MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
T1059.001 PowerShell
The PDF file contains a social engineering lure, instructing the user to install a browser extension or viewer to access content. It embeds numerous links, including a critical redirector link to 'ttraff.cc', which is known malicious infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=chrome+plugins+chromium+pdf+viewer', indicating a redirection attempt to a malicious site, likely to deliver malware or phish for credentials.
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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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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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=chrome+plugins+chromium+pdf+viewer In PDF document text
- http://files.winslowschoolofmusic.com/uploads/1/3/0/7/130776110/9942009.pdfIn PDF document text
- http://files.fourpointsinc.org/uploads/1/3/1/3/131379591/bisexej_dugepubig_vovarigenata_jusutarijebupol.pdfIn PDF document text
- http://files.danswell.org/uploads/1/3/0/8/130813612/xefidaton_gixenitanoz_bafigofuner.pdfIn PDF document text
- http://files.angeloflove.net/uploads/1/3/0/7/130739353/7fbdae.pdfIn PDF document text
- http://files.medicinewheelrecovery.org/uploads/1/3/1/4/131407493/wolojejasi.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/1/0434/7245/3797/files/sibefurejawatunisagixas.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6181/4172/files/91807641722.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3755/6899/files/55646978524.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5222/1091/files/35843710847.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0595/2671/files/58734136758.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bagubiginapir.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7658/2552/files/75893931458.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/1910/7480/files/levolexe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8249/7701/files/wofakedijatokesopis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7100/5082/files/runurogukanetib.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/4834/3464/files/apprendre_la_conjugaison_anglaise.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1121/1425/files/63665901949.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_off000178ca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x178CA | 5416 bytes |
SHA-256: f84d8b0fe8681a1056cf2810db3e709833d7a1bd6e357a1269c43bc0f7f8641c |
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font_01_sfnt_off00018b27.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18B27 | 10908 bytes |
SHA-256: 81a68633da641c505cc3b399d73e535317c194f9823da29f4cb17ad9d07d51e8 |
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