MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a link disguised as a search result for an IELTS writing book. This link, however, redirects to a known malicious domain (ttraff.ru), indicating a phishing or redirection attempt. The presence of numerous external PDF links, many pointing to Shopify, suggests a link farm or SEO manipulation tactic to distribute malicious content. The ML classifier strongly flagged this PDF as malicious.
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=best+practice+book+for+ielts+writing+pdf
- http://files.manuseva.org/uploads/1/3/0/8/130874050/tubexaromagili.pdf
- http://files.pleasantonlimoandbus.com/uploads/1/3/0/8/130873794/abecc8.pdf
- http://files.orchardsumc.com/uploads/1/3/1/4/131454316/kokewe_ditisiv_romupiwuno_nulegegi.pdf
- http://xuwukis.secondsportswimming.com/uploads/1/3/0/9/130969742/5840248.pdf
- http://files.pulpcreationsmd.com/uploads/1/3/1/3/131381555/dozidudiwizawinibewi.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0434/4312/6438/files/human_cell_structure_and_function.pdf
- https://cdn.shopify.com/s/files/1/0431/7564/1247/files/lupupuzegerajifasaw.pdf
- https://cdn.shopify.com/s/files/1/0432/1335/7214/files/46443832120.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zenafepejeviwasi.pdf
- https://cdn.shopify.com/s/files/1/0433/7709/8913/files/welamarunamotodexepuzalu.pdf
- https://cdn.shopify.com/s/files/1/0430/0128/2711/files/xetep.pdf
- https://cdn.shopify.com/s/files/1/0435/9743/0941/files/92064823311.pdf
- https://cdn.shopify.com/s/files/1/0429/8866/7039/files/sanafapofi.pdf
- https://cdn.shopify.com/s/files/1/0429/9853/0202/files/h_pylori_sintomas.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_off00019976.binf77e9c4d446347427096df4494ec2cf0154af5978425903812aae00de6426a4a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x19976 | 5668 bytes |
font_01_sfnt_off0001ace1.bin105b1d546c811c7ccf727225691cb9075576887b645461c4983f8aef024d8a17 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1ACE1 | 13128 bytes |
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