MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many pointing to Shopify domains hosting other PDFs, suggesting a link farm or SEO poisoning tactic. One critical heuristic identified a link to a known malicious redirector at 'ttraff.ru', which is likely the primary malicious payload delivery mechanism. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=arteriograf%25C3%25ADa+cerebral+pdf', reinforcing the malicious redirector finding. The overall structure and content indicate a lure to a malicious site rather than a direct exploit within the PDF itself.
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=arteriograf%25C3%25ADa+cerebral+pdf In PDF document text
- http://files.extracoolerart.com/uploads/1/3/0/8/130874474/latafodi-ziwovom-nebuxixibos-kobuxaneruzeza.pdfIn PDF document text
- http://files.selectent.com/uploads/1/3/0/8/130874250/lulomirob_kisurunajalu.pdfIn PDF document text
- http://kibanoxe.hhjgt.com/uploads/1/3/2/3/132303195/rimarumep_tebixexixi_larudoxon_nojukigujisola.pdfIn PDF document text
- http://files.narrins.com/uploads/1/3/2/6/132695294/9061719.pdfIn PDF document text
- http://files.leaderboxessentials.com/uploads/1/3/1/4/131453588/db7dd15.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/1/0434/6760/4128/files/lixewinuxedijofidowanelot.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6689/2191/files/pdf_abortus_inkomplit.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5511/9512/files/spatial_and_diagrammatic_reasoning.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4607/6565/files/zasikemiranagenuko.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3501/6863/files/juwirudokivo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7188/9815/files/61266423816.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6997/2383/files/30993407912.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2647/2347/files/87969600928.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/8762/4344/files/subevunowuxixitegax.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1383/2857/files/73766056293.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7206/1591/files/fesolidinoval.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kosetomamevisired.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4024/2840/files/94562164804.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4227/5485/files/neradifatigu.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_off0000946e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x946E | 5328 bytes |
SHA-256: 04893a2c36280b2229c1597b05409abc2ee635864eb24d3e6c2e15a518222bac |
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font_01_sfnt_off0000a6a2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA6A2 | 10368 bytes |
SHA-256: 55b47a9e7e215334f11fc9bd8c9f3c06eaa93476fedeeb67a511265c1d0eb38c |
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