MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links designed to appear as legitimate ebook downloads but redirect to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM heuristics. The primary redirector URL is https://ttraff.ru/pify?keyword=bengali+to+english+dictionary+pdf+ebook+download, which is used to lure victims. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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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=bengali+to+english+dictionary+pdf+ebook+download In PDF document text
- http://files.bluewater4property.com/uploads/1/3/1/3/131380546/tepevijowuk.pdfIn PDF document text
- http://files.thebonobodiaries.com/uploads/1/3/1/4/131406286/sukewuf.pdfIn PDF document text
- http://files.rootack.com/uploads/1/3/1/4/131452997/xeritipebev.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5656/1318/files/15553352065.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8764/3302/files/16765658560.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5933/9679/files/filsafat_imam_al_ghazali.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5327/7589/files/28711035187.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1734/6965/files/rerimonebabafiwemowekige.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2594/8072/files/kivogisulobelezu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0158/5570/files/pavonoje.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3564/0476/files/feraliporoserino.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2282/7165/files/personal_statement_template.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7089/7824/files/8472556066.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
- http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
- http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000060c9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x60C9 | 5864 bytes |
SHA-256: 98d6cae210f49fb6b9f79362d215303efb994a826f5b5f79907c257280c91799 |
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font_01_sfnt_off000074cb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x74CB | 3920 bytes |
SHA-256: 00b97bf026faf62e808e63cb77a483cd52ef175fbbff502513488716c072541b |
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font_02_sfnt_off0000810a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x810A | 3188 bytes |
SHA-256: dda256e8cf4eee4298835e504eb75d49cb13ab10d1781cc6c162a507f8f0cc23 |
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font_03_sfnt_off00008e6d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8E6D | 10212 bytes |
SHA-256: a3f742ca2744a1519e49e63e039044672d7246e772b566bc8b1466bb719818d4 |
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