MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link that redirects to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though obfuscated, contains text related to a 'Hogwarts acceptance letter printable pdf' and the malicious redirector URL. The PDF_SEO_LINK_FARM heuristic suggests the PDF is part of a link farm, likely for SEO manipulation or to distribute malicious links. The ML classifier also 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=hogwarts+acceptance+letter+printable+pdf In PDF document text
- http://zifidu.actforveterans.org/uploads/1/3/0/8/130874359/31d2856.pdfIn PDF document text
- http://files.malcolmmcewan.com/uploads/1/3/0/7/130776632/884f1b0b4c3.pdfIn PDF document text
- http://vosijo.iahbeardenvrai.com/uploads/1/3/2/3/132303382/8679954.pdfIn PDF document text
- http://files.brookwoodlearning.com/uploads/1/3/2/6/132695258/3715178.pdfIn PDF document text
- http://files.eastcoastkubb.com/uploads/1/3/0/7/130740073/7396837.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/1/0436/0214/9540/files/pdf_marketing_en_redes_sociales.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1602/8309/files/download_holy_bible_in_amharic.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6083/0111/files/41647955463.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0443/1645/9164/files/automation_in_clinical_biochemistry_laboratory.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/4978/8327/files/sepetiluw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6006/7480/files/97612316265.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8986/1535/files/lijomo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2971/6374/files/bacchae_woodruff.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6781/0726/files/borutadukamip.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8863/2213/files/58136641958.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/2851/8824/files/fallout_new_vegas_redesigned.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/84574839703.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7122/5494/files/petafe.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
🗂 Part of campaign:
brookwoodlearning.com
4 samples
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005e0f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5E0F | 5516 bytes |
SHA-256: b43a42fbbbf5629983b1241d75894d4965642f064d33412530d27c94df183eaa |
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font_01_sfnt_off000070ef.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x70EF | 10612 bytes |
SHA-256: 17d6b43080557638c6b1de87abfdac22e3e6011a916037f151c96046ace3196f |
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