MALICIOUS
150
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=no%25C3%25A7%25C3%25B5es+de+administra%25C3%25A7%25C3%25A3o+geral+e+p%25C3%25BAblica+para+concursos+pdf'. This URL is likely used to redirect users to a malicious site. The document body, though heavily obfuscated, also contains this URL and other Shopify links, suggesting a link farm or SEO poisoning tactic to distribute the malicious PDF. The ML classifier also strongly flagged this PDF as malicious.
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.ru/pify?keyword=no%25C3%25A7%25C3%25B5es+de+administra%25C3%25A7%25C3%25A3o+geral+e+p%25C3%25BAblica+para+concursos+pdf
- http://files.isobelchurch.com/uploads/1/3/1/1/131163980/6767069.pdf
- http://powiga.cuttyantiques.com/uploads/1/3/1/3/131380005/rumazoratejerezek.pdf
- http://files.pomerenkedrivered.com/uploads/1/3/2/7/132740692/849738.pdf
- http://files.bluemountainseimei.com/uploads/1/3/0/8/130814666/pobesepi.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/volobufepafolosovi.pdf
- https://cdn.shopify.com/s/files/1/0432/0083/9842/files/akuntansi_pemerintah_pusat.pdf
- https://cdn.shopify.com/s/files/1/0433/9888/9621/files/30645872116.pdf
- https://cdn.shopify.com/s/files/1/0428/8135/1839/files/lixibumajiwupitobatigoboz.pdf
- https://cdn.shopify.com/s/files/1/0431/5276/9192/files/76693260503.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/27621352833.pdf
- https://cdn.shopify.com/s/files/1/0432/6758/8252/files/d_d_elder_evils.pdf
- https://cdn.shopify.com/s/files/1/0434/6436/0100/files/92644070792.pdf
- https://cdn.shopify.com/s/files/1/0429/9292/6873/files/mosusomufojibaxuzomom.pdf
- https://cdn.shopify.com/s/files/1/0440/1538/6789/files/bumekeribevubotoxapomego.pdf
- https://cdn.shopify.com/s/files/1/0445/4249/2836/files/lch_m_dng_2020.pdf
- https://cdn.shopify.com/s/files/1/0433/7349/4430/files/powerpoint_to.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_off00008100.bin4d44ee99aa97787bca964b1fc419182a5ec6aee6f8298c206ad13ea450082af2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8100 | 6416 bytes |
font_01_sfnt_off00009535.bin8d4da77b979ea04c0b509b0942d41012c7609aae0b03438bbe71ed3f752883f9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9535 | 14768 bytes |
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