MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF contains numerous links designed to appear as legitimate downloads, but the primary link redirects to a known malicious infrastructure. The ML classifier strongly indicated maliciousness, and the heuristic firings confirm the presence of a malicious redirector and a link farm. Although no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to exploit users through a phishing lure, likely leading to further malicious content or exploitation.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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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=ergonomics+pdf+book In PDF document text
- http://files.cdebtherapy.com/uploads/1/3/0/7/130739525/kalelepamajuwibi.pdfIn PDF document text
- http://files.teamvogelvscancer.org/uploads/1/3/1/4/131483138/pinafezuf_rumewa_xekiroditaz.pdfIn PDF document text
- http://files.blueheronherbary.com/uploads/1/3/1/0/131070230/zebog_wurasa.pdfIn PDF document text
- http://wudexoto.elizabethtabish.com/uploads/1/3/0/8/130813528/5154119.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/1/0427/8131/1132/files/jajibujifadetuxamerareluw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0455/7815/8245/files/aashto_green_book_free_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8280/0542/files/kosifakigovotunepoziro.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9162/3074/files/gidedubobotoginaniv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0921/1557/files/lirinolesiwupewarisanutaw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/8918/0310/files/fogurexapavawebugujip.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0453/6434/7035/files/fitanikitikebekafuxeja.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/0181/3915/files/19592118847.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0108/5082/files/vurelidezofotejilufeje.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9826/8065/files/biophysics_books_free_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5869/1232/files/a._o._a._c_official_methods_of_analysis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6705/7063/files/pukewebi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2201/6934/files/4921693609.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3175/6957/files/bubomadodozebeziko.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2004/1886/files/5539892125.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_off00006060.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6060 | 5396 bytes |
SHA-256: cfcd53889f9918ee1395b80d01f42bcdb208a115938308dbdaf06f4e4cb166e1 |
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font_01_sfnt_off000072a1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x72A1 | 9804 bytes |
SHA-256: 2a13c63b8f3e6e4f101233690a8e7d16e6f5259ce31867d0f9542bf72e0ed314 |
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