MALICIOUS
194
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 external resources. One critical heuristic identified a link to known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=the+norse+myths+kevin+crossley+holland+pdf'. The ML classifier also strongly indicated maliciousness. The document body appears to be corrupted or heavily obfuscated, but the presence of numerous links, including the identified malicious redirector, suggests a link farm attack pattern designed to lead users to harmful sites.
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.ru/pify?keyword=the+norse+myths+kevin+crossley+holland+pdf In PDF document text
- http://files.buchananbioengineering.com/uploads/1/3/1/4/131406811/bixakujozoberig.pdfIn PDF document text
- http://files.familiesrforever.com/uploads/1/3/1/4/131407111/4077565.pdfIn PDF document text
- http://files.srhdonline.org/uploads/1/3/1/3/131398097/zusifediriwiwosapol.pdfIn PDF document text
- http://files.osakislutheranelca.com/uploads/1/3/0/7/130739996/zegisenozi_zapilemanep.pdfIn PDF document text
- http://files.mindfulmilestones.org/uploads/1/3/1/4/131406537/bugilizasowugisi.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/1/0435/7003/6904/files/dragon_ball_z_the_history_of_trunks.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7642/7686/files/86759278206.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/74195332560.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5799/5160/files/75621253216.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/totavari.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4224/2709/files/54297375213.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1390/6327/files/neseratumi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4207/8877/files/pojaxivu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nitopufekuriwuk.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3947/3314/files/fukokarebudojozafogufi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6710/3645/files/gikalatozuxu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1610/0776/files/say_so_wiz_khalifa_download.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_off00006c40.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6C40 | 5568 bytes |
SHA-256: deed618ee70dc189d42dfbb5b1f986915d295eac3b4d273cd56a83265edc1990 |
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font_01_sfnt_off00007f0f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7F0F | 10592 bytes |
SHA-256: 7cbc79270ffb7097545c2527aa467f727da22ce6388d51b8957403cc90cfd2b1 |
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