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 domains associated with link farms and redirectors. The primary redirector URL is https://ttraff.com/pify?keyword=research+journal+of+pharmaceutical+biological+and+chemical+sciences+pdf, which is designed to obscure the ultimate destination. The ML classifier strongly indicated maliciousness, and the presence of numerous external links supports a social engineering attack pattern.
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.com/pify?keyword=research+journal+of+pharmaceutical+biological+and+chemical+sciences+pdf In PDF document text
- http://files.easyorchidgrowing.com/uploads/1/3/1/4/131483830/jivifupuf_jirosasasob_xoreregosisen_bulezuvuro.pdfIn PDF document text
- http://files.mrsmuenks.com/uploads/1/3/0/8/130814106/8189373.pdfIn PDF document text
- http://files.yarmouthportlibrary.org/uploads/1/3/1/4/131482853/xemarenulavilus-tadutisosame.pdfIn PDF document text
- http://files.apply-me.com/uploads/1/3/0/8/130814172/kokitero.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/1/0427/5650/5756/files/ropubifexisemojamuwatiwi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8716/7645/files/19144329599.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9481/7445/files/lujowitowilipidibivodur.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8580/0358/files/78650841932.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2353/2195/files/86404716134.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0877/0726/files/bewetaxuwilo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5217/0406/files/australian_animals_word_search.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8346/3832/files/danebosuvebewodebesupag.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1938/6526/files/viwaf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0768/0405/files/fuvojowulipetaxomimuxu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/1131/5611/files/bsc_magazine_jan_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3171/4202/files/35660702955.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2312/3100/files/amitav_ghosh_the_shadow_lines.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_off00005a46.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5A46 | 5676 bytes |
SHA-256: f8e8f35dc386ae4f97797c5c09a9e4afdf329c284fbfe9ae547c11c353aa1b6b |
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font_01_sfnt_off00006d5f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D5F | 10148 bytes |
SHA-256: 6d46048f2e3f8f63d076a1bf7b1ca9dc55ccf45b37a02bcb7f43733f9524d210 |
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font_02_sfnt_off0000900d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x900D | 4324 bytes |
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3 |
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