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 pointing to 'https://cctraff.ru/123?keyword=findlay+city+schools+final+forms'. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains a reference to the same malicious URL, suggesting an attempt to redirect the user to a potentially harmful site for phishing or malware delivery.
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://cctraff.ru/123?keyword=findlay+city+schools+final+forms
- https://cdn-cms.f-static.net/uploads/4386594/normal_5f93a7fb94223.pdf
- https://cdn-cms.f-static.net/uploads/4375083/normal_5f8d0c9a9ab62.pdf
- https://cdn-cms.f-static.net/uploads/4366304/normal_5f8c25f432797.pdf
- https://cdn-cms.f-static.net/uploads/4374207/normal_5f8d90a78244b.pdf
- https://cdn-cms.f-static.net/uploads/4368735/normal_5f904c5b94c78.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0431/6980/8535/files/online_to_doc_file_convert.pdf
- https://s3.amazonaws.com/felasorarabipis/godogazodaroketesur.pdf
- https://s3.amazonaws.com/jamokaroxoj/gosujijupavoresun.pdf
- https://s3.amazonaws.com/xunilukegez/zuvebivumezen.pdf
- https://s3.amazonaws.com/dudurat/ross_et_al_1977_false_consensus.pdf
- https://s3.amazonaws.com/fasanag/razoronorux.pdf
- https://cdn.shopify.com/s/files/1/0504/1861/4432/files/77720872981.pdf
- https://cdn.shopify.com/s/files/1/0495/9807/0948/files/highland_local_schools_sparta_ohio.pdf
- https://cdn.shopify.com/s/files/1/0498/0002/0130/files/80620906469.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_off00011b0d.bin830098c181ba2bf1942ef0488a36dc47cbeb377dc103bf1607f4e04deb9c6d18 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B0D | 5320 bytes |
font_01_sfnt_off00012d04.bin697384fa87351b91447c2722b204a6556982e40ced31c8c57895c1291e001a19 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D04 | 10888 bytes |
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