MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged as malicious by a machine learning classifier and contains a critical heuristic indicating it links to known malicious redirector infrastructure. It also exhibits characteristics of a PDF link farm, with numerous external links, many hosted on cdn.shopify.com. The primary malicious IOC is the redirector URL, which likely serves as a gateway to further malicious content or phishing pages.
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.cc/pify?keyword=definicion+de+sesion+de+aprendizaje+segun+autores+pdf In PDF document text
- http://files.globalafricancreates.com/uploads/1/3/1/4/131452958/7653675.pdfIn PDF document text
- http://files.percpayments.com/uploads/1/3/2/8/132815767/ce260919da.pdfIn PDF document text
- http://files.cuteships.com/uploads/1/3/1/4/131453250/kokawoji.pdfIn PDF document text
- http://fontawesome.iohttp://fontawesome.io/license/In 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/1/0433/7015/2088/files/33611641432.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0441/3403/9704/files/seraberedezisu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1438/1980/files/fanazejemefitan.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3228/9178/files/70123228859.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7673/0533/files/laneguwabasezurugiw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7816/4387/files/59413817307.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/0027/3830/files/gogibizuzevakirokarali.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9563/7659/files/1077366233.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6828/4316/files/zokokibilugewu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4433/8838/files/69585146676.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9313/1425/files/32903127892.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000887d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x887D | 1844 bytes |
SHA-256: b1e51f4d1ec0f841f4d972e53f2e91bbd7c8ceab537c0d9bc58fbddef7ab9282 |
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font_01_sfnt_off00009147.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9147 | 5296 bytes |
SHA-256: 688885736517fc212f825e72547c600d025e3f64cb415febf406ff8cbcc36b89 |
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font_02_sfnt_off0000a36e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA36E | 12096 bytes |
SHA-256: fdc3d3b294a6cd4d38d56e101ec2d5574c3aad7d8385d07959f6ab0899f4a0eb |
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font_03_sfnt_off0000c9f1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC9F1 | 16840 bytes |
SHA-256: 482d3104c6934c68feb94f85b3a43ac9f5d765b4463e79f0c495fa92c32fdca3 |
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