MALICIOUS
242
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains multiple heuristics indicating malicious intent, including links to known malicious redirectors and a lure to copy/paste commands into a shell. The document body, though heavily obfuscated, contains URLs that are part of a link farm designed to redirect users to potentially malicious content, masquerading as a manual download. The ML classifier strongly supports the malicious verdict.
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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Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LUREDocument tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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.cc/wix?keyword=omnipage+ultimate+manual 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_7e7360412984469a97cd9c77fa8ca99b.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_04eef45f742f4f87acb1d72b3f3c0026.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_2556911f02764007aacff729e7e70393.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_6c185d7ccd894776b529c4e875233a88.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5459/5224/files/15226627706.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6654/6583/files/lands_end_trail_map.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6554/0759/files/85846690677.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6302/4542/files/26458226211.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4133/3147/files/zerovedano.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49893706483.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6790/0061/files/fekilakup.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1080/8213/files/structure_of_alcohol.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_04bc38d6629049f2a9ed1c607aa7d445.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_d959ab4ea29e44358bc3c9c5325339e3.pdfIn PDF document text
- https://static.usrfiles.com/ugd/b8c837_c85ab3223f05432a9a2388f1a977e7db.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_off000076a3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x76A3 | 4892 bytes |
SHA-256: e9434c5c655dad932f9ff1f2a543b93a48ae5ed7c5579fdbe694471d229fad9a |
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font_01_sfnt_off00008733.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8733 | 10192 bytes |
SHA-256: 94aac97b8c96b6a9c7ebe2e1e3525112d29237fad61da64a37f390728dee6fc8 |
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