MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous links, including one pointing to a known malicious redirector at 'ttraff.ru'. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=cancer+de+base+de+lengua+pdf', suggesting a lure related to a medical topic. The presence of a large number of external PDF links, many hosted on Shopify, indicates a potential SEO poisoning or link farm strategy to distribute 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=cancer+de+base+de+lengua+pdf In PDF document text
- http://files.cornishquest.org/uploads/1/3/0/7/130739039/xileriralomi-finotarofiginek-gixesife.pdfIn PDF document text
- http://files.bigpineysincredibulls.com/uploads/1/3/0/9/130969763/kewusuw_kaderamolisizav_posidaxuvaxek.pdfIn PDF document text
- http://votatos.yellowstoneartboutique.co.uk/uploads/1/3/1/4/131482995/zepadoba.pdfIn PDF document text
- http://files.hamradioworks.org/uploads/1/3/2/6/132696174/6179500.pdfIn PDF document text
- http://files.bensonneighbors.com/uploads/1/3/2/6/132683328/738537.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/1/0429/4190/7100/files/83514240315.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6980/8548/files/31665411505.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5116/2517/files/monitorar_rede_wi_fi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4079/2999/files/python_threading_example.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8861/8396/files/gujuvile.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7921/2959/files/poserejoniwitelikako.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pezudatilekubad.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7426/4992/files/bolakaxanowagaratepaxek.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5592/2852/files/18126308406.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0454/5180/4824/files/austin_kleon_roube_como_um_artista.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8689/5522/files/basics_of_resistors_capacitors_and_inductors.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9606/4671/files/tegimonagidoxunaxawa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5491/3943/files/xinimupegusidobijaz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6989/8914/files/bezoxodulililodelejezo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0447/2219/2537/files/approximation_questions_for_ibps.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_off000089f2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x89F2 | 5368 bytes |
SHA-256: 787b4fbeb6444374a214fe7362ddde9bd043097f473539ed83e37828e91891dc |
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font_01_sfnt_off00009c3a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9C3A | 11496 bytes |
SHA-256: fda57ca365ae841490730e86d31fad74a7aa41e4ce3192ef861016c5b8ebdce0 |
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