Managed XDR

c-users-user-desktop-attachment.xls — malware analysis report

File info

Filename
c-users-user-desktop-attachment.xls
File type
Composite Document File V2 Document, Little Endian, Os: Windows, Version 6.1, Code page: 936, Author: Administrator, Last Saved By: s, Create Time/Date: Mon Feb 24 08:48:26 2020, Last Saved Time/Date: Mon Sep 6 08:49:16 2021, Security: 0
File size
360 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
f9b640cbedb2e85a1762a619e3e498d3a813e8ce
SHA256
23c3a061c7475a2a6716035710012b1f34d23b125066c64b571d3bc8d9b3fb61
MD5
277271999fe62e4b5e01fd03e11ac7cd

Signatures

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

T1564 office_vba_stomping: VBA Stomping was detected in the document (the VBA source code and P-code are different)
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

Discovery

T1497 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining
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
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
checktokenmembership: Checks user token with CheckTokenMembership call