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

Static analysis result for SHA-256 861c8839accd5db0…

MALICIOUS

Office (OLE) / .DOC

189.5 KB Created: 2020-12-16 14:31:00 Authoring application: Microsoft Office Word
MD5: 7dbd9eefeb6e9902b1784ad9b53557af SHA-1: 6b75b1b175bc80c254126b1b1a3bf4ca97775703 SHA-256: 861c8839accd5db00039005620924fa6cac3958ff511a560316cb660ea2fd4fe
250 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The sample contains VBA macros, including a Document_Open macro that utilizes GetObject, indicating an attempt to execute code upon opening. The presence of multiple unknown URLs suggests these are likely download locations for secondary payloads. The ClamAV detection of 'Doc.Downloader.ChristmasGift-9845923-0' further supports the downloader functionality.

Heuristics 8

  • 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.
  • 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://www.xaqan.co/wp-admin/6MhAB8xj.php
    • http://smileclothingofficial.com/AJEW0NzyHw48dR.php
    • https://yara2eatcheadle.co.uk/wp-content/plugins/codestar-framework/fields/background/0W5lSogzi.php
    • http://www.petro7.com.sa/focuson/wp-content/plugins/elementskit/compatibility/KaaNDKtIaX0sh.php
    • https://elitechauffeurservices.ro/wp-content/plugins/wordpress-seo/vendor/composer/Aa02pG3neWNo.php
    • https://azlan.design/images/works/ajfan/CpN6gSHvRZ.php
    • https://mkzone.com.ng/bootstrap-4.0.0-dist/css/d3bB2mPme2rN.php
    • http://myopenbank.jdosa.com/wp-content/plugins/custom-post-type-ui/images/wds_ads/8s0I8lzF0ahb6L.php
    • https://acreclothing.com/iKnc2KZYIRbSTX.php
    • http://schemas.openxmlformats.org/drawingml/2006/main
    • http://www.w3.org/1999/XSL/Transform
    • http://studyingincalifornia.free.fr/blog/wp-includes/SimplePie/Decode/HTML/M1QfrbH3jXFmX8U.php

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
bc66093577babfe452090037dc52dcb14e54c278231a534175f0223b420cb488		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 21668 bytes

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