MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF file contains numerous embedded links, with one specifically pointing to a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains text related to 'Cours portugais brésilien pdf', suggesting a lure for users searching for such content. The presence of a malicious redirector URL indicates an attempt to lead the user to a harmful site.
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=cours+portugais+br%25C3%25A9silien+pdf
- http://files.lawofficesofmarkjcarrollpllc.com/uploads/1/3/1/0/131070151/ed40d5.pdf
- http://files.therapyandlearningservices.com/uploads/1/3/0/8/130814124/c2a23698c.pdf
- http://files.hammellwinealliance.com/uploads/1/3/0/7/130775627/3780453.pdf
- http://files.firstpresperry.org/uploads/1/3/2/6/132683111/zogezesepaka.pdf
- http://files.firstpresperry.org/uploads/1/3/2/6/132683111
- https://cdn.shopify.com/s/files/1/0434/2362/9477/files/26362303679.pdf
- https://cdn.shopify.com/s/files/1/0427/8360/4903/files/sokapujido.pdf
- https://cdn.shopify.com/s/files/1/0436/4396/1504/files/vusafadenafilesug.pdf
- https://cdn.shopify.com/s/files/1/0430/0426/4601/files/42361912365.pdf
- https://cdn.shopify.com/s/files/1/0432/5723/3576/files/27090209316.pdf
- https://cdn.shopify.com/s/files/1/0429/6795/7658/files/jefotoseseramogaral.pdf
- https://cdn.shopify.com/s/files/1/0428/8184/3356/files/92025199710.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/46287179129.pdf
- https://cdn.shopify.com/s/files/1/0430/4519/1841/files/84569822148.pdf
- https://cdn.shopify.com/s/files/1/0429/8565/2375/files/bixusitu.pdf
- https://cdn.shopify.com/s/files/1/0433/4852/5206/files/fiwozuwigezevugaxav.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_off0000883b.bin3a2a30970514af3bb2d8a291a5917b8e663808bf89e11c1d081a84d88d359ee0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x883B | 5396 bytes |
font_01_sfnt_off00009a5f.bin0402642934b3596e5b63c5c354676d1ac82e9c282dfd5bc8f1ffaac7fa28d069 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9A5F | 12256 bytes |
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