Managed XDR

c-users-user-desktop-attachment.xls — malware analysis report

File info

Filename
c-users-user-desktop-attachment.xls
File type
Composite Document File V2 Document, Little Endian, Os: Windows, Version 4.0, Code page: 1252, Author: Joe Hartmann, Last Saved By: June 08, 1971, Name of Creating Application: Microsoft Excel, Last Printed: Mon May 12 11:31:06 1997, Create Time/Date: Mon May 12 11:33:53 1997, Security: 0
File size
40 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
ec71e1ad223a1036f21a07df7b4f5bbea993f27d
SHA256
55f03763fcfca003398c83736b4386958c7db882af3cf14b0d09a58b664199b3
MD5
f25a8680a17f6a4adc648d2816701c00

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: 4)
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 evasion_trustrecords: Attempts to detect Sandbox exploring trusted documents
T1497 windows_enumthread: Attempts to enumerate windows using EnumThreadWindows and SendMessage for text obtaining
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: 4)
T1064 office_macros_autoexec: The document contains an auto-start macro

Credential Access

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

Discovery

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
T1135 server_share_info: Retrieves information about each shared resource on a server
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
office_summary: The document contains suspicious metadata
create_rpc_bindings: Creates RPC connection
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