Malicious PDF — malware analysis report

Static analysis result for SHA-256 643218b216ff782d…

MALICIOUS

PDF

54.7 KB Created: 2021-07-02 00:48:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-07
MD5: 563cb4fd98b3a3d85772263a3365b7a1 SHA-1: a3d8366aa6271a9b2c15f135f5fc2669c98096b2 SHA-256: 643218b216ff782d36d09d9db2303549926aa242cabe78a6ffe6d49a5f7f0306
154 Risk Score

Malware Insights

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

The PDF file contains numerous links pointing to websites that appear to be compromised WordPress installations, specifically utilizing the 'formcraft' plugin for file uploads. This pattern suggests the document is designed to lure users to these sites, potentially for phishing or to download further malicious content. The ClamAV detection as 'Pdf.Phishing.Trojan' strongly supports this malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5222

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://www.moteco.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160a42882ddea2---27550851616.pdf In PDF document text
    • https://www.inkfactory.pk/wp-content/plugins/formcraft/file-upload/server/content/files/1609df2e35fa72---kukuwadij.pdfIn PDF document text
    • https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/160adf219d4227---tafol.pdfIn PDF document text
    • http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c1ecdee614f---biwevuwagow.pdfIn PDF document text
    • https://m-co.de/wp-content/plugins/super-forms/uploads/php/files/kqo98ldfuparmb88kncjb6u78r/fozudokof.pdfIn PDF document text
    • http://www.nbrownies.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160ba1cd149c52---11991366621.pdfIn PDF document text
    • https://kantankacreative.com/wp-content/plugins/super-forms/uploads/php/files/c0c5afaec6503e43061785ef39e7884a/27172301326.pdfIn PDF document text
    • https://www.financedeclined.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160918b7386ab2---39405390995.pdfIn PDF document text
    • http://baigeleather.com/userfiles/file/pibokepawakuzafugilo.pdfIn PDF document text
    • https://www.couleurs-et-jardin.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1606d43c04a116---lafakikibanis.pdfIn PDF document text
    • http://caratow.nl/userfiles/file/25320487076.pdfIn PDF document text
    • http://projectbudapest.hu/wp-content/plugins/formcraft/file-upload/server/content/files/160972550ea90e---tijowipafazasebebo.pdfIn PDF document text
    • https://stayatrosetta.com/wp-content/plugins/super-forms/uploads/php/files/9o80e6eisfjrnsb78v8si17usv/86467597387.pdfIn PDF document text
    • https://www.alertgy.com/wp-content/plugins/super-forms/uploads/php/files/814128d5298f5d87fd875d19db808ffe/xowemasufeseminaxeduge.pdfIn PDF document text
    • http://pansophers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160be0658aff33---14707019686.pdfIn PDF document text
    • http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607611559d177---momewasopololezorilok.pdfIn PDF document text
    • http://softwarefactory.nl/images/file/35294865234.pdfIn PDF document text
    • https://cengilli.com/icerik_images/file/88870161053.pdfIn PDF document text
    • http://mankatomnclassof71.com/clients/e/e0/e0e8961458839910853a12af65841b27/File/91811465133.pdfIn PDF document text
    • https://mobiligennari.com/userfiles/file/7491542728.pdfIn PDF document text
    • http://hurtmar.pl/Upload/file/xokinixapisigami.pdfIn PDF document text
    • http://foire-fromages-et-vins.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082474ebbebe---gawafabowigerapenabopukij.pdfIn PDF document text
    • https://everywheregenes.com/uploadfile/qu26_qu106_com/files/fuxixuvupa.pdfIn PDF document text
    • https://westcoastmovers.ca/wp-content/plugins/super-forms/uploads/php/files/fc5o56833kudak3ruokht4q3tl/bilutekejinalewet.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=kinking+of+ureter+meaningPDF link annotation
    • http://kioskcondoweb.wpengine.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609da68e1b5ab---21930694678.pdfIn PDF document text

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