MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded links, many of which point to redirector infrastructure or potentially malicious content. The PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM heuristics confirm the presence of malicious redirectors and a link farm, indicating a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains a URL that matches the redirector heuristic, suggesting the primary goal is to drive traffic to malicious sites.
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.club/wix?keyword=extra+practice+graphing+rational+functions+worksheet+answers In PDF document text
- http://bilunobon.iscariotstories.com/uploads/1/3/1/8/131858530/dosurusuvukivuninol.pdfIn PDF document text
- http://files.nerissalee.com/uploads/1/3/1/4/131437859/dudovedotewonifu.pdfIn PDF document text
- http://files.cafutahwing.org/uploads/1/3/1/3/131380171/54cf4.pdfIn PDF document text
- http://files.thecovenantschristandyou.com/uploads/1/3/1/3/131379434/94345039.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/1/0428/6955/5356/files/dark_souls_3_rings_guide.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0265/8979/files/quick_video_recorder_pro_apk.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7576/3353/files/guliwunokoponedisu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0462/6618/7933/files/oxford_bookworms_library_level_1.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7441/2949/files/nergies_renouvelables.pdfIn PDF document text
- https://e097b6fa-20fd-4572-bee3-27d439b5e938.filesusr.com/ugd/efb3f0_a388d6f55ee7463f8a0a096464d51d75.pdf?index=trueIn PDF document text
- https://044aad9e-53d1-44cc-b263-bfd213c5328f.filesusr.com/ugd/4329d7_bfd527390d834bf6a27cc3926c176715.pdf?index=trueIn PDF document text
- https://25d6b42b-a70c-4f14-ba71-2cd1e771c81d.filesusr.com/ugd/b148e5_a62a824b05ce4d9982e1ab780887761a.pdf?index=trueIn PDF document text
- https://567e896e-638a-4f16-90bf-bbe3e0ba4315.filesusr.com/ugd/031dda_4fd3d5f112604786bbfd67f3ad60c4c4.pdf?index=trueIn PDF document text
- https://38726551-1160-486b-9d52-3cb6184844fa.filesusr.com/ugd/0010c8_e453975b5d794466b4943963ba9c24e6.pdf?index=trueIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/5506/8837/files/japanese_journal_of_infectious_diseases_author_guidelines.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0441/0834/9592/files/xojezoverererekim.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000045f9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x45F9 | 5460 bytes |
SHA-256: 6e0b3d62ba59177b243693c2779a2427279bc3d60e632610869dad5e2336e379 |
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font_01_sfnt_off000058a8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x58A8 | 10236 bytes |
SHA-256: 8da6cd16028e50c85a1ae506b75181a036446d3102a448e672a583ec9296f8e3 |
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