MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a mass of external links, including a critical link to a known malicious redirector at https://ttraff.com/wix?keyword=emil+and+the+detectives+book. The document body, though heavily obfuscated, contains references to the book 'Emil and the detectives' and the wkhtmltopdf tool, suggesting a lure to disguise the malicious link farm. The ML classifier strongly supports the malicious nature of this PDF.
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/wix?keyword=emil+and+the+detectives+book
- https://static.usrfiles.com/ugd/a1fb72_0499436059fa41b485c93da80476d089.pdf
- https://static.usrfiles.com/ugd/b8c837_3965226ac8f9493e9a7333be8078ceb5.pdf
- https://static.usrfiles.com/ugd/b8c837_019930949e1146b8b8b567af09af028a.pdf
- https://cdn.shopify.com/s/files/1/0432/3721/2319/files/bigenogu.pdf
- https://cdn.shopify.com/s/files/1/0433/3748/2405/files/fomivodenaraxorovan.pdf
- https://cdn.shopify.com/s/files/1/0431/7098/8188/files/xiregixomoxe.pdf
- https://cdn.shopify.com/s/files/1/0430/4555/2277/files/kupowi.pdf
- https://cdn.shopify.com/s/files/1/0430/1763/3949/files/a_travs_de_mi_ventana_2.pdf
- https://cdn.shopify.com/s/files/1/0431/0482/9589/files/65998668276.pdf
- https://cdn.shopify.com/s/files/1/0437/4124/9690/files/80649422002.pdf
- https://cdn.shopify.com/s/files/1/0431/8606/1480/files/ssc_exam_mcq_answer_sheet_2019.pdf
- https://cdn.shopify.com/s/files/1/0434/0521/3852/files/gutipidenivazol.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_off000083e9.binc8aa67c569c5a7542c70cf329c15331e813280597453970070d7b7b117992e7b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x83E9 | 5304 bytes |
font_01_sfnt_off000095c6.bine241fff3cfc738a47f0673f6fc17cb720dce69c7ecc5cc94032ecf6e7a680e90 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x95C6 | 10724 bytes |
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