MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a link farm and a specific redirector URL, indicating a malicious intent to direct users to harmful content. The document body, though partially corrupted, contains text related to a 'jcps school calendar 2015-16' and the malicious URL, suggesting a lure. The presence of numerous embedded links to external PDFs, many hosted on Shopify, further supports the SEO link farm heuristic, likely used to obscure the malicious redirector.
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=jcps+school+calendar+2015-+16 In PDF document text
- http://files.whimsicalwit.com/uploads/1/3/1/8/131858287/950f4.pdfIn PDF document text
- http://files.andersoncontemporary.com/uploads/1/3/1/8/131856852/fegozazukunok-dizawasumen-favokuxike-lefom.pdfIn PDF document text
- http://files.byachad.org/uploads/1/3/0/7/130775368/wenuvo.pdfIn PDF document text
- http://files.saujs.co.za/uploads/1/3/1/3/131383698/gimizowaju.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/1/0429/2041/1303/files/24711366185.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8312/1319/files/wokuriwomuxut.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0637/7633/files/todd_lammle_ccna_book.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8375/1831/files/27711098637.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4642/8072/files/redemption_manual_4._5.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0988/4838/files/wevosanuxipijadifepod.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5401/3336/files/pinawera.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/4126/8647/files/gogopefedakatanofudivop.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9731/7783/files/94219054168.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gomejalubewetilukifij.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4191/5042/files/60734741959.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9056/5537/files/michael_phelps_smoking_weed.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_off0000498c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x498C | 5448 bytes |
SHA-256: 088382288e415b4f1d2fe47198ad1fa5c72bd32105621b591328c7fd1575af57 |
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font_01_sfnt_off00005bf7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5BF7 | 9416 bytes |
SHA-256: 3e2c9bd30a0dafa7c6997a119631f82951b9f8369bf06b419db6ba4f1aa18ca2 |
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font_02_sfnt_off00007c3f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7C3F | 4324 bytes |
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378 |
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