MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded links, many of which point to a redirector infrastructure. The primary malicious URL identified is https://ttraff.ru/pify?keyword=oxford+discover+3+teacher+s+book+pdf, which is likely used to redirect users to further malicious content. The ML classifier strongly indicated maliciousness, and the presence of numerous external links suggests 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=oxford+discover+3+teacher+s+book+pdf
- http://files.garimaahuja.com/uploads/1/3/1/6/131636651/d42dbb6.pdf
- http://files.rune-path.com/uploads/1/3/2/6/132695813/nasevisoxezokez.pdf
- http://files.wentworthfallsgardenclub.com/uploads/1/3/0/7/130738553/627d7.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0429/0733/6867/files/viryual_girl_hd.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/37144816260.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zonamanasalusowalu.pdf
- https://cdn.shopify.com/s/files/1/0433/3027/3448/files/71521563153.pdf
- https://cdn.shopify.com/s/files/1/0435/7400/1825/files/42472611406.pdf
- https://cdn.shopify.com/s/files/1/0431/8494/7357/files/nukeba.pdf
- https://cdn.shopify.com/s/files/1/0429/3269/9292/files/77269712068.pdf
- https://cdn.shopify.com/s/files/1/0431/4605/1744/files/97671510357.pdf
- https://cdn.shopify.com/s/files/1/0439/5833/7694/files/adobe_after_effects_cs4_tutorials_for_beginners.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_off00005024.binbd61317e13b1ee6254a376c33652cda498f40fd1d41c308f5ab1a547d71fa24d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5024 | 5732 bytes |
font_01_sfnt_off000063a4.bin71c14d7713251b5b447bb9e5a2f2e1ceb3ad1ab5b4aed8bb99230e2b8a8fae42 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x63A4 | 10700 bytes |
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