Managed XDR

vtdl_v5bcwum0 — malware analysis report

File info

Filename
vtdl_v5bcwum0
File type
Composite Document File V2 Document, Little Endian, Os: Windows, Version 10.0, Code page: 1252, Author: Vanthu, Last Saved By: Administrator, Name of Creating Application: Microsoft Excel, Last Printed: Wed Jan 17 04:34:34 2024, Create Time/Date: Wed Jan 17 04:05:05 2024, Last Saved Time/Date: Mon Jan 22 22:35:35 2024, Security: 0
File size
102.5 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
c8566926ed19779f38e4483bb23bd39119f816c7
SHA256
c893cc7e1f162be1a263a1367637ddfea00799b1c31419dd5797276ae535e998
MD5
eec11540ab9036ccb0cbd43bfa828154

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