MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The heuristic firings indicate that the PDF is designed as a link farm, likely to distribute malicious content or facilitate phishing. The primary malicious URL identified is https://ttraff.ru/pify?keyword=aprender+frances+pdf+completo, which is used in conjunction with other benign-looking Shopify links to mask the malicious intent. The ML classifier strongly supports the malicious nature of this PDF.
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=aprender+frances+pdf+completo In PDF document text
- http://pepitu.frauhoeckner.com/uploads/1/3/1/4/131453215/eb6507.pdfIn PDF document text
- http://files.giuseppemanzillo.com/uploads/1/3/1/6/131606652/mizumuji-duturivuri-jikep.pdfIn PDF document text
- http://files.msdewarsclass.com/uploads/1/3/0/8/130814032/jopudaj.pdfIn PDF document text
- http://files.christianchurchinpennsylvania.com/uploads/1/3/1/3/131381722/dosetokebilagor_bopudexapox_kebafasot_bizitalijel.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/1/0430/3588/5725/files/mivukebikofe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7808/0925/files/john_deere_gator_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/1091/4466/files/birla_sun_life_sip_form.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2630/0575/files/19575796080.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6872/7194/files/antimoniales_pentavalentes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8949/4177/files/international_accounting_standards_14.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6403/3429/files/51495308140.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6772/8281/files/dijudofo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5071/9642/files/pensum_de_administracion_de_empresas_uasd.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7044/5975/files/league_of_graphs.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2535/0306/files/4629547116.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3333/7768/files/gakibisotokigitamasaj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1421/8151/files/56871191172.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_off00006508.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6508 | 5288 bytes |
SHA-256: a3a9c92f0da73ded39a20cee2d232ef72ae7ee91aa3f069c883a9545c55fb6bf |
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font_01_sfnt_off000076ef.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x76EF | 10564 bytes |
SHA-256: b2825e5bcfafef199d6e11008df268372dcab8d46cc4d17e849013b2fab39ba4 |
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