MALICIOUS
214
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded links, many of which point to an SEO link farm and a known malicious redirector. The document body, though heavily obfuscated, contains a URL that appears to be part of a lure for free book downloads, consistent with phishing or scamming. The ML classifier also strongly indicated 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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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=telecharger+livre+gratuit+pour+apprendre+l+anglais+pdf In PDF document text
- http://files.howlinghillsranch.com/uploads/1/3/0/7/130776487/pilokerekojem.pdfIn PDF document text
- http://files.themascotsyndicate.com/uploads/1/3/2/6/132695636/zovowisa.pdfIn PDF document text
- http://files.christinacsmedia.com/uploads/1/3/2/6/132682441/2292742.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/1/0427/9628/6119/files/callate_y_besame_zara_black_gratis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0832/7829/files/61419144596.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8752/7078/files/36454354009.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9220/4950/files/gugono.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7279/0428/files/zavejisibaj.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5384/1560/files/kaxotixubegin.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3866/2053/files/8789435001.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7339/7145/files/66093306255.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/68876684382.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1830/5179/files/wiwag.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8073/6156/files/44122026782.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6086/2874/files/amadeus_peter_shaffer.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_off000069c9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x69C9 | 5308 bytes |
SHA-256: 07006d944aa812b9d337ce002c49513e857f9bbf2a4c17b42d88ab903987bf2f |
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font_01_sfnt_off00007bcf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7BCF | 11672 bytes |
SHA-256: 611ac81bf69881b3427f73b1b6be4d2d5d6085cf57b1abef259f2d028557a2b9 |
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font_02_sfnt_off0000a0fd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA0FD | 4324 bytes |
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3 |
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