MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, directing users to various URLs, some hosted on compromised CMS uploads. The presence of a 'download button' lure further suggests a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and link farm behavior are consistent with techniques used to deliver second-stage payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://oniceh.ru/uplcv?utm_term=free+fire+download+with+obb+file PDF link annotation
- http://tele-klass.ru/i/upload/files/82882238320.pdfIn PDF document text
- https://leicht-spb.ru/wp-content/plugins/super-forms/uploads/php/files/7a647c9943e30de942d43af66486057e/82531758840.pdfIn PDF document text
- http://talcmanagement.com/uploaded_files/userfiles/files/vujizuzewepus.pdfIn PDF document text
- http://kalkulacka-hypo.cz/userfiles/files/12984134396.pdfIn PDF document text
- http://bakineshr.az/ckfinder/userfiles/files/nisupirumesukujewika.pdfIn PDF document text
- https://sanagustin.cl/files/76591906097.pdfIn PDF document text
- https://www.artikel238.nl/emmwebbit/resources/ckfinder/userfiles/files/foket.pdfIn PDF document text
- https://bilalyapidekorasyon.com/userfiles/file/kizinuzezarebudamen.pdfIn PDF document text
- http://turystyka.powiatlubartowski.pl/admin/ckfinder/userfiles/files/78626322194.pdfIn PDF document text
- http://www.prakashirrigation.com/uploads/fck/files/37062636828.pdfIn PDF document text
- https://vico-immobilien.com/ckfinder/userfiles/files/15978383092.pdfIn PDF document text
- http://cameronhaddock.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135b487bc3f3---48542528079.pdfIn PDF document text
- http://greenhousehotel.vn/uploads/image/files/tokokufo.pdfIn PDF document text
- http://ihanzao.com/userfiles/file/20210916020249_1829947850.pdfIn PDF document text
- https://familienbilstrup.dk/ckfinder/userfiles/files/patuxuten.pdfIn PDF document text
- https://gaziemirkentkonseyi.com/upload/files/95937169969.pdfIn PDF document text
- http://www.focitabor.hu/userfiles/file/79691493507.pdfIn PDF document text
- http://www.slappedtogether.com/editoruploadfiles/file/42976168878.pdfIn PDF document text
- http://rrmkaryacollege.org/rrmkarya/userfiles/file/runubukofifinikeja.pdfIn PDF document text
- https://happy-playground.gr/uploads/_uploads/files/90268147632.pdfIn PDF document text
- http://microcement.ua/userfiles/file/monigavuzukegu.pdfIn PDF document text
- https://messianic.live/wp-content/plugins/super-forms/uploads/php/files/64571ef00ab958ddb73ad357cdba2f59/17861465526.pdfIn PDF document text
- http://agriturismolionsfarm.it/userfiles/files/63213468014.pdfIn PDF document text
- https://equator-maritime.com/userfiles/file/sotusosofeb.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_off0000d397.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD397 | 10488 bytes |
SHA-256: 338a64c078df8095d88ebd06094133bc714646972cf984f734d63433dda53e75 |
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font_01_sfnt_off0000eb5c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB5C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001036e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1036E | 17280 bytes |
SHA-256: 7b54d3a54becb1830354885b9d5105c288651704702852a693e36585ca044f3c |
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