MALICIOUS
214
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document exhibits characteristics of an SEO link farm, embedding a large number of links to external PDF files, many hosted on Shopify.com. One critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.me/pify?keyword=pin+evolution+guide+twewy'. The ML classifier also strongly indicated maliciousness. The document body contains garbled text but includes the same redirector URL, suggesting an attempt to lure users to malicious content.
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.me/pify?keyword=pin+evolution+guide+twewy In PDF document text
- http://bumibezo.nejcrwc.com/uploads/1/3/0/7/130739235/kamikifo.pdfIn PDF document text
- http://files.sdsimages.com/uploads/1/3/2/8/132815752/1413500.pdfIn PDF document text
- http://files.rosehavengoldens.com/uploads/1/3/2/6/132681758/fd11dda12a.pdfIn PDF document text
- http://files.lifeinglitter.com/uploads/1/3/2/8/132816036/niriw.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/1/0431/5856/9128/files/git_submodule_remove.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3414/0056/files/72954173859.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8209/5517/files/solidworks_surfacing_tutorial.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/0597/5462/files/tigray_amharic_dictionary.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0444/2878/7878/files/sportster_service_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4102/1334/files/wanugevoduvafipurobebuge.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6717/9165/files/refemeletux.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6139/5102/files/wabimava.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0594/3701/files/graphing_systems_of_equations_worksheet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7387/2807/files/boris_the_bullet_dodger.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9170/5500/files/fevetow.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_off0000663b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x663B | 4764 bytes |
SHA-256: 6156684aa68373716910bb02869dbf48955b13ab672e7211a6870710208d4076 |
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font_01_sfnt_off0000769e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x769E | 15124 bytes |
SHA-256: 10976c0653f162760520d91a179b2927ac1fa607ada3c95b689e1f4018646479 |
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