MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a malicious redirector link, identified by the critical PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body also contains a visual download button lure, reinforcing the malicious intent. The file is part of a link farm, with many embedded URLs pointing to Shopify domains, likely to improve search engine ranking for malicious content. The primary malicious URL is https://ttraff.com/pify?keyword=chuy%25E1%25BB%2583n+%25C4%2591%25E1%25BB%2595i+file+pdf+th%25C3%25A0nh+%25E1%25BA%25A3nh, which likely leads to further 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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=chuy%25E1%25BB%2583n+%25C4%2591%25E1%25BB%2595i+file+pdf+th%25C3%25A0nh+%25E1%25BA%25A3nh In PDF document text
- http://files.englishzero.com/uploads/1/3/1/0/131069934/tunatikurutawaf.pdfIn PDF document text
- http://files.christianlindke.com/uploads/1/3/1/4/131482941/tekufakabe.pdfIn PDF document text
- http://files.nordcapetravel.net/uploads/1/3/0/7/130738819/c0f1d093b.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/1/0434/8005/5958/files/bepuzedujobilozigat.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8535/7463/files/zamutujitenemal.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4251/2802/files/nexus_plugin_fl_studio.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7673/0533/files/wujumedefipituta.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6244/3683/files/repagurife.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4103/0293/files/kideran.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/2201/4885/files/nuriborakumo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9018/2304/files/vojujiwiliwakelumifu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9124/5733/files/13444938578.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/japoxotoruzub.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6522/1028/files/luxekenetowivarilowaz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8525/9159/files/wamexumugiko.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8271/8107/files/riselosabarozuraxito.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2418/7549/files/dedesokozudomuwojonujedo.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_off00005803.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5803 | 5716 bytes |
SHA-256: 79d207364c1d1ab04a06dca0ac7a4c9bfa62cad3ccbcb9af18eb7ea1c40e1e86 |
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font_01_sfnt_off00006a11.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6A11 | 9968 bytes |
SHA-256: fb9c7b4ea114fca5060d3fec269363af6fbc85149c37f636abd3c0a0ff8fca18 |
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