MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of these links, https://ttraff.cc/pify?keyword=physical+science+grade+11+platinum+textbook+pdf, is identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to a textbook and the malicious URL, suggesting a lure to trick users into downloading further malicious content. The ML classifier strongly flagged this PDF as malicious.
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=physical+science+grade+11+platinum+textbook+pdf In PDF document text
- http://files.concealedwindowtinting.com/uploads/1/3/1/3/131380728/7422522.pdfIn PDF document text
- http://files.kaylaschmidt.com/uploads/1/3/0/7/130738639/kidarugawe_fokumefakug_pojaliwil.pdfIn PDF document text
- http://files.whippoorwillwoods-raynham.com/uploads/1/3/0/7/130776499/b9d43.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0431/1898/5372/files/jagarufixadi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3089/6026/files/nonesozovi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8331/6891/files/88373162169.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0141/3795/files/34680983780.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3714/7811/files/93082842137.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6495/8879/files/2016_us_holidays_calendar.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3398/4161/files/durunonur.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3273/1038/files/gutojixewarow.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0436/2906/files/onyxia_quest_chain.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6880/8613/files/69989427188.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/2587/2549/files/craftsman_675_series_lawn_mower_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9124/5733/files/discord_markdown_change_color.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/4589/4816/files/jaime_lorente_a_proposito_de_tu_boca_gratis.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000509a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x509A | 5876 bytes |
SHA-256: 95dec6abf50ff26b7984d0c0129819d4c7b39f08dd27769d86ab418ebd006967 |
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font_01_sfnt_off00006462.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6462 | 9960 bytes |
SHA-256: 060bf4ac1b6aad37164a3936bed66985cc351586b4fdfe6c23b386839280d7d8 |
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font_02_sfnt_off0000867b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x867B | 4324 bytes |
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34 |
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