Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd4a7422ef66ca90…

MALICIOUS

PDF

33.7 KB Created: 2020-04-08 23:00:56 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 8d63c468ed95340a8c97c1eb11c492b5 SHA-1: 9359b60a817aea2e4a0b1418e880713051b438e7 SHA-256: bd4a7422ef66ca90fb7f21118a95998e629b030a5ebd117fa56c7731fd613dec
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 manipulation or to redirect users to malicious content. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass external PDF link farm, with the primary observed URL being http://breathofautumncounseling.org/uploads/1/3/0/5/130550914/vonipejapefitenafemi.pdf. The document body also contains a reference to 'Forza horizon 3 dev build', which may be a lure. 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://arterior.it/uploads/1/3/0/5/130551749/130551749.html#forza+horizon+3+dev+build
    • http://breathofautumncounseling.org/uploads/1/3/0/5/130550914/vonipejapefitenafemi.pdf
    • http://twinpalmsps.com/uploads/1/3/0/6/130620353/1866931.pdf
    • http://makingwhoopiepie.com/uploads/1/3/0/5/130588973/lajaginomuzefe_sivotivufuf.pdf
    • http://countrydaysmarket.com/uploads/1/3/0/9/130969628/1084406.pdf
    • http://rangersmusic.com/uploads/1/3/0/6/130621371/e743e11e21.pdf
    • http://bootcampback.com/uploads/1/3/0/8/130873902/2544635.pdf
    • http://drcounseling.com/uploads/1/3/0/5/130550782/3c928855ade.pdf
    • http://abbaautomotive.net/uploads/1/3/0/3/130323271/abe751fa23.pdf
    • http://countrywidepsychology.com/uploads/1/3/0/7/130739727/vegaxunanibamegoz.pdf
    • http://tudofeitoamao.com/uploads/1/3/1/4/131438002/kikawovaniwexe.pdf
    • http://keiltravel.com/uploads/1/3/0/2/130287502/gijez.pdf
    • http://semodeals.com/uploads/1/3/0/9/130969551/2663625f6c1.pdf
    • http://startkin.com/uploads/1/3/0/8/130813798/kubazeba.pdf
    • http://thecapecodgeekcon.com/uploads/1/3/0/4/130476555/3e83f094a4fca.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_off00005d2b.bin
d66b651da922f81ca4df97ab5db34dae93fb1884558e59ff9405d9482cb79026		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D2B 7272 bytes

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