MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link farm designed to appear as a legitimate download source for 'Bsc physics books pdf download'. This is a common lure for SEO poisoning attacks. The primary link redirects to 'ttraff.com', a known malicious redirector, indicating an attempt to lead the user to malicious content. The ML classifier strongly supports the malicious nature of this PDF.
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.com/pify?keyword=bsc+physics+books+pdf+download In PDF document text
- http://files.islshenzhen.com/uploads/1/3/0/7/130740530/ruzuxiwenur.pdfIn PDF document text
- http://files.thecuriouscatgiftshop.com/uploads/1/3/2/6/132681596/puwakir.pdfIn PDF document text
- http://files.pamelaarmstronggallery.com/uploads/1/3/0/7/130776599/tisuwagimiwoxesuzaf.pdfIn PDF document text
- http://files.regalbakeryusa.com/uploads/1/3/1/4/131406412/7743718.pdfIn PDF document text
- http://files.madewithlove97.com/uploads/1/3/2/6/132696465/kobotadokizid-wuwibonijukus.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/1/0430/6694/9786/files/19185744936.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1582/2747/files/24580405814.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0342/9535/files/sowobupowufaxa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/4513/5260/files/kufikanowu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7143/1065/files/75447985138.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3622/9278/files/vozuvofoja.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/4844/9701/files/sidasawubirije.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9899/5864/files/73047759692.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7618/0376/files/58761761862.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4864/0418/files/morabakavononodomis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0704/1958/files/83416675956.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5698/8311/files/12316815164.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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000070bc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x70BC | 5184 bytes |
SHA-256: 2c728b27aad8a376fa14c5531d6f31dc24e0ece9bb3dde5b3e520a21fe856349 |
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font_01_sfnt_off0000825a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x825A | 3204 bytes |
SHA-256: 55deeea3a93518db721a97da0d8f9359fab86ec4add728a48e55287c41c27800 |
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font_02_sfnt_off00008f4a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8F4A | 2320 bytes |
SHA-256: 7bb91423d63eb6bd7c2657278979848d60b7d38679106ec23dbd755ba6ab3d32 |
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font_03_sfnt_off0000999a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x999A | 10012 bytes |
SHA-256: 5082137c94320138b99816ee572b8c858f661f668572cca696cdd401db636408 |
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font_04_sfnt_off0000bbc7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBBC7 | 16224 bytes |
SHA-256: 5f3bf50395e8d1b65f29ab90a426c3665da69f8437ae50e88eef237d5e22552a |
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