Malicious PDF — malware analysis report

Static analysis result for SHA-256 4de567d3534a869b…

MALICIOUS

PDF

294.7 KB Created: 2022-03-15 18:53:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-29
MD5: cc78ac0e137e52e0849496ffdd921177 SHA-1: d530f753eaa10189df153f1adddd6a7e6575e57d SHA-256: 4de567d3534a869b65e265002d674195fc23adad291a57c08009af55311bbdc1
174 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9425

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
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://tottazo.com/userfiles/file/34318639713.pdf In PDF document text
    • https://liguecasa.mmsfoot.com/stock/file/dadaxud.pdfIn PDF document text
    • https://ekometal.com/kcfinder/upload/files/74074236022.pdfIn PDF document text
    • https://www.l-games.jp/js/ckfinder/userfiles/files/76256903774.pdfIn PDF document text
    • http://sevoir.hu/uploads/file/97531527338.pdfIn PDF document text
    • http://studiosiriosrl.it/userfiles/files/zofuvulorebosidenone.pdfIn PDF document text
    • https://areshin.ru/wp-content/plugins/super-forms/uploads/php/files/b4fb939483003ea295c55dcfec7aef7a/25173403767.pdfIn PDF document text
    • https://tecsal.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16208f675d3a0c---83347787684.pdfIn PDF document text
    • https://siyata.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/1621971e44880c---46304339961.pdfIn PDF document text
    • http://vswet.ru/f/nujevapepa.pdfIn PDF document text
    • http://stmrcstvm.com/userfiles/file/44187291072.pdfIn PDF document text
    • https://bowserqualicumbay.gocascadia.com/images/cms/file/1069151591.pdfIn PDF document text
    • http://iuppiteredizioni.it/kcfinder/upload/files/diwurudonofiriloniza.pdfIn PDF document text
    • https://fceresources.com/ckfinder/userfiles/files/80087414193.pdfIn PDF document text
    • http://prochem.vn/images/uploads/files/93945428016.pdfIn PDF document text
    • http://kindervakantieweekdeurne.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16225dcc7ce0cc---37296299505.pdfIn PDF document text
    • http://yijianjiance.com/userfiles/file/20220205195912_1493785269.pdfIn PDF document text
    • https://www.apgicl.com/public/files/assets/ckeditor/kcfinder/upload/files/94338395774.pdfIn PDF document text
    • http://monthclean.com/uploads/files/202203131048268577.pdfIn PDF document text
    • http://nrtz.fundacja-spektra.pl/upload/files/5852485708.pdfIn PDF document text
    • https://loheb.co.za/XSRYdR1H?utm_term=nissan+almera+2013+service+manualPDF 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_off00042e5c.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00042e5c.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00042e5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x42E5C 10784 bytes
SHA-256: a19e949dbe2e7d4defe9aa4e6746c5298ce1ad86cea6336d708b2c6dbef46433
font_01_sfnt_off0004474d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4474D 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00045e68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x45E68 17624 bytes
SHA-256: 60a1e24721e52cbe73ade2fe2095f1d63de20d35257f347f5da6f14c21e26a53