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

Static analysis result for SHA-256 72f03af6785643ec…

MALICIOUS

Office (OLE) / .DOC

531.0 KB Created: 2020-12-02 15:58:00 Authoring application: Microsoft Office Word
MD5: b9564f6be5006ca0f84cdeb68d1a2142 SHA-1: 0e4478e0a6f1fb3f36bf11fc43ce5a714f948a5e SHA-256: 72f03af6785643ec5f8da65729d056951be7331130c5d28167baa2a771d6f38f
84 Risk Score

Malware Insights

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

The sample is a malicious OLE document that references Windows Script Host and contains embedded URLs. Although VBA macros could not be extracted, the presence of an auto-executing VBA function (Document_Open) that uses GetObject indicates an attempt to execute code. This strongly suggests the document is designed to lure the user into downloading and executing a second-stage payload from one of the provided URLs, likely via spearphishing.

Heuristics 4

  • Reference to Windows Script Host high SC_STR_WSCRIPT
    Reference to Windows Script Host
  • 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.
  • Unsupported Office format for VBA extraction info OFFICE_FORMAT_UNSUPPORTED
    olevba could not extract VBA macros (AssertionError); format-agnostic byte-level scans still ran. Likely legacy, encrypted, or malformed OLE/OOXML — re-scanning the same bytes will yield the same outcome.
  • 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://immobiliere-monio.com/cms/lib/Slim/Exception/6vywr0yn.php
    • https://helden-fuers-herz.de/wp-content/uploads/2020/01/u0ACBqT2Uy.php
    • http://1023.node3.isx.dk/wp-includes/js/jquery/ui/FJySGmscIlZP.php
    • https://vipchainresort.com/tgDqb07X2dj3r.php
    • http://pralserwis.hts-targatz.de/js/kcfinder/themes/dark/36AbZeYcEWke4xj.php
    • https://buy.manairge.com/img/news/video/yoKHoSxL8p1.php
    • https://sapunuri.samargelim.ro/phpThumb/new_cache/4/40/gMnzaQ7Ge.php
    • http://schemas.openxmlformats.org/drawingml/2006/main
    • http://www.w3.org/1999/XSL/Transform

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