Malicious PDF — malware analysis report

Static analysis result for SHA-256 478db321fa0d42f2…

MALICIOUS

PDF

509.8 KB Created: 2022-02-20 05:48:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20
MD5: d9e334a4eb76fa09c8afcb11f139aa3b SHA-1: 454626ba8686a5d1cefa1182c2acbe7ea5466d5e SHA-256: 478db321fa0d42f28f838e97e146163833c8cff09552eadb3915fa2e4a73c708
144 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4094

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=ilearn+rkcl+answer+key PDF link annotation
    • http://www.holderit.com/wp-content/plugins/formcraft/file-upload/server/content/files/161a012a649fe7---makakupe.pdfIn PDF document text
    • http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161b9b4e983d92---zogarubesipolasok.pdfIn PDF document text
    • http://xn--80aguejfegacgj0ad.xn--p1ai/pict/file/nivekodemofidoxize.pdfIn PDF document text
    • https://shopinhome.com/ci/userfiles/files/74894442313.pdfIn PDF document text
    • https://aromamarketing.md/img/files/fazurixupajefuz.pdfIn PDF document text
    • http://tolaniprojects.com/userfiles/file/86378452092.pdfIn PDF document text
    • https://belgradenightlife.info/wp-content/plugins/super-forms/uploads/php/files/66vl6q9h3ji944783asjl52cuf/wajamokoxutagelotawawatob.pdfIn PDF document text
    • https://trongtrucsolution.com/uploads/files/48461520767.pdfIn PDF document text
    • http://salonlomi.pl/wp-content/plugins/formcraft/file-upload/server/content/files/161d545840c8c9---17178787681.pdfIn PDF document text
    • http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e1908eb5654---16165593776.pdfIn PDF document text
    • http://cmrivestimenti.com/userfiles/files/10199374976.pdfIn PDF document text
    • http://eakqshop.com/ckfinder/images_store/files/72871430900.pdfIn PDF document text
    • http://illinoislivestock.org/userfiles/file/6941960168.pdfIn PDF document text
    • http://gopay24.pl/app/webroot/js/kcfinder/upload/files/58048594537.pdfIn PDF document text
    • http://robinph.com/images/file/vasitalemoxejererikeliz.pdfIn PDF document text
    • https://www.higher-energy-trampolineclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/161f3e9926f42a---93146582521.pdfIn PDF document text
    • http://eshop-kocicinadeje.cz/files/file/82839792993.pdfIn PDF document text
    • http://www.expo-hotel.com/english/wp-content/plugins/formcraft/file-upload/server/content/files/160dd79d520571---wesutilokifegorizi.pdfIn PDF document text
    • http://nontaromclinic.com/ckfinder/userfiles/files/jataxusivuzedag.pdfIn PDF document text
    • https://ductlessheating.ca/fck_upload/file/77644723054.pdfIn PDF document text
    • http://safiorida.nl/operatori/userfiles/file/79922795577.pdfIn PDF document text
    • https://nordavril.com/userfiles/file/zazidorij.pdfIn PDF document text
    • http://xn--9i1b14l32gg2dsybq3b.com/upload/fckeditor/file/sibepawugonukur.pdfIn PDF document text
    • http://ttlh.vn/storage/ckfinder/files/22659385247.pdfIn PDF document text
    • https://www.moxiclear.com.au/application/third_party/ckfinder/userfiles/files/86752823651.pdfIn PDF document text
    • https://linhngapt.vn/upload/files/mamanutobajuzasam.pdfIn PDF document text
    • https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/1616d646f6ec78---xelen.pdfIn PDF document text
    • https://halobysciton.com/wp-content/plugins/formcraft/file-upload/server/content/files/16173a6d84e6aa---bibadawa.pdfIn PDF document text
    • http://thebankcardservices.com/uploads/files/rikazonoruwo.pdfIn PDF document text
    • https://mkart.it/uploads/file/tivaraselopelepalijezen.pdfIn PDF document text
    • http://se-ty.ru/uploads/userfiles/file/18975250696.pdfIn PDF document text
    • https://www.trungtammaychieu.com/ad-min/js/libs/kcfinder/upload/files/figakalixixaguxop.pdfIn PDF document text
    • https://www.chinacimctrailer.com/wp-content/plugins/super-forms/uploads/php/files/cce9f55038c97fe377a3908d3bbc7f8b/62979420624.pdfIn PDF document text
    • http://ekolojikweb.net/upld/userfiles/file/43845543388.pdfIn PDF document text
    • https://www.borzabadi.com/ckfinder/userfiles/files/66178869670.pdfIn PDF document text
    • http://tuecpa.com/file_media/file_image/file/18030644670.pdfIn PDF document text
    • http://www.theflightfest.com/wp-content/plugins/formcraft/file-upload/server/content/files/161abcb2fdc404---53325469130.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.netReferenced by PDF JavaScript
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseReferenced by PDF JavaScript

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00078356.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78356 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off00079a71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79A71 19536 bytes
SHA-256: f854f4cf974d6e84b380ddf5e9e43343a2ebdbd723fe57acf97794ae1343e237
font_02_sfnt_off0007ce5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CE5F 10156 bytes
SHA-256: f98ffd930798d2faa3610c1b4a0eab7f610440f8b2f6361fee8873bad67988f5

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