MALICIOUS
242
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
T1059.001 PowerShell
The PDF file contains a prominent link to 'ttraff.com' with a query parameter suggesting a lure for 'free paypal money'. This aligns with a social engineering tactic to trick users into clicking malicious links. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms that this URL points to known malicious redirector infrastructure. Additionally, the 'SE_BROWSER_INSTALL_LURE' heuristic indicates the document also attempts to trick users into installing browser extensions or updates, a common method for malware delivery or credential theft. The document body, though heavily obfuscated, contains the same lure text and the malicious URL.
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.com/wix?keyword=free+paypal+money+no+human+verificat 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/b8c837_1e0f500d713148e38461148786b0980f.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_040c7584a9a24ecc9a3cd31e372d9080.pdfIn PDF document text
- https://static.usrfiles.com/ugd/314c35_a41dc45b5e6243a9900eabc32b77c1e0.pdfIn PDF document text
- https://static.usrfiles.com/ugd/45fd81_610399383c18404aaa3fe46992b89726.pdfIn PDF document text
- https://static.usrfiles.com/ugd/08fe48_4820f370b8324b0892fbbefcfccfd050.pdfIn PDF document text
- https://static.usrfiles.com/ugd/d5415a_de35b559b16f4ce1866c72964eebfec9.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7600/1704/files/mevof.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7872/9374/files/xogudokesogigufawu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8281/7441/files/plane_analytic_geometry_formulas.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/8232/3870/files/snow_loreena_mckennitt_sheet_music.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6658/8325/files/sufagekodedalen.pdfIn PDF document text
- https://static.usrfiles.com/ugd/52b593_bc5955ee81dd43e59fca02f220fff268.pdfIn PDF document text
- https://static.usrfiles.com/ugd/4d400c_dd88d4599448488ea51cd1a8e5f5559b.pdfIn PDF document text
- https://static.usrfiles.com/ugd/4ae4db_0c455177de96484ab2f65a34010c9bb8.pdfIn PDF document text
- https://static.usrfiles.com/ugd/93c935_492c37b0ccde424aa8d6b6c26498ebd4.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_off0000751d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x751D | 5196 bytes |
SHA-256: ac2e34f1611d8edea31c241057f9a6fc58dcec9b5c49cd17c9c398dab210df62 |
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font_01_sfnt_off000086a9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x86A9 | 10844 bytes |
SHA-256: b8ebe5190f106e1824ea6fcd1d031da5b5c2f09773bfd33d7e65a7758fa140dc |
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