MALICIOUS
152
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 Shopify domains hosting other PDFs, forming a link farm. One critical heuristic indicates a direct redirect to known malicious infrastructure via `ttraff.cc`. This suggests the primary purpose is to lure users into clicking malicious links under the guise of accessing a technical document.
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.cc/pify?keyword=encyclopedia+of+computer+science+4th+edition+pdf
- http://files.edocig.com/uploads/1/3/1/8/131871462/6762709.pdf
- http://files.herbesque.com/uploads/1/3/0/7/130775108/juzas_tufelukolanir.pdf
- http://files.thedivadogs.com/uploads/1/3/1/4/131438461/vapivafukenekakabi.pdf
- http://files.besthairextensionswilmington.com/uploads/1/3/1/4/131438245/nojagaluso_muduruja_fasotilifin_pitojuvuto.pdf
- http://files.darrellneufeld.com/uploads/1/3/0/7/130776769/suvumodojidof.pdf
- https://cdn.shopify.com/s/files/1/0437/7310/0184/files/44454568843.pdf
- https://cdn.shopify.com/s/files/1/0429/7274/1791/files/36462092820.pdf
- https://cdn.shopify.com/s/files/1/0432/7086/5060/files/74994724753.pdf
- https://cdn.shopify.com/s/files/1/0429/9830/0823/files/xekororajutuvefe.pdf
- https://cdn.shopify.com/s/files/1/0431/6630/2376/files/90448047535.pdf
- https://cdn.shopify.com/s/files/1/0433/9191/0038/files/feduzejud.pdf
- https://cdn.shopify.com/s/files/1/0430/4614/2114/files/gimubasuregitelatak.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/21244882445.pdf
- https://cdn.shopify.com/s/files/1/0433/7221/6483/files/48070436294.pdf
- https://cdn.shopify.com/s/files/1/0431/2026/3322/files/zifugadat.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000076b3.bin6f08361d70bda626afd67aafdb00383f81c5c8b4e29612931660cc7e38bf12db |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x76B3 | 5424 bytes |
font_01_sfnt_off000088fc.bin2cc565888649cd2effc853e80b0e8fb1ca8927e4154e87f7d54350610bbde090 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x88FC | 11740 bytes |
font_02_sfnt_off0000aef6.binda133098c8ec00180ce5fe37c74b807b143adc5860869a2f7b6211e455203b10 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAEF6 | 16112 bytes |
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