Malicious PDF — malware analysis report

Static analysis result for SHA-256 570e0fcf7b50c97c…

MALICIOUS

PDF

43.3 KB Created: 2020-03-29 04:11:23 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: be86a756f64c1ea710bba8f3c9f0cc8d SHA-1: 18c20270a09dc8d32569b78e20f83853ac810960 SHA-256: 570e0fcf7b50c97cd20b8dc1ccd60fcccbbf8c79aa7432f7e738b68153643441
92 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 partially corrupted, contains a title related to writing and several URLs. The primary function appears to be directing users to a network of websites, likely for SEO spam or to host further malicious content. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://qualitycareafh.com/uploads/1/3/0/7/130740512/130740512.html#como+fazer+um+texto+narrativo+em+primeira+pessoa
    • http://marthasvineyardblowdry.com/uploads/1/3/0/8/130813144/fulibuwitelez.pdf
    • http://74-123-79-209.mgwnet.com/uploads/1/3/0/6/130621486/rasuniluju_modojoxi_xelufem_zopisikidexone.pdf
    • http://therightdoor.com/uploads/1/3/0/8/130813612/xonuzetefe.pdf
    • http://safecare.es/uploads/1/3/0/6/130604366/ramipudikusoba_lozale_jumazobo_mutoberovimo.pdf
    • http://rptservices.org/uploads/1/3/0/7/130738567/2243304.pdf
    • http://www.onpointpoolshawaii.com/uploads/1/3/0/3/130313422/gewixako.pdf
    • http://txpublicschoolproud.com/uploads/1/3/0/2/130270904/2543796.pdf
    • http://bayareaboatandhomeloans.com/uploads/1/3/0/2/130291531/4859506.pdf
    • http://sjnbasketball.org/uploads/1/3/1/1/131164187/9932214.pdf
    • http://ebanindy.com/uploads/1/3/0/4/130483270/3641617.pdf
    • http://oahphx.com/uploads/1/3/0/6/130603874/7291278.pdf
    • http://globaleventteamonline.com/uploads/1/3/0/5/130590157/1bafbdeeb63b.pdf
    • http://sunildasgupta.org/uploads/1/3/0/8/130814083/novubowebonotilefa.pdf
    • http://hostmaster.genpromotion.eu/uploads/1/3/0/5/130551362/9766300.pdf
    • http://ilovetheyarnbarn.com/uploads/1/3/0/6/130604582/guverebaput_dazuxosorizil_xapusularivi.pdf
    • http://www.hamiltonsprofessionalmovers.com/uploads/1/3/0/3/130323567/1e57d006ce535ee.pdf
    • http://casualmondayscomedy.com/uploads/1/3/0/6/130639766/gonaxonevejovus-wapufotanik.pdf
    • http://shareforlife.nl/uploads/1/3/0/2/130274032/7042891.pdf
    • http://tripleheartbalance.com/uploads/1/3/0/5/130588473/54d501944c.pdf
    • http://avedaluzern.com/uploads/1/3/0/3/130323573/xitewizasu_puxowexuvedoni.pdf
    • http://teamelam.com/uploads/1/3/0/7/130775267/rufosuxit-dajemupawawo-zeruzabozimot.pdf
    • http://mta-sts.mx.pescaturismotarifa.com/uploads/1/3/0/4/130435819/f9f721a.pdf
    • http://saltink.com/uploads/1/3/0/6/130620778/sunisogediwesat.pdf
    • http://rollershadeiq.com/uploads/1/3/0/6/130639574/wifariluxekive.pdf
    • http://chinese.genderinsanity.com/uploads/1/3/0/5/130539935/1166600.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_off00007cf5.bin
3e821da71824ec03333b6a3c5401a26c785c8ad6798ebefa152f4e21ee95967a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7CF5 9744 bytes

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