Malicious PDF — malware analysis report

Static analysis result for SHA-256 efe3fdf2e074fa39…

MALICIOUS

PDF

42.1 KB Created: 2020-05-19 16:05:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5a6ceb03952689c6b01a90500d19cf6b SHA-1: a6f0b3413c6cfa3022b9d68dfa0f1fd7c0e60437 SHA-256: efe3fdf2e074fa39fedd67df26394c3634cda7c4e61082c8d6c7b1ec8835313b
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 point to similarly structured URLs on different domains. This pattern is indicative of a link farm or a method to distribute malicious content across multiple sites. The document body itself contains garbled text and what appears to be metadata from the wkhtmltopdf tool, suggesting it was programmatically generated to host these links. 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://lancasterec.com/uploads/1/3/0/6/130620620/130620620.html#la+pelicula+de+scarface+tony+montana
    • http://brooklynbraids.com/uploads/1/3/0/7/130739674/jenam_pitevotitip_lefevilakeru.pdf
    • http://alanduckworthart.com/uploads/1/3/0/4/130488217/nefukola-kiwifusip-tanemimadigale-vugubumibodet.pdf
    • http://heartfullofstars.net/uploads/1/3/0/6/130621964/9347476.pdf
    • http://icingbakedgoods.com/uploads/1/3/0/6/130620758/05bdd9fdb8.pdf
    • http://uapibetaphi.com/uploads/1/3/0/4/130476454/581364d90aa.pdf
    • http://bondellebrandingco.com/uploads/1/3/0/7/130775150/6707912.pdf
    • http://adamstrucking.info/uploads/1/3/1/6/131637333/gujinebur_pawedoj.pdf
    • http://marketingforgrinders.net/uploads/1/3/0/2/130289565/3752690.pdf
    • http://zoes-strictly-xmas.org/uploads/1/3/0/7/130776564/narafubew-fazonetasapu-bemavanesa-naxiwu.pdf
    • http://thedrew09.com/uploads/1/3/0/5/130588987/pegajuzojin-luxixixuvujo-rudazonavi.pdf
    • http://perrydisetumblers.com/uploads/1/3/0/5/130551362/3305842.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_off000076c0.bin
0c2e480455592cc60af742c04efe2641e554bc2409a1f60751057fa5f55e461a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76C0 11388 bytes

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