Malware Insights
The PDF contains a large number of embedded links, a technique often used to obscure malicious destinations within a sea of benign ones. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK specifically identifies a link to 'ttraff.com', a known malicious redirector. The PDF_SEO_LINK_FARM heuristic indicates a mass of external PDF links, further supporting the idea of a link farm designed to attract traffic. The ML_NYX_PDF_MALICIOUS score of 0.999992 strongly suggests malicious intent. No scripts were extracted, and the document body is heavily obfuscated, but the presence of the malicious redirector URL is the primary indicator of compromise.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 3
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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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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=composicion+centesimal+ejercicios+resueltos+3+eso+pdf
- http://files.bethlehemchristianmission.com/uploads/1/3/1/6/131606257/bofuxizovidili_pazeweviwulo_jonujibiji_bupidokokabo.pdf
- http://mewazagis.brendargarcia.com/uploads/1/3/0/7/130776208/1aa564aafba3.pdf
- http://xawefiteg.tiagarrawalk.com/uploads/1/3/2/6/132681556/lusaloxuzafodo.pdf
- https://cdn.shopify.com/s/files/1/0450/7385/8710/files/2d_animation_tutorials_free_download.pdf
- https://cdn.shopify.com/s/files/1/0440/8619/8424/files/us_navy_dive_manual.pdf
- https://cdn.shopify.com/s/files/1/0439/8232/3870/files/79624557664.pdf
- https://cdn.shopify.com/s/files/1/0434/3159/2092/files/transparent_color_hex.pdf
- https://cdn.shopify.com/s/files/1/0434/4712/4135/files/biwagavid.pdf
- https://cdn.shopify.com/s/files/1/0428/1656/9500/files/18126052679.pdf
- https://cdn.shopify.com/s/files/1/0429/8607/8369/files/radar_anti_jamming_techniques.pdf
- https://cdn.shopify.com/s/files/1/0431/0034/0381/files/51561769576.pdf
- https://cdn.shopify.com/s/files/1/0428/3393/6547/files/69374153308.pdf
- https://cdn.shopify.com/s/files/1/0432/4343/8242/files/bemegorunesafazib.pdf
- https://cdn.shopify.com/s/files/1/0432/2017/2957/files/97897734371.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/20880330559.pdf
- https://cdn.shopify.com/s/files/1/0429/8981/3909/files/bevojikoferiresibubasujip.pdf
- https://cdn.shopify.com/s/files/1/0431/7226/6138/files/tokepubujig.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_off00006ed4.binaa9999064f0d05bc955fcb6628f6852c719ce0427d9749c809d07f625d7147fe |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6ED4 | 5448 bytes |
font_01_sfnt_off0000813f.binb24b5256991f31e7f61bbadb38ffa56117395aa9831ae871c957c519dea65ae9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x813F | 13416 bytes |
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