MALICIOUS
214
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple embedded URLs, with a critical heuristic identifying a link to a known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=corbin+russwin+ml2051+template'. The document body, though heavily obfuscated, also contains this URL and numerous other links to Shopify-hosted PDFs, suggesting a link farm or redirection scheme. The ML classifier strongly flagged this PDF as malicious, indicating a high probability of malicious intent, likely for phishing or malware delivery.
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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
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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=corbin+russwin+ml2051+template In PDF document text
- http://files.lhec.org/uploads/1/3/2/6/132682235/0a40c5a84c7e85.pdfIn PDF document text
- http://nolavedok.mx.reinventing-reality.com/uploads/1/3/0/8/130874493/81e37936.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/1/0435/9284/3422/files/brushless_dc_motor_primer.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7142/2102/files/urban_dictionary_lemon.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9971/6770/files/24612547934.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3510/7233/files/siripepexezexok.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2889/8211/files/kodefig.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8746/2551/files/moxafapoji.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1515/9458/files/attestation_de_salaire_remplissable.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3405/7621/files/the_hungry_tide_by_amitav_ghosh_free_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3525/5203/files/21497728770.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7850/8953/files/babadesozimezezemi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3826/8830/files/xigidedukafoxodigepi.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_off0000436c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x436C | 5552 bytes |
SHA-256: b9939784c8c0b276636f7d6b8eb17e8809eab018633361694d4168d1b259d537 |
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font_01_sfnt_off00005648.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5648 | 9560 bytes |
SHA-256: cfc1c5e444975cba931ec180ef5717cbfcdb225f5fad2f7406f121559012c98a |
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font_02_sfnt_off0000770e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x770E | 4324 bytes |
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230 |
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