Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5da3983768eaffb…

MALICIOUS

PDF

279.2 KB Created: 2022-04-11 22:30:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: c4f0dccbd11af5616b22973ed483cc2c SHA-1: 34ea8e31872ecc9f1a17ad14ca7e9ce44b7bd53d SHA-256: c5da3983768eaffbe33682272ccd234e30c7feea5d8f507ab0136509cb0916cd
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7513

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://sunuf.co.za/XSRYdR1H?utm_term=tesla+electric+cars PDF link annotation
    • https://folutiniku.weebly.com/uploads/1/3/1/8/131871586/9381709.pdfIn PDF document text
    • https://nupuwuzom.weebly.com/uploads/1/3/1/4/131438231/joduwareja.pdfIn PDF document text
    • http://millvalley.com/wysiwygfiles/file/69966476520.pdfIn PDF document text
    • http://www.rolstoellift.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620886d6a4b17---zetufatenogilabaxogaroke.pdfIn PDF document text
    • https://ruzudewalaxuge.weebly.com/uploads/1/3/4/4/134497745/navexenuje.pdfIn PDF document text
    • https://temegefa.weebly.com/uploads/1/3/4/5/134583031/keteduzu.pdfIn PDF document text
    • https://lemisisax.weebly.com/uploads/1/3/4/4/134494561/duzowu-jakom-numedex-jezugoxufuw.pdfIn PDF document text
    • http://phuwangnam.com/user_file/file/subiwubajukaza.pdfIn PDF document text
    • https://niwurakoj.weebly.com/uploads/1/3/4/5/134588258/vinufo-buwut-piperufed-sukedugekiruze.pdfIn PDF document text
    • https://imagebrandstudio.com/userfiles/file/xumafexa.pdfIn PDF document text
    • https://tibefuwejar.weebly.com/uploads/1/3/4/3/134332688/witute.pdfIn PDF document text
    • http://adm-zhemtala.ru/files/files/26150596975.pdfIn PDF document text
    • https://pelusebilad.weebly.com/uploads/1/3/4/2/134234641/c37ed26442d6f.pdfIn PDF document text
    • https://nusuvonofa.weebly.com/uploads/1/3/1/8/131872273/8e4f9fec6b3.pdfIn PDF document text
    • https://virenogapugutu.weebly.com/uploads/1/3/4/6/134635416/b9437b8ecdb.pdfIn PDF document text
    • https://mobefoba.weebly.com/uploads/1/3/0/7/130776725/2815399.pdfIn PDF document text
    • https://www.tocbirsen.org.tr/ckfinder/userfiles/files/22448827224.pdfIn PDF document text
    • http://bdn10.cz/files/file/pusapoduri.pdfIn PDF document text
    • https://texunufoxij.weebly.com/uploads/1/4/1/3/141352698/temumoretinuvisew.pdfIn PDF document text
    • https://jotisevixenitu.weebly.com/uploads/1/4/1/2/141258578/jokilunujot-xawariko.pdfIn PDF document text
    • https://suwurivuta.weebly.com/uploads/1/3/0/7/130775320/747da3.pdfIn PDF document text
    • http://alnadaoil.com/userfiles/file/31115385332.pdfIn PDF document text
    • https://bitree.ru/ckfinder/userfiles/files/viferewunurerolago.pdfIn PDF document text
    • https://gebaxugore.weebly.com/uploads/1/3/4/5/134594027/3940179.pdfIn PDF document text
    • http://cdenito.net/userfiles/file/rosoluvese.pdfIn PDF document text
    • https://mujonutuxow.weebly.com/uploads/1/3/4/3/134336111/37afb.pdfIn PDF document text
    • https://licensing-centre.poweredbypaf.com/files/17598114974.pdfIn PDF document text
    • https://www.medicalart.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1624f01a60a3a1---nuruk.pdfIn PDF document text
    • https://www.modianodesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/16228f83888890---terutu.pdfIn PDF document text
    • https://sinukunub.weebly.com/uploads/1/3/4/4/134431456/90fdf022.pdfIn PDF document text
    • https://xuvamifete.weebly.com/uploads/1/3/0/8/130874567/lokubadoka.pdfIn PDF document text
    • https://buxajade.weebly.com/uploads/1/3/4/8/134880022/pajulej.pdfIn PDF document text
    • https://fumuzuwuwuwupu.weebly.com/uploads/1/3/0/9/130969925/1ee210.pdfIn PDF document text
    • https://dehaventransportation.com/home/de/public_html/ckfinder/userfiles/files/42454540735.pdfIn PDF document text
    • http://genesisglobalbd.com/assets/ckeditor/kcfinder/upload/files/49768144297.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_off0003ee2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3EE2E 9960 bytes
SHA-256: 15be4cadac4e1f4a0915240ff8291f8388ea1b20c9b50e63236863ce57bf74e9
font_01_sfnt_off00040458.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40458 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00041c6a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x41C6A 18816 bytes
SHA-256: 0e6b12a44ec878ed77077d2149438258134cf26db97b7435a2d0ed617a3bf953

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