Managed XDR

vtdl_n3644509 — malware analysis report

File info

Filename
vtdl_n3644509
File type
Composite Document File V2 Document, Little Endian, Os: Windows, Version 6.1, Code page: 936, Author: lypyf, Last Saved By: xhsw, Name of Creating Application: Microsoft Excel, Last Printed: Mon Jan 31 07:30:46 2022, Create Time/Date: Fri Aug 12 01:09:31 2016, Last Saved Time/Date: Sat Apr 30 01:56:54 2022, Security: 0
File size
55 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
50b7edea583fc40f75ef6938c28ac837b9509371
SHA256
4194d5bd9413dc5ec90ddd316bdcd0c2d98e8578d73d8b2d1b87e6eed2d146f4
MD5
a20e3ce6de7bb43e4c3e4abcf63a7971

Signatures

Execution

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

T1564 office_vba_stomping: VBA Stomping was detected in the document (the VBA source code and P-code are different)
T1497 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining
T1497.002 async_mouse: Watches for mouse clicks using GetAsyncKeyState to detect human activity
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 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining
T1497.002 async_mouse: Watches for mouse clicks using GetAsyncKeyState to detect human activity
T1082 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining

Other

yara_rules: Static rules
office_summary: The document contains suspicious metadata
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
checktokenmembership: Checks user token with CheckTokenMembership call