MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a significant number of embedded links, many of which point to external resources. One critical heuristic identified a link to a known malicious redirector, specifically 'https://ttraff.cc/pify?keyword=brian+weiss+libros+espa%25C3%25B1ol+pdf'. This suggests the document is part of a link farm or SEO spam campaign, designed to drive traffic to malicious sites. The ML classifier also strongly indicated maliciousness.
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=brian+weiss+libros+espa%25C3%25B1ol+pdf
- http://files.lenarobinwrites.com/uploads/1/3/1/8/131871424/lojep_zakevibelidopa_sejigixe.pdf
- http://files.triplecreekhunts.com/uploads/1/3/0/8/130814200/zojagitukujov.pdf
- http://files.itstimefitnessaz.com/uploads/1/3/1/6/131636642/8135416.pdf
- http://files.genevamello.com/uploads/1/3/0/7/130740196/658ca.pdf
- http://files.albumtoba.com/uploads/1/3/0/7/130775379/57b9fc0e55.pdf
- https://cdn.shopify.com/s/files/1/0438/9689/7704/files/82393156883.pdf
- https://cdn.shopify.com/s/files/1/0449/3633/1419/files/aura_carlos_fuentes_english.pdf
- https://cdn.shopify.com/s/files/1/0432/8167/8494/files/585330703.pdf
- https://cdn.shopify.com/s/files/1/0438/7930/1275/files/15336383250.pdf
- https://cdn.shopify.com/s/files/1/0432/0549/2904/files/nasofewonerugirutak.pdf
- https://cdn.shopify.com/s/files/1/0435/3458/1919/files/wosaxatoxobefozawixoxolez.pdf
- https://cdn.shopify.com/s/files/1/0435/5214/5560/files/kumuv.pdf
- https://cdn.shopify.com/s/files/1/0432/1692/8923/files/kigasus.pdf
- https://cdn.shopify.com/s/files/1/0434/8418/4728/files/relizabujukepasemopa.pdf
- https://cdn.shopify.com/s/files/1/0432/5166/3012/files/afro_asian_literature_syllabus.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_off0000b8e5.bin082a62bda314eadbee89eef14712a87bbe2beb7eb9d10b71b93bfb867dfbec6d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB8E5 | 5528 bytes |
font_01_sfnt_off0000cb82.bin357fb53115807c44efc6623e9cf0501b757b3577f2685a800dd59f6d5151b40b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB82 | 11572 bytes |
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