Managed XDR

vtdl_1752178985_lcz6x6u1 — malware analysis report

File info

Filename
vtdl_1752178985_lcz6x6u1
File type
Composite Document File V2 Document, Little Endian, Os: Windows, Version 6.2, Code page: 936, Author: zzx, Last Saved By: cy4_zzx, Name of Creating Application: Microsoft Excel, Last Printed: Sat Sep 18 07:16:23 2021, Create Time/Date: Wed Apr 6 00:03:53 2016, Last Saved Time/Date: Sat Sep 18 07:16:31 2021, Security: 0
File size
62.5 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
f283fd58fef5a23a6367430a111daa5c45e54288
SHA256
d6f5effd865f2e95ddfcc8ea72771e8a2191e41d5b53a251ca909ca94483e78a
MD5
b45cc590632861a35cbf74bf544ae7ad

Signatures

Execution

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

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
T1497.002 async_mouse: Watches for mouse clicks using GetAsyncKeyState to detect human activity
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
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