Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd7810bceac30155…

MALICIOUS

PDF

394.8 KB Created: 2022-02-22 06:18:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 5ab30be29a71e4577470a56accd105ee SHA-1: f372e772cf5bedd35a81531490daf7fdf4b4d309 SHA-256: cd7810bceac3015578c1a6ba78b48cbccf0f4dd133ca9a8a974ff06aa6999dfc
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6022

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://norin.co.za/XSRYdR1H?utm_term=japan+guide+hakone+open+air+museum PDF link annotation
    • http://sgrdpandher.com/userfiles/file/79538831599.pdfIn PDF document text
    • https://globalcircle.club/userfiles/file/ximovaragofaxadasazakel.pdfIn PDF document text
    • https://eetravel.net/file/74529670116.pdfIn PDF document text
    • http://hljxt.com/upload_files/file/2110311203070162758kn85g.pdfIn PDF document text
    • http://www.tsahimmongol.com/uploads/images/files/dibufojob.pdfIn PDF document text
    • https://xn--80aanugxqi.xn--p1ai/admin/ckfinder/userfiles/files/43885088792.pdfIn PDF document text
    • http://mariancozma.com/_user/file/32013056347.pdfIn PDF document text
    • https://www.taxiserviceh24.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620536592263e---33620372550.pdfIn PDF document text
    • http://idolyokocho.com/js/ckfinder/userfiles/files/wepadifenuwikadej.pdfIn PDF document text
    • https://www.histoiresdegroupes.com/wp-content/plugins/formcraft/file-upload/server/content/files/161c8e866c3809---dupasasusone.pdfIn PDF document text
    • http://wo-kop.pl/userfiles/file/4953554545.pdfIn PDF document text
    • http://bikaji.zohukum.com/ckfinder/userfiles/files/pijazogezewulafubazogi.pdfIn PDF document text
    • http://www.sm.ac.th/ckfinder/userfiles/files/pufizokutedozig.pdfIn PDF document text
    • http://friluftsgruppen.se/wp-content/plugins/formcraft/file-upload/server/content/files/161ce721352022---83615886622.pdfIn PDF document text
    • https://www.anep.it/ckeditor/kcfinder/upload/files/92210425622.pdfIn PDF document text
    • https://unitytradecapital.com/ckfinder/userfiles/files/dinoxexumoginomuresebov.pdfIn PDF document text
    • http://huijingweb.com/upload_fck/file/2021-8-6/20210806183447304619.pdfIn PDF document text
    • http://debeight.net/UserFiles/File/futusunijubobunagek.pdfIn PDF document text
    • https://expobar.vn/app/webroot/files/images/pages/files/1287648654.pdfIn PDF document text
    • https://viajespereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/161aa9742d03cf---tejun.pdfIn PDF document text
    • https://wildarium.com/ckfinder/userfiles/files/filegeveroraxeditipot.pdfIn PDF document text
    • https://nistd.in/userfiles/file/24132113309.pdfIn PDF document text
    • http://vector-food.com/userfiles/file/36001952182.pdfIn PDF document text
    • http://bellina.pl/userfiles/file/35451636462.pdfIn PDF document text
    • https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/bbbb31b00385419661a6d44fa4137289/lagipenomuli.pdfIn PDF document text
    • http://chapmanhighschoolclassof1968.com/clients/c/cb/cb1fed5110c07f199f416a264ee6943c/File/61532088775.pdfIn PDF document text
    • http://rentbucharest.net/images/userfiles/wusuwawonidujivaxinev.pdfIn PDF document text
    • https://businessservicesuk.com/userfiles/file/jitugovufubosaxamif.pdfIn PDF document text
    • http://bajcsidavidfoto.com/_user/file/26063579674.pdfIn PDF document text
    • http://www.mswest.co.jp/cmsdesigner/kcfinder/upload/files/10844120195.pdfIn PDF document text
    • https://center-ot-tula.ru/kcfinder/upload/files/nizeruded.pdfIn PDF document text
    • https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/593bbd962aebd213eaa0a327fd86ab05/65241508252.pdfIn PDF document text
    • https://dienlanhhonganh.com/images/pic/file/83825450995.pdfIn PDF document text
    • http://5percent-design-action.com/upload/users/files/96510877830.pdfIn PDF document text
    • https://www.scanworld.se/wp-content/plugins/formcraft/file-upload/server/content/files/161a9db49c7fdb---puriwomitofowe.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005a1f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A1F9 18712 bytes
SHA-256: 47af1769cdcb0cec57c289969d7d5565ab8564bf1116b8ce120ec4f04d40fcd5
font_01_sfnt_off0005d33e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D33E 10876 bytes
SHA-256: f24290d563f590752447d5fee383afcb64b05ce77b7dcff89812adca1450496d
font_02_sfnt_off0005ebf6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EBF6 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_03_sfnt_off00060312.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60312 16336 bytes
SHA-256: adf38969d40f501586e0caf93d33991e243baeeecfe575c4831cdbf64b7044fa

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