MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple heuristics indicating it's a malicious redirector, specifically designed to lure users with a fake book download. The primary IOC is a URL pointing to a known malicious redirector infrastructure, which is likely used to host or chain to further malicious content. While no scripts were extracted, the PDF structure and embedded links strongly suggest a phishing or scam attempt.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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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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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://ttraff.ru/pify?keyword=10th+new+science+book+english+medium+in+pdf In PDF document text
- http://files.staceywelsh.com/uploads/1/3/1/4/131406800/juxopapovewifofuve.pdfIn PDF document text
- http://files.unionhopebaptist.com/uploads/1/3/0/8/130813489/d18b7511b751b6.pdfIn PDF document text
- http://files.nathanielpicardbusky.com/uploads/1/3/1/4/131455275/260bb86a8ae098.pdfIn PDF document text
- http://files.unbarbadosandoecs.org/uploads/1/3/1/1/131164046/3995283.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://fedorahosted.org/lohitIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/72890356131.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8581/6218/files/puladavuzobadobiberipomeg.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/5228/4566/files/49829353294.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1311/8872/files/sapovefonamezosa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2010/7424/files/42764056301.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8402/1921/files/11652641260.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/7590/2363/files/11967841039.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1320/0282/files/46873442616.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1744/4264/files/7925105486.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9201/7305/files/44399099015.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7092/2655/files/zikebokebu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6497/5765/files/45788057815.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9062/4158/files/82670347782.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8865/0141/files/rivisagidag.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007435.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7435 | 5540 bytes |
SHA-256: 1aa4615c4b041fac3150564f402ca19e72666c1a591aded77dd5c29fecfa03dd |
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font_01_sfnt_off000086f1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x86F1 | 13572 bytes |
SHA-256: 87f7764db3d7e96ecd7edda09a35b4fd847463af6bf261b26067fec9b6012bf9 |
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font_02_sfnt_off0000a6bd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA6BD | 10308 bytes |
SHA-256: 2bf09719f28c40b7bbc50a6fab261ac4ae39c9437f4d5be402da3b8efc77de60 |
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