MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a large number of external URIs, many of which point to compromised CMS upload storage or disposable hosting. These links likely serve as a link farm to redirect users to malicious sites for phishing or malware delivery. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9971
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF 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.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall 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.
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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe 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.
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Embedded URL info EMBEDDED_URLOne 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://pistant.ru/uplcv?utm_term=what+do+all+cells+in+which+photosynthesis+takes+place+have+in+common PDF link annotation
- https://pt2-turbo-j3t.com/contents/files/gujabikojokamepa.pdfIn PDF document text
- http://oishisushigd.com/uploads/files/23265323594.pdfIn PDF document text
- http://parbatsamajjapan.com/img/files/files/41831124665.pdfIn PDF document text
- http://pericosrentcar.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/161537cc7d5f19---59581671086.pdfIn PDF document text
- https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161411bc104b23---jisulu.pdfIn PDF document text
- http://cjpharmtech.com/upload/files/mojugojumozuwalapaxexig.pdfIn PDF document text
- https://mycocoa.org/images/upload/files/30623490097.pdfIn PDF document text
- http://files.ibiza-ferien.de/file/27021751916.pdfIn PDF document text
- http://lonsdale.ee/tipikas/uploads/sisupildid/luzuxamamebibufutedofa.pdfIn PDF document text
- https://ripedesign.com/app/webroot/files/fckeditor/file/rasusipelikoriwunolefaj.pdfIn PDF document text
- http://syuncyoku.jp/upload/file/64182675091.pdfIn PDF document text
- http://e-menu.hu/editor_up/7128141948.pdfIn PDF document text
- https://teamcode.net/upload/files/vijubitobu.pdfIn PDF document text
- http://liyangah.com/Upload/file/39048877491.pdfIn PDF document text
- https://keluargamimpi.com/contents/files/24363096968.pdfIn PDF document text
- http://www.offshoreyachts.net/web_upload/editor/files/fukibo.pdfIn PDF document text
- https://triosms.com/userfiles/file/bevalelizusofavezu.pdfIn PDF document text
- http://e-motyle.natura2000.pl/imgturysta/files/46727098450.pdfIn PDF document text
- http://nc2e.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1616124fe4cea6---49163810816.pdfIn PDF document text
- https://www.naabelectric.com/userfiles/files/57264602761.pdfIn PDF document text
- http://amandatour.ru/js/ckfinder/userfiles/files/50125316709.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.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c262.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC262 | 18324 bytes |
SHA-256: c17cde2df465fc64f6f12c4e025419f5d1e6b0e1abc014deb16fd63a686fccad |
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font_01_sfnt_off0000f130.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF130 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010947.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10947 | 11032 bytes |
SHA-256: 5a98ae43d479c6ea824eb1e670f9115bbf346e5a55d80fc84db29cc800325b58 |
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