Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e38a81139ea35f6…

MALICIOUS

PDF

374.6 KB Created: 2022-02-05 23:23:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 16a824d5b7ea0267eea97ede05f0590f SHA-1: 226aaf01ce344c16d7805e6a0d0f68b4d126b7f8 SHA-256: 4e38a81139ea35f6ee4a203b64157af7d6c2be16dc24b170d348faebd5cb6a05
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6485

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://fecuq.co.za/XSRYdR1H?utm_term=future+simple+test+with+answers+pdf PDF link annotation
    • http://magischtheater.nl/userfiles/file/95691720771.pdfIn PDF document text
    • https://hoanghaie.com/Images_upload/files/31009838233.pdfIn PDF document text
    • http://satakantaresort.com/user_img/files/burosulalowuxodi.pdfIn PDF document text
    • http://softwarefactory.nl/images/file/17289739086.pdfIn PDF document text
    • https://kolegium.inaheart.org/upload/files/72504094474.pdfIn PDF document text
    • http://timnhanhonline.net/upload/files/lufivevuguxidatorupubawu.pdfIn PDF document text
    • http://cainghienbinhduong.com/uploads/userfiles/file/98010310952.pdfIn PDF document text
    • https://www.limratechnologies.net/wp-content/plugins/formcraft/file-upload/server/content/files/1610a710a45a5a---82496436324.pdfIn PDF document text
    • https://mayxaydungdailong.com/media/ftp/file/32691896355.pdfIn PDF document text
    • https://nestsearch.in/admin/uploads/file/rovatadojudowunek.pdfIn PDF document text
    • http://bogaarchitetti.it/userfiles/files/97156638683.pdfIn PDF document text
    • http://gruppocreta.com/userfiles/files/bikugufuwikorobuw.pdfIn PDF document text
    • http://fujavietnam.com/images/Download/85969845005.pdfIn PDF document text
    • https://amigo-shop.105h.net/upload/files/95865135568.pdfIn PDF document text
    • https://creationstationdance.com/wp-content/plugins/formcraft/file-upload/server/content/files/161404756084a6---gawepidarovude.pdfIn PDF document text
    • http://nasfthr.com/userfiles/file/lixesilikirapote.pdfIn PDF document text
    • http://coolbiotech.com/upload/files/50641327656.pdfIn PDF document text
    • http://bezpiecznamlodosc.org/files/file/pezexi.pdfIn PDF document text
    • https://online-wums.com/files/files/1954669023.pdfIn PDF document text
    • https://drhuanghair.com/uploads/files/202201242046027673.pdfIn PDF document text
    • http://j1ent.com/userfiles/file/20211013140459.pdfIn PDF document text
    • http://dagmare.de/userfiles/file/36455560460.pdfIn PDF document text
    • http://didula.com/img/file/rexip.pdfIn PDF document text
    • https://brokenspoke.com/wp-content/plugins/super-forms/uploads/php/files/9e1210bff455a75912303c9830b3fc91/90311739636.pdfIn PDF document text
    • http://regcureguide.com/files/files/19832295295.pdfIn PDF document text
    • http://raffaelecavazzoni.com/userfiles/files/tagubijusitufos.pdfIn PDF document text
    • http://wetravels.com/kcfinder/upload/files/dinaram.pdfIn PDF document text
    • http://maschimaurizio.it/userfiles/files/23459849021.pdfIn PDF document text
    • http://zxsolar.com/d/files/wupozovenotogujazilef.pdfIn PDF document text
    • http://flixgolf.com/ckeditor/ckfinder/userfiles/files/mejikuturawuvava.pdfIn PDF document text
    • https://digiconelectronics.com/media/17324275887.pdfIn PDF document text
    • http://cuspsurgeons.com/admin/kcfinder/upload/files/62360081475.pdfIn PDF document text
    • https://upsoul.com.br/assets/kcfinder/upload/files/77909080395.pdfIn PDF document text
    • http://www.kevimotor-rock.hu/files/files/lavosave.pdfIn PDF document text
    • http://voyagerav.com/v15/Upload/file/20211031531332596.pdfIn PDF document text
    • http://hifitness.hu/userfiles/file/71028792812.pdfIn PDF document text
    • https://www.myjamaicais.com/wp-content/plugins/super-forms/uploads/php/files/61ad34931339758bbfafccd1cb882601/fomabufadipemesizijanoxof.pdfIn PDF document text
    • http://aktifmedya.com/dosyalar/files/kimasetidizetowijibun.pdfIn PDF document text
    • https://ikomsolutions.com/admin/userfiles/file/30856446053.pdfIn PDF document text
    • https://giant-nano.com/app/webroot/userfiles/files/texojilupafetef.pdfIn PDF document text
    • https://mai-avto.ru/upload_files/file/91118970480.pdfIn PDF document text
    • https://deewo.de/wp-content/plugins/formcraft/file-upload/server/content/files/161a4f5a2ccaf1---13434701274.pdfIn PDF document text
    • https://pielinks.com/UserFiles/file/guvigoforuxaduzitol.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
    +2 more URL(s)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00056e30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56E30 16936 bytes
SHA-256: b5dab0e0aacabd1a5ae53d47897d017b9234394e12ec4116723847815f32503d
font_01_sfnt_off00059a59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59A59 10808 bytes
SHA-256: d613cea16ecfcdb194f5efd2a0e6ee189d9faa467e493ee2c21c38aebcb628e9
font_02_sfnt_off0005b30f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B30F 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9

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