Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e30d37d8e9a8f5d…

MALICIOUS

PDF

81.8 KB Created: 2021-12-08 00:16:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 351ce59a61caf2da0085c1ef72e01f60 SHA-1: b1c0375c74f53160504cd9e07a4296a78a4c46f7 SHA-256: 4e30d37d8e9a8f5dadcef5ecc58faad02035f23b3c3bb82928db275908924895
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

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
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. 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://hotelangela.hu/userfiles/file/jarepufiwazelutexozab.pdf In PDF document text
    • https://www.hermanosvalerorecio.com/ckfinder/userfiles/files/80845904449.pdfIn PDF document text
    • http://saikunghouse.hk/userfiles/83633215332.pdfIn PDF document text
    • https://tuabogadoangel.com/wp-content/plugins/super-forms/uploads/php/files/0bafaaf04077e2537b44e59ea4e2631f/16350357262.pdfIn PDF document text
    • https://babetravelling.com/ckfinder/userfiles2/files/saridogo.pdfIn PDF document text
    • http://riskhedgetech.com/uploaded/file/124285889561480ae44c2d1.pdfIn PDF document text
    • https://oreopay57.com/ckfinder/userfiles/files/zigakuzufo.pdfIn PDF document text
    • http://jrpst.pl/userfiles/file/44917992916.pdfIn PDF document text
    • http://nrgmedia.hu/files/file/43020272375.pdfIn PDF document text
    • http://indago-rovigo.it/userfiles/files/golupozopo.pdfIn PDF document text
    • http://prota.ru/upload/files/vivofakedilixasoli.pdfIn PDF document text
    • http://mini-garden.ru/userfiles/file/99439620123.pdfIn PDF document text
    • https://best-turbos.com/wp-content/plugins/super-forms/uploads/php/files/bb695813dea8517fe57eac5eab231068/27196189689.pdfIn PDF document text
    • https://laundrybyconrads.com/nbloom/fckuploads/file/dixifafazerureli.pdfIn PDF document text
    • http://orchid-daikanyama.com/userfiles/file/55548791033.pdfIn PDF document text
    • https://people11people.gr/uploads/File/80511599012.pdfIn PDF document text
    • https://www.blackandwhite-salon.com/wp-content/plugins/super-forms/uploads/php/files/tmp/3395474540.pdfIn PDF document text
    • https://maggievanostrand.com/uploads/media/file/82003372982.pdfIn PDF document text
    • https://www.lindopoint.it/wp-content/plugins/super-forms/uploads/php/files/3c9c9231579fd4f5feb1182b64b1f60b/78728991062.pdfIn PDF document text
    • http://bulk-supplies.com/userfiles/files/sitabosezata.pdfIn PDF document text
    • http://vietcem.vn/public/default/ckeditor/files/82930974344.pdfIn PDF document text
    • https://xn--90aoja6ahg5ds.xn--p1ai/uploads/files/sesoxawi.pdfIn PDF document text
    • http://pasarantogel2.com/contents/files/47699124916.pdfIn PDF document text
    • https://gulfb2b.com/userfiles/file/zopetebezegasinuj.pdfIn PDF document text
    • http://leton.pl/userfiles/file/16059974009.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Gsjc/~3/KGDyd8lM0uI/uplcv?utm_term=el+juego+de+la+vida+pdfPDF 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 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_off0000d549.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD549 20720 bytes
SHA-256: 5be6c5b63c30c0eabf0bac741354f68e1a7978191ae3766dc2525317c3a877db
font_01_sfnt_off00010add.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10ADD 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off00012181.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12181 10480 bytes
SHA-256: b6f29e145aeca631505f1ea83093b8f91f802270d8856c4b3059b6a39e04ca6f