Malicious PDF — malware analysis report

Static analysis result for SHA-256 1163935d921e9866…

MALICIOUS

PDF

311.8 KB Created: 2022-02-06 17:57:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 1513463f9009e12998a49eecce23b467 SHA-1: 59b226dd0cf4fe7f8f35d48fc0a4c6aec02cdb15 SHA-256: 1163935d921e9866ce89aa009d33def6f42a3caf2af84baa93c7f14c26a97f42
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7334

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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://yoyep.co.za/XSRYdR1H?utm_term=check+in+check+out+sheet+middle+school PDF link annotation
    • http://netinflux.net/userfiles/file/13217288161.pdfIn PDF document text
    • https://synodradomski.pl/userfiles/file/puxududoworoletoval.pdfIn PDF document text
    • https://bmw-zona.ru/uploads/file/84084693535.pdfIn PDF document text
    • http://korsorlampang.net/user_img/files/25642550613.pdfIn PDF document text
    • http://sungwoo-n.com/userfiles/file/lenepixafumuluw.pdfIn PDF document text
    • https://grupahatak.pl/admin/_fck_files/file/luzaxoz.pdfIn PDF document text
    • http://www.biogreeno.com/cms/ckfinder/userfiles/files/67200642433.pdfIn PDF document text
    • http://spawalnictwo.sapweld.pl/fotki/file/70012057157.pdfIn PDF document text
    • http://waxiangyuan.com/upload_fck/file/2021-9-24/20210924234435116797.pdfIn PDF document text
    • http://liceoadultos.juniorcollege.cl/userfiles/files/popasi.pdfIn PDF document text
    • http://newworldss.com/uploads/file/78744643787.pdfIn PDF document text
    • https://catequesisnavarra.org/guiarte_userfiles/files/16400716703.pdfIn PDF document text
    • http://www.vitrierbxl.be/wp-content/plugins/formcraft/file-upload/server/content/files/1619fb9df4572a---bakur.pdfIn PDF document text
    • http://macierz-grodziec.org/files/file/mazogusasipato.pdfIn PDF document text
    • http://vdadanang.vn/app/webroot/assets/files/gigon.pdfIn PDF document text
    • https://servingltda.com/userfiles/file/wokemikiserimitokaminowiv.pdfIn PDF document text
    • http://greatwalledmond.com/ckfinder/userfiles/files/38662843632.pdfIn PDF document text
    • http://dhs-bank-sample.com/app/webroot/js/kcfinder/upload/files/vegojajaroterijovawi.pdfIn PDF document text
    • http://hyunbulsa.org/~ewedd2/userfiles/file/mawilapasif.pdfIn PDF document text
    • http://www.cargeacrew.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161a703d3ade99---39393981387.pdfIn PDF document text
    • http://sjhrz.com/images/upload/File/67300681637.pdfIn PDF document text
    • https://mysmartedu.com/uploadimages/files/73616402357.pdfIn PDF document text
    • https://aslplastic.com/ckfinder/userfiles/files/9852570583.pdfIn PDF document text
    • http://hillsdale66ersreunion.com/clients/c/c6/c679c52642bc64dd8629b98fb95ccc77/File/16800342959.pdfIn PDF document text
    • https://infotechb2blite.com/bot/ckfinder/uf/files/88537684705.pdfIn PDF document text
    • https://associazionedynamica.it/uploads/file/xopofojog.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_off000474e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x474E9 10596 bytes
SHA-256: 0b85dd54c5a6e95fcd038cf8f0363e5b37894661edf81f1b3f6fff9e3321e6ff
font_01_sfnt_off00048ceb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48CEB 16820 bytes
SHA-256: c509071dc2cc2bdc4140abab6e7ab5cfe2bbd22dc2efe9d63014b99ae73c7ba5
font_02_sfnt_off0004b8d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B8D3 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9