MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample is a PDF document that leverages a link farm hosted on compromised WordPress sites to redirect users to malicious content. The document body, though heavily obfuscated, suggests a lure for a "professional pilot pdf free download", indicating a phishing or scam attempt. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to deliver a second-stage payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 6
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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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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://drafthe.ru/uplcv?utm_term=everything+explained+for+the+professional+pilot+pdf+free+download PDF link annotation
- https://www.hemoroidklinigi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072bcc8b209d---tapifufusijabudibixum.pdfIn PDF document text
- https://www.mclarenpress.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609556b68f5a1---tuvofudogazinusiwemepeva.pdfIn PDF document text
- https://ildiko-szepsegszalon.hu/userfiles/file/16626913595.pdfIn PDF document text
- http://hoaisonland.vn/upload/files/28766858553.pdfIn PDF document text
- http://cuatro-pr.org/sites/default/files/file/nidikekebuzomeworak.pdfIn PDF document text
- http://built.lu/userfiles/files/71787242350.pdfIn PDF document text
- http://www.socalgreatwhite.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d17f27df4c---posak.pdfIn PDF document text
- https://encouragingmath.com/wp-content/plugins/super-forms/uploads/php/files/a599cb79533ef4509ebead4b3fbb03c8/93472799402.pdfIn PDF document text
- http://naasschoolofmotoring.ie/fckeditor/userfiles/file/rutodulewik.pdfIn PDF document text
- https://zweiund40.com/wp-content/plugins/super-forms/uploads/php/files/fe28q0rq4b7ol50id790s3uca8/14466903200.pdfIn PDF document text
- http://witnesstherealist.com/wp-content/plugins/super-forms/uploads/php/files/f935580af85fa75098191f098de5fd54/26574621059.pdfIn PDF document text
- https://www.baileysmilk.com/wp-content/plugins/super-forms/uploads/php/files/a9a95eebe388e90f5abd346e2d2af0de/31066840427.pdfIn PDF document text
- https://mymango.ru/wp-content/plugins/super-forms/uploads/php/files/7c6a301c5210d14438010d46f74452c5/xunuzasiwukifaratof.pdfIn PDF document text
- https://protechlighting.com/wp-content/plugins/super-forms/uploads/php/files/0bb6f8eccd507308af9a10d218a00831/81313573268.pdfIn PDF document text
- http://fly.no1-yes.com/userfiles/file/tozawowifimotetotofi.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c71b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC71B | 5580 bytes |
SHA-256: f0c1c4692a4cf37af28436b4c5d865229b7276d5e7a44f34e2c7c0cda2161998 |
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font_01_sfnt_off0000da3e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA3E | 11220 bytes |
SHA-256: 8c721dfc6c5ab623cbbc76cba798177c860b6f8e5db5bcecfb989e269059fbd7 |
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