MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains a heuristic firing for linking to known malicious redirector infrastructure, specifically 'ttraff.ru'. The document body, though heavily obfuscated, contains text related to '7th grade math worksheets' and the malicious URL, suggesting a lure to disguise the malicious intent. The presence of a large number of external PDF links further indicates a link farm or SEO poisoning attempt to distribute malicious content.
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.ru/pify?keyword=7th+grade+math+worksheets+with+answer+key+pdf
- http://files.herbalist-thehealingearth.com/uploads/1/3/0/8/130874683/5982634.pdf
- http://files.arenagraphicspw.com/uploads/1/3/1/4/131453056/36cc0cadc76.pdf
- http://files.supervisedvisitations.net/uploads/1/3/1/1/131164488/a560642.pdf
- http://files.quitmanhighspanish.com/uploads/1/3/0/8/130874433/8660333.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0441/1644/3288/files/cardcaptor_sakura_wallpaper.pdf
- https://cdn.shopify.com/s/files/1/0430/9889/8592/files/56700871984.pdf
- https://cdn.shopify.com/s/files/1/0432/0994/9341/files/sanema.pdf
- https://cdn.shopify.com/s/files/1/0432/1152/2209/files/dimufubabimuxaniberekupob.pdf
- https://cdn.shopify.com/s/files/1/0428/2250/0518/files/80263713406.pdf
- https://cdn.shopify.com/s/files/1/0431/5689/7947/files/bepuwikamosefurovi.pdf
- https://cdn.shopify.com/s/files/1/0440/4012/6614/files/12265858073.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kupenase.pdf
- https://cdn.shopify.com/s/files/1/0430/6986/6141/files/zawapilofazij.pdf
- https://cdn.shopify.com/s/files/1/0439/4336/2715/files/24246714607.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_off0000561f.binf9ad9b194a89145526c8d6f3a682c0c9cee5ba4c427a85116e0c4a5bc599ce08 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x561F | 5668 bytes |
font_01_sfnt_off00006963.bin84645f35e85af9c3e17afc3b5ce53fb284f855ce499d21af22ffb0a3261cc84d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6963 | 9892 bytes |
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