MALICIOUS
214
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a malformed exploit stream and links to known malicious redirector infrastructure, specifically `https://ttraff.com/pify?keyword=biology+form+4+and+5+short+notes`, which is used for "free-download" phishing. The document body, though heavily obfuscated, contains references to educational material and the redirector URL, suggesting a lure to download further malicious content. The ML classifier strongly indicates maliciousness.
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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Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTHA PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
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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=biology+form+4+and+5+short+notes In PDF document text
- http://files.feedmeupdelivery.com/uploads/1/3/1/8/131871849/dunugefubiwexixe.pdfIn PDF document text
- http://zibawinif.simplelifecitywife.com/uploads/1/3/0/7/130775085/wubasal.pdfIn PDF document text
- http://files.ecpizzeria.com/uploads/1/3/1/4/131438784/pitebopeziw_fovelibovolusis_kejotup.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/1/0432/3350/9534/files/basubaninaf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8667/6117/files/vujokazav.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8638/0197/files/vazewoli.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8578/3455/files/47665240666.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/2674/1405/files/colby_sawyer_moodle.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/66691602327.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3423/7333/files/cry_my_beloved_country_movie.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2750/4024/files/bepulodefovok.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/7450/1285/files/posisuwivoz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0307/4984/files/benodisedonamugavu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4163/5997/files/jejitotitizogabasawu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1058/7800/files/ronotazumevo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0402/6280/files/bawovodop.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005fc5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5FC5 | 5684 bytes |
SHA-256: cf047da45dacfa6a2731774e67df7838d73f7c5526da13d409267aa7d1d36ea6 |
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font_01_sfnt_off000072fd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x72FD | 10308 bytes |
SHA-256: 8fd606bc01f200a56f8d8ddcbd0e7db67b58d457e0f135a03401b184cdffa43e |
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