MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a high number of embedded links, many of which point to redirector infrastructure. The primary malicious URL identified is https://ttraff.cc/pify?keyword=5th+grade+math+problems+pdf, which is likely used to direct users to further malicious content. The ML classifier also strongly indicated maliciousness.
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.cc/pify?keyword=5th+grade+math+problems+pdf
- http://files.kimberlydtesta.com/uploads/1/3/1/4/131452935/ec6843907c.pdf
- http://files.collaborativemathematics.org/uploads/1/3/0/7/130739146/a7ceaa9c14c6.pdf
- http://kumifamik.primarytechunit.com/uploads/1/3/0/7/130739629/6405597.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0432/8374/2884/files/annotation_guidelines_nlp.pdf
- https://cdn.shopify.com/s/files/1/0433/4636/2533/files/fidinegi.pdf
- https://cdn.shopify.com/s/files/1/0436/5202/2430/files/wegipofubiwo.pdf
- https://cdn.shopify.com/s/files/1/0436/3167/3504/files/adobe_lightroom_tutorials.pdf
- https://cdn.shopify.com/s/files/1/0427/9477/8791/files/18604415677.pdf
- https://cdn.shopify.com/s/files/1/0448/9219/2923/files/rocky_mountain_high_lyrics.pdf
- https://cdn.shopify.com/s/files/1/0441/3951/1960/files/g_talk_dwnload.pdf
- https://cdn.shopify.com/s/files/1/0439/8183/2350/files/xezowoselanedek.pdf
- https://cdn.shopify.com/s/files/1/0429/5042/6780/files/kitaberonogisi.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_off00006303.bin692bbf502c9c35c9172cec9c8d4ec53e621589b1e7e54d59aa57ca149e07c346 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6303 | 5624 bytes |
font_01_sfnt_off000075f6.bina2761a299b906c86a18376261ab0c0d0f6fb9ba60c9e0c54c1d836935494ebd7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x75F6 | 10536 bytes |
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