MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link to a known malicious redirector, ttraff.com, disguised as a search result for 'Descargar coros pentecostales letras y acordes pdf'. The document body, though heavily obfuscated, appears to contain metadata related to wkhtmltopdf and a date, suggesting it was generated programmatically. The presence of numerous links to Shopify-hosted PDFs, some of which are benign, indicates a potential link farm or SEO manipulation tactic to obscure the malicious redirector.
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.com/wb?keyword=descargar%20coros%20pentecostales%20letras%20y%20acordes%20pdf In PDF document text
- http://files.brewandplowfarm.com/uploads/1/3/0/8/130813307/2173498b62b.pdfIn PDF document text
- http://files.crossroads-vet.com/uploads/1/3/2/6/132681296/wavik_wubivusife_bosebakupiwilud_pinazog.pdfIn PDF document text
- http://files.forahumanfuture.org/uploads/1/3/0/7/130739699/dafijatujexuw.pdfIn PDF document text
- http://files.rgadesignquilts.com/uploads/1/3/1/3/131378923/tizubexufofim.pdfIn PDF document text
- http://files.voxinabox.com/uploads/1/3/0/8/130814935/e6caec0bfd.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/1/0433/0009/4112/files/65568660713.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8082/7558/files/35258702862.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0864/7580/files/zogesegirexibonazewipama.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1898/5372/files/82752855633.pdfIn PDF document text
- https://fakesuni.files.wordpress.com/2020/07/68800744635.pdfIn PDF document text
- https://dinipexus.files.wordpress.com/2020/07/nututapobafofotumuvil.pdfIn PDF document text
- https://juxiwag.files.wordpress.com/2020/07/vilawuw.pdfIn PDF document text
- https://pedofakodav.files.wordpress.com/2020/07/36664329844.pdfIn PDF document text
- https://kefuxozo.files.wordpress.com/2020/07/muwalipiropakid.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1387/3569/files/gufafenijaseve.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3575/4650/files/86578295223.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6028/0982/files/90310541928.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/4031/8375/files/ximisekexakivonuxatik.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8068/7524/files/69296409150.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6268/9946/files/41447392040.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1734/6965/files/rokifuvasamekemudofedusip.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_off00005949.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5949 | 5164 bytes |
SHA-256: 8f5753e356e7a0261acd53394e481c518f7fdf86f22020f1315d6dd308b54da4 |
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font_01_sfnt_off00006af0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6AF0 | 9592 bytes |
SHA-256: 9ee578e73c1cf600784b6652195cada00e579c91a4dc062d73a2f055a6f80a0b |
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