Malicious PDF — malware analysis report

Static analysis result for SHA-256 d50e78369aa39c6f…

MALICIOUS

PDF

384.2 KB Created: 2022-03-26 16:45:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-29
MD5: 6c02f32823afe7c6d68e1dfc3c021942 SHA-1: fe27fbb93284a6f64c7b6549dc1c491096115752 SHA-256: d50e78369aa39c6f7372b1e3b1549533bb5575a2968806f5c15b63e91071b66e
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6300

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://yoyep.co.za/XSRYdR1H?utm_term=lyrics+to+we+know+the+way PDF link annotation
    • https://moderator.lt/components/com_mijoshop/opencart/image/data/files/11841200038.pdfIn PDF document text
    • http://ekorob.pl/userfiles/file/98376242374.pdfIn PDF document text
    • http://jrpst.pl/userfiles/file/81255303942.pdfIn PDF document text
    • https://pulsekb.ru/admin/ckfinder/userfiles/files/58982222210.pdfIn PDF document text
    • http://martonfogtechnika.hu/admin/kcfinder/upload/files/juleji.pdfIn PDF document text
    • http://maxitelt.no/wp-content/plugins/formcraft/file-upload/server/content/files/1623ef81a3a655---zevexibeparojuxadogo.pdfIn PDF document text
    • https://empezo.xyz/js/ckfinder/userfiles/files/90717505726.pdfIn PDF document text
    • http://faceti.es/fil/ckFiles/files/pigalovurodubido.pdfIn PDF document text
    • http://www.companyforte.com/imagenes/editor/file/gitajuwulenosewelijewok.pdfIn PDF document text
    • https://antwerp-reefer-tournament.be/argt/files/57373467992.pdfIn PDF document text
    • http://uniroll.pl/user_images/file/gotafavuwawanevupuma.pdfIn PDF document text
    • http://opgzvh.hr/upload/file/lavimolawexemevakit.pdfIn PDF document text
    • http://streathamtaxi.com/survey/userfiles/files/zemozuw.pdfIn PDF document text
    • http://xn----7sbqwxdbhblh2h.xn--p1ai/data/file/93937525443.pdfIn PDF document text
    • https://topinsolventa.ro/userfiles/file/mugikavejom.pdfIn PDF document text
    • http://universalthailand.com/images/uploads/ckfinder/files/senukuxe.pdfIn PDF document text
    • https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/932495c9f8dde48380d48aa6738d77d6/57339160406.pdfIn PDF document text
    • https://www.sevgiliyevideo.net/wp-content/plugins/formcraft/file-upload/server/content/files/16208aa345e6f1---majupa.pdfIn PDF document text
    • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/16205cf2f063ef---jefujodu.pdfIn PDF document text
    • https://hotelexpert.ro/uploads/files/disaredevolupo.pdfIn PDF document text
    • http://protectpharmaceuticals.com/Images/files/38579450519.pdfIn PDF document text
    • http://hengelo.scholenkeuze.nl/UserFiles/files/6700337907.pdfIn PDF document text
    • http://dailyliving.nl/ckfinder/userfiles/files/43922766954.pdfIn PDF document text
    • https://led7.ru/file/xuxunegobenudu.pdfIn PDF document text
    • http://primewritings.grand-essays.com/media/uploads/files/dijusutifofamesevofe.pdfIn PDF document text
    • https://iieng.org/editor/ckfinder/userfiles/files/21253621464.pdfIn PDF document text
    • http://gatewayhotelbangkok.com/upfile_hotel/files/29114478187.pdfIn PDF document text
    • http://sokol.knezmost.cz/soubory/nisosu.pdfIn PDF document text
    • http://conf.uml2.ru/kcfinder/upload/files/64990631148.pdfIn PDF document text
    • http://whatdwellswithin.com/file/59958951814.pdfIn PDF document text
    • http://geoass.eu/userfiles/files/lisegukeximazuzi.pdfIn PDF document text
    • http://waetsukai.jp/system/ckfinder/userfiles/files/90796779782.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_off000593f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x593F6 10532 bytes
SHA-256: 6da20fea67eff979d30a82e0656e6adc5dc55917d0ec4f668046daec72405b5e
font_01_sfnt_off0005ac04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AC04 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0005c31f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C31F 17776 bytes
SHA-256: b5c9edc18a023ad58a0b408798b43d5193517569fc98c9d00732e021cad60bff