Managed XDR

4.xls — malware analysis report

File info

Filename
4.xls
File type
Composite Document File V2 Document, Little Endian, Os: Windows, Version 10.0, Code page: 936, Title: Failure Mode and Effects Analysis, Author: David A Matejka, Keywords: DFMEA; PFMEA, Last Saved By: Ming Xu, Name of Creating Application: Microsoft Excel, Last Printed: Wed Sep 5 01:47:40 2018, Create Time/Date: Wed Aug 4 22:09:04 1999, Last Saved Time/Date: Fri Jun 27 00:20:05 2025, Security: 0
File size
610.5 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
87f26143b2f423bdc1835c121b030f2944a544d8
SHA256
12a6c30248f790edc5513e4f25df5be3757c4f223b431ac2c76e8cb743d5bbaf
MD5
03a04a49e3e14be88bf72144049f273b

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
T1106 susp_callbacks: Suspicious usage of some WinAPI with callbacks

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 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
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

Credential Access

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

Discovery

T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
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
office_summary: The document contains suspicious metadata
break_limit_exceeded: Warning: function calls limit has been exceeded
error_drawtext: An error occured while executing the file
get_policy_info: Retrieves information about a Policy object
test_check_service: Starts services
office_links: Office file contains external links
antisandbox_check_graphics_card: Uses CreateDXGIFactory, potentially to detect graphics card