Managed XDR

zero-click.rtf (Follina) — malware analysis report

File info

Filename
zero-click.rtf
File type
Rich Text Format data, version 1, unknown character set
File size
47.8 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
40c00c5423cd886e1ebca39c173de60343c42f11
SHA256
590190ac09ef472a9df67470762ee8ed0baa4adc20b5992aaae630473b35ec2c
MD5
7450709da350f07333dc504e061a48be

Malwares

  • Follina

Signatures

Execution

T1203 exploit_CVE_2017_0199: Possible exploitation of CVE-2017-0199
T1204.002 office_vb_load: Microsoft Office is loading VB DLL files (macros usage indicator)

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 antivm_queries_computername: Retrieves the computer name
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 antivm_queries_computername: Retrieves the computer name
T1083 checks_recent_files: Attempt to check recently opened files through registry

Other

yara_rules: Static rules
create_rpc_bindings: Creates RPC connection
get_policy_info: Retrieves information about a Policy object
antisandbox_check_graphics_card: Uses CreateDXGIFactory, potentially to detect graphics card
checktokenmembership: Checks user token with CheckTokenMembership call

Related reports