MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a large number of embedded links, with one identified as a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, appears to be a lure related to 'definition laboratoire de biologie médicale pdf', suggesting a targeted phishing attempt. The presence of numerous Shopify links, while some are benign, indicates a link farm strategy to obscure the malicious redirector.
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=d%25C3%25A9finition+laboratoire+de+biologie+m%25C3%25A9dicale+pdf
- http://files.jmfenterprisesllc.com/uploads/1/3/1/6/131606169/wijoj.pdf
- http://files.churchofhenniker.org/uploads/1/3/2/7/132740501/4591980.pdf
- http://files.greaterfayettecountychamber.org/uploads/1/3/1/4/131408056/lokadumasup.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0428/2135/3635/files/mozifofalokonalateguvuz.pdf
- https://cdn.shopify.com/s/files/1/0430/0485/4426/files/tadowol.pdf
- https://cdn.shopify.com/s/files/1/0435/0155/1771/files/mupasarekovifabe.pdf
- https://cdn.shopify.com/s/files/1/0431/4349/5841/files/jexukixazowarope.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/12729031526.pdf
- https://cdn.shopify.com/s/files/1/0432/4235/6904/files/tonipogeditiwexorevo.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/53262414385.pdf
- https://cdn.shopify.com/s/files/1/0434/8513/5014/files/lajureripapuvazij.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/befuxaj.pdf
- https://cdn.shopify.com/s/files/1/0433/0071/6694/files/naxinisetejiredomox.pdf
- https://cdn.shopify.com/s/files/1/0437/2175/2731/files/ralavazikoso.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_off0000923e.bin9963df0909179481c40402dd61589d90bb94a5dfa653f19644aa7a216fd9f895 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x923E | 5364 bytes |
font_01_sfnt_off0000a417.binad620739c06ec8fe8c1d9b797d70427b392cd2420ebca3423464f086164a9be2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA417 | 11740 bytes |
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