MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple heuristics indicating malicious redirection and a link farm, including a critical finding for a malicious redirector. The document body and embedded link actions point to a lure for free downloads, redirecting to the malicious URL https://ttraff.cc/wb?keyword=libro%20de%20stoecker%20refrigeracion%20pdf. This suggests a phishing or scam attempt leveraging SEO tactics to distribute malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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.cc/wb?keyword=libro%20de%20stoecker%20refrigeracion%20pdf In PDF document text
- http://files.donjasdogs.com/uploads/1/3/0/8/130874180/lajadewag_muxisovulopamu_wuminowegi.pdfIn PDF document text
- http://files.angoloitek.com/uploads/1/3/2/7/132712093/59651.pdfIn PDF document text
- http://tezevep.falsefloorcreative.com/uploads/1/3/1/4/131437462/palaparewigug.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/1/0432/8190/7870/files/participatory_assessment_in_education.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/46391305542.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0878/5562/files/latibor.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2356/3925/files/98025975840.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4956/5853/files/past_tense_passive_exercises.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mijafovaginidobu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4478/1735/files/78853823281.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8003/1137/files/effective_computer_security_and_risk_management_strategies.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/3511/3110/files/84671998053.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6332/0471/files/rulaw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0333/0209/files/kutam.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1087/3750/files/apparel_merchandising_book.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0980/1365/files/destilacion_por_arrastre_con_vapor_de_agua.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006284.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6284 | 5436 bytes |
SHA-256: 4b7f05680058f9ee241da671c28f8346f9bdda2cee4396c48a8cdecca69b6781 |
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font_01_sfnt_off0000750d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x750D | 12712 bytes |
SHA-256: 9751c2e62f8c8df055de78034291dba2978befa6e95a3cea523d07e5b5887eb1 |
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font_02_sfnt_off00009ef7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9EF7 | 16140 bytes |
SHA-256: 1ffca1ef16be5e2ec436e77f9211a88ad3199dc781cb76600401cc2e2c7dce6d |
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