MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
T1059.001 Command and Scripting Interpreter: PowerShell
The PDF contains a link to a known malicious redirector, ttraff.cc, which is likely used to funnel victims to malicious sites. The document body, though heavily obfuscated, contains the same URL and appears to be a lure related to a 'radioactivity half life worksheet'. The presence of numerous external links, many pointing to Shopify-hosted PDFs, suggests a link farm or SEO poisoning tactic to increase visibility of the malicious link. No scripts were extracted, but the primary attack vector is the embedded malicious URL.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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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/wb?keyword=radioactivity%20half%20life%20worksheet In PDF document text
- http://files.roejendradesigns.com/uploads/1/3/1/4/131406182/pixudekabaz.pdfIn PDF document text
- http://files.spencercountygop.com/uploads/1/3/1/3/131382092/1cd6548.pdfIn PDF document text
- http://files.chateaumae.com/uploads/1/3/0/7/130776225/f10185e926945.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/1/0431/3333/7768/files/76949380453.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8844/5591/files/glencoe_algebra_2_chapter_4_answer_key.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/5816/5925/files/46234927794.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mutiga.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4228/3432/files/22185319822.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/3503/1712/files/zewavizomezixo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0649/2823/files/pevapapiluwejemukoxigu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7314/2935/files/tujokowakerasogemejox.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/2388/2664/files/walaponorinofo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6463/1189/files/81197109191.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2476/1507/files/rubivip.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4166/8770/files/kutobaparij.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_off0000600a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x600A | 5116 bytes |
SHA-256: 533d56c029c2a8a38cd79a0b97d841cf00e0ee22f8acd9e35756dfe70bd04768 |
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font_01_sfnt_off000071a4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x71A4 | 14100 bytes |
SHA-256: 72a36379c2592a38313c231d10eb3add1fd5698894a3ea33726c3c1fdb3aa6f0 |
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font_02_sfnt_off00009e42.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9E42 | 4324 bytes |
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34 |
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