Managed XDR

xf.vir — malware analysis report

File info

Filename
xf.vir
File type
Composite Document File V2 Document, Little Endian, Os: Windows, Version 5.1, Code page: 949, Author: WORK, Name of Creating Application: Microsoft Excel, Create Time/Date: Thu Aug 21 14:26:22 2008, Last Saved Time/Date: Thu Aug 21 15:10:59 2008, Security: 0
File size
131.5 KB
First seen
Last seen

Environment

w10/x86 en

Hashes

SHA1
55d36539fa3579b3c4281cee48deaa478f145fbd
SHA256
4f49271bc9521e227830f34f5660c5166cf9079d0964b5c99d30990a69202236
MD5
b1d189be246dfdd6a86ff5d11bceb4df

Signatures

Execution

T1064 office_macros_hidden: Document contains suspicious Excel 4.0 macro
T1064 office_macros: The document contains macro
T1064 office_macros_autoexec: The document contains an auto-start macro
T1204.002 office_com_load: Microsoft Office loads COM DLL files (indicator of COM usage in macros)

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

T1064 office_macros_hidden: Document contains suspicious Excel 4.0 macro
T1064 office_macros: The document contains macro
T1064 office_macros_autoexec: The document contains an auto-start macro
T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1134 opens_thread_token: Opens the access token associated with a thread
T1134 opens_process_token: Opens the access token associated with a process

Credential Access

T1555.003 cookie_files: Accesses cookie files
T1555.004 windows_credential_manager: Acquire credentials from the Windows Credential Manager
T1552 cookie_files: Accesses cookie files

Discovery

T1083 checks_recent_files: Attempt to check recently opened files through registry
T1497 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents

Other

yara_rules: Static rules
office_summary: The document contains suspicious metadata
break_limit_exceeded: Warning: function calls limit has been exceeded
message_box: Displays a message
test_check_service: Starts services
writes_data: Writes big amount of data to disk