MALICIOUS
214
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
The PDF contains embedded JavaScript and multiple links, one of which, 'https://ttraff.cc/pify?keyword=chest+guidelines+anticoagulation+reversal', is flagged as a malicious redirector. The document body, though heavily obfuscated, contains this URL and appears to be a lure related to medical guidelines. The presence of numerous external PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to increase visibility. The ML classifier strongly indicates maliciousness.
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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Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTHA PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
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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/pify?keyword=chest+guidelines+anticoagulation+reversal In PDF document text
- http://zekipene.teddingtonbowlsclub.org/uploads/1/3/2/6/132681233/binidoxawubo.pdfIn PDF document text
- http://files.houseoflifeonline.com/uploads/1/3/1/3/131379919/vurevikadunozur.pdfIn PDF document text
- http://sesefupi.wembdon-sunshiners.co.uk/uploads/1/3/0/8/130814297/9874719.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0430/3313/3209/files/letube.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0462/0232/3094/files/quantum-_dot_cellular_automata_design_guideline.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2875/0241/files/libertango_classical_guitar_sheet_music.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5057/2695/files/15831765488.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7952/2717/files/jobojowarojukulobu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9105/1161/files/uk_childhood_immunisation_schedule_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3680/3233/files/vonaxif.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6660/5211/files/90976552605.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1715/0368/files/sogagedimixinapawun.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0448/5015/1584/files/sprint_email_to_text.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3082/3583/files/2254796761.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c23d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC23D | 5168 bytes |
SHA-256: 2b8b308b02aeb048baa73eb659686cfecced24af6682c80726c5f2a5c52a7657 |
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font_01_sfnt_off0000d3c3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD3C3 | 12788 bytes |
SHA-256: 8418f928effad182fbfdcc70c4cafc4fc706c2b44f56d0bd0fee02392fbab7c8 |
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font_02_sfnt_off0000fc70.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC70 | 4324 bytes |
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3 |
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