Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9968ec4ba9a0c20…

MALICIOUS

PDF

292.1 KB Created: 2022-03-02 02:52:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-13
MD5: d9ff8e2ff1b55122016e0e62dd69faeb SHA-1: fafdde305dedee4145995c6d8d22143df0ac4c9b SHA-256: f9968ec4ba9a0c20749d06172b39eeceb61a7e41e4c398e3ef4190bb8eb17b0e
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6537

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://podar.co.za/XSRYdR1H?utm_term=atoms+and+molecules+worksheet+grade+3 PDF link annotation
    • http://gshosnab.ru/userfiles/file/33923449891.pdfIn PDF document text
    • http://caerulumpharma.com/upload/files/pafanerosifuxejudevaxu.pdfIn PDF document text
    • http://cokhihoaiduc.com/uploads/files/zozatuvezijux.pdfIn PDF document text
    • https://shioturboapi4-xyz.com/contents/files/2920062565.pdfIn PDF document text
    • http://resetimpianti.it/reset/public/file/33553541489.pdfIn PDF document text
    • http://uslugiinzynierskie.com/eurostyl/photos/file/kutega.pdfIn PDF document text
    • https://egf.tw/test2/images/file/91521921267.pdfIn PDF document text
    • http://mn-print.ru/ckfinder/userfiles/files/jibexepegavatemuvirigixa.pdfIn PDF document text
    • http://www.papelerialapiceros.es/ckfinder/userfiles/files/pebarak.pdfIn PDF document text
    • https://pima-alarms.eu/slicice/file/tosuja.pdfIn PDF document text
    • https://freebcard.com/ckfinder/userfiles/files/91925512548.pdfIn PDF document text
    • https://fcefrance.com/kcfinder/upload/files/defusuremovi.pdfIn PDF document text
    • https://mygoaltv.com/ipp/images/uploads/files/11915040466.pdfIn PDF document text
    • https://palet-school.com/files/files/18162430684.pdfIn PDF document text
    • http://phuketdriveschool.com/userfiles/file/potoputipelenudolalar.pdfIn PDF document text
    • http://xmzhj.com/UserFiles/file/61767789955.pdfIn PDF document text
    • https://www.centralleiloes.com.br/admincentral/ckeditor/kcfinder/upload/files/43030034745.pdfIn PDF document text
    • https://thefashion.asia/admin/kcfinder/upload/files/jisonigumivagumo.pdfIn PDF document text
    • http://ciudadaniadesdeelaula.com/kcfinder/upload/files/mupovunexixokozow.pdfIn PDF document text
    • http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/16207be221df15---bedimaboj.pdfIn PDF document text
    • http://plusbateria.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620c67c735b38---najifalexozubiwib.pdfIn PDF document text
    • http://helpnri.org/kcfinder/upload/files/dupaxuwiku.pdfIn PDF document text
    • http://europeanprofservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/16205d61c451e1---mumerugas.pdfIn PDF document text
    • https://youkuvpn.com/upload/files/zixeneronadoreruvi.pdfIn PDF document text
    • http://www.carolglassman.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621080c6c4800---mitumibowibawulafu.pdfIn PDF document text
    • https://ehlibeytalimleri.com/resimler/files/78327694555.pdfIn PDF document text
    • http://muzycznescyzoryki.pl/userfiles/file/98668916082.pdfIn PDF document text
    • http://naasschoolofmotoring.ie/fckeditor/userfiles/file/dumuk.pdfIn PDF document text
    • https://menokatea.com/ckfinder/userfiles/files/sudexebedogajedofudi.pdfIn PDF document text
    • http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/161f943602c1a0---gexaxur.pdfIn PDF document text
    • http://atlantidaagency.com/kcfinder/upload/files/ribiniterejujusevel.pdfIn PDF document text
    • https://5points.com.ng/5points-admin/kcfinder/upload/files/loberafibobuzev.pdfIn PDF document text
    • http://www.prunay-en-yvelines.fr/ckfinder/userfiles/files/49188353204.pdfIn PDF document text
    • http://hqr-group.com/admin/kcfinder/upload/files/wadarilivulepef.pdfIn PDF document text
    • 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 PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00042053.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x42053 11156 bytes
SHA-256: 929dcef79afed1bfb7f9f8020043e1746d63193d31955f2d7a55187d73e29fb7
font_01_sfnt_off00043a28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x43A28 17976 bytes
SHA-256: a5e17fdf1a3c956d2bb6e7a51f295498a68c51d4a4fbdd2d8a0c77e05b50efd1
font_02_sfnt_off00046967.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46967 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9