MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on various domains, including a suspicious redirector at 'ttraff.ru'. This behavior is indicative of a link farm or SEO poisoning attack, designed to drive traffic to malicious sites. The presence of a known malicious redirector strongly suggests a phishing or malware distribution attempt.
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=acuerdos+de+basilea+iii+pdf In PDF document text
- http://neninumid.steampunkgalalondon.com/uploads/1/3/1/4/131437601/0e21a97a.pdfIn PDF document text
- http://sulowel.pilatesexcellence.com/uploads/1/3/1/6/131636612/7734901.pdfIn PDF document text
- http://files.mickallencht.com/uploads/1/3/0/8/130874104/80408eb5.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/1/0432/6499/9588/files/rezizumegukakexozajexe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2756/9576/files/61488455630.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7886/8387/files/b._f._skinner_theory.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tifomev.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0279/0039/files/19455757722.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6230/3637/files/types_of_bakery_products.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/2211/3192/files/lifazenidenisanelozog.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9087/0423/files/2252196290.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8772/4704/files/93463649867.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/3493/3408/files/dictionary_german_arabic.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fadanamimurusekebunom.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1440/6823/files/canon_eos_rebel_t6i_750d_for_dummies_free_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2799/6565/files/automatize_tarefas_maantes_com_python_download_gratis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0447/8101/1093/files/descargar_biblia_de_estudio_plenitud.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_off00008289.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8289 | 5276 bytes |
SHA-256: a7bba6f6caa61ba7a95f135b29ebc95a9117c48b877be535b0b7f5a630430762 |
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font_01_sfnt_off00009486.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9486 | 10984 bytes |
SHA-256: 9eba6394d5a651af095188c481ae8660e0b6fd120fbd2d12e9f3e7c245869843 |
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font_02_sfnt_off0000b89f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB89F | 16060 bytes |
SHA-256: 84d5bd19c210eb3b73ecc14096ab1e56fdfb5b80ce7ba4f0052c67c0c2b02727 |
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