Managed XDR

vtdl_c9u4nunn — malware analysis report

File info

Filename
vtdl_c9u4nunn
File type
Composite Document File V2 Document, Little Endian, Os: Windows, Version 6.1, Code page: 1252, Author: lenovo, Last Saved By: lenovo, Name of Creating Application: Microsoft Excel, Create Time/Date: Sat Mar 16 08:19:37 2024, Last Saved Time/Date: Sat Mar 16 08:20:38 2024, Security: 0
File size
25 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
1c12ac5b173ba17e391403994f40d82fc4861dbf
SHA256
b8303b15269fa98d532a608dcdd0edf26de761712f36a320cc5fe515b07009f7
MD5
49a70283b3da965f6bef3f24d13c0f55

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