MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous external links, many pointing to SEO redirectors and potentially malicious content, as indicated by the 'PDF_SEO_LINK_FARM' and 'PDF_SEO_UTM_REDIRECTOR_LINK' heuristics. The ClamAV detection and ML classifier strongly suggest malicious intent, likely for phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded URLs point towards a lure to download further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9987
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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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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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://pelibifir.ru/wix?keyword=el+eclipse+augusto+monterroso+analisis PDF link annotation
- https://static.s123-cdn-static.com/uploads/4382952/normal_5fec624591fa1.pdfIn PDF document text
- https://bemetezebore.weebly.com/uploads/1/3/4/8/134882820/66f3fdece8f.pdfIn PDF document text
- https://merebidoso.weebly.com/uploads/1/3/4/3/134344951/96e8fdfa9.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4446921/normal_601174f423502.pdfIn PDF document text
- http://ca-management.website/95486380263bt30h.pdfIn PDF document text
- https://rogifegupoxixo.weebly.com/uploads/1/3/4/0/134040774/xesiluvur.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4409425/normal_6032af8d2be9b.pdfIn PDF document text
- https://fajimidisuwa.weebly.com/uploads/1/3/1/6/131606183/xojoleliwabi.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4490547/normal_5fce7b8f172b1.pdfIn PDF document text
- http://avto-document.site/62326766916tfq3j.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4473947/normal_60073bb38c3ca.pdfIn PDF document text
- http://alphabitx.com/digonitepemevigilazuhbljq.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4417814/normal_60086f575b0f1.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4479710/normal_6008986292a37.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4411220/normal_6027fe0b4751e.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4481420/normal_5fdec6d08553b.pdfIn PDF document text
- http://fsbsiod.com/91269592358u2b5e.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/7430b7ed-e852-4817-841f-088c3380b429/what_do_scarlet_tiger_moth_caterpillars_eat.pdfIn PDF document text
- https://4abf464d-34d5-4c80-8de5-e64f30e04530.filesusr.com/ugd/8b3eb5_639ba7f1d28b494ebc21bc0b3e35130c.pdf?index=trueIn PDF document text
- https://a98f38e8-5810-4fc9-be6a-c3d78c7c4f9f.filesusr.com/ugd/921909_0c01ea2c7f314c36a1e8f75e845c65cf.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/c18b5af4-da6e-4f35-93e7-c50dcc0b75d8/99026540608.pdfIn PDF document text
- https://6754c94d-8795-460a-880d-d127bb37d4d4.filesusr.com/ugd/2383dc_e6b2879dbbef46d7b91c241b26e4a683.pdf?index=trueIn PDF document text
- https://uploads.strikinglycdn.com/files/f6c0eb11-7c5d-4e7e-afe8-55353cc73660/lomizodo.pdfIn PDF document text
- https://684917c6-b594-4497-9ea4-141105166a5b.filesusr.com/ugd/0dc9f5_30974055f49340d1bcf893cd19509bb6.pdf?index=trueIn PDF document text
- https://9387bd13-3746-4408-b474-2867f26e464d.filesusr.com/ugd/ace02d_c8756d29d484498d943f7bfc44d11e78.pdf?index=trueIn 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
- 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_off00012b21.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12B21 | 5212 bytes |
SHA-256: f3fc74d04db77e86f6481198a3d1affbe5c9889ab5826aa749ee7f6ab1473a8a |
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font_01_sfnt_off00013cc7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13CC7 | 10276 bytes |
SHA-256: 63290a4c687a0a61527d08b5f44decbc4425aa70c06eee71bb4c4cb2d635b56c |
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font_02_sfnt_off00015fff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15FFF | 16076 bytes |
SHA-256: cb07af63cc967bc725defeb60e0f94def8eca5b79d09fb04145a87b09fb96d38 |
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