Managed XDR

vtdl_w6__b_yh — malware analysis report

File info

Filename
vtdl_w6__b_yh
File type
Composite Document File V2 Document, Little Endian, Os: Windows, Version 6.1, Code page: 1252, Author: VienDong, Last Saved By: VienDong, Name of Creating Application: Microsoft Excel, Last Printed: Tue Jan 23 06:44:23 2024, Create Time/Date: Tue Apr 11 03:02:20 2023, Last Saved Time/Date: Tue Jan 23 06:44:41 2024, Security: 0
File size
78.5 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
7fe70eaeac9aaf73d2fc9fb91a8640699e84c9e9
SHA256
ca5284e3e303ffa33a1bf3db0ff83feac626ca61eaf7e400aea9f178b0d942ea
MD5
661c3442968a462ad3a9117649845df0

Signatures

Execution

T1204.002 office_vb_load: Microsoft Office is loading VB DLL files (macros usage indicator)
T1064 office_macros: The document contains macroses (total: 4)
T1064 office_macros_autoexec: The document contains an auto-start macro

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

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
T1027 office_macros_entropy: The document contains a macro with high entropy (a possible sign of obfuscation)
T1064 office_macros: The document contains macroses (total: 4)
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
T1083 checks_recent_files: Attempt to check recently opened files through registry
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
antisandbox_check_graphics_card: Uses CreateDXGIFactory, potentially to detect graphics card