MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier as malicious and contains numerous embedded links. One of these links, 'https://ttraff.com/wb?keyword=errores%20innatos%20del%20metabolismo%20de%20proteinas%20pdf', is identified as a known malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting the primary intent is to lure users to malicious sites. The presence of a large number of external PDF links further supports the attack pattern of a link farm designed for redirection.
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=errores%20innatos%20del%20metabolismo%20de%20proteinas%20pdf In PDF document text
- http://bobubib.holisticbirthandbeyond.com/uploads/1/3/0/8/130874493/guwajilutefawa-sisap-dumat.pdfIn PDF document text
- http://files.fairhavenkids.com/uploads/1/3/2/3/132302870/fefaz.pdfIn PDF document text
- http://files.slocampnpack.com/uploads/1/3/0/7/130776401/jofagupasob-sajajopaban.pdfIn PDF document text
- http://files.finksdeli.org/uploads/1/3/2/7/132741222/5b0259.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/1/0435/4244/6231/files/mabuwixosovuzuvalokitikox.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2009/0535/files/bovine_tuberculosis_review.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9534/1723/files/heart_rate_variability_in_athletes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/reragijod.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2831/6313/files/33347024042.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0536/9758/files/albertsons_job_application.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6825/2565/files/majuwoporefijemaxana.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7747/6253/files/wemafamabubodo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4327/4402/files/xefosemuvufuvodupelodi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4489/6925/files/24932227362.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0557/4311/files/risk_game_of_thrones_skirmish_rules.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1814/8261/files/presentacion_del_informe_de_auditoria_administrativa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7686/8510/files/80706741426.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7732/8286/files/38651903481.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8212/1377/files/fujuderefabivesuf.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_off00006e80.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6E80 | 5284 bytes |
SHA-256: d4a402cb4e0c0ab8e324e6dff9f5dce73f407964ed05ac983a3c53a9daba6f4e |
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font_01_sfnt_off0000805b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x805B | 11004 bytes |
SHA-256: 945512062b77ec19ff7727ca9805e7b461404c89cc92463759feb4a5cc22a999 |
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