MALICIOUS
242
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting it's designed to lead users to malicious sites. The presence of a 'download button' lure and a remote-support tool lure further supports a phishing or malware distribution attack pattern. The embedded URL points to a known malicious redirector, likely used to obscure the final destination.
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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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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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=asme+section+viii+division+2+part+5+pdf In PDF document text
- http://files.galvayouth.com/uploads/1/3/1/4/131407539/846336.pdfIn PDF document text
- http://files.palmerhaasch.com/uploads/1/3/1/1/131163836/7159877.pdfIn PDF document text
- http://files.bigstepmissions.org/uploads/1/3/1/1/131164425/abc001a6.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/1/0431/0538/6657/files/marufegikasugaxoxebeb.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7142/2102/files/mike_in_brazil_porn.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0451/4558/7877/files/download_os_x_10._11._4.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/9680354999.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6680/9765/files/44622942656.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2265/4362/files/fugedokub.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0342/8510/files/kukemisupuk.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3308/4575/files/kotesususafizavolamu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8266/9461/files/bajika.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6357/4682/files/how_to_install_packages_in_r.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9147/6133/files/bavukupetat.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0128/1701/files/64129389076.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_off000084f7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x84F7 | 5572 bytes |
SHA-256: 7f93e2b32261bcceda071bc05af8c706413b21334feb2f16fd93e8e3a5195bf2 |
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font_01_sfnt_off000097e8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x97E8 | 14196 bytes |
SHA-256: 029dd8588eb83b71bdd155ea78167ba2d50bd8348872d39862401a27fe03eb20 |
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