MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document contains a large number of embedded links, many of which are part of a link farm designed to appear as book downloads. One of the primary links, 'https://ttraff.ru/pify?keyword=bangla+book+pdf', is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, indicating a clear intent to direct users to malicious infrastructure.
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=bangla+book+pdf In PDF document text
- http://files.dolcasorbet.com/uploads/1/3/0/7/130738652/81e1c7a2a2e3e.pdfIn PDF document text
- http://files.theculturedmushroom.com/uploads/1/3/2/7/132710497/109cc87599b62e.pdfIn PDF document text
- http://files.cedarparkconcrete.org/uploads/1/3/1/4/131437601/1357074.pdfIn PDF document text
- http://files.zillplantas.com/uploads/1/3/1/3/131382239/lasupunamubukunal.pdfIn PDF document text
- http://files.thetechnicolorsheep.com/uploads/1/3/1/4/131438641/tuzutamavalogusite.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/1/0437/7152/7325/files/73658231207.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/23535065851.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8797/0975/files/86914968919.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6377/9236/files/zejonabodeluvozu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1435/7145/files/85008645972.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3419/7666/files/54216875904.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/5575/2103/files/lotapilelefadikovigi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5733/9800/files/16063784512.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6770/3457/files/vuwos.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7441/0901/files/vasis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6984/9246/files/41070924258.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004dfc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4DFC | 5188 bytes |
SHA-256: f20878d0dabeb5e65d28e3030b1ea75986d25d62fcd67c3b268bf1d3bff64e5c |
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font_01_sfnt_off00005fb9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5FB9 | 8664 bytes |
SHA-256: 27b0651eaddad81053ebbb1e5d936b4ee35b527209cc18884de1ec9a4c88cdae |
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font_02_sfnt_off00007b7c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7B7C | 10092 bytes |
SHA-256: fa1e7f6030f18ad0ebe02d9ef01158dc3a130e991e81892dfa2b2e7d17e123d3 |
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