MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a mass of external links, many of which point to a redirector service (ttraff.cc). The document body text, though partially corrupted, includes the phrase 'Learn german grammar pdf' and the malicious URL, suggesting a lure to trick users into clicking the link. The presence of numerous PDF links, many hosted on Shopify, indicates a link farm used for SEO poisoning or to obscure the final malicious destination.
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=learn+german+grammar+pdf In PDF document text
- http://files.bathhousebasics.com/uploads/1/3/2/6/132695302/gowapomuvogilirejiga.pdfIn PDF document text
- http://files.christiestimber.com/uploads/1/3/2/3/132302815/a80bec9c772bc.pdfIn PDF document text
- http://files.hoodarc.org/uploads/1/3/2/6/132681660/tepesesokiga_tomoperus.pdfIn PDF document text
- http://duzesosel.northlinefarms.com/uploads/1/3/0/7/130776873/viposojerejafofinigu.pdfIn PDF document text
- http://files.jmbmoldings.com/uploads/1/3/1/6/131606280/4675183.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/1/0430/9565/4564/files/winchester_model_97.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7723/8945/files/detect_text_in_scanned.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7990/1085/files/48087772888.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1999/2222/files/jovilegezowipumebefalege.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1671/5429/files/67884931184.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9476/8792/files/7235576989.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8289/8840/files/ansiedad_depresion_y_estres.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0803/2922/files/xinalonufisajuwi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6277/9295/files/45095256456.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000066c2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x66C2 | 5092 bytes |
SHA-256: 3c2259874bd622fa39878420744b38c2d47de3b850d1362c191db175d5b7ea29 |
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font_01_sfnt_off000077f2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x77F2 | 5080 bytes |
SHA-256: b28853663c7ef6b7be2dd11da19cf13c2cfa0cfd5c87a300468558bba80129ca |
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font_02_sfnt_off00008a67.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8A67 | 10248 bytes |
SHA-256: 639aa49c682d8bb5f0838eec6b28f50214b15d6cd1562832c3bd221201093659 |
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font_03_sfnt_off0000ad85.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAD85 | 17180 bytes |
SHA-256: ca5a8f0af13e9ce8e95ea293e2ca56778b1421fe8be2f8a22551f91b2c047ef8 |
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