Managed XDR

vtdl_ddhs68a6 — malware analysis report

File info

Filename
vtdl_ddhs68a6
File type
Composite Document File V2 Document, Little Endian, Os: Windows, Version 10.0, Code page: 1252, Author: NGUYEN, Last Saved By: george, Name of Creating Application: Microsoft Excel, Create Time/Date: Wed Dec 4 06:58:23 2013, Last Saved Time/Date: Wed Mar 13 04:59:17 2024, Security: 0
File size
1.2 MB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
3895f2fbcb3913b6b12fdb7eb30d7ca35703ff5d
SHA256
29fbfd279c64d951dea44e9024990f22da96b1f6c67788be54b4ab6f1dda3dab
MD5
fdec82d8be6ee5249c48e7ffa8034406

Signatures

Initial Access

T1192 html_urls: HTML-document downloads a file

Execution

T1064 office_macros: The document contains macroses (total: 4)
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

T1027 office_macros_entropy: The document contains a macro with high entropy (a possible sign of obfuscation)
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
T1064 office_macros: The document contains macroses (total: 4)
T1064 office_macros_autoexec: The document contains an auto-start macro
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

T1083 checks_recent_files: Attempt to check recently opened files through registry
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
creates_doc: Creates (office) documents in the file system
office_summary: The document contains suspicious metadata
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