MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains numerous embedded links, many of which point to a redirector service (ttraff.ru) that is flagged as malicious. The document body, though heavily obfuscated, contains the same redirector URL and a reference to 'wkhtmltopdf', suggesting it was generated programmatically. The presence of a large number of external PDF links, many hosted on Shopify, indicates a link farm or SEO manipulation tactic, likely to obscure the malicious redirector or distribute further malicious content.
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=retinopatia+hipertensiva+articulo+pdf In PDF document text
- http://files.tilliesschoolofperformingarts.com/uploads/1/3/1/3/131398194/zaxigam-fugis.pdfIn PDF document text
- http://files.ahta.info/uploads/1/3/1/4/131437491/duxagabudutufuw.pdfIn PDF document text
- http://files.simplegiftssyrupandsalmon.com/uploads/1/3/0/9/130969312/7823327.pdfIn PDF document text
- http://files.tremptrip.com/uploads/1/3/0/8/130874204/pokezulezavujaxosupu.pdfIn PDF document text
- http://files.minibaraddict.com/uploads/1/3/2/3/132302732/4191184.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0430/2965/9797/files/mathematics_for_economists.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1925/5454/files/37177063676.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1531/5351/files/the_release_technique.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32377204601.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2971/6374/files/2005660620.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0071/6694/files/tuvuxoxuxexi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4230/7239/files/lanthanide_and_actinide.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3039/6574/files/13525972508.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lokilus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6019/1641/files/2312077498.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_off00007e22.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7E22 | 5192 bytes |
SHA-256: 79894b1eb6303dc777879a3d123a84aaa665b95498529e913931cb0ca9498364 |
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font_01_sfnt_off00008fc4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8FC4 | 10272 bytes |
SHA-256: 2a50c95240edd075d3703169c247f537d2210410a3a78bf739788f2c095dc232 |
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font_02_sfnt_off0000b2f9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB2F9 | 16204 bytes |
SHA-256: e93acd332f5893643511f4cefd38969ad5c744ad1b08842a788b6be7d277dd15 |
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font_03_sfnt_off0000c827.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC827 | 4324 bytes |
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3 |
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