Malicious PDF — malware analysis report

Static analysis result for SHA-256 cdac54e60b5fc455…

MALICIOUS

PDF

36.6 KB Created: 2020-04-02 04:22:05 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 7b576fa2fce299f3fd0aed45ee93aa91 SHA-1: fc2083d3b6980db554f4aa11901339e863e81d91 SHA-256: cdac54e60b5fc4558ea902d00ce6c92ba4d8057cbfee4ca8243ef04582ae3c35
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body, though malformed, contains text related to 'Physics of future michio kaku pdf', suggesting a lure to potentially malicious or SEO-spam content. The primary attack pattern involves redirecting users to a vast network of external PDF files hosted on numerous 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://cyclebavaria.com/uploads/1/3/1/3/131384284/131384284.html#physics+of+future+michio+kaku+pdf
    • http://winenswine.com/uploads/1/3/0/7/130739247/sovowudiludupa_nolotejemez.pdf
    • http://chadjohnsonteacher.com/uploads/1/3/0/7/130738512/fofipogik.pdf
    • http://alevelphysicsrevision.com/uploads/1/3/0/3/130312972/bb32e07.pdf
    • http://espacocuidarbh.com/uploads/1/3/0/6/130620537/gikolupavimesop.pdf
    • http://arianamcbride.com/uploads/1/3/1/0/131070722/c273b4c8a67.pdf
    • http://truuthbetold.com/uploads/1/3/0/2/130289266/a688727a62e35fd.pdf
    • http://cmma2017.info/uploads/1/3/0/6/130605373/pezara.pdf
    • http://okkcheers.com/uploads/1/3/0/6/130604327/nixiva.pdf
    • http://reflectionsgr.com/uploads/1/3/0/5/130543065/f232f49a0e131b.pdf
    • http://adishfortheking.com/uploads/1/3/0/7/130738861/8179585.pdf
    • http://drhickok.com/uploads/1/3/0/6/130621279/xazisepinixuji_kopilo.pdf
    • http://theclementcanopysg.com/uploads/1/3/0/5/130589415/jajujozebovesa.pdf
    • http://studioeightbuildingdesign.net/uploads/1/3/1/3/131380485/fojija.pdf
    • http://irondogtrailers.com/uploads/1/3/0/6/130621296/ecc24ad8edf8.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_off000068df.bin
c387feadf36308f0e30b2213ef587060bca7ad4ea909d0bb235dc2b17826c100		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68DF 7624 bytes

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