Managed XDR

vtdl_08s4fept — malware analysis report

File info

Filename
vtdl_08s4fept
File type
Composite Document File V2 Document, Little Endian, Os: Windows, Version 6.1, Code page: 1258, Author: Thanh An, Last Saved By: A, Name of Creating Application: Microsoft Excel, Last Printed: Mon Jan 15 09:43:04 2024, Create Time/Date: Tue Jan 10 03:31:48 2017, Last Saved Time/Date: Mon Jan 15 09:48:00 2024, Security: 0
File size
86.5 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
b89b2342211180431bb530e41b1218918395bcde
SHA256
e3a7ae332707fa00b1e61a57f078666f426d0bb4998f97f404ab5b6b6f7952ee
MD5
301b5d52fad2afa79741be0c9cf6eae3

Signatures

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
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process
T1064 office_macros: The document contains macroses (total: 4)
T1064 office_macros_autoexec: The document contains an auto-start macro

Credential Access

T1555.003 cookie_files: Accesses cookie files
T1552 cookie_files: Accesses cookie files

Discovery

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
T1135 server_share_info: Retrieves information about each shared resource on a server
T1497 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining

Other

yara_rules: Static rules
creates_exe: Creates executable files in the file system
office_summary: The document contains suspicious metadata
create_rpc_bindings: Creates RPC connection
break_limit_exceeded: Warning: function calls limit has been exceeded
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