Managed XDR

security-brief-report.msg — malware analysis report

File info

Filename
security-brief-report.msg
File type
CDFV2 Microsoft Outlook Message
File size
779.5 KB
First seen
Last seen

Environment

w10/x86 en

Hashes

SHA1
c155cf8989374b870cab916bcbf5098a56f0f881
SHA256
36dbf119cb0cca52aed82ca3e69bbe09d96fa92f2831f8e14dc1bd1b6a5e9590
MD5
5255fd22105d234d77bf54e50fd966df

Signatures

Initial Access

T1192 html_urls: HTML-document downloads a file

Execution

T1203 office_exploit_creates_cmd: The document exhibits suspicious behaviour (creates a cmd.exe process)
T1204.002 office_com_load: Microsoft Office loads COM DLL files (indicator of COM usage in macros)
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

T1218 suspicious_cmdline: Executes a suspicious command
T1027.002 packer_polymorphic: Creates a modified copy of itself
T1218.011 rundll_shell32: Uses Control_RunDLL to run an executable file
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1140 unpacking_utilities: Uses Windows utilities to unpack data
T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1497.001 antivm_queries_computername: Retrieves the computer name
T1027.002 packer_entropy: Probably contains compressed or encrypted data
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

T1056.001 infostealer_keylogger: Keylogger (intercepts keystrokes)

Discovery

T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1518 locates_browser: Attempts to identify where browsers are installed
T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1497.001 antivm_queries_computername: Retrieves the computer name
T1083 checks_recent_files: Attempt to check recently opened files through registry

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
T1105 cmdline_curl: Uses curl utility for network data transferring
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
copies_self: Creates a copy of itself
create_process_failed: Could not start the process
office_suspicious_data: Office file contains suspicious data
creates_suspended_process: Creates suspended process
creates_in_programdata: Creates files in the ProgramData directory
test_check_service: Starts services
office_links: Office file contains external links
checktokenmembership: Checks user token with CheckTokenMembership call
suricata_alert: Malicious traffic detected