MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous links, many pointing to Shopify domains hosting other PDFs, suggesting a link farm for SEO manipulation. One critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=biology+class+11+ncert+pdf+book'. The ML classifier strongly supports the malicious nature of this PDF. The document body, though heavily obfuscated, contains the redirector URL, indicating a lure to external malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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=biology+class+11+ncert+pdf+book
- http://files.fidesdesigncards.com/uploads/1/3/0/9/130969048/3046239.pdf
- http://files.quiltedpics.com/uploads/1/3/0/7/130776828/novesaj_geluz.pdf
- http://files.ridingisgood.com/uploads/1/3/0/8/130873826/ketaf.pdf
- https://cdn.shopify.com/s/files/1/0432/5592/2852/files/pikabusenelulupuwur.pdf
- https://cdn.shopify.com/s/files/1/0432/7125/8278/files/12870341815.pdf
- https://cdn.shopify.com/s/files/1/0432/5366/1851/files/zununepebuz.pdf
- https://cdn.shopify.com/s/files/1/0436/1152/1181/files/bacterial_resistance_to_antibiotics.pdf
- https://cdn.shopify.com/s/files/1/0439/2986/2312/files/1_99_herblore_guide_osrs.pdf
- https://cdn.shopify.com/s/files/1/0430/3863/8241/files/jaridipopekaketakusajax.pdf
- https://cdn.shopify.com/s/files/1/0428/6434/5255/files/41120767464.pdf
- https://cdn.shopify.com/s/files/1/0439/4395/2539/files/xilovedosopigitagulu.pdf
- https://cdn.shopify.com/s/files/1/0430/1747/0101/files/tenasadunimasi.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/36103472339.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005bcc.bin6f45f0a15c559c9a69598da9aade73e4975a6d591df8efd0c6f669decaf339db |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5BCC | 5728 bytes |
font_01_sfnt_off00006f6f.bin6401ac495ebe34ec4e902322eabaa81856a9d4749b8d508e942f81f18605742e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6F6F | 9948 bytes |
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