MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded links, with one identified as a malicious redirector pointing to 'ttraff.com'. The document body and embedded links suggest a lure to academic or informational content, likely to trick users into visiting malicious sites. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a phishing or redirection attack.
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=bncc+pdf+2020+ensino+fundamental
- http://zirevi.cbwilsondesign.com/uploads/1/3/1/4/131406893/xivonuj_budamewuxaj_luninune.pdf
- http://files.paulharryallen.com/uploads/1/3/1/4/131452778/67e534c1.pdf
- http://files.teachpopulationhealth.org/uploads/1/3/1/8/131858661/kekigadopu-zuvimukolawop-zujok.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0434/4433/8838/files/bruckner_stenter_machine.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pafinekumukomotutawewokab.pdf
- https://cdn.shopify.com/s/files/1/0429/9925/1093/files/bradbury_short_stories.pdf
- https://cdn.shopify.com/s/files/1/0432/7754/9728/files/jetomizuribolopetuxopu.pdf
- https://cdn.shopify.com/s/files/1/0433/4324/9563/files/59902779341.pdf
- https://cdn.shopify.com/s/files/1/0427/6482/8838/files/lupebogizeletotafidu.pdf
- https://cdn.shopify.com/s/files/1/0433/8450/4474/files/49572552493.pdf
- https://cdn.shopify.com/s/files/1/0432/6316/4580/files/computer_hardware_and_software_book.pdf
- https://cdn.shopify.com/s/files/1/0429/0691/0887/files/84755846885.pdf
- https://cdn.shopify.com/s/files/1/0431/0299/4586/files/10878132306.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_off00006725.bin9518355bad2770ca036005208e0159b654373f0956762400132f1931c10db79c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6725 | 5528 bytes |
font_01_sfnt_off000079eb.bin6c31b27851e2fd921d2032d9c14f4e775df984a4debc2751e2656c0cd339f17b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x79EB | 10300 bytes |
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