MALICIOUS
282
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 User Execution: Malicious File
T1059.001 PowerShell
This PDF document contains a link farm and a malicious redirector, indicating a social engineering attempt. The document lures the user with a 'Click here to download' phrase and a browser extension installation lure, likely to trick them into visiting the malicious URL. The primary malicious URL identified is https://ttraff.ru/pify?keyword=pdf+to+word+converter+free+zamzar, which redirects to other benign Shopify links, but the initial redirector is flagged as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 8
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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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Remote-support tool lure high SE_REMOTE_SUPPORT_LUREDocument instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
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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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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.ru/pify?keyword=pdf+to+word+converter+free+zamzar In PDF document text
- http://files.bluebonnetchapter.com/uploads/1/3/1/3/131378950/fexebuxo.pdfIn PDF document text
- http://files.countryintheuk.com/uploads/1/3/1/3/131398461/a9eab4ddcb4fb.pdfIn PDF document text
- http://files.marioncountymastergardeners.com/uploads/1/3/1/3/131383771/3cfe1a45ceb7cdc.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/1/0431/5286/7494/files/14469478548.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4423/9510/files/63304022227.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1856/7335/files/18347670881.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0923/6374/files/sovuwokituforoxek.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7054/6329/files/subnautica_recharge_battery.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1407/9143/files/41196203121.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2216/3876/files/zowatemiludizupadufe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/0925/9158/files/agritourism_in_the_philippines.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8288/4006/files/sozojejiwovoverodemafodon.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5316/1367/files/6607846072.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3170/8316/files/wexotelagubazovitomo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2359/6693/files/gopuw.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_off000078ec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x78EC | 5160 bytes |
SHA-256: 3993e337418b0e2a206c23faf45556c985af7f7621f35e7af22c1761603b2109 |
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font_01_sfnt_off00008a84.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8A84 | 9964 bytes |
SHA-256: 228b9cdce67e55f20a53f5af1c0c37c5c816c57a9bf3ec8185eaf81bd0484e5c |
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