MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link to a known malicious redirector, ttraff.club, which is disguised as a search for "Cummins engine spec sheets". The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms this, and the ML classifier also flagged the document as malicious. The document body is heavily obfuscated, but the embedded URL is clearly visible and points to a malicious domain. The PDF also contains a link farm, suggesting a broader SEO poisoning or spamming campaign.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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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/wix?keyword=cummins+engine+spec+sheets In PDF document text
- http://files.commonscience.net/uploads/1/3/1/6/131606046/6ce1720.pdfIn PDF document text
- http://files.freedstournament.com/uploads/1/3/1/3/131384208/witinasada.pdfIn PDF document text
- http://files.jvsfinearts.com/uploads/1/3/1/0/131069763/85b76.pdfIn PDF document text
- http://files.theartexchange.ca/uploads/1/3/0/8/130813378/dasux.pdfIn PDF document text
- http://dusada.vacationsbycarla.com/uploads/1/3/1/4/131483337/sutal_lajerobudukak_zasola.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://static.usrfiles.com/ugd/d3758e_02f9440e7f02462ba3315a7283b91e8f.pdfIn PDF document text
- https://static.usrfiles.com/ugd/6203b9_0f1558eefa244a9bb34529c78892a819.pdfIn PDF document text
- https://static.usrfiles.com/ugd/26481d_e57bd420b32f4bc3992000fd0dc21b4a.pdfIn PDF document text
- https://static.usrfiles.com/ugd/9df9d6_445c32c95d834d819c8d514dbd7cdab9.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7776/3226/files/5614398223.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0461/8318/6585/files/cationic_dyeable_polyester.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6285/2773/files/daniwuvedotumabasonexevok.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6633/6166/files/wafizexi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5770/8185/files/posevukagadagudo.pdfIn PDF document text
- https://static.usrfiles.com/ugd/65e777_d2758e579cc844e08714ac5491b3d766.pdfIn PDF document text
- https://static.usrfiles.com/ugd/20d83a_4e32c58268254a428999271b5215edf3.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_9021e0a4d19a420d9e7f540be05bb835.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006565.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6565 | 4804 bytes |
SHA-256: 67a6a23c97635e561804557977f8c3f75bbd7f60fb40cd88ef51b3fdfb948913 |
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font_01_sfnt_off0000759a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x759A | 14984 bytes |
SHA-256: dbe679bb2d0622bfc1d63a15fafab2d6993e155c9f5c789e4ead9dc269997c7b |
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font_02_sfnt_off0000a43d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA43D | 4324 bytes |
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3 |
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