Managed XDR

spreadsheet.xls — malware analysis report

File info

Filename
spreadsheet.xls
File type
Composite Document File V2 Document, Little Endian, Os: Windows, Version 10.0, Code page: 1252, Author: user, Last Saved By: user, Name of Creating Application: Microsoft Excel, Create Time/Date: Mon Apr 21 08:36:36 2025, Last Saved Time/Date: Tue Apr 22 13:11:46 2025, Security: 0
File size
76 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
6477b639dc8349e3401891feb5c37e5c01f6cc0d
SHA256
4e8b8495e5a90e1446e4f223e6dae55a76a68978bdeac72feb666b0f0296dc0e
MD5
b9d568a6b5c56667161fe44aaced4256

Signatures

Execution

T1203 office_runs_dll: Suspicious document behaviour (tries to execute dll file)
T1559 suspicious_process: Spawns a suspicious process
T1204.002 office_vb_load: Microsoft Office is loading VB DLL files (macros usage indicator)
T1204.002 office_com_load: Microsoft Office loads COM DLL files (indicator of COM usage in macros)
T1047 has_wmi: Executes one or several WMI requests

Persistence

T1574 dropper_dll: Creates DLL, which is then loaded into the process

Privilege Escalation

T1574 dropper_dll: Creates DLL, which is then loaded into the process
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

T1218.011 rundll_shell32: Uses ShellExec_RunDLL to run an executable file
T1574 dropper_dll: Creates DLL, which is then loaded into the process
T1497.003 antisandbox_idletime: Detects Windows Idle Time to determine the uptime
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process
T1070 stealth_window: A process created a hidden window
T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1497 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining

Credential Access

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

Discovery

T1057 process_interest: Enumerates processes
T1497.003 antisandbox_idletime: Detects Windows Idle Time to determine the uptime
T1135 server_share_info: Retrieves information about each shared resource on a server
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
creates_exe: Creates executable files in the file system
suspicious_process_network: Unusual process network activity detected
process_crashed: One of the processes has failed
office_summary: The document contains suspicious metadata
create_rpc_bindings: Creates RPC connection
creates_suspended_process: Creates suspended process
break_limit_exceeded: Warning: function calls limit has been exceeded
get_policy_info: Retrieves information about a Policy object
creates_in_programdata: Creates files in the ProgramData directory
test_check_service: Starts services
antisandbox_check_graphics_card: Uses CreateDXGIFactory, potentially to detect graphics card
checktokenmembership: Checks user token with CheckTokenMembership call
suricata_alert: Malicious traffic detected