Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae5608e2bd0cda90…

MALICIOUS

PDF

43.2 KB Created: 2020-03-10 02:00:40 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 82c9b7376f4f4838d910343208d66ff7 SHA-1: 402472efecd6cbdefeb707c4eef69f83b3f5c474 SHA-256: ae5608e2bd0cda90fac72da6e9bb22331be11ec8924f9353adc88cddbcecaa5c
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of external links, many of which are structured as SEO-optimized links pointing to PDF documents. The document body contains text that appears to be a lure, referencing 'Software architecture design patterns ppt', and includes a primary external URI pointing to a similar-looking HTML file. This suggests a link farm or phishing campaign designed to direct users to potentially malicious content hosted on various domains.

Heuristics 3

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://thefivemilliondollarbook.stefanaarnio.com/uploads/1/3/0/6/130621019/130621019.html#software+architecture+design+patterns+ppt
    • http://naraxis.com/uploads/1/3/0/6/130640062/7885228.pdf
    • http://jeffhoweandco.com/uploads/1/3/0/4/130491488/jegepozivusek-buneb-jevilibige.pdf
    • http://e-junkie.us/uploads/1/3/0/5/130541271/dc42b.pdf
    • http://citizenimmigrant.com/uploads/1/3/0/2/130270956/9636204.pdf
    • http://mytriplec-boutique.com/uploads/1/3/0/6/130622042/wuvapu.pdf
    • http://4stormsurvival.com/uploads/1/3/0/7/130775495/zuzanet.pdf
    • http://axar-cars.com/uploads/1/3/0/5/130545021/fa469598.pdf
    • http://toldoshorta.com/uploads/1/3/0/5/130588830/8c3afecc232325f.pdf
    • http://makingmusicmodular.com/uploads/1/3/0/7/130776735/dubenovatupe_lifaku.pdf
    • http://clavestore.com/uploads/1/3/0/7/130739619/7712.pdf
    • http://www.aalklatreklubb.com/uploads/1/3/0/4/130476516/c5d47d.pdf
    • http://robynseyeview.com/uploads/1/3/0/3/130323302/3744730.pdf
    • http://www.readysetflye.com/uploads/1/3/0/4/130488158/162945.pdf
    • http://www.cherryblossomantiques.com/uploads/1/3/0/5/130538956/muwubimutekulapujew.pdf
    • http://vppastoralco.com/uploads/1/3/0/8/130873735/dilege_zupimup_defizapagu.pdf
    • http://www.edroidnews.com/uploads/1/3/0/7/130776865/luromebosibo-nuzifegexul-zuduw.pdf
    • http://rainbowrealms.com/uploads/1/3/0/6/130604336/bipikavajijemejexeko.pdf
    • http://snmfineart.com/uploads/1/3/0/2/130287890/nezabom.pdf
    • http://www.thriftstorehemet.com/uploads/1/3/0/7/130739656/18890.pdf
    • http://yourfavoritepantry.com/uploads/1/3/0/7/130775655/4419081.pdf
    • http://myosotisdesigns.com/uploads/1/3/0/9/130969357/tudusinixe-xozixi-mejopix.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000081f6.bin
98095122dca2addf1350f8484d185888adcc77449edf1636b39527923e8974cb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81F6 7468 bytes

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