Malicious PDF — malware analysis report

Static analysis result for SHA-256 c570792e570e3561…

MALICIOUS

PDF

32.4 KB Created: 2020-05-14 00:45:42 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 7b0de9b7c3bcbf1b01b92516458bba8d SHA-1: ad467b2e3a365141717137873e089927438eecca SHA-256: c570792e570e3561132f3050b8cf0739a1abcdbeabf06b6e8361fa1f0590d5b3
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, a technique often used for SEO poisoning or to redirect users to malicious sites. The document body, though heavily obfuscated, contains a URL that appears to be a lure for 'cute birthday cards templates free'. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external links, suggesting a link farm or redirection scheme. No scripts were extracted from this sample.

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://bernardobellostudio.com/uploads/1/3/1/8/131857590/131857590.html#cute+birthday+cards+templates+free
    • http://lashextendemporium.com/uploads/1/3/1/4/131453902/zekogogat.pdf
    • http://ndtscan.eu/uploads/1/3/0/2/130291441/dipesigolojipaz.pdf
    • http://impactforestry.net/uploads/1/3/0/8/130873976/8197524.pdf
    • http://elijahsway.com/uploads/1/3/0/6/130639385/pelaxubekejir_pokafuge_roxulonoduziz_befowum.pdf
    • http://mycoolidea.net/uploads/1/3/0/6/130620789/6658318.pdf
    • http://uszagna.com/uploads/1/3/1/0/131070867/3709139.pdf
    • http://goldentrianglerc.org/uploads/1/3/0/7/130740260/wusolapubisoz.pdf
    • http://zerionstore.com/uploads/1/3/1/3/131381531/lidamanuk_jabageravipeda_zumowu.pdf
    • http://dpamedia.net/uploads/1/3/0/8/130813511/zefofurogafixoxo.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_off000054f0.bin
4b768b277735d5142a2ba095946bf4cc138a4dd97085d11d2342c8f918bb6069		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54F0 9800 bytes

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