Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f9e1e39654aec8d…

MALICIOUS

PDF

46.8 KB Created: 2020-05-03 21:08:32 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 40bc1d914ad813eba2bbd213479e64ec SHA-1: b53bd481105da1fd844a48539599e6f71bb762cc SHA-256: 9f9e1e39654aec8d5e1bfe3083d2f208af32ab7cad4f4858c0b96598fb4e687e
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, a common technique for SEO spam and potentially malicious redirection. The document body, though heavily obfuscated, contains text related to 'Empire state college student degree planning guide' and includes URLs that appear to be part of a link farm. The primary attack pattern involves luring users with a seemingly legitimate document to click on these links, which likely lead to further malicious content or phishing sites.

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://cityonloc.com/uploads/1/3/0/6/130604227/130604227.html#empire+state+college+student+degree+planning+guide
    • http://padigitalmedia.com/uploads/1/3/0/8/130814014/bea7dacb67ba049.pdf
    • http://hello-baby-toys.com/uploads/1/3/1/3/131381675/nufopewukufo.pdf
    • http://kosmobullies.com/uploads/1/3/0/5/130551468/jikowati.pdf
    • http://nimmonsphotography.com/uploads/1/3/0/6/130603946/xagojat.pdf
    • http://adriennesawesomecloset.org/uploads/1/3/0/8/130813846/6dc611.pdf
    • http://befittolive.net/uploads/1/3/0/6/130639561/fcc397b156a3.pdf
    • http://islipmedicalcenter.com/uploads/1/3/1/3/131378943/2623670.pdf
    • http://aurorivallentin.com/uploads/1/3/1/4/131454109/1183483.pdf
    • http://alittlesernity.shop/uploads/1/3/0/6/130639861/nisenes-kugutonetipi-wupisuwegavatu-wamowizosugare.pdf
    • http://salavarriapainting.com/uploads/1/3/0/5/130543262/7de26ac9ee7d47.pdf
    • http://thvpnt.com/uploads/1/3/0/7/130740027/dixurup_wasof_tefelufux_todubaxuxawadi.pdf
    • http://kristawassenaar.com/uploads/1/3/1/4/131409761/sitarosetamezugewuz.pdf
    • http://nourishnation.co/uploads/1/3/0/6/130639643/modurotax.pdf
    • http://trulyextravevent.com/uploads/1/3/1/4/131406270/5750576.pdf
    • http://thespaconnoisseur.com/uploads/1/3/1/4/131453967/5606286.pdf
    • http://stevessongs.com/uploads/1/3/1/3/131381374/dapuzirizefisi_zetakunogobuk_kibob.pdf
    • http://deancantu.net/uploads/1/3/0/7/130776436/41e206a.pdf
    • http://adam-motivations.de/uploads/1/3/0/6/130621264/kirozefunitu_zurigivigimum_wopenezesanutu.pdf
    • http://mountainairdance.org/uploads/1/3/0/2/130272619/jopapededekazinegese.pdf
    • http://breatheblueboutique.com/uploads/1/3/1/6/131636974/dceafe60d728.pdf
    • http://adaradecor.com/uploads/1/3/0/6/130621407/fa9f2.pdf
    • http://northwestembroidery.net/uploads/1/3/0/8/130874029/8367210.pdf
    • http://livingthework.com/uploads/1/3/0/2/130272443/8816603.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007515.bin
fff10c4cb9a13dc504a837b5f6640b917f5562158c981e92d74fea21cff9380f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7515 10784 bytes
font_01_sfnt_off00009a35.bin
c988415812f594187b0a0ed75dc52802e798e1695b49bd300f8412a65040a449		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9A35 16204 bytes

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