Managed XDR

tern.rtf — malware analysis report

File info

Filename
tern.rtf
File type
Rich Text Format data, version 1, unknown character set
File size
3.5 MB
First seen
Last seen

Environment

win7/x64 en

Hashes

SHA1
0b594a3ea9750aaa66fa8414627d239e69cb31b4
SHA256
350ca1841e1c63c93190cb11c4aa49890df4ab1b03cd503fc0b36db1da5a78ed
MD5
95f6f678eca02a514bb309fc2b2d42e7

Signatures

Execution

T1203 exploit_CVE_2017_11882: Exploits CVE-2017-11882 vulnerability
T1059.001 suspicious_powershell: Creates suspicious PowerShell process
T1203 office_write_exe: Office document dropped an executable file
T1059.001 suspicious_process: Spawns a suspicious process
T1059.003 suspicious_process: Spawns a suspicious process
T1559.001 com_exec: Execution of Win32_Process.Create COM Method

Persistence

T1574.011 persistence_services: Modifies Services registry key
T1543.003 persistence_services: Modifies Services registry key

Privilege Escalation

T1574.011 persistence_services: Modifies Services registry key
T1543.003 persistence_services: Modifies Services registry key
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

T1562 dep_disable: Disables DEP
T1497 debugs_self: Creates a process and debugs it
T1574.011 persistence_services: Modifies Services registry key
T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1497 checks_firmware: Attempts to read firmware information (potentially for evasion)
T1497.001 antisandbox_script_timer: Detected script timer window (indicative of sleep style evasion)
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
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

T1552 cookie_files: Accesses cookie files
T1555.003 cookie_files: Accesses cookie files

Discovery

T1497 debugs_self: Creates a process and debugs it
T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1497 checks_firmware: Attempts to read firmware information (potentially for evasion)
T1497.001 antisandbox_script_timer: Detected script timer window (indicative of sleep style evasion)
T1497.003 antisandbox_sleep: The process attempted to slow down analysis
T1083 checks_recent_files: Attempt to check recently opened files through registry
T1082 checks_firmware: Attempts to read firmware information (potentially for evasion)

Other

yara_rules: Static rules
office_embedded: Office document contains embedded executable file(s)
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
create_rpc_bindings: Creates RPC connection
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