Managed XDR

vtdl_072ex_84 — malware analysis report

File info

Filename
vtdl_072ex_84
File type
Composite Document File V2 Document, Little Endian, Os: Windows, Version 6.2, Code page: 1252, Author: Admin, Last Saved By: LeNguyen, Name of Creating Application: Microsoft Excel, Last Printed: Mon Oct 30 08:31:29 2023, Create Time/Date: Wed Jun 2 02:28:00 2021, Last Saved Time/Date: Sat Jan 20 02:55:46 2024, Security: 0
File size
4.5 MB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
8fefbef3d780bc9437909aba5a1d8c6c6297cc3e
SHA256
0a733c65f1c87cbf3e3e2c4d972807886d67ef0865eee0c78d28a52dc7cb9320
MD5
a532b9ad3af6091c21046c6ca10a60e1

Signatures

Execution

T1064 office_macros: The document contains macroses (total: 2)
T1064 office_macros_autoexec: The document contains an auto-start macro
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

T1096 persistence_ads: Creates Alternate Data Stream (ADS)
T1497 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining
T1027 office_macros_entropy: The document contains a macro with high entropy (a possible sign of obfuscation)
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process
T1064 office_macros: The document contains macroses (total: 2)
T1064 office_macros_autoexec: The document contains an auto-start macro

Discovery

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
creates_suspended_process: Creates suspended process
get_policy_info: Retrieves information about a Policy object
test_check_service: Starts services
office_links: Office file contains external links
antisandbox_check_graphics_card: Uses CreateDXGIFactory, potentially to detect graphics card
checktokenmembership: Checks user token with CheckTokenMembership call