Managed XDR

vtdl_obyyxuml — malware analysis report

File info

Filename
vtdl_obyyxuml
File type
Composite Document File V2 Document, Little Endian, Os: Windows, Version 10.0, Code page: 1252, Author: Peter Cheng, Last Saved By: george, Name of Creating Application: Microsoft Excel, Last Printed: Fri Jan 5 05:31:30 2024, Create Time/Date: Thu May 12 12:21:40 2022, Last Saved Time/Date: Fri Mar 15 10:18:24 2024, Security: 0
File size
604.5 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
0f1cf7e5c63ad744254c8bd2780fa328844849e5
SHA256
c5e71c19a60a953cc4fc16f45b6a10aa9e1229097acf140b7bf5c824925b521c
MD5
af69bd259f336af8dfb55b79e4467912

Signatures

Execution

T1064 office_macros: The document contains macroses (total: 14)
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

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: 14)
T1064 office_macros_autoexec: The document contains an auto-start macro
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

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
creates_doc: Creates (office) documents in the file system
office_summary: The document contains suspicious metadata
create_rpc_bindings: Creates RPC connection
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