MALICIOUS
150
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link to a known malicious redirector, ttraff.ru, which is disguised with a keyword related to educational materials. The document body also contains numerous links to external PDFs hosted on various domains, suggesting a link farm or SEO poisoning tactic to improve search engine ranking for malicious content. The presence of a malicious redirector link indicates an attempt to lead the user to a malicious site.
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=mcgraw+hill+4th+grade+math+workbook+pdf
- http://fafos.popkoproductions.com/uploads/1/3/1/4/131407469/zefefetufadura.pdf
- http://files.nigerianmeadows.com/uploads/1/3/0/8/130813317/fipagiga.pdf
- http://files.dvrealworldlearning.com/uploads/1/3/2/7/132712129/nimijesa_bonasamuwuwuf_babagafipiviwi.pdf
- http://files.nbmarysville.org/uploads/1/3/0/7/130739654/8708029.pdf
- http://files.michaelbrownslawoffice.com/uploads/1/3/1/4/131406762/xajixolaxexojobegu.pdf
- https://cdn.shopify.com/s/files/1/0438/4037/2896/files/low_oxalate_diet_spanish.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fakuwonilojovaxibudebu.pdf
- https://cdn.shopify.com/s/files/1/0445/6103/9524/files/autogreffe_de_cellules_souches_hmatopotiques.pdf
- https://cdn.shopify.com/s/files/1/0432/7063/5678/files/11779017330.pdf
- https://cdn.shopify.com/s/files/1/0436/5913/3081/files/50943597618.pdf
- https://cdn.shopify.com/s/files/1/0438/9175/3115/files/tatavarurivemotokaxib.pdf
- https://cdn.shopify.com/s/files/1/0431/0879/4525/files/59517088879.pdf
- https://cdn.shopify.com/s/files/1/0431/6263/2360/files/vikigosaki.pdf
- https://cdn.shopify.com/s/files/1/0431/8461/9680/files/lorexiromonofo.pdf
- https://cdn.shopify.com/s/files/1/0432/6798/1476/files/72248784186.pdf
- https://cdn.shopify.com/s/files/1/0433/8352/1445/files/korean_visa_application_form_file.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_off00005d82.bin0e687e9ba349f430585652046a5b701a6824048114341fa781898f5270f255bc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5D82 | 5780 bytes |
font_01_sfnt_off0000712d.bince5c9eb64c32839c1e7a451830d40ae5fbc9bc5dc40e5d470c17d5231e02d019 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x712D | 10700 bytes |
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