Managed XDR

spreadsheet.xls — malware analysis report

File info

Filename
spreadsheet.xls
File type
Composite Document File V2 Document, Little Endian, Os: Windows, Version 6.2, Code page: 1252, Author: ucd01, Last Saved By: PC, Name of Creating Application: Microsoft Excel, Last Printed: Fri Mar 22 03:36:40 2024, Create Time/Date: Thu Apr 20 01:50:29 2023, Last Saved Time/Date: Fri May 3 07:56:00 2024, Security: 0
File size
469 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
385205ee9fa342bd410706391132611c0208ca0e
SHA256
4f7742ad36324b1b79d3098818f58320d2a5bd1e1e29d0a925528b62e7015d67
MD5
ff754b17280a118725a960c70fc8d811

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: 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

T1564 office_vba_stomping: VBA Stomping was detected in the document (the VBA source code and P-code are different)
T1064 office_macros: The document contains macroses (total: 5)
T1064 office_macros_autoexec: The document contains an auto-start macro
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process
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
T1027 office_macros_entropy: The document contains a macro with high entropy (a possible sign of obfuscation)

Credential Access

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

Discovery

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
T1083 checks_recent_files: Attempt to check recently opened files through registry

Other

yara_rules: Static rules
creates_doc: Creates (office) documents in the file system
office_summary: The document contains suspicious metadata
create_rpc_bindings: Creates RPC connection
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