MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.ru'. Additionally, it exhibits a PDF link farm behavior, embedding numerous external links, many of which are hosted on Shopify. The ML classifier also strongly flagged this PDF as malicious. The embedded URL 'https://ttraff.ru/pify?keyword=antisepsis+and+asepsis+pdf' is the primary IOC, suggesting a lure to a malicious site, likely for SEO spam or phishing purposes.
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=antisepsis+and+asepsis+pdf In PDF document text
- http://tokome.villanovancaastudentchallenge.com/uploads/1/3/1/4/131452903/1232183.pdfIn PDF document text
- http://files.daintydande.com/uploads/1/3/2/8/132815748/xefajuxomi-podizuwurez.pdfIn PDF document text
- http://files.800steps.com/uploads/1/3/1/4/131484395/nevorino-wusefuzi.pdfIn PDF document text
- http://files.kyaramichellephotography.com/uploads/1/3/1/4/131438111/3015867.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/1/0427/8799/5807/files/43259521349.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5598/8374/files/vaxisumekiri.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/2598/7734/files/46597289614.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/21096031872.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/21884581804.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6191/1460/files/27445854643.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7455/0950/files/6187810280.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5891/3689/files/54024531686.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3909/6986/files/tumofivunegugeweme.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2095/1445/files/nogozup.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/0926/0190/files/38525089611.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0444/3032/7975/files/catalogo_de_tintas_suvinil.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2887/2359/files/89146443185.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0389/6230/files/64134029667.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2738/9851/files/34784537372.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_off0000688c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x688C | 4896 bytes |
SHA-256: f81848713618ea2094ade08eba92ab2c4380163a0f4858dfd816390e3244f94d |
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font_01_sfnt_off0000794d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x794D | 10240 bytes |
SHA-256: 97d4d30d6caa75f7d4a9b4c04e2177b5434c51768d1d7f54051a1adc423944de |
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