MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous external links, many pointing to other PDFs, suggesting a link farm or SEO spam tactic. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically identified as a phishing trojan. While no scripts were explicitly extracted, the PDF structure and heuristic firings point towards a malicious document designed to redirect users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9996
Heuristics 6
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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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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF 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.
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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://cdn-cms.f-static.net/uploads/4367923/normal_60590c1981acf.pdf In PDF document text
- https://cdn-cms.f-static.net/uploads/4453907/normal_6052ffceebbd5.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4421040/normal_606c89e42b578.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4424007/normal_5ff34ef24f7bd.pdfIn PDF document text
- https://jejuzuvavat.weebly.com/uploads/1/3/5/3/135384919/5d3d9b70.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4479222/normal_5fee2c5da6643.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4493600/normal_601ef196d2192.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4409246/normal_5fcf1ec40087e.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4386092/normal_606c82a40e33a.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4453720/normal_5fd788461085d.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4379982/normal_5fd107c4d0505.pdfIn PDF document text
- https://ramabubutimelu.weebly.com/uploads/1/3/4/5/134597411/9828ef.pdfIn PDF document text
- https://tuvonozesafuk.weebly.com/uploads/1/3/4/6/134600303/d16128d1b97f7f.pdfIn PDF document text
- https://poturipi.weebly.com/uploads/1/3/4/4/134459049/aed4076c7e0f6.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4459055/normal_5fff33098636f.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://feedproxy.google.com/~r/wb/ENAH/~3/3IgsHNHpEfs/wb?keyword=calculo%20de%20areas%20por%20integrales%20dobles%20ejercicios%20resueltosPDF link annotation
- https://uploads.strikinglycdn.com/files/0ace9ede-ac20-4d36-b75e-762cb13e13df/integral_of_sin3xcos4x.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c6e010a1-710c-4b58-aaaf-7000e38d4f57/zosixenopekanazusen.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/41d2c509-646a-45db-b7e4-935825fd3f7d/84837364516.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/00236bae-f6de-4f70-9cc7-6efdc29e30b1/canon_canoscan_lide_220_flatbed_scanner_software.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/28b76402-9b87-4aba-ab82-f0ce0799adeb/jegizopokuzonuropiz.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/79645e83-9054-42b6-b347-6dda21c89c73/wukepojogixus.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://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_off000119a6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119A6 | 5360 bytes |
SHA-256: 7f41cc651d1c35003598b4541a23a8c989702fbd5994070e3f76d30c37e300c5 |
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font_01_sfnt_off00012beb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12BEB | 12356 bytes |
SHA-256: 4370ebe4af211df9da9318778f2df402cc256685300c03e45668872285206409 |
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