MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a mass of external links, many pointing to a redirector infrastructure. The primary malicious URL identified is https://ttraff.ru/pify?keyword=cholesterol+screening+guidelines+2019, which is flagged as malicious. The document body, though heavily obfuscated, contains this URL and other links to Shopify domains, suggesting a lure to a malicious site. The ML classifier strongly supports the malicious verdict.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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=cholesterol+screening+guidelines+2019
- http://files.zekveldgardenmarket.ca/uploads/1/3/1/4/131483488/350645.pdf
- http://files.diguptheyard.com/uploads/1/3/1/6/131636984/sudimevipad_nifad.pdf
- http://files.heartofcoloradofiberartsguild.org/uploads/1/3/1/3/131381605/woxopexos-vifen.pdf
- http://zapolikux.paragliding-korea.com/uploads/1/3/1/3/131398091/0b6233.pdf
- https://cdn.shopify.com/s/files/1/0432/8911/6840/files/990904896.pdf
- https://cdn.shopify.com/s/files/1/0431/4916/4698/files/11123408927.pdf
- https://cdn.shopify.com/s/files/1/0435/8642/0893/files/applescript_commands.pdf
- https://cdn.shopify.com/s/files/1/0434/5544/7202/files/43350527373.pdf
- https://cdn.shopify.com/s/files/1/0428/0093/9164/files/alpha_kappa_alpha_membership_intake_process_manual.pdf
- https://cdn.shopify.com/s/files/1/0439/1020/1499/files/criticism_of_rational_choice_theory.pdf
- https://cdn.shopify.com/s/files/1/0436/9947/0486/files/xupibesawutevupetufixe.pdf
- https://cdn.shopify.com/s/files/1/0428/3082/3583/files/keep_track_of_your_bills_template.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005ee5.binf6a652bbe733b0fb528f0f389be215c056f6666001987488a893f5ca8e55f2c5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5EE5 | 5380 bytes |
font_01_sfnt_off0000712b.bin130eb1763ee52efe46250347d3332cc42d59f8662b33ff1d00a6dba9e51c21f1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x712B | 10624 bytes |
font_02_sfnt_off00009554.bin9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9554 | 4324 bytes |
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