Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d7c8c460bb696c…

MALICIOUS

PDF

357.3 KB Created: 2022-02-20 00:54:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: e3ffb728f87ddb570ce7d3b5b7fecce1 SHA-1: 8185323986f2938f14d407d71b6bfcf2e68f7c5f SHA-256: c5d7c8c460bb696c41914a3a4e40378120c200a63a0ca5b6f0ce7e54d2f0677a
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7480

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
  • 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.
  • 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
  • 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://wirut.co.za/XSRYdR1H?utm_term=performance+curve+of+centrifugal+pump.+pdf PDF link annotation
    • http://kavernoklub.com/campannas/file/banotajogikajoxapifoped.pdfIn PDF document text
    • http://www.prunay-en-yvelines.fr/ckfinder/userfiles/files/tanor.pdfIn PDF document text
    • https://t4g.nasscomfoundation.org/wp-content/plugins/super-forms/uploads/php/files/ftom3ev509k6lhdbaaq5hd2817/vigalevif.pdfIn PDF document text
    • http://xtra360.net/campannas/file/76916148685.pdfIn PDF document text
    • http://orthodoxvaidikasanghom.org/userfiles/file/zapaxik.pdfIn PDF document text
    • http://dylogistics.com/userData/board/file/52006411186.pdfIn PDF document text
    • https://maisonforville.be/documents/file/77674189918.pdfIn PDF document text
    • http://dges.in/userfiles/file/gitix.pdfIn PDF document text
    • http://thegoshow.net/userfiles/file/zurulonivixabuwur.pdfIn PDF document text
    • https://dangeloremodeling.com/nbloom/fckuploads/file/vuvopimutanijakepaputogo.pdfIn PDF document text
    • https://habibitours.net/ckfinder/userfiles/files/duxig.pdfIn PDF document text
    • https://etonbio.com/newsLetters/images/file/72067343285.pdfIn PDF document text
    • http://videlec.be/ressource/file/94871364630.pdfIn PDF document text
    • http://podten.com/sites/userfiles/file/nenuxodubarigabotam.pdfIn PDF document text
    • https://soudurelausiere.com/upload/editor/file/wiwigalafi.pdfIn PDF document text
    • http://indyskischool.com/ckfinder/userfiles/files/86547841660.pdfIn PDF document text
    • http://ayurveda-shiatsu-qigong-nice.com/upload/files/83258753450.pdfIn PDF document text
    • http://devveb.net/userfiles/file/63518113509.pdfIn PDF document text
    • https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1615ad5ac3b77c---28777055214.pdfIn PDF document text
    • http://aisne.proximeo.com/ckfinder/userfiles/files/58527732430.pdfIn PDF document text
    • https://ehblending.com/wp-content/plugins/super-forms/uploads/php/files/ae0acd29049daa4c04d69796d0ab6779/jexufuvezigamubonokiviret.pdfIn PDF document text
    • http://uteambio.com/upload/files/xipezazapafutu.pdfIn PDF document text
    • https://transcendenceit.com/wp-content/plugins/super-forms/uploads/php/files/b89a2a333960f68bc1e224c37f4dec38/zowawibozezubowofogum.pdfIn PDF document text
    • https://eksiliotomotiv.com/upload/ckfinder/files/xosasexogebedorixivif.pdfIn PDF document text
    • http://kondicionery-elektrostal.ru/upload_picture/file/38428860409.pdfIn PDF document text
    • https://kristaldicarlo.com/userfiles/file/wafekojiroj.pdfIn PDF document text
    • https://stefandes.com/wp-content/plugins/formcraft/file-upload/server/content/files/161865b04c3e35---jebiwezuluwofop.pdfIn PDF document text
    • http://wwsm-hk.com/files/file/31106913451.pdfIn PDF document text
    • https://aquariumfargo.com/wp-content/plugins/super-forms/uploads/php/files/342368f72ecae63b1816067f59f417f9/magosakedawaro.pdfIn PDF document text
    • http://f-okinawa.com/img/tmp/files/fujadiduroxebawopeboxad.pdfIn PDF document text
    • http://www.jindatunnel.com/up_files/file/xifubusajenenikawisaduv.pdfIn PDF document text
    • http://flexibordj.com/app/webroot/js/kcfinder/upload/files/27328028399.pdfIn PDF document text
    • https://dennismaloney.ca/upload/editor/file/baxemuladavi.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_off0005234e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5234E 11028 bytes
SHA-256: 2b1b64b95fe52cec462cce7315e7bd144dd9847b92377c4f0463c32599b1e2a7
font_01_sfnt_off00053cbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53CBC 18832 bytes
SHA-256: 558c85b7e4783a0d144359e55f2680746b508d12af9a71718c5c8a67bbc39a9b
font_02_sfnt_off00056e52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56E52 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9