MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF file contains a large number of embedded links, identified as a PDF link farm. One of these links, 'https://ttraff.ru/pify?keyword=biot+savart+law+proof+pdf', points to known malicious redirector infrastructure. The ML classifier also strongly flagged this PDF as malicious. The document body appears to be obfuscated or corrupted, preventing a clear understanding of its content, but the presence of numerous links and the malicious redirector strongly suggest a phishing or redirection attack.
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.ru/pify?keyword=biot+savart+law+proof+pdf In PDF document text
- http://files.nightwispdesigns.com/uploads/1/3/2/7/132740260/peviwobejis-zefemi-sopuvinamorul.pdfIn PDF document text
- http://files.risefremont.org/uploads/1/3/0/7/130775635/3771843.pdfIn PDF document text
- http://files.joshuahookart.com/uploads/1/3/1/3/131381658/1027776.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/1/0439/2298/1032/files/majupi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7013/6230/files/92085527288.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7378/1411/files/libojafo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1896/0541/files/midigapulidijizuf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6310/0070/files/25885662683.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sejil.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5180/3033/files/kobemede.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2776/7206/files/69095723433.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9800/3874/files/zuvefaraw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6495/8879/files/42997138727.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8755/9833/files/65569676012.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7066/0508/files/gabevu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6345/9486/files/potififekogedo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7572/1629/files/64383233085.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000a2d5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA2D5 | 4800 bytes |
SHA-256: af28e824fd7a1064d8a23e946720921baf34455a89632abe61a669cd02cd50f4 |
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font_01_sfnt_off0000b347.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB347 | 11644 bytes |
SHA-256: 2568b208bec259090cd0d6ecd99c1b8aa328a1eeb6dfe324161520a750521eef |
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font_02_sfnt_off0000dacd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDACD | 16360 bytes |
SHA-256: b428aa5f6ba948456a73360b620b36dad48c841005e7586f64776c71b73a69f1 |
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