MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a critical heuristic firing for linking to known malicious redirector infrastructure, specifically 'https://ttraff.ru/wix?keyword=bourbaki+algebre+pdf'. It also exhibits characteristics of a PDF link farm, with numerous external links. While no scripts were extracted, the presence of malicious URLs and the ML classifier's high confidence suggest a phishing or redirection attempt, likely delivered as a spearphishing attachment.
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/wix?keyword=bourbaki+algebre+pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0431/3543/4901/files/53013844844.pdf
- https://cdn.shopify.com/s/files/1/0433/4754/2165/files/joxitasadugokokonigavim.pdf
- https://cdn.shopify.com/s/files/1/0428/5300/7526/files/dance_video_song_sharechat.pdf
- https://cdn.shopify.com/s/files/1/0451/2360/0538/files/68540416214.pdf
- https://cdn.shopify.com/s/files/1/0433/2437/5195/files/les_catastrophes_naturelles_dans_le_monde.pdf
- https://cdn.shopify.com/s/files/1/0433/1284/0862/files/english_grammar_articles_list.pdf
- https://cdn.shopify.com/s/files/1/0428/7230/7875/files/zapowijikojijuxalalo.pdf
- https://cdn.shopify.com/s/files/1/0431/8180/1629/files/botewupunube.pdf
- https://static.usrfiles.com/ugd/26481d_67241b2604cb4874b8d18a42c9caeb74.pdf
- https://static.usrfiles.com/ugd/1e32c2_df2aab0eef9f49458795459a98a77bbb.pdf
- https://cdn.shopify.com/s/files/1/0438/3594/9218/files/guwomuwetugoxed.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/58014629257.pdf
- https://cdn.shopify.com/s/files/1/0435/6725/1617/files/public_administration_syllabus_for_upsc_mains.pdf
- https://cdn.shopify.com/s/files/1/0435/8848/5288/files/ap_grama_sachivalayam_admit_card_2019.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_off000080b8.bine83b9e51995cfd2f6a75b06d01394b327249aac61058fd2e9479bb39fdcaa53a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x80B8 | 5284 bytes |
font_01_sfnt_off000092c2.bin95702446c1ea0744b87a018962436e7902d511b20f65be5fa504e04f10f2fec9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x92C2 | 10068 bytes |
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