MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a prominent link to 'ttraff.me', identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'Royal children's hospital guidelines bronchiolitis', suggesting a lure to trick users into clicking the malicious link. The presence of a large number of external PDF links further supports a link farm or redirection strategy. 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.me/wix?keyword=royal+children%2527+s+hospital+guidelines+bronchiolitis
- https://static.usrfiles.com/ugd/3e5d97_8f70d021f3494fb2a1fbca1b637b66db.pdf
- https://static.usrfiles.com/ugd/610d21_5de16c91a6fa442d98278d37035f75b5.pdf
- https://static.usrfiles.com/ugd/4cf28d_619bddf5ff3243dcacf4a9d7505a736b.pdf
- https://static.usrfiles.com/ugd/3c2e2e_6c81846892ce454192b7494d222bf1c7.pdf
- https://static.usrfiles.com/ugd/fac845_b3ce0a7455c14dcf89df32dbdce4379d.pdf
- https://cdn.shopify.com/s/files/1/0433/5229/3541/files/91998204608.pdf
- https://cdn.shopify.com/s/files/1/0429/2093/5590/files/jadasasemetuxodozig.pdf
- https://cdn.shopify.com/s/files/1/0430/6747/4087/files/concrete_mix_design_lab_report.pdf
- https://cdn.shopify.com/s/files/1/0447/9034/9975/files/best_pic_effects_app_for_android.pdf
- https://cdn.shopify.com/s/files/1/0461/5769/3091/files/jurnal_hernia_umbilikalis.pdf
- https://cdn.shopify.com/s/files/1/0428/5107/4204/files/best_entrepreneur_books_of_all_time.pdf
- https://static.usrfiles.com/ugd/f8de3e_dae4fb6c42b64192899091ea6478c663.pdf
- https://static.usrfiles.com/ugd/b8c837_d57a875f48484ecb9c7ba2770793a251.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_off000043b1.bin6938d907c8fd0ab58e90ee571a6ce408da7d8cccbe20c2823713c50999ae9b8e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x43B1 | 5620 bytes |
font_01_sfnt_off000056db.bin4f1846cb8db90ea32ad1bbcee29d458f98d3b62c4501599b0918726706534d89 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x56DB | 9088 bytes |
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