MALICIOUS
242
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a critical heuristic indicating it links to known malicious redirector infrastructure, specifically 'ttraff.club'. The document body, though heavily obfuscated, contains the URL 'https://ttraff.club/pify?keyword=sonicwall+soho+250+datasheet', suggesting a lure related to a Sonicwall datasheet. Another critical heuristic flags the PDF as a link farm, with numerous external links, many pointing to 'static.usrfiles.com'. The 'SE_BROWSER_INSTALL_LURE' heuristic further suggests the intent is to trick the user into installing something, likely malicious, by posing as a required update or extension.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 7
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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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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.club/pify?keyword=sonicwall+soho+250+datasheet In PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://static.usrfiles.com/ugd/6846fe_06b6c18e2e384eae8703d9c34eb62432.pdfIn PDF document text
- https://static.usrfiles.com/ugd/0a51c1_059ae9730cbc448b80ab7c4402edf834.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b0b521_a70d4009684a4ca08c93678322b49ea1.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8bbd7_7db9762e0930471387cef13392d64fd2.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_0eb3a93c1f1a424090ce6f63b8e968f0.pdfIn PDF document text
- https://static.usrfiles.com/ugd/740d8c_66008ac517d4443f8211ab934e5b8e21.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b916f4_ccf6cb06223044a989aaca08b54218b4.pdfIn PDF document text
- https://static.usrfiles.com/ugd/8d46c2_715148aacf7d45918efa1853bc0af145.pdfIn PDF document text
- https://static.usrfiles.com/ugd/3c2969_941f948b37514e388707cb3244c7857f.pdfIn PDF document text
- https://static.usrfiles.com/ugd/e8e253_824ea5290e5a460a92d440a0a49d4e68.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_1f3280a7840346168bfa1539943b65ec.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2702/1480/files/87384843401.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0449/7804/5086/files/reading_comprehension_worksheets_with_answers.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/4691/0617/files/2267442391.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4398/6327/files/xadabaw.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e039.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE039 | 5524 bytes |
SHA-256: 998bc3f620ca4bcca885551d4f8a069a56a10d7d240bb481ccefba0ab6a76313 |
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font_01_sfnt_off0000f31c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF31C | 15784 bytes |
SHA-256: bd243f31afefc07e5379eae7ea4300a4beadea8d9e8c2214629d08cab0af14a6 |
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