Malware Insights
The PDF file contains a heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=windows+command+line+cheat+sheet'. Additionally, it exhibits characteristics of a PDF SEO link farm, with numerous embedded links to PDF files hosted on Shopify. The document body, though heavily obfuscated, contains text that, combined with the 'SE_CLIPBOARD_COMMAND_LURE' heuristic, suggests the user is instructed to copy and paste content into a command-line interface. This points to an attack pattern where the user is tricked into executing commands, likely to download and run a secondary payload.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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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.ru/pify?keyword=windows+command+line+cheat+sheet In PDF document text
- http://files.nokillhuntsville.com/uploads/1/3/1/4/131455883/jalupi.pdfIn PDF document text
- http://files.daedreamnh.org/uploads/1/3/2/6/132680986/xizarovi.pdfIn PDF document text
- http://files.e67agency.com/uploads/1/3/1/8/131871778/b60f71cdf4cd.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7372/3800/files/watobubam.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2029/6090/files/totodimiwekosisifizomor.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/2180/1371/files/kwikset_smartcode_909.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1470/1735/files/30525935504.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7011/2423/files/defulibupezozega.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/4686/8891/files/13118280399.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/4392/8726/files/91265471626.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2632/5402/files/ladisoropom.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8153/9483/files/roxaxurujaw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6424/5922/files/wejiz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6868/5464/files/75710037246.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6577/8080/files/84395891472.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_off00006104.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6104 | 5188 bytes |
SHA-256: 5e1ea5303a82d5971d18751e613c3d1ac4f385f83fcc98d85ba4f9bd4b49e020 |
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font_01_sfnt_off00007294.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7294 | 14940 bytes |
SHA-256: 1d5f981174d2625ceac470a051a316993f207f3446f08f0f8067404d6119f2a1 |
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