MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by multiple heuristics as containing a link farm pointing to compromised CMS upload directories, indicating a phishing or redirection attempt. ClamAV also detected it as a Pdf.Phishing.Trojan. The ML classifier assigned a high probability of maliciousness. The document body is heavily obfuscated and unreadable, providing no direct user-facing content, but the embedded URLs and heuristic findings strongly suggest a malicious intent to redirect users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://cruiseship.cruises/wp-content/plugins/super-forms/uploads/php/files/ebupvfi4jc64qqj4mct5s30b73/joxaroluwuvezurus.pdf In PDF document text
- https://ludifrance.fr/userfiles/file/11996630523.pdfIn PDF document text
- https://www.d-table.com/wp-content/plugins/super-forms/uploads/php/files/5403ca514a9776866aa8326cdd22b8c9/71058355706.pdfIn PDF document text
- https://smoothnomad.com/wp-content/plugins/super-forms/uploads/php/files/m8sur4bab7f902tk5cuma44fc7/wuxekafolozezaj.pdfIn PDF document text
- https://harkakotony.hu/UserFiles/file/wutupigiwuforevejo.pdfIn PDF document text
- http://photographybynami.com/wp-content/plugins/formcraft/file-upload/server/content/files/160800479798f9---xekagikekoleka.pdfIn PDF document text
- http://www.colegiometa.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/160a3fde02b473---wibetiluzazujemabemulu.pdfIn PDF document text
- https://abeess.com/userfiles/file/77762399859.pdfIn PDF document text
- http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083605a9336f---jufaru.pdfIn PDF document text
- https://petek.biz/resimler/files/fokeroveremelizotukaf.pdfIn PDF document text
- http://cuatro-pr.org/sites/default/files/file/rikoxalopowobinokowir.pdfIn PDF document text
- https://husvagnsexpo.se/wp-content/plugins/formcraft/file-upload/server/content/files/16093f4f1f0916---napuzozi.pdfIn PDF document text
- https://ols.lighting/wp-content/plugins/super-forms/uploads/php/files/41c7cda63ec1f0e533a71ad366921881/67843716905.pdfIn PDF document text
- http://smartarts.bg/userfiles/file/89338030248.pdfIn PDF document text
- https://www.oneirishrover.com/wp-content/plugins/super-forms/uploads/php/files/37834c66e0b4522cf87adcc240e26b34/dewasimakorupitad.pdfIn PDF document text
- http://bagandpack.ru/wp-content/plugins/super-forms/uploads/php/files/39765f635d17138912c2e2d5111905da/64893592988.pdfIn PDF document text
- http://christembassydocklands.org/wp-content/plugins/super-forms/uploads/php/files/5cee34fdc581c55e1627f73869716e94/diwizebetokalufomozopu.pdfIn PDF document text
- http://i-daa-wl.de/userfiles/18202061162.pdfIn PDF document text
- https://artenika.pl/fck/file/sodosor.pdfIn PDF document text
- http://vasilii-orlov.fun/wp-content/plugins/super-forms/uploads/php/files/61e20617070cfac2226f2ef5801a6af3/leral.pdfIn PDF document text
- https://amd-export.com/site/upload/file/80090845164.pdfIn PDF document text
- http://stpatricksreunion.com/clients/84553/File/81454264072.pdfIn PDF document text
- http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160893333ee804---7517422596.pdfIn PDF document text
- http://sity-luxe.ru/userfiles/file/sujamab.pdfIn PDF document text
- https://gccpay.net/wp-content/plugins/super-forms/uploads/php/files/69659aeff50cc9eaa5dd41ff8088c343/mukabigafotolofativavilem.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=something+good+is+going+to+happenPDF 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 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_off0001013d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1013D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00011954.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11954 | 10768 bytes |
SHA-256: 8cc88be481dd3c477e6c7b13ef509a22dc81f9211d987508b83c2bd945b1bfd4 |
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font_02_sfnt_off000131ae.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x131AE | 17180 bytes |
SHA-256: 1e046af6209b9917cc1f9704677bbe10425b4460338fe2487e90c6f084b1111e |
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