MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links that redirect to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The ML classifier also strongly flagged this PDF as malicious. The document body, though heavily obfuscated, contains a URL that appears to be part of a link farm designed to attract search engine traffic, further supporting a malicious intent to redirect users.
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.com/pify?keyword=bacterial+toxins+classification+pdf
- http://vebelipu.performance-icehockey-english.com/uploads/1/3/0/8/130814328/molinoderipuwef.pdf
- http://files.baybat-edtech.com/uploads/1/3/0/7/130740264/3cfb52c8.pdf
- http://files.shannontovey.com/uploads/1/3/2/8/132814086/5ca718.pdf
- http://files.kgarciaclassroom.com/uploads/1/3/1/4/131483138/kiwuba.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0432/2381/0211/files/61265022685.pdf
- https://cdn.shopify.com/s/files/1/0436/3137/8590/files/55314676061.pdf
- https://cdn.shopify.com/s/files/1/0429/5956/9055/files/sorumapifasomagu.pdf
- https://cdn.shopify.com/s/files/1/0430/3749/1357/files/3638280933.pdf
- https://cdn.shopify.com/s/files/1/0438/0049/4237/files/93084759943.pdf
- https://cdn.shopify.com/s/files/1/0429/5114/7679/files/bowuvilajorefibad.pdf
- https://cdn.shopify.com/s/files/1/0429/2712/8735/files/32945473446.pdf
- https://cdn.shopify.com/s/files/1/0432/4130/8320/files/22667201245.pdf
- https://cdn.shopify.com/s/files/1/0435/7075/7791/files/24239399913.pdf
- https://cdn.shopify.com/s/files/1/0429/5986/3961/files/derivative_of_a_function.pdf
- https://cdn.shopify.com/s/files/1/0430/8461/1733/files/14220422240.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_off00009fc1.binbfc7a5a4bfb333e5e595ad3b56842520ceb909ebeadd0cc4a75f748c23e9d5de |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9FC1 | 5264 bytes |
font_01_sfnt_off0000b1b2.bin33b53c073368abb80849d05cf63ae6b298dfe6b4b9ea46868220fe079ef682d7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB1B2 | 10512 bytes |
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