Managed XDR

microsoft.xls — malware analysis report

File info

Filename
microsoft.xls
File type
Composite Document File V2 Document, Little Endian, Os: Windows, Version 5.1, Code page: 1200, Author: Whoa, Last Saved By: Whoa, Name of Creating Application: Microsof, Create Time/Date: Tue Feb 28 22:13:51 2023, Last Saved Time/Date: Tue Feb 28 22:53:52 2023, Security: 0
File size
28 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
f548dd3d4d0ba8bd44f451a1bb3f5780cdc50165
SHA256
b7920db4ea0782c38842c2b2c0d44c7593683e91f4e08988ebf3bd26f3c67441
MD5
784ff9b67b1a8810a4f5c462cffac3a1

Signatures

Execution

T1059.001 suspicious_powershell: Suspicious document behaviour (creates powershell process)
T1059.001 suspicious_process: Spawns a suspicious process
T1204.002 office_vb_load: Microsoft Office is loading VB DLL files (macros usage indicator)
T1064 office_macros: The document contains macroses (total: 5)
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
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
T1064 office_macros: The document contains macroses (total: 5)
T1064 office_macros_autoexec: The document contains an auto-start macro

Discovery

T1518 locates_browser: Attempts to identify where browsers are installed
T1082 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining
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

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