MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a mass of external links, with one specifically pointing to a known malicious redirector infrastructure. The document body, though partially corrupted, contains the text 'Coliformes fécaux definition pdf' and the malicious URL, suggesting a lure to a phishing or malware distribution site. The ML classifier strongly indicated maliciousness.
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=coliformes+f%25C3%25A9caux+d%25C3%25A9finition+pdf
- http://files.alhs18011.org/uploads/1/3/1/6/131637477/89e45e6db95a3f.pdf
- http://files.demanddj.com/uploads/1/3/0/7/130776381/4038264.pdf
- http://wuriwa.sadeghimckenzie.com/uploads/1/3/1/3/131381204/6fb4d.pdf
- https://cdn.shopify.com/s/files/1/0430/9755/5093/files/jatapizipabo.pdf
- https://cdn.shopify.com/s/files/1/0436/8911/5801/files/nuwomibutiwitapeta.pdf
- https://cdn.shopify.com/s/files/1/0430/6511/4775/files/types_of_algorithm_in_computer_science.pdf
- https://cdn.shopify.com/s/files/1/0435/5037/6099/files/cadillac_cts_2020_owners_manual.pdf
- https://cdn.shopify.com/s/files/1/0432/9940/5977/files/37838575692.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wevanedinuwisuvajolow.pdf
- https://cdn.shopify.com/s/files/1/0439/8995/8814/files/xekilemawiveru.pdf
- https://cdn.shopify.com/s/files/1/0431/9654/7230/files/8854875140.pdf
- https://cdn.shopify.com/s/files/1/0440/3943/8486/files/ripevokusomilumeti.pdf
- https://cdn.shopify.com/s/files/1/0430/7910/6724/files/calculus_graphical_numerical_algebraic_4th_edition_online_textbook.pdf
- https://cdn.shopify.com/s/files/1/0429/7211/9193/files/dadenizifirepusawonewara.pdf
- https://cdn.shopify.com/s/files/1/0431/6299/2795/files/54502598262.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/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ad36.bind238aee1644519c267fb85ac3f45a4daf08c42ed1d59c282b1ef5d0221c3839b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAD36 | 5416 bytes |
font_01_sfnt_off0000bf47.bin33790ec6ae5d14961465dc480022f4910a08d2530517a0f547ac1071e7106b72 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBF47 | 12796 bytes |
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