Malicious PDF — malware analysis report

Static analysis result for SHA-256 5bf7aa741d642957…

MALICIOUS

PDF

379.9 KB Created: 2022-01-23 17:31:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-14
MD5: e378280273c027b2ae9a937362d129f2 SHA-1: 18460458d0b93612701c89d26038d2f372cb05c1 SHA-256: 5bf7aa741d642957e3959089021297a69c15810536f88f999f2640c8e6955a3c
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6448

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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 https://esteticarcare.com/wp-content/plugins/super-forms/uploads/php/files/69f68e2a59d6a7b11de0170899700b70/pojevawegugawixiramas.pdf In PDF document text
    • http://myapartment.de/web/editor/files/98779982445.pdfIn PDF document text
    • http://gift-founder.com/archive/upload/files/76034777305.pdfIn PDF document text
    • https://k-kompany.ru/wp-content/plugins/super-forms/uploads/php/files/4ef54a830725abb0788ad8d2cb2ae258/86057729850.pdfIn PDF document text
    • http://www.allatpatikapecs.hu/images/file/zovefedenokofomedo.pdfIn PDF document text
    • https://paloaltospeakerseries.com/wp-content/plugins/super-forms/uploads/php/files/21daad57ec549a839ad4d80df6b070f6/45897274198.pdfIn PDF document text
    • https://alihuata.com/userfiles/file/tabukowefom.pdfIn PDF document text
    • https://careerroots.net/ckfinder/userfiles/files/maxipu.pdfIn PDF document text
    • https://gadesign52.com/uploads/files/202110291927163696.pdfIn PDF document text
    • http://ranchobg.com/img/file/naxisi.pdfIn PDF document text
    • http://www.tenniscanberra.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161b21f45531c2---luwaf.pdfIn PDF document text
    • http://special-pharma.com/upload/files/ranop.pdfIn PDF document text
    • https://kaemsp.org/upload/editor/file/govanusorevadefuletalexa.pdfIn PDF document text
    • http://pujcovnanaradi-tvarozna.cz/userfiles/files/refeboramarawuserobunu.pdfIn PDF document text
    • http://1qjd.com/upload/files/2021-11-13-16-09-58-6p9vebzg.pdfIn PDF document text
    • http://mehmetrasimmutlu.com/icerik/file/81864335332.pdfIn PDF document text
    • http://www.studiolegalefusimorelli.com/wp-content/plugins/formcraft/file-upload/server/content/files/1616a7dc38ea4d---basikigupowigiwizisuna.pdfIn PDF document text
    • http://hbisan.com/userfiles/file/88752755274.pdfIn PDF document text
    • http://ghettaetamionarchitetti.it/userfiles/files/10790827364.pdfIn PDF document text
    • http://solamsys.com/userData/board/file/78716025145.pdfIn PDF document text
    • http://wo-kop.pl/userfiles/file/57997712411.pdfIn PDF document text
    • http://ambulatorioveterinarioilprato.eu/userfiles/files/41100918743.pdfIn PDF document text
    • http://pastadimatteo.com/ckfinder/userfiles/files/55839038654.pdfIn PDF document text
    • https://trungtammaychieu.com/ad-min/js/libs/kcfinder/upload/files/58421805310.pdfIn PDF document text
    • https://kristaldicarlo.com/userfiles/file/zetupirajipopibom.pdfIn PDF document text
    • https://voolabs.com/wp-content/plugins/formcraft/file-upload/server/content/files/16191527e8baf3---xulelititonimozowob.pdfIn PDF document text
    • http://birons.net/wp-content/plugins/super-forms/uploads/php/files/ed8b26cf634f9fbdb7c23cf548e6403c/jujivanorak.pdfIn PDF document text
    • https://erdemlerkoleji.com/resimler/files/ligojixilojufumajikurop.pdfIn PDF document text
    • http://aptekarynek.pl/zdjecia/fck/file/9339244878.pdfIn PDF document text
    • https://kralpin.com/calisma2/files/uploads/90711214240.pdfIn PDF document text
    • http://www.extramas.com/userfiles/files/nimuvirere.pdfIn PDF document text
    • https://www.retailexpert.sk/gfx/administration/js/ckeditor/kcfinder/upload/files/38252907399.pdfIn PDF document text
    • http://xn--hh0b97d8is16e.com/userData/board/file/xuzewasuwoxakiper.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161c87037e4c54---roladapajokogeliziw.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/xPAns0MRe5M/uplcv?utm_term=platform+heels+amazonPDF link annotation
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn extracted file (font_00_sfnt_off000585ee.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off000585ee.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000585ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x585EE 10448 bytes
SHA-256: 524e0cc1a390a7fae8792a75e4f56a60bb6a6d01f1e569a7fb5c50e9e127ff77
font_01_sfnt_off00059d85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59D85 17000 bytes
SHA-256: 5cac0b89ddabbf399c91b87b23ded488cd96d8d15a36002d1e8cbe221a952b1a
font_02_sfnt_off0005c9a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C9A2 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336