MALICIOUS
282
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious File
The PDF contains multiple heuristics indicating malicious redirection and a lure for browser extensions or remote support tools, disguised as a software download. The embedded URLs point to redirector infrastructure and a large number of other PDFs, suggesting a link farm or phishing campaign. The ML classifier strongly flags this PDF 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.cc/pify?keyword=foxit+reader+free++for+linux In PDF document text
- http://kolota.zarabethduell.com/uploads/1/3/1/3/131383544/xoremezijorede.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://cdn.shopify.com/s/files/1/0430/8575/8628/files/37461299627.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7542/7735/files/xanomu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2839/7732/files/sovabofebigosibojodura.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0129/0650/files/rodenubexud.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5421/0980/files/redibafonabuzi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7142/2102/files/73541391517.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1947/6896/files/97403905466.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9456/3229/files/cardiomiopatia_dilatada_veterinaria.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8601/0776/files/college_algebra_julie_miller_2nd_edition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7395/4204/files/iceland_ring_road_map.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1978/7675/files/reorder_pages_in_adobe_acrobat_pro.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_off00005aaf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5AAF | 4628 bytes |
SHA-256: 160fd049bbdfb5b0cde82d17480961cf9959d40b5b95f06e9ce2039e00234531 |
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font_01_sfnt_off00006a74.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6A74 | 10436 bytes |
SHA-256: f9c1fbdc27e0c655c9136148153ec64cf6e60e2e36bc5d0f815effd72ef4472a |
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font_02_sfnt_off00008e2f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8E2F | 4324 bytes |
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f |
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