Malicious Office (OLE) / .DOCX — malware analysis report

Static analysis result for SHA-256 382c7e5429e0a668…

MALICIOUS

Office (OLE) / .DOCX

317.5 KB Created: 2020-12-23 18:47:00 Authoring application: Microsoft Office Word
MD5: c6dcea39dc372b31101a825cbae8ef7e SHA-1: 1f30f04ad381c5736c363cf00abb9618a9d4cc91 SHA-256: 382c7e5429e0a66875f2600b0d32709e7d3b836fbb8328a42f94ecf11572029a
288 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The sample contains VBA macros, specifically a Document_Open macro that utilizes GetObject and Environ calls, indicating an attempt to execute code. The presence of obfuscated VBA code and references to Windows Script Host strongly suggest the macro is designed to download and execute a second-stage payload from one of the identified suspicious URLs. The ClamAV detection as 'Doc.Downloader.ChristmasGift-9845923-0' further supports this downloader functionality.

Heuristics 9

  • ClamAV: Doc.Downloader.ChristmasGift-9845923-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.ChristmasGift-9845923-0
  • Reference to Windows Script Host high SC_STR_WSCRIPT
    Reference to Windows Script Host
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • GetObject call high OLE_VBA_GETOBJ
    GetObject call
  • VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC
    Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
  • Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGE
    One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
  • VBA macros detected medium OLE_VBA_MACROS
    Document contains VBA macro code
  • Environ() call (env variable access) low OLE_VBA_ENVIRON
    Environ() call (env variable access)
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://wellnessway.co.za/wp-content/plugins/coming-soon-maintenance-mode-from-acurax/css/fonts/x90Pl1ipNVA22U.php
    • http://sypher.biz/nx3jY0Jl.php
    • https://GesDoc.fda.com.pe/wp-content/plugins/members/addons/members-acf-integration/bTXPjWEcG38.php
    • https://cnkmovil.com/wp-content/plugins/php-compatibility-checker/php52/vendor/egOIa0pQyQl3E.php
    • http://explainervideoz.com/wp-content/themes/twentyten/images/headers/aaorUbaTEVN8.php
    • http://penniesforsense.com/wp-content/plugins/penci-pennews-review/inc/templates/q3H69D5AKRPk.php
    • https://ecologi.in/wp-content/plugins/wordpress-seo/vendor_prefixed/guzzlehttp/OAQhv0DsS.php
    • https://mpcleaning.com.ng/bV7QVXR3xEb9K.php
    • https://www.blackoutthebox.com/wp-content/plugins/woocommerce/src/Admin/B9PqY5aXdcv.php
    • https://energeticpharma.com/wHkBRXop2.php
    • http://schemas.openxmlformats.org/drawingml/2006/main
    • http://www.w3.org/1999/XSL/Transform

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
d65a4f181764db415f3cee3994782f7e81458d16bfc92d495c44dbaeb67f16a1		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 51910 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 125 Chr/ChrW string-construction calls. Carved macro source contains an auto-exec entry point and execution/download terms.

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