MALICIOUS
274
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 redirection and social engineering lures, specifically promoting a 'free antivirus' download. The embedded link directs to a known malicious redirector, ttraff.com, which is a common tactic for phishing and malware distribution. The document body and heuristics suggest a lure to install a browser extension or update, or to download an archive, which are common pretexts for malware delivery.
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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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.com/pify?keyword=free+antivirus+for+laptop In PDF document text
- http://files.eternalcycleworks.com/uploads/1/3/2/3/132302910/36329042d0d64.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/1/0432/9046/0324/files/technical_communication_11th_edition_mike_markel.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/0607/3759/files/surmai_fish_nutritional_information.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3441/8075/files/pizepibumusizuwesisosinug.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7417/5644/files/57477865452.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9229/5333/files/que_es_biblioteca_virtual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8648/7456/files/88136868299.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7397/9043/files/butomi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/1288/0544/files/worixusunurebadepalot.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/4154/4602/files/mavugalixerilesabezaji.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2199/1079/files/93316074264.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8226/1415/files/wosapamukogubi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9273/8201/files/davaragonomifexexi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/4287/4278/files/character_in_a_beatles_song.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_off00009fec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9FEC | 4908 bytes |
SHA-256: 662898fe20192c3ee1bd085651d51809be512c4c0bef3a48e0148de69e627cc6 |
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font_01_sfnt_off0000b0b6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB0B6 | 10024 bytes |
SHA-256: 9eca448bf6609a1572bc3aca184b48c2e7d8527a8833af88c5c061b9a70b764e |
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