MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link to a redirector hosted at 'ttraff.cc', which is flagged as malicious. The document body, though heavily obfuscated, contains text related to downloading legal books, suggesting a lure. The PDF also contains a large number of external links, many pointing to Shopify domains, likely part of a link farm to improve search engine ranking for malicious content. The ML classifier strongly indicates maliciousness.
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.cc/wix?keyword=descargar+libros+de+derecho+civil+gratis+pdf
- https://static.usrfiles.com/ugd/b8c837_94edcd628222499db122969ffb686d75.pdf
- https://static.usrfiles.com/ugd/09273f_a831f9bf46184320bd514ee078227e8a.pdf
- https://static.usrfiles.com/ugd/b8c837_36c689e817fc43389023680dad8c4199.pdf
- https://cdn.shopify.com/s/files/1/0463/2500/6497/files/voter_id_challan_form_sbi.pdf
- https://cdn.shopify.com/s/files/1/0432/7886/0454/files/leganilifuzagof.pdf
- https://cdn.shopify.com/s/files/1/0431/6617/1285/files/absceso_dental_en_nios.pdf
- https://cdn.shopify.com/s/files/1/0437/4783/6065/files/tijalevozogukituj.pdf
- https://cdn.shopify.com/s/files/1/0440/7810/4728/files/ruduj.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xikidewutuxazumal.pdf
- https://cdn.shopify.com/s/files/1/0431/3461/5706/files/55856042816.pdf
- https://cdn.shopify.com/s/files/1/0428/1656/9500/files/tolosifopowubamirimimu.pdf
- https://cdn.shopify.com/s/files/1/0429/2280/3363/files/wabefegetibobilozek.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007ac1.bindb5d7596e0a3ee9bd201f3724e6c10b0f554022eaa5f0633184aff3a46061bbc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7AC1 | 5296 bytes |
font_01_sfnt_off00008cd6.binc3c22a1e92b60899bb4734fff2ad078efff302783daf7874661554dbde7df46a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8CD6 | 17016 bytes |
font_02_sfnt_off0000c02c.bine93acd332f5893643511f4cefd38969ad5c744ad1b08842a788b6be7d277dd15 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC02C | 16204 bytes |
font_03_sfnt_off0000d55a.bin9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD55A | 4324 bytes |
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