MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a mass external link farm, with a critical heuristic firing for a malicious redirector link to traff.com. The document body, though heavily obfuscated, contains the URL https://ttraff.com/pify?keyword=geometrical+isomerism+pdf+download, suggesting a lure to download further malicious content. The ML classifier also strongly indicated maliciousness.
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/pify?keyword=geometrical+isomerism+pdf+download In PDF document text
- http://files.floatingintofirst.com/uploads/1/3/2/3/132303337/ridigabununogi.pdfIn PDF document text
- http://files.rautoulab.com/uploads/1/3/1/8/131871535/1908271.pdfIn PDF document text
- http://files.nbcspringfield.org/uploads/1/3/2/3/132302732/luxulaleve_kobelaxulivomo.pdfIn PDF document text
- http://visewo.sudancommunitylondon.com/uploads/1/3/0/7/130776644/deporana.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/1/0430/4227/5485/files/tanosodesuxuwifesasapegit.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/5705/1808/files/hurst_review_files.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1787/1266/files/administracion_de_pequenas_empresas.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/2338/2166/files/oracle_pl_sql_interview_questions_free_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6238/6079/files/academic_writing_skills_1_teacher_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2199/1079/files/aospine_masters_series.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6746/4093/files/6596003320.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4125/1747/files/manual_of_emergency_airway_management_4th_edition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0998/2107/files/kubag.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5901/9927/files/dell_inspiron_parts_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0445/6821/5716/files/halo_graphic_novel_free.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2046/7869/files/tipinojugobadifutujekaz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6882/4488/files/18717113728.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1056/4002/files/poultry_diseases_and_their_treatment_book.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_off0000644f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x644F | 5424 bytes |
SHA-256: 04e60aca670bb3f5f39afa17c77a6229629f73ea66f8d98a0ea6054cd1826559 |
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font_01_sfnt_off000076bd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x76BD | 10268 bytes |
SHA-256: 21fd108214d22cab881e58553594c4f850978f4d178747a9c6c747e91c85d0b9 |
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