MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a high density of external links, many pointing to what appears to be a link farm designed for SEO manipulation. One prominent link, 'https://ttraff.cc/pify?keyword=oxford+bookworms+library+stage+1+the+wizard+of+oz+pdf', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Oxford bookworms library' and the 'wizard of oz', suggesting a lure to disguise the malicious intent. The ML classifier also strongly indicated maliciousness.
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=oxford+bookworms+library+stage+1+the+wizard+of+oz+pdf In PDF document text
- http://files.hollyboyter.com/uploads/1/3/2/6/132695741/33fbe27b7e057.pdfIn PDF document text
- http://files.studio11sfe.com/uploads/1/3/2/3/132303068/rerosiz.pdfIn PDF document text
- http://files.positivelypolyanna.net/uploads/1/3/0/9/130969390/vinopojonapolup-pefamepi.pdfIn PDF document text
- http://files.davidrjohnsantiques.com/uploads/1/3/0/8/130814192/3831470.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/1/0427/8134/3900/files/python_str_object_is_not_callable.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0896/6301/files/pobefimowelebonisiluv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0449/7837/2766/files/american_date_format.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6818/6024/files/pdf_antenna_construction.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0446/6740/4451/files/tinuwijepujamosivibizetu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0659/0104/files/laxivabotanatelubagu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8305/5782/files/fenewa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/libidurekatomanazavevufi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6393/4109/files/97488128402.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6697/2577/files/fundamentals_of_organic_chemistry_mcmurry.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0447/8651/6134/files/research_ontology.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/7368/1061/files/88260664866.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9702/2871/files/86937272137.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_off00004874.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4874 | 6048 bytes |
SHA-256: c3cd70b0edd525e4f013d050e55d90ea045466878ed5e057e443d470c07481f8 |
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font_01_sfnt_off00005d0d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5D0D | 10120 bytes |
SHA-256: 4396fa49ea4a1f8a95ba1a28be9c78faa0802ef66604578756f16de3a95c5a95 |
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