MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by a machine learning classifier and contains a critical heuristic firing for a malicious redirector link. It also exhibits a PDF link farm, embedding numerous external PDF links, with one specifically pointing to `https://ttraff.com/pify?keyword=benchmarking+pdf+libro`. The document body, though heavily obfuscated, contains this URL and other PDF links, suggesting a lure to external content. No scripts were extracted from this sample.
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=benchmarking+pdf+libro
- http://files.evolutionmeetings.org/uploads/1/3/0/8/130874598/mafax.pdf
- http://files.shsmusic.org/uploads/1/3/1/4/131453256/maxijekoxo-sababusexesi-xorizipijo-ganokamede.pdf
- http://files.troyelementaryspanish.com/uploads/1/3/1/8/131856904/setame.pdf
- http://files.thestudentscoop.com/uploads/1/3/1/4/131453395/tosomujim.pdf
- https://cdn.shopify.com/s/files/1/0431/8052/3678/files/zomowibovugetujikijefati.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xovigaza.pdf
- https://cdn.shopify.com/s/files/1/0433/3305/8715/files/84219782241.pdf
- https://cdn.shopify.com/s/files/1/0433/2892/9960/files/satirimasimo.pdf
- https://cdn.shopify.com/s/files/1/0428/3708/2271/files/lg_g3_unlock.pdf
- https://cdn.shopify.com/s/files/1/0430/5177/8202/files/76069771169.pdf
- https://cdn.shopify.com/s/files/1/0429/8643/8807/files/25220413382.pdf
- https://cdn.shopify.com/s/files/1/0431/5286/7494/files/tatutakurajo.pdf
- https://cdn.shopify.com/s/files/1/0429/5249/1159/files/6765556976.pdf
- https://cdn.shopify.com/s/files/1/0427/5198/3783/files/rosilazozerufine.pdf
- https://cdn.shopify.com/s/files/1/0438/3558/8770/files/37182307015.pdf
- https://cdn.shopify.com/s/files/1/0430/3133/0969/files/83640988785.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_off00004c90.bin8a81098894d6b6a7c004630b4534d6a67bea2a4a898c4a66dbc37cd8e259b83f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4C90 | 5644 bytes |
font_01_sfnt_off00005f96.binc5823d62fa517320ef4964ac63de328fa975ecc6853221ea9757986b1581eeca |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5F96 | 10408 bytes |
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