Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d16fe012b6a11c…

MALICIOUS

PDF

337.4 KB Created: 2022-03-06 07:54:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-27
MD5: de282aa9554db43d278f5c82016ef18f SHA-1: 02b5caaa0d9de1731010e1f0302a46455b423a2d SHA-256: c5d16fe012b6a11c4a170f9adbe8fa595047c276f18d0c2e59784a94aa837021
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7372

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://loheb.co.za/XSRYdR1H?utm_term=job+interview+questions+and+answers+about+yourself PDF link annotation
    • http://streetnn.ru/data/upload/ck/files/13879690712.pdfIn PDF document text
    • http://geshome.co.jp/cmsdesigner/kcfinder/upload/files/pifod.pdfIn PDF document text
    • http://vwtint.com/userData/board/file/sedufapuvo.pdfIn PDF document text
    • http://newgoodluckcrane.com/admin/uploadfiles/file/mabagaguvudot.pdfIn PDF document text
    • http://nomayaku.com/userfiles/file/46340902686.pdfIn PDF document text
    • http://ranch.pl/files/file/44887217645.pdfIn PDF document text
    • https://hatarozatok.martonvasar.hu/ckeditor/kcfinder/upload/files/danolagujixumubefexa.pdfIn PDF document text
    • https://jss-moms.si/upload/File/nuveledikarozi.pdfIn PDF document text
    • https://ph2020.org/ckfinder/userfiles/files/49214660799.pdfIn PDF document text
    • http://www.alex-vasilkov.ru/images/wisdom/file/37744972021.pdfIn PDF document text
    • https://shoppe.everybodyisnotdoingit.org/gift/userfiles/files/91076362011.pdfIn PDF document text
    • http://levne-pohary.cz/UserFiles/File/21589138194.pdfIn PDF document text
    • https://dulichsamson.co/admin/webroot/upload/image/files/savikodop.pdfIn PDF document text
    • https://hopadive.cz/ckfinder/userfiles/files/14176964391.pdfIn PDF document text
    • https://eatorhours.org/e-bussiness/fckimages/file/tafawedunerilexurawa.pdfIn PDF document text
    • http://hanahana.vn/media/ftp/file/41580973673.pdfIn PDF document text
    • https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fe23ebcf2fc---95491964670.pdfIn PDF document text
    • http://infrabud.eu/fckpliki/file/65237366084.pdfIn PDF document text
    • https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/162178363423ba---63918328418.pdfIn PDF document text
    • https://genesisbehaviorcenter.com/wp-content/plugins/super-forms/uploads/php/files/c23f351b10a9b81b26f5fbc3230d34c3/21119830889.pdfIn PDF document text
    • https://www.pkkmaluku.org/berkas/plugin/ckeditor/kcfinder/upload/files/sofoxazemetusibeposido.pdfIn PDF document text
    • https://mobilaide.com/upload/editor/file/kemakapalegododabipame.pdfIn PDF document text
    • https://vectronic.tech/admin/ckeditor/kcfinder/upload/files/30909268075.pdfIn PDF document text
    • https://cuichi177.com/uploads/files/202203031915512251.pdfIn PDF document text
    • http://exosportsante.fr/ckfinder/userfiles/files/61314057341.pdfIn PDF document text
    • https://charterboatdeliverance.com/uploads/files/44540419537.pdfIn PDF document text
    • https://www.guestquesttravelmedia.com/wp-content/plugins/super-forms/uploads/php/files/e3pubic8im3lon9f19gq04p11m/vuziwok.pdfIn PDF document text
    • http://dmhu.eu/uploads/uplib/file/nujenoxemiriwenifow.pdfIn PDF document text
    • http://szybkieprawko.pl/szybkieprawko.pl/user/admin/fck/file/xabexu.pdfIn PDF document text
    • http://moscowprice.com/content/xuploadimages/file/18603063445.pdfIn PDF document text
    • https://karsdanapazari.com/panel/kcfinder/upload/files/tuligafowuxusegokuwumuruv.pdfIn PDF document text
    • https://dagvandearchitectuur.be/_files/file/zaruzanofunajujikakupox.pdfIn PDF document text
    • http://satthachkhe.vn/image/file/58629936683.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_off0004d07f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D07F 20304 bytes
SHA-256: 75b6737d39e1f460c14af45a72cbc61f23ef7a9117b9c583883569227a3c4175
font_01_sfnt_off0005053d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5053D 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00051c5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51C5D 10992 bytes
SHA-256: 2fd701e5a055102d8e3c14cff6678d167c390aedd9d0a060b7c91356499457f9