Malicious PDF — malware analysis report

Static analysis result for SHA-256 d07ca0ae3e53eea4…

MALICIOUS

PDF

228.0 KB Created: 2022-03-31 19:11:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-07
MD5: 12e526a5b83bcd397cc61770c7073fcd SHA-1: 0e61bd77dcf3e439ecd0ae2e1e174e5e21968bc9 SHA-256: d07ca0ae3e53eea40e9b4e7e32941805e0f116198f32cb7a282ce3806379284e
166 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file is identified as malicious by ML classifiers and ClamAV, indicating a phishing or malware distribution attempt. The document contains numerous links, including one flagged as an SEO redirector for free downloads, suggesting a lure to trick users into downloading further malicious content. The presence of embedded URLs and the overall structure point towards a phishing campaign, likely using a spearphishing attachment as the initial access vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9797

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://tafugamukizigip.weebly.com/uploads/1/3/0/7/130775106/5560512.pdf In PDF document text
    • http://www.onekaddy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16218c3e98efe7---vikuridekexaked.pdfIn PDF document text
    • https://kefawefixak.weebly.com/uploads/1/3/0/7/130738991/7255701.pdfIn PDF document text
    • http://vitajeans.com/ckfinder/userfiles/files/90459976655.pdfIn PDF document text
    • https://fudakima.weebly.com/uploads/1/3/0/7/130739810/gufibijamupu.pdfIn PDF document text
    • https://adtw1.elfjane.com/ckfinder/userfiles/files/22625743779.pdfIn PDF document text
    • https://womagojewe.weebly.com/uploads/1/3/5/9/135961056/tevekatilak.pdfIn PDF document text
    • http://membre3.trajetplus.fr/userDocs/file/pimetaputefotexepazapesib.pdfIn PDF document text
    • https://investincarpathians.eu/app/webroot/media/files/75934509379.pdfIn PDF document text
    • http://sysquare.com/UserFiles/files/towigetitamopewujoxam.pdfIn PDF document text
    • http://tlca.com/Content/uploads/files/gugoxinesulez.pdfIn PDF document text
    • http://administratieindex.nl/images/uploads/xuzorafesul.pdfIn PDF document text
    • https://tubefikuromurap.weebly.com/uploads/1/3/4/8/134888710/sumujazodamazixokev.pdfIn PDF document text
    • https://piguvedulo.weebly.com/uploads/1/3/4/7/134724556/7438a96.pdfIn PDF document text
    • https://foodexgida.com/uploads/files/81199552396.pdfIn PDF document text
    • http://xn----htbccnijgu6o.xn--p1ai/kcfinder/upload/files/pumobanejezok.pdfIn PDF document text
    • http://knx-shop.ru/admin/ckfinder/userfiles/files/63200683517.pdfIn PDF document text
    • https://gokaveruziniva.weebly.com/uploads/1/3/4/5/134580144/velegef-vifalega-nufikusi-dazisarusadun.pdfIn PDF document text
    • https://stcatherine.ac.ug/wp-content/plugins/formcraft/file-upload/server/content/files/16204a1d436c0c---bisoxukemivekosojudij.pdfIn PDF document text
    • http://www.auditsi.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fae874601dc---41728812969.pdfIn PDF document text
    • http://thepure.com.tw/ckfinder/userfiles/files/jodofugot.pdfIn PDF document text
    • https://vuzodafolo.weebly.com/uploads/1/3/4/7/134732359/5292952.pdfIn PDF document text
    • https://mifuj.co.za/YmrXLWy8?keyword=ella%20minnow%20pea%20books%20a%20millionPDF link annotation
    • https://betenrealestate.com/sites/default/files/file/52667375906.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 extracted file (font_00_sfnt_off00032120.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00032120.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00032120.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32120 18588 bytes
SHA-256: a62dac0fdf7f9a0ce62ee529040e9e3b21eb0ebdf755c458ea9c2383cca8a44c
font_01_sfnt_off000352d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x352D3 10516 bytes
SHA-256: f26a5aea1988bc8324a435a41ed7fd87c2d169448ce59f1028747af802daa453
font_02_sfnt_off00036a85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36A85 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1