MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of external links, many of which point to Shopify domains hosting PDF files, suggesting a link farm or SEO manipulation tactic. One critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.cc/pify?keyword=basic+english+grammar+book+1+pdf'. The document body, though heavily obfuscated, contains text related to 'basic english grammar book 1 pdf', likely intended as a lure. The ML classifier strongly indicated maliciousness.
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=basic+english+grammar+book+1+pdf In PDF document text
- http://zewire.lamayeshehouse.org/uploads/1/3/1/3/131398020/suruwijakawe.pdfIn PDF document text
- http://files.plbra.org/uploads/1/3/2/7/132710779/poniresokipofade.pdfIn PDF document text
- http://files.cuauhtemocmurphy.com/uploads/1/3/2/8/132815367/9f7c14b.pdfIn PDF document text
- http://files.wrestleatlas.com/uploads/1/3/2/7/132740670/2c15f80d87c.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/1/0432/5618/5000/files/50441357530.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8317/7887/files/berlin_germany_tourist_information_travel_guide.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6708/8800/files/42314181161.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/8724/0093/files/28719395043.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7249/5519/files/anamnesis_fisioterapia_formato.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1656/8487/files/tiwapomesivunaxitisi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8336/5528/files/balochistan_history_in_urdu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7404/3552/files/minecraft_trigger_command.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0023/3110/files/dakuvanunaxel.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3237/1622/files/navovifexevezilopavavi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3826/8830/files/41700526598.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6713/6407/files/only_input_file.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/semigo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4297/1553/files/dobemogubazazilulabo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4211/0631/files/33236234338.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_off00007d02.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7D02 | 5876 bytes |
SHA-256: 4ce92a73cd63e931c886a30dcc365cb3bcf9c0dbc8973284a9a312117c81befe |
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font_01_sfnt_off000090c3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x90C3 | 13816 bytes |
SHA-256: 384437f168ad6bdd0fa10fa3d3a53fdf3d1842c8bf07245028dbb0474b6d6977 |
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