MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple embedded links, with a primary redirector pointing to a "free download" lure. This suggests an attempt to trick users into downloading potentially malicious files. The ML classifier strongly indicates maliciousness, and the presence of numerous external links, including a primary redirector, supports a phishing or content-luring attack pattern.
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/wb?keyword=sanford%20guide%202019%20pdf%20free%20download In PDF document text
- http://files.randomlakeeducationfoundation.com/uploads/1/3/2/6/132695280/bagatededevoku.pdfIn PDF document text
- http://pupidog.parentlednetwork.org/uploads/1/3/2/8/132815002/gebibosukitu_giviv_sakaroj.pdfIn PDF document text
- http://kufanexaz.addisonwilhite.com/uploads/1/3/0/8/130874253/raroxozimatu.pdfIn PDF document text
- http://files.mtbsiteservicesbusiness.com/uploads/1/3/0/9/130969002/c4babc65b1fcc0.pdfIn PDF document text
- http://files.strongmed.net/uploads/1/3/1/4/131453194/4410822.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/1/0433/0638/5573/files/24352782215.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5221/2130/files/livro_alcoro_portugues.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/0177/2192/files/terraria_black_lens.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1666/7814/files/54495932223.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9729/2949/files/surajudajilutu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1931/3062/files/vargas_llosa_biografia.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9462/1862/files/add-_apt-_repository_command_not_found.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4444/5082/files/44081610952.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/51730359377.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4504/4892/files/94064070281.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5279/2982/files/pajejajitetalemamirozofe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0445/7309/8143/files/can_you_open_in_paint.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000053dc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x53DC | 5512 bytes |
SHA-256: c4afead5eabfb6f2b31b97b4fb2b4cd061e70eac1a8a112283375030ea5309fa |
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font_01_sfnt_off000066ad.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x66AD | 12192 bytes |
SHA-256: 27de59f2a41bb2851e8b49906adffa0a5cbaaf4edce4422485edab814502f39f |
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font_02_sfnt_off00008e3d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8E3D | 4324 bytes |
SHA-256: 8405bb6ca9a6fb718a2e910e1cdde4d74ac2122cab0061dc5f772322db9c7ccd |
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