Managed XDR

spreadsheet.xls (ZLoader) — 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: Fri Mar 5 16:34:39 2021, Last Saved Time/Date: Tue Jun 1 07:11:20 2021, Security: 0
File size
857.5 KB
First seen
Last seen

Environment

win7/x86 en

Hashes

SHA1
f4065b837fdc776cae03b8ae703f3fc6731c0d65
SHA256
cfc301ba6979de0f2347ea715b8c80352ae3685b0be395a04c5d3ee46676ddc3
MD5
edb61e4ceb1fc57ab30dad2dbc7da669

Malwares

  • ZLoader

Signatures

Execution

T1064 office_macros_hidden: Document contains suspicious Excel 4.0 macro
T1203 office_exploit_crash: Microsoft Office process crashes (failed exploitation of a vulnerability is possible)
T1203 office_start_thread: Allocates memory and starts a thread inside an office application
T1064 office_macros_suspicious: Document contains suspicious macro
T1064 office_macros: The document contains macroses (total: 3)
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

T1064 office_macros_hidden: Document contains suspicious Excel 4.0 macro
T1064 office_macros_suspicious: Document contains suspicious macro
T1497 antidbg_query_process: Checks if the process is being debugged (ProcessDebugPort)
T1064 office_macros: The document contains macroses (total: 3)
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

Credential Access

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

Discovery

T1497 antidbg_query_process: Checks if the process is being debugged (ProcessDebugPort)
T1083 checks_recent_files: Attempt to check recently opened files through registry

Other

yara_rules: Static rules
office_summary: The document contains suspicious metadata
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

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