Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3074cdad8671234…

MALICIOUS

PDF

64.0 KB Created: 2021-09-17 16:09:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 64e039e707ee39b3683a137e708768e5 SHA-1: 35a0f74c4ce502b23476c79b8e79bdf133f1b12c SHA-256: c3074cdad867123498ec6e02e2d148bcdfaca5db912138e525b5c0268f7834da
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many of which point to compromised CMS upload directories or disposable hosting, suggesting a phishing or malicious redirection scheme. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to lure users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6405

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://hightopeducation.com/cms_uploaded/file/kagifugezafefirogu.pdf
    • http://orthocarecentroortopedico.it/userfiles/files/vasavakinovew.pdf
    • https://avigailpekelman.com/sites/default/files/file/lugir.pdf
    • https://balticstroy.com/uploads/files/69441203642.pdf
    • http://simoncaulkin.com/images/foditujewapuseveromew.pdf
    • https://cualuoihoanmy.com/uploads/userfiles/file/taduwopuzupon.pdf
    • http://cabinet-blin.fr/ressource/site-image/files/biriwixevudofo.pdf
    • http://webinaris.org/ckfinder/userfiles/publics/files/ponupapovovuzopekigipuno.pdf
    • http://officinedesign.it/userfiles/files/mekimepatipajisuze.pdf
    • http://sinosteelcode.com/filespath/files/20210909064448.pdf
    • http://opgzvh.hr/upload/file/ludobevasorojelawibekor.pdf
    • https://pernambucoimortal.com/imagens/files/67777333769.pdf
    • https://mimpiindahsatu.com/contents/files/69719828925.pdf
    • http://kraski-chernila.ru/resources/file/52105265556.pdf
    • http://spellenindex.nl/images/uploads/xusejefivajalibomurexeda.pdf
    • https://abogadosaccidentealicante.centralcms.cloud/galeria/files/jufomi.pdf
    • https://elpollopaulino.com/cenavarra_userfiles/files/53519850413.pdf
    • https://tourgardan.com/basefile/tourgardancom/files/midutegaz.pdf
    • http://risme.vn/files/2152776005.pdf
    • http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/16142b1cc22b67---67222888720.pdf
    • http://europeanprofservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/161317596dc0e5---25233794101.pdf
    • http://salocchi.it/userfiles/files/mapifitizat.pdf
    • https://hkfew.org.hk/ckfinder/userfiles/files/kujepakitozemoman.pdf
    • http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1612f0e2b011a2---38383073463.pdf
    • http://xn--80aafbladvtgxneccoge3bt.xn--p1ai/pict/file/rawazewekozexonujirefewep.pdf
    • https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=naruto+shippuden+416

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