Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d87895d156bffe2…

MALICIOUS

PDF

637.1 KB Created: 2022-02-03 10:42:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 8b7cc3117cc86af20909492e154ffb68 SHA-1: dcb601d42bcb5440a7d9e0eb306677de16fb4466 SHA-256: 5d87895d156bffe221e6f17096fc88c236e3e3c86cb6ff6c0a8ef47422412d88
156 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.2613

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.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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://mifuj.co.za/XSRYdR1H?utm_term=birds+name+in+english+with+pictures+pdf PDF link annotation
    • http://globalbizkorea.com/userData/board/file/30471793082.pdfIn PDF document text
    • https://moniimpex.com/wp-content/plugins/formcraft/file-upload/server/content/files/161140d3308a4f---kovupatorugov.pdfIn PDF document text
    • http://becro-plast.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1611925691886b---35040948865.pdfIn PDF document text
    • http://omniatel.it/wp-content/plugins/formcraft/file-upload/server/content/files/161b1e60b69506---nikiwav.pdfIn PDF document text
    • https://inks.bg/userfiles/file/2150415179.pdfIn PDF document text
    • http://zhodnoceni-penez.cz/is/images/FCKeditor/File/82403166558.pdfIn PDF document text
    • http://lousart.com.br/ckeditor/kcfinder/upload/files/51839091763.pdfIn PDF document text
    • http://studiozammuner.eu/userfiles/files/nikizosewowotedonem.pdfIn PDF document text
    • https://vidaleve.ind.br/ckfinder/userfiles/files/pikejizev.pdfIn PDF document text
    • http://profiklub.sanswiss.cz/files/file/nopalekujelukasaretiti.pdfIn PDF document text
    • https://patriot.ch/wp-content/plugins/super-forms/uploads/php/files/vf0lh9bao9g7v0s8at7a8q18v6/togefebepupumabutadekavop.pdfIn PDF document text
    • http://profiklub.sanswiss.cz/files/file/wovede.pdfIn PDF document text
    • http://pmdrecycling.com/wp-content/plugins/formcraft/file-upload/server/content/files/1616562b2a0968---46498372077.pdfIn PDF document text
    • http://exhibitionchannel.com/upload/wodateroxamawokarufajibav.pdfIn PDF document text
    • https://servingltda.com/userfiles/file/livoluzumi.pdfIn PDF document text
    • http://ceramvetro.net/userfiles/file/zegagonupa.pdfIn PDF document text
    • http://morebricks.com/ckfinder/userfiles/files/66921131033.pdfIn PDF document text
    • http://bingsu.ir/cache/fck_files/file/kawazepiz.pdfIn PDF document text
    • http://edison76.com/clients/5/54/54c13950cbd15a81e6fb4362eab8f273/File/85295426601.pdfIn PDF document text
    • https://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/1615894e366490---fijukudulu.pdfIn PDF document text
    • https://nbtele.com/en/cache/fck_files/file/25847568174.pdfIn PDF document text
    • http://chafewyuok.handysociality.com/upload/files/gavepafexab.pdfIn PDF document text
    • http://www.neslihanonur.com/wp-content/plugins/super-forms/uploads/php/files/5af0b3b4902c68912f4b615fa2e9248b/67976262018.pdfIn PDF document text
    • https://www.projectorrentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/161b82fda9fb1e---mowogudoserodekazaza.pdfIn PDF document text
    • https://laughteronlineuniversity.com/images/upload/files/wizovegorovadogubusuva.pdfIn PDF document text
    • http://theclubburger.com/uploads/files/48498542715.pdfIn PDF document text
    • https://volpatoebrum.com.br/_common/admin/scripts/ckfinder/userfiles/files/nifebeb.pdfIn PDF document text
    • https://myclubowners.travelenvogue.com/userfiles/files/62753694101.pdfIn PDF document text
    • https://www.la-melodie-des-saveurs.fr/ckfinder/userfiles/files/zakuwo.pdfIn PDF document text
    • https://tkpmission.org/wp-content/plugins/formcraft/file-upload/server/content/files/1610602bdcbc0c---bugapajobubomu.pdfIn PDF document text
    • https://theelementrama9.com/userfiles/files/mipewumewovafolazof.pdfIn PDF document text
    • https://jjcfurnituremaker.com/userfiles/files/94790966823.pdfIn PDF document text
    • http://msnladyboy.com/ckfinder/userfiles/files/16220253063.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_off000970aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x970AA 11188 bytes
SHA-256: 1c77b4ca9517c18c95e456aa6962f42da11608c00402496ce3f582daa1e79092
font_01_sfnt_off00098a82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98A82 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0009a19a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A19A 2144 bytes
SHA-256: 3ce5f861239c2ce4254a2eeeb4327b1a997080b5b0d9cde74cacb63e336b199c
font_03_sfnt_off0009ab2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9AB2C 21332 bytes
SHA-256: 9808ee6907a3f2f6c62e778ba4d2838500f25ea721b5db32abb191cca44d170d

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