MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links, with one critical heuristic identifying it as a malicious redirector. The primary malicious URL, 'https://ttraff.link/wix?keyword=exercices+corrig%25C3%25A9s+sur+la+chimie+atomistique+pdf', is designed to redirect users to potentially harmful content. The document body, though heavily obfuscated, contains text related to chemistry exercises, suggesting a lure to disguise the malicious intent. The ML classifier strongly supports the malicious verdict.
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.link/wix?keyword=exercices+corrig%25C3%25A9s+sur+la+chimie+atomistique+pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/269bb8_fa24c1c2bbeb438da850c015212557d1.pdf
- https://static.usrfiles.com/ugd/857e61_434fc75da8a947c38c5d1ca337d04188.pdf
- https://static.usrfiles.com/ugd/54b9a1_70ea18f21941472f989101ae805ab9fa.pdf
- https://static.usrfiles.com/ugd/efb3f0_11535c4fb9114de4a03241c0c9c77c21.pdf
- https://static.usrfiles.com/ugd/cac9e4_f3079048d0024631b800e12e25027a8e.pdf
- https://static.usrfiles.com/ugd/05301a_5400fabd009f4cad86ad013f0e61909e.pdf
- https://static.usrfiles.com/ugd/98e298_939dfb27f9a34fe8b06fe4d872619d05.pdf
- https://cdn.shopify.com/s/files/1/0431/8350/5570/files/proform_xp_550.pdf
- https://cdn.shopify.com/s/files/1/0462/6622/0695/files/6_column_balance_sheet.pdf
- https://static.usrfiles.com/ugd/fe83c3_4f6ad678e72a4b4abdd68dfb91fbe1dc.pdf
- https://static.usrfiles.com/ugd/b8c837_83b9462286874da28ee99fd604e281d4.pdf
- https://static.usrfiles.com/ugd/c8df25_93128578f6ce430d8d1fc0dbb57281df.pdf
- https://static.usrfiles.com/ugd/cdfdba_5f58d39dd41c4dddb84da191b046564c.pdf
- https://static.usrfiles.com/ugd/77eba6_58c04cf83b37480dbb73b373665a0ff4.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_off0000913e.binaa81396a1a8357cef7187861a0fa9b31b739563f842f36113053b405b97fd771 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x913E | 5864 bytes |
font_01_sfnt_off0000a4cb.bina40cca2f121ee7fb4dfc9f5c8789bce24d1c489c5d0e93168afec8d9f03e21b4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA4CB | 12264 bytes |
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