MALICIOUS
162
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a link to a known malicious redirector, ttraff.com, which is disguised as a free download for English learning materials. The document also hosts a large number of links to other PDFs, likely for SEO manipulation or to distribute further malicious content. The ML classifier strongly indicates maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=learn+english+through+bengali+pdf+free+download
- http://files.birchfieldpractice.co.uk/uploads/1/3/1/4/131455463/jojulixerigiwag.pdf
- http://wuwes.annikgaudet.com/uploads/1/3/1/4/131483254/3905636.pdf
- http://fepaki.alimichelleinteriors.com/uploads/1/3/0/7/130776167/b871c660f2b7c.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0430/5531/7149/files/51105962488.pdf
- https://cdn.shopify.com/s/files/1/0434/3827/6760/files/xabiku.pdf
- https://cdn.shopify.com/s/files/1/0437/6916/8021/files/jarixata.pdf
- https://cdn.shopify.com/s/files/1/0430/1763/3949/files/28641944989.pdf
- https://cdn.shopify.com/s/files/1/0438/4020/9056/files/xubarakuworolujizomulebe.pdf
- https://cdn.shopify.com/s/files/1/0440/1430/5430/files/66571826194.pdf
- https://cdn.shopify.com/s/files/1/0437/9141/7505/files/muxewizerisitonatogev.pdf
- https://cdn.shopify.com/s/files/1/0429/7755/8681/files/wenomafetajipuf.pdf
- https://cdn.shopify.com/s/files/1/0434/4024/2840/files/tupatani.pdf
- https://cdn.shopify.com/s/files/1/0430/4578/1665/files/4369726130.pdf
- https://cdn.shopify.com/s/files/1/0448/0489/8978/files/ccdc_2_stipulated_price_contract.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_off00004464.binc550479d292e6e3d16a18f14e69560562a09ec770ccdb1176bd7e42683b48204 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4464 | 5476 bytes |
font_01_sfnt_off0000570a.bin0794e5afc33552aebe9f8387b842d83b24f97377f3c3aefce6368002fa92a9e6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x570A | 9304 bytes |
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