Malicious PDF — malware analysis report

Static analysis result for SHA-256 011c9379b54ffbe9…

MALICIOUS

PDF

351.5 KB Created: 2022-01-08 20:43:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-28
MD5: a82c28896d7d0f9ef562fae67939ad0a SHA-1: c4909fd8b85a46b0dfb32c07ffb12bfdaa139e40 SHA-256: 011c9379b54ffbe944de97f195d57835dfeec9391c649ac3136b92b6f7f39bf1
144 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7724

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.
  • 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 http://dgjinhak.kr/DATA/upload/files/202112030614147816.pdf In PDF document text
    • http://plkorea77.com/ckupload/files/vizobadimosonazamuxobulot.pdfIn PDF document text
    • http://hzzxtl.com/UploadFile/file/20211211025858508.pdfIn PDF document text
    • https://medarbindia.org/ckfinder/userfiles/files/9475715280.pdfIn PDF document text
    • http://kedokteran.untan.ac.id/asset/ckeditor/plugins/kcfinder/upload/files/11305204694.pdfIn PDF document text
    • http://degrossier.nl/uploads/file/rodigubemejalinefisoxekox.pdfIn PDF document text
    • http://1472bond.com/upload/Fckeditor/file/56792869899.pdfIn PDF document text
    • https://www.landalastadservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/161d16ab2a3cae---timoboxogumufodamuj.pdfIn PDF document text
    • http://autord.ca/site-uploads/7789702675.pdfIn PDF document text
    • http://sungwoneng.com/upfile_editor/2021/files/47942537596.pdfIn PDF document text
    • https://tekstilkentrehber.com/upload/ckfinder/files/gizudasanoj.pdfIn PDF document text
    • http://technoprofile.ru/userfiles/file/51963935563.pdfIn PDF document text
    • http://www.ak-kresy.pl/newsysn/kcfinder/upload/files/bawafawisudiwefoj.pdfIn PDF document text
    • https://lisacutler.com/wp-content/plugins/formcraft/file-upload/server/content/files/161b264462869e---wigisofagewesetuledeji.pdfIn PDF document text
    • http://le-lemniscus-incandescent.fr/ckeditor/upload/files/lesaxinexavigesunijipeli.pdfIn PDF document text
    • http://investmedic.com/app/webroot/assets/js/kcfinder/upload/files/mipinax.pdfIn PDF document text
    • http://otelm4b.ru/admin/ckfinder/userfiles/files/55467882013.pdfIn PDF document text
    • http://sobinco.cz/ckfinder/userfiles/files/10408306506.pdfIn PDF document text
    • http://generaldistco.com/images/file/79046579213.pdfIn PDF document text
    • http://daiichihr.com/uploads/news_file/52722636520.pdfIn PDF document text
    • http://poslovniimenik.net/firme_data/files/71616416143.pdfIn PDF document text
    • https://www.systemswecare.com/admin/kcfinder/upload/files/69800281417.pdfIn PDF document text
    • http://c-amc.com/upload/files/67972655309.pdfIn PDF document text
    • http://fbrasil.com/userfiles/file///84532464199.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/vItLtdF7Pec/uplcv?utm_term=android+games+offline+2019PDF link annotation
    • 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 extracted file (font_00_sfnt_off00050f3e.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00050f3e.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00050f3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50F3E 18416 bytes
SHA-256: 88a90aa43f65add76d47c7d15729286e9d0c0ab9387a813f2ffe51eee600037c
font_01_sfnt_off00053f81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53F81 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off00055625.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x55625 11040 bytes
SHA-256: 4f10f526ebc49ff283f9c26b57f788deb1d780d1be8ff714d9fd9f52ff2f291f