MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded links, many of which point to a link farm designed to redirect users to malicious infrastructure. The primary redirector URL is https://ttraff.com/pify?keyword=bronchiolite+du+nourrisson+pdf, which is flagged as malicious. The document body, though heavily obfuscated, contains references to the redirector and other PDF links, suggesting a social engineering attempt to drive traffic to malicious sites.
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=bronchiolite+du+nourrisson+pdf
- http://files.psychometricdynamics.com/uploads/1/3/1/3/131382032/4e6f419d31e.pdf
- http://files.matthewlamburngames.com/uploads/1/3/1/3/131381422/1e5e88b.pdf
- http://files.thresholdsorganizingco.com/uploads/1/3/1/4/131437981/zupavujani.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zututekafufefosapebuk.pdf
- https://cdn.shopify.com/s/files/1/0430/2811/9706/files/tozusiguwawenimelud.pdf
- https://cdn.shopify.com/s/files/1/0437/4380/5591/files/zuzixubazotonafinokowup.pdf
- https://cdn.shopify.com/s/files/1/0435/5942/0063/files/corporation_bank_account_closure_form.pdf
- https://cdn.shopify.com/s/files/1/0431/5987/9834/files/epidemiologia_clinica_ruiz.pdf
- https://cdn.shopify.com/s/files/1/0431/0990/8637/files/24894264368.pdf
- https://cdn.shopify.com/s/files/1/0433/7680/3990/files/sujotaj.pdf
- https://cdn.shopify.com/s/files/1/0431/5034/4352/files/lazaxegokanuforebibajaj.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_off00006566.binc70f06264c02f56b7402492729769da942b3821eb44aa3f7d5f9498e529f176b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6566 | 5084 bytes |
font_01_sfnt_off000076a2.bin0fec594ad399f76a917ed8fc066c5e257f8f1f87bcc63e0d08adb0e9eb153683 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x76A2 | 11460 bytes |
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