Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa87cb5c84048c41…

MALICIOUS

PDF

545.1 KB Created: 2022-04-06 21:12:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: c4d9f2f53f6cb690afcd4c3bea62b862 SHA-1: d28accdd1d292407a4ddfecbd9c4370a8e2f468c SHA-256: aa87cb5c84048c41f7fbde535bd644d5782471ed003d10ee52e2ec62b178505c
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.5228

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://tevav.co.za/XSRYdR1H?utm_term=1066+the+year+of+the+conquest+pdf PDF link annotation
    • http://sun-dr.com/uploads/files/202203120746489864.pdfIn PDF document text
    • http://h-n-s.net/userfiles/file/sadip.pdfIn PDF document text
    • https://gudesikoz.weebly.com/uploads/1/3/4/3/134374550/temovelagevovozuve.pdfIn PDF document text
    • https://xiwirananuwiro.weebly.com/uploads/1/3/1/0/131070481/8700055.pdfIn PDF document text
    • https://jupisururixed.weebly.com/uploads/1/3/4/3/134339091/8357969.pdfIn PDF document text
    • https://gokemulo.weebly.com/uploads/1/4/1/3/141315306/tugotusadevo_dijupop_nowuw.pdfIn PDF document text
    • https://vazemewezasal.weebly.com/uploads/1/3/0/7/130775722/03c49092e20a4b6.pdfIn PDF document text
    • https://zudimawavisutet.weebly.com/uploads/1/3/1/6/131606198/1207204.pdfIn PDF document text
    • https://filajusarapobu.weebly.com/uploads/1/3/4/7/134761194/kojalukofapa-gobewe-rovape.pdfIn PDF document text
    • http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/1622f2c82dd702---bukufewokimedixo.pdfIn PDF document text
    • https://muzezibabut.weebly.com/uploads/1/3/0/7/130739211/bitajuzupoba.pdfIn PDF document text
    • https://beripoxepi.weebly.com/uploads/1/3/5/3/135325525/tofepijof-wubama-fewopojas-xevivagufufokes.pdfIn PDF document text
    • http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1621f4db45994e---14222901719.pdfIn PDF document text
    • http://igigeothermal.jp/userfiles/file/muvukalubimajoroso.pdfIn PDF document text
    • https://wexokoxenasebun.weebly.com/uploads/1/3/1/4/131406289/bejon.pdfIn PDF document text
    • https://destination.irinadempsey.ru/userfiles/file/61242644824.pdfIn PDF document text
    • http://donghobaoan.com/uploads/files/mulexesew.pdfIn PDF document text
    • http://www.dispatchls.com/backend/web/kcfinder/upload/files/xozuvabatuzek.pdfIn PDF document text
    • http://gaudi.tw/upload/file/20144305721.pdfIn PDF document text
    • https://jawuzinirofona.weebly.com/uploads/1/3/4/8/134886132/xesoramimetof.pdfIn PDF document text
    • https://woziwapimarezex.weebly.com/uploads/1/3/5/4/135400795/4422545.pdfIn PDF document text
    • https://dofikusoru.weebly.com/uploads/1/3/4/4/134472045/fufaxu-lajumajopog-ferogozu-tesofato.pdfIn PDF document text
    • http://technology-mp.it/userfiles/files/65747900136.pdfIn PDF document text
    • https://neletataw.weebly.com/uploads/1/3/1/3/131398134/xamapuxenap.pdfIn PDF document text
    • http://balalajka.ompom.se/media/bizidadizifo.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_off0008140c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8140C 18196 bytes
SHA-256: 4048e2fca8738eb58f779e3d8e77614564b4e579800c04ac590f268b49104677
font_01_sfnt_off000843bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x843BC 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00085bd3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85BD3 11184 bytes
SHA-256: 5a14a8893f8069f11fac2badf7d49a0e0eadc5d1812741dbdbd9212228a71dd9

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