Malicious PDF — malware analysis report

Static analysis result for SHA-256 51e01e597550a1cb…

MALICIOUS

PDF

40.8 KB Created: 2020-03-09 10:40:08 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 3f71f5df1d3d09eb4d63e1b08d993d4c SHA-1: 8e7da7f7355dc305d2b309981e8e73ca08b2b83d SHA-256: 51e01e597550a1cb1ea56247494bbc536b777c0abe07d6e67359ebd3be49d4ee
62 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, a common technique for SEO poisoning or phishing. The document body, though heavily obfuscated, contains references to 'Vte chest guidelines' and includes multiple URLs pointing to domains that host PDF files with numeric or generic slugs, suggesting a link farm or content-scraping operation. 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://ga65q.slpny.com/uploads/1/3/0/4/130435786/130435786.html#vte+chest+guidelines
    • http://cruisecatline.com/uploads/1/3/0/3/130313002/wisunazi.pdf
    • http://cakenetwork.us/uploads/1/3/0/5/130589460/sumelibexogozi.pdf
    • http://spelotheek.org/uploads/1/3/0/6/130604486/galipulun_gujuwov_ratopipigovewuv_pulanamunuk.pdf
    • http://flamingoisland.com.au/uploads/1/3/0/6/130603743/faxexiludifipuxif.pdf
    • http://www.backtoessentialoils.com/uploads/1/3/0/6/130621675/3eb4bbbef67f.pdf
    • http://scubeagency.com/uploads/1/3/0/3/130313190/7949971.pdf
    • http://vni3d.com/uploads/1/3/0/7/130776555/tewegojavapefed.pdf
    • http://yopcrealab.org/uploads/1/3/0/7/130776304/mokewubetevab-gunexumu-xupoxilukukav-fimupakejirid.pdf
    • http://nwm10.club/uploads/1/3/0/6/130620975/luludasomur.pdf
    • http://www.anniewhittaker.com/uploads/1/3/0/4/130435909/693580.pdf
    • http://aussiewoodfilms.com/uploads/1/3/0/9/130969423/xekireniselopumis.pdf
    • http://www.ogemahouse.net/uploads/1/3/0/6/130604550/zinozimelo.pdf
    • http://diversityforpresident.com/uploads/1/3/0/2/130287281/xepijad.pdf
    • http://www.enlistaction.com/uploads/1/3/0/5/130550672/4956301.pdf
    • http://blubloggs.com/uploads/1/3/0/8/130814078/e280a32a.pdf
    • http://www.welsociety.com/uploads/1/3/0/6/130621794/2681432.pdf
    • http://hackythoughts.com/uploads/1/3/0/5/130588437/87b3b808919b.pdf
    • http://www.bathsingforlife.org.uk/uploads/1/3/0/4/130489253/nokulaxerurajek.pdf
    • http://www.labellevolution.com/uploads/1/3/0/9/130969647/1679371.pdf
    • http://www.advancedshop.pro/uploads/1/3/0/5/130589322/niwujogodakas.pdf
    • http://ontariotreeservices.ca/uploads/1/3/0/5/130588606/0bf54d.pdf
    • http://courtneyscorner89.com/uploads/1/3/0/4/130476984/7143901.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_off000076b1.bin
6a916a834f04ffd0e08f3dbde34f0fa0ec5397b6c05104003bb457cf33388764		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76B1 7920 bytes

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