Managed XDR

vtdl_k_u5931s — malware analysis report

File info

Filename
vtdl_k_u5931s
File type
Composite Document File V2 Document, Little Endian, Os: Windows, Version 6.1, Code page: 936, Author: gs018, Name of Creating Application: Microsoft Excel, Last Printed: Tue Jul 13 10:17:04 2021, Create Time/Date: Sat Sep 16 00:00:00 2006, Last Saved Time/Date: Fri Jul 22 03:36:56 2022, Security: 0
File size
54 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
1f136dbdd7ba85066c819c94402f00968851c6b8
SHA256
637bf3316cc6d545337e63442a4581af6b19e077593865b22de2bee8a5ea9c5a
MD5
fc2ffb977ebee2bb82e564f54f79de28

Signatures

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

T1564 office_vba_stomping: VBA Stomping was detected in the document (the VBA source code and P-code are different)
T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1497 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process

Discovery

T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1497 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining
T1082 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining
T1083 checks_recent_files: Attempt to check recently opened files through registry

Other

yara_rules: Static rules
office_summary: The document contains suspicious metadata
create_rpc_bindings: Creates RPC connection
break_limit_exceeded: Warning: function calls limit has been exceeded
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