceeded: Warning: function calls limit has been exceeded
suspicious_network_port: Performs TCP or UDP request to non-standard port
test_check_service: Starts services
suspicious_pdf_link: PDF file with suspicious hyperlink or content
office_links: Office file contains external links