MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm or SEO poisoning tactic. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is used to obscure the final destination. The document body contains text related to a book title and the redirector URL, indicating a lure to download content that ultimately leads to malicious infrastructure.
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=calculus+early+transcendentals+8th+edition+pdf+reddit In PDF document text
- http://files.kinderdancenola.com/uploads/1/3/0/9/130969045/3506312.pdfIn PDF document text
- http://fovota.jpascalcreations.com/uploads/1/3/1/4/131438474/5335848.pdfIn PDF document text
- http://files.sidegiglikeaboss.com/uploads/1/3/2/7/132741162/fidubuf.pdfIn PDF document text
- http://files.endoftherainbowdaycare.com/uploads/1/3/0/7/130776487/nogenepegitesam_lafijejen_lekudix_rutogozibake.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.opentle.orgIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6152/6166/files/48882117578.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9832/5671/files/bipote.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8404/4705/files/james_patterson.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5702/9019/files/83510308242.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1715/9335/files/famazewi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6797/3538/files/57137148848.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0443/0499/0364/files/deductive_method_of_research.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/0496/6565/files/free_download_50_shades_of_grey.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/5452/8677/files/usb_fax_modem.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5777/3718/files/baby_beanie_sewing_pattern.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8704/4515/files/88567632980.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://www.gnu.org/licenses/gpl.htmlIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007436.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7436 | 5444 bytes |
SHA-256: e997445ea3c9d4c1aea9eaa7ecc9c36b2aefd15c575df605de8454dd37b809e5 |
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font_01_sfnt_off000086a8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x86A8 | 7028 bytes |
SHA-256: 4411b739a7a52b59e815fefff05a093c8f47411d879fd83f083a4ace97d17e45 |
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font_02_sfnt_off000099ae.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x99AE | 10956 bytes |
SHA-256: ad2ea6905eb1ce81c78d25a585b6bcd117ce69123a5406cf2d11a20e7389e615 |
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