MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded links, many of which point to external PDF files, classifying it as a link farm. One of these links directs to a known malicious redirector, indicating a potential phishing or malware distribution attempt. The ML classifier also strongly flagged this PDF as malicious.
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=lista+de+exercicios+de+analise+combinatoria+com+resolu%25C3%25A7%25C3%25A3o+pdf
- http://files.diocesanchurchdevelopment.org/uploads/1/3/1/6/131606360/fagafumob-xuxumibiwodare-dizofet.pdf
- http://files.5avedesign.com/uploads/1/3/1/8/131856257/9758174.pdf
- http://files.nativitybruins.org/uploads/1/3/0/9/130969057/kibeviviru.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0433/9911/9013/files/76746665367.pdf
- https://cdn.shopify.com/s/files/1/0429/1634/8057/files/58629660901.pdf
- https://cdn.shopify.com/s/files/1/0434/5649/5769/files/kokagibupijofixizomowe.pdf
- https://cdn.shopify.com/s/files/1/0430/7887/7337/files/goburo.pdf
- https://cdn.shopify.com/s/files/1/0428/5507/1900/files/abrasive_water_jet_machining_process.pdf
- https://cdn.shopify.com/s/files/1/0435/9382/6463/files/zeviz.pdf
- https://cdn.shopify.com/s/files/1/0435/5702/8001/files/lunefutaw.pdf
- https://cdn.shopify.com/s/files/1/0431/2412/9952/files/wawewagerenote.pdf
- https://cdn.shopify.com/s/files/1/0438/1271/6701/files/favamunodilazutajil.pdf
- https://cdn.shopify.com/s/files/1/0438/3303/2864/files/proform_crosswalk_395.pdf
- https://cdn.shopify.com/s/files/1/0430/5806/9655/files/godozosotelezusazalune.pdf
- https://cdn.shopify.com/s/files/1/0430/0832/7829/files/rutumebademonudil.pdf
- https://cdn.shopify.com/s/files/1/0431/8897/7813/files/raneb.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006e67.binad10471cca7c95fc9ec5ba62fb81468796622dc8d753a7e69cf3daf349917aeb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6E67 | 5948 bytes |
font_01_sfnt_off000081be.bin263118a4904664105dd3a8358220ecebe15febceaa1a82fa68fa8a31f4ddbbac |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x81BE | 14824 bytes |
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