MALICIOUS
214
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 of which point to Shopify domains hosting other PDFs, suggesting a link farm for SEO manipulation or traffic redirection. One critical heuristic identified a link to known malicious redirector infrastructure at 'ttraff.ru'. The document body also contains text consistent with a callback phishing lure, asking the user to call a phone number in a billing or refund context. No scripts were extracted from this sample.
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=oceanography+an+invitation+to+marine+science+pdf In PDF document text
- http://files.kimberlysfarmflowers.com/uploads/1/3/2/6/132695194/guzuv-negubosoj-simurelo-femalubifo.pdfIn PDF document text
- http://files.adelaide-pilates.com/uploads/1/3/0/7/130739761/zijupepojumoviziwese.pdfIn PDF document text
- http://files.malouky.com/uploads/1/3/1/3/131384797/vovebef-bubozexud-bavenoviwan-nenilaratam.pdfIn PDF document text
- http://files.livestockmanagementsystems.co.uk/uploads/1/3/1/3/131384256/tazemexabizexu.pdfIn PDF document text
- http://files.colindecio.com/uploads/1/3/2/6/132680855/kotagamajexiniv_tafidenasuvan.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/1/0431/3723/7146/files/torogapegipilotajo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5540/7511/files/lapudumujeji.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7002/9975/files/56674712992.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6245/1611/files/78885114863.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6974/1983/files/1670192789.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/bizisumexu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8066/3705/files/amazon_echo_error_registration_failure.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1165/3282/files/71666813641.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0816/3993/files/82828655682.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/0428/7383/files/jopozox.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4462/5822/files/lodenosizadusakixipukop.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_off000076b3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x76B3 | 5728 bytes |
SHA-256: 5a5f45652a049c8e6ff5625a2a251c66f1120513ec706feb7ba161b1553efb0e |
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font_01_sfnt_off00008a17.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8A17 | 10500 bytes |
SHA-256: 2cf7462ec9ed069f91f0fdae748873d35c9d4081a5b6d641a131b3a4b7555ce5 |
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