Malicious PDF — malware analysis report

Static analysis result for SHA-256 c290417df63914e1…

MALICIOUS

PDF

57.5 KB Created: 2021-09-06 00:25:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: 5ecb011eabd8cd39baf2d74853d51655 SHA-1: 5108f04c59748b3be373782cbf953de0b093e77f SHA-256: c290417df63914e12fab17aa19dd08be142c89195f52573ed87edd887a65c511
182 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised WordPress sites. These links likely serve as a link farm to distribute malicious content or redirect users to phishing sites. The ClamAV detection and ML classifier further indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5046

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://www.esthemed.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1609a08ea844d9---14517829712.pdf In PDF document text
    • http://pro-group.ru/userfiles/files/worofumemuvivibazizasogap.pdfIn PDF document text
    • https://bhiringisamsankalimandir.org/ckfinder/userfiles/files/28242825869.pdfIn PDF document text
    • https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/161328a6112880---legesitanafabetidazurozo.pdfIn PDF document text
    • https://latework.cz/soubory/domazarefiw.pdfIn PDF document text
    • http://princeverma.in/uploads/files/zegobazepujewowejitajaw.pdfIn PDF document text
    • http://104.156.58.56/~web2inbox/wp-content/plugins/formcraft/file-upload/server/content/files/160897d6d685b5---23021209683.pdfPDF link annotation
    • http://ky-auto.com/uploadfile/files/bujexovaxatuwofirejalorop.pdfIn PDF document text
    • http://bazis-expertiza.ru/ckfinder/core/connector/php/files/dofaxumetavesazowinizu.pdfIn PDF document text
    • https://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/160941a257d58f---22884814821.pdfIn PDF document text
    • http://ilovegabal.net/fckeditor/_upload/file/39188058960.pdfIn PDF document text
    • https://realimpacto.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609c830759493---nusij.pdfIn PDF document text
    • http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612b1772d5298---66694078645.pdfIn PDF document text
    • http://estatepie.com/files/userfiles/file/78616375476.pdfIn PDF document text
    • http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bd18ac99d1c---38363095439.pdfIn PDF document text
    • http://careerdynamic.com/clients/3/3d/3d9dba0a3645e5854abf1db7654b9c86/File/99233182141.pdfIn PDF document text
    • https://www.financedeclined.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16099c31e44376---guleno.pdfIn PDF document text
    • https://noddy.nu/images/file/gijubedulebururidejusavu.pdfIn PDF document text
    • https://dgssu.com/upfolder/e/files/20210829125205.pdfIn PDF document text
    • http://allseasonsart.com/uploads/fck_uploads/file/toragesoze.pdfIn PDF document text
    • http://www.urbanwaterways.info/files/rodonamebitubokurota.pdfIn PDF document text
    • https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/16112c3892e9fc---53987739602.pdfIn PDF document text
    • http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609784fae57e0---dofuxitu.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=embalming+techniques+pdfPDF link annotation
    • https://mediacentre.heathrow.com/js/ckfinder/userfiles/files/49741593743.pdfIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Open this report in the interactive analyzer, or submit your own file for analysis.