Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d36554ea043e65…

MALICIOUS

PDF

305.2 KB Created: 2022-03-20 07:10:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 1111cc1078a2ddd609aa7b6436d13cee SHA-1: 73083576f1e4e0952dafe37a5ab0bca6fb844fb9 SHA-256: c5d36554ea043e654119606507f79ed6c09c8c81027f99786cc5fb2caaceef43
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6972

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://norin.co.za/XSRYdR1H?utm_term=momoland+banana+chacha PDF link annotation
    • http://penzion-u-zamku.cz/files/file/zalenozunav.pdfIn PDF document text
    • http://cx-gl.hu/images/files/69370221280.pdfIn PDF document text
    • http://x-mobio.com/upload/files/15513460351.pdfIn PDF document text
    • https://valergences.fr/userfiles/file/83801219689.pdfIn PDF document text
    • http://interel-rus.ru/test/sites/default/files/file/59374191439.pdfIn PDF document text
    • https://cbolean.com/wp-content/plugins/super-forms/uploads/php/files/3b7ca9538602f3436d5e6eb794c3e5ac/luxumubelivi.pdfIn PDF document text
    • http://libron.pl/fckupload/assets/file/tubironisemogimuf.pdfIn PDF document text
    • https://www.magrinienergia.it/_admin/kcfinder/upload/files/46950278331.pdfIn PDF document text
    • https://marketlayer.com/assets/kcfinder/upload/files/donagapitixibuguxom.pdfIn PDF document text
    • http://agro-pasz.pl/ckfinder/userfiles/files/71688407718.pdfIn PDF document text
    • http://rayanchem.com/d/files/xadujut.pdfIn PDF document text
    • http://bausite.ru/userfiles/files/36976718017.pdfIn PDF document text
    • http://masonhn.com/d/files/rifotalemavudop.pdfIn PDF document text
    • http://adacu.org/userfiles/file/20220308092058.pdfIn PDF document text
    • http://555banket.ru/kcfinder/upload/files/20823167045.pdfIn PDF document text
    • http://silexsys.com/ckeditor/kcfinder/upload/files/85182665153.pdfIn PDF document text
    • http://jagodkaprzedszkole.pl/userfiles/file/zoforofabumab.pdfIn PDF document text
    • https://rajatotogroup4.com/contents/files/58894057870.pdfIn PDF document text
    • https://grancom.by/upload/docs/59222986747.pdfIn PDF document text
    • https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/162344902d2cff---75793784253.pdfIn PDF document text
    • https://clove7.com/userfiles/file/65488218864.pdfIn PDF document text
    • https://zlatartopalovic.rs/files/5854341626.pdfIn PDF document text
    • https://rwd.webseo.tw/upload/files/wiwovogafim.pdfIn PDF document text
    • http://sltd728.chinalandscapes.com/data/attachment/file/surigutepe.pdfIn PDF document text
    • http://restokrat.info/userfiles/file/47508416044.pdfIn PDF document text
    • http://www.kirmatas.org.tr/kcfinder/upload/files/74555272025.pdfIn PDF document text
    • http://www.combatsim.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1621830615158c---dekutoxepunisewezodu.pdfIn PDF document text
    • http://cuspsurgeons.com/admin/kcfinder/upload/files/xowas.pdfIn PDF document text
    • http://pinturasoltra.com/images/slider/files/dofaparij.pdfIn PDF document text
    • http://genesisglobalbd.com/assets/ckeditor/kcfinder/upload/files/kakidej.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_off000454f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x454F4 10180 bytes
SHA-256: d4dd3d9de5f7a13f419b67f64c83fc53a4df0ab7053705961e76d7179ab9423c
font_01_sfnt_off00046b6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46B6F 19244 bytes
SHA-256: 9a5c1a078886a56ec03008c80c527e6bdb2377393d5629554ef12fbdfe37f681
font_02_sfnt_off00049e29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49E29 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9