MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links and text that direct users to a malicious redirector URL, disguised as IELTS practice tests. The heuristic firings indicate the PDF is designed as a link farm, with one critical link pointing to known malicious infrastructure. While no scripts were extracted, the presence of embedded URLs and the ML classifier's high confidence suggest a malicious intent to redirect users to harmful 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=ielts+listening+online+practice+tests+with+answers
- http://doravevi.houghtonmetz.com/uploads/1/3/0/8/130874679/powifaxegezafe-xedupopolinokag-lusimuzaki.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0432/6467/1909/files/trapianto_cellule_staminali_emopoietiche.pdf
- https://cdn.shopify.com/s/files/1/0436/6244/2661/files/tojafakalozufasakiz.pdf
- https://cdn.shopify.com/s/files/1/0428/5900/4070/files/69918417241.pdf
- https://cdn.shopify.com/s/files/1/0436/7430/4662/files/directv_bossier_city_channel_guide.pdf
- https://cdn.shopify.com/s/files/1/0437/9761/0657/files/77565025718.pdf
- https://cdn.shopify.com/s/files/1/0464/7436/3048/files/lathe_di_chadar_remix_video_song.pdf
- https://cdn.shopify.com/s/files/1/0431/7990/1085/files/87176593958.pdf
- https://cdn.shopify.com/s/files/1/0435/8933/7256/files/single_dial_buttress_thread_form_gauge.pdf
- https://cdn.shopify.com/s/files/1/0431/2891/4074/files/dafido.pdf
- https://cdn.shopify.com/s/files/1/0431/7354/4093/files/aide_mmoire_mathmatique_de_l_ingnieur.pdf
- https://cdn.shopify.com/s/files/1/0430/6649/1042/files/subanajebef.pdf
- https://cdn.shopify.com/s/files/1/0440/6122/9206/files/pakizeromagupowuduv.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_off00007612.bin8d28c0ecc5397d80f16b1c1240b826dabcca2930d109989fe25d12efaadb6eaa |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7612 | 5224 bytes |
font_01_sfnt_off000087dc.binba2f38f9fba4deecf9de765a1d3b71b5042e68dc0741ceaaa86286ba79bab840 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x87DC | 10468 bytes |
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