MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous embedded links, with a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body, though partially corrupted, contains a URL that appears to be a lure for a PDF related to 'aprendizaje social y desarrollo de la personalidad'. The presence of many external links suggests a link farm or SEO poisoning attempt to drive traffic to malicious sites. The ML classifier strongly flagged this PDF as malicious.
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=aprendizaje+social+y+desarrollo+de+la+personalidad+libro+pdf
- http://files.katyhawkinsyoga.com/uploads/1/3/1/4/131482931/mitireko-fametajamudu.pdf
- http://files.agelessfitness.net/uploads/1/3/2/7/132741293/f0659a.pdf
- http://files.agapeministry.org/uploads/1/3/2/6/132695194/sumetedona-xularago.pdf
- https://cdn.shopify.com/s/files/1/0429/5986/3961/files/reading_a_text_file_in_java.pdf
- https://cdn.shopify.com/s/files/1/0450/4082/8566/files/83_monte_carlo_ss.pdf
- https://cdn.shopify.com/s/files/1/0438/2926/4546/files/sosefukixepax.pdf
- https://cdn.shopify.com/s/files/1/0431/6089/5650/files/bibireboro.pdf
- https://cdn.shopify.com/s/files/1/0432/3151/0690/files/rozasoveranidikomiva.pdf
- https://cdn.shopify.com/s/files/1/0431/2950/3901/files/agenda_2020_french.pdf
- https://cdn.shopify.com/s/files/1/0428/0123/4076/files/90859780087.pdf
- https://cdn.shopify.com/s/files/1/0431/0571/4338/files/3662868224.pdf
- https://cdn.shopify.com/s/files/1/0427/4988/6620/files/35617159702.pdf
- https://cdn.shopify.com/s/files/1/0431/5987/9841/files/43701272189.pdf
- https://cdn.shopify.com/s/files/1/0437/7618/0376/files/organic_chemistry_jones_5th_edition_download.pdf
- https://cdn.shopify.com/s/files/1/0429/5802/8959/files/92697473654.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_off000059d4.bin4545cc5b3e21b6c6b7210c1a1424998c1b0c873472f62c63a7d30f843343b2fc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x59D4 | 5508 bytes |
font_01_sfnt_off00006cb1.bin603e3448130e37faee09f861621015a5840c8585d20fe1e36136422345a53381 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6CB1 | 11432 bytes |
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