Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dd94ef343701dd9…

MALICIOUS

PDF

90.0 KB Created: 2021-10-22 16:26:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-26
MD5: 0cbf6ccdf17d24707fc06e103d48dc97 SHA-1: 472ac7daca65a1b8e65f538732cc6845b5b4d04e SHA-256: 3dd94ef343701dd97b937148abeebd674b64e95f298acbcd419ec83c3fa17227
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://crysiq.ru/uplcv?utm_term=bus+management+system+project+report+pdf PDF link annotation
    • https://masterpieces-mallorca.com/wp-content/plugins/super-forms/uploads/php/files/04264e96b2733d79618edc5aba6737f5/lasopasi.pdfIn PDF document text
    • http://sportingclubalbinia.eu/userfiles/files/77382719391.pdfIn PDF document text
    • http://asesorgubernamental.com/images/file/suluno.pdfIn PDF document text
    • http://nutrizionisti.eu/public/thread/risorse/file/17837398838.pdfIn PDF document text
    • https://sapsda.com/SapmaUserfiles/file/14144057418.pdfIn PDF document text
    • http://mineraux-et-lithotherapie.fr/ckeditor/upload/files/84894112730.pdfIn PDF document text
    • http://devison-matras.com/upload/file/nipetuwunupavixe.pdfIn PDF document text
    • http://arcos-eff.it/userfiles/files/xujem.pdfIn PDF document text
    • https://godahoian.com/app/webroot/upload/files/39675480853.pdfIn PDF document text
    • https://gamaconsultores.cl/upload/file/sevab.pdfIn PDF document text
    • http://el-system.jp/uploads/2012/files/polupesariba.pdfIn PDF document text
    • http://ccadl.com/files/20210911094344.pdfIn PDF document text
    • https://metroguards.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1614553a1480cd---weraresulez.pdfIn PDF document text
    • http://www.naturapreserved.com/wp-content/plugins/formcraft/file-upload/server/content/files/1616ccf5403e74---nefixetepo.pdfIn PDF document text
    • http://handgun.ee/media/file/wamilozurofewuxovujiju.pdfIn PDF document text
    • http://depcip.com/app/views/panel/ckfinder/userfiles/files/71527621619.pdfIn PDF document text
    • http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/14ccf16a048932334b518d6a6ce4bd07/83433324291.pdfIn PDF document text
    • https://fresh-cherries.com/ckfinder/userfiles/files/fetuparaxob.pdfIn PDF document text
    • https://juraganmonyet.com/contents/files/93207206074.pdfIn PDF document text
    • http://sineadstone.com/userfiles/file/57792715242.pdfIn PDF document text
    • https://www.naabelectric.com/userfiles/files/toxobuxisawabojowidobi.pdfIn PDF document text
    • https://lynnesnaturaltreats.com.au/wp-content/plugins/super-forms/uploads/php/files/f31c0e09eff7a76c9ca5c95d9e7e2486/11616232679.pdfIn PDF document text
    • http://citty.org/images/uploads/file/36052974769.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_off0000f644.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF644 11220 bytes
SHA-256: 1960062c8fd964abd37246107d2a0d389e4c84a4106c274d2eaf853eaa386a7c
font_01_sfnt_off00011073.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11073 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00012885.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12885 18864 bytes
SHA-256: 0b6c07d74b5a2ef95db96a24c5f3079cdc0f1f59bd1a8c30e49b802f3eaa3756