Managed XDR

word-brazil.rtf — malware analysis report

File info

Filename
word-brazil.rtf
File type
Rich Text Format data, version 1, unknown character set
File size
3.8 MB
First seen
Last seen

Environment

win7/x64 en

Hashes

SHA1
5aaed627ef3b603acd4f79594c82a4a2271f26d4
SHA256
d35b4899b61588fb1a38988992964c6c4c9eff23329b7dadef21c0bf3f67f46d
MD5
b1b82e7294b1d8892a2f0d9fcc977c10

Signatures

Execution

T1203 exploit_CVE_2017_11882: Exploits CVE-2017-11882 vulnerability
T1203 office_write_exe: Office document dropped an executable file
T1059.003 suspicious_process: Spawns a suspicious process

Persistence

T1574 dropper_dll: Creates DLL, which is then loaded into the process

Privilege Escalation

T1574 dropper_dll: Creates DLL, which is then loaded into the process
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 checks_firmware: Attempts to read firmware information (potentially for evasion)
T1574 dropper_dll: Creates DLL, which is then loaded into the process
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

T1083 checks_recent_files: Attempt to check recently opened files through registry
T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1497 checks_firmware: Attempts to read firmware information (potentially for evasion)
T1135 server_share_info: Retrieves information about each shared resource on a server
T1082 checks_firmware: Attempts to read firmware information (potentially for evasion)

Command and Control

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

Other

office_embedded: Office document contains embedded executable file(s)
modifies_certs: Attempts to generate or modify system certificates
copies_self: Creates a copy of itself
creates_exe: Creates executable files in the file system
process_crashed: One of the processes has failed
unexpected_exception: Unexpected exception
valid_authenticode: The digital signature has been verified
create_rpc_bindings: Creates RPC connection
has_pdb: This executable file has a PDB path
creates_suspended_process: Creates suspended process
get_policy_info: Retrieves information about a Policy object
test_check_service: Starts services
antisandbox_check_graphics_card: Uses CreateDXGIFactory, potentially to detect graphics card
pe_overlay: PE file contains overlay
yara_rules: Static rules