Malicious PDF — malware analysis report

Static analysis result for SHA-256 af21290118b681a7…

MALICIOUS

PDF

211.1 KB Created: 2022-04-11 18:33:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: 8454a4e43ca9fa318815575d4ec85fff SHA-1: df9d6e932d5c32c0de1bcd0e123af236e105efcd SHA-256: af21290118b681a71894bf1496dcd6d07d436042589584c9fb924b1fdc16a24a
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9959

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://yubit.co.za/YmrXLWy8?keyword=99%20names%20of%20allah%20bookmark PDF link annotation
    • https://relorurexo.weebly.com/uploads/1/3/5/3/135391300/41ab00cea47481.pdfIn PDF document text
    • https://www.tocarufar.com/sgc/Assets/Plugins/CKEditor/kcfinder/Uploads/files/mobofipituw.pdfIn PDF document text
    • http://wintec-samu.hu/uploads/files/34928853020.pdfIn PDF document text
    • https://tunhuaduytan.com/upload/userfiles/files/mubom.pdfIn PDF document text
    • https://wonenizawelob.weebly.com/uploads/1/3/4/3/134315845/lijukusof-sikovis.pdfIn PDF document text
    • https://jejuzesegolazu.weebly.com/uploads/1/4/1/3/141332155/vupejelijurediteko.pdfIn PDF document text
    • https://nhatngudongkinh.com/upload/ckupload/files/88118393364.pdfIn PDF document text
    • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1624524530d8bb---54795654350.pdfIn PDF document text
    • https://donudokenib.weebly.com/uploads/1/3/4/6/134695728/jafaw.pdfIn PDF document text
    • https://dakubazelup.weebly.com/uploads/1/3/1/4/131454222/8489995.pdfIn PDF document text
    • https://apgicl.com/public/files/assets/ckeditor/kcfinder/upload/files/86959882872.pdfIn PDF document text
    • https://wubigunes.weebly.com/uploads/1/3/4/5/134507070/9246000.pdfIn PDF document text
    • http://www.dinapart.net/frontend/web/kcfinder/upload/files/90360312255.pdfIn PDF document text
    • https://scalping.ir/data/files/file/22412687580.pdfIn PDF document text
    • https://gujaratisamajparis.org/upload/files/64860939130.pdfIn PDF document text
    • http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/1622612325ce24---tawif.pdfIn PDF document text
    • https://lewovabarififu.weebly.com/uploads/1/3/1/4/131453312/33d76.pdfIn PDF document text
    • https://zulukewawebipu.weebly.com/uploads/1/3/4/7/134745728/93bde6f.pdfIn PDF document text
    • http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/1622f4d740b898---58637219790.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_off0002de64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2DE64 18332 bytes
SHA-256: 294e8a51ca44dfc3e774f813f474fc9d8e9605f9527d89bde6db8fb280206253
font_01_sfnt_off00030e0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30E0D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00032624.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32624 10592 bytes
SHA-256: 2424849b6f05dd265457cf8aae549512606c14823ee35147ecb744e9e26869f6

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