MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. Additionally, another critical heuristic indicates a PDF link farm, suggesting a broad distribution effort. The presence of a 'download button' lure further supports the malicious intent. The primary malicious URL identified is https://ttraff.link/wix?keyword=fundamental+counting+principle+worksheet+with+answers.
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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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.link/wix?keyword=fundamental+counting+principle+worksheet+with+answers In PDF document text
- http://galomeg.utahact.com/uploads/1/3/0/7/130740178/4106404.pdfIn PDF document text
- http://xinano.kentfong.com/uploads/1/3/1/8/131871699/bubid.pdfIn PDF document text
- http://files.tachelesstmk.org/uploads/1/3/1/3/131380094/7652265.pdfIn PDF document text
- http://nexenibat.firststatebaptist.com/uploads/1/3/1/4/131406710/9011247.pdfIn PDF document text
- http://files.pianoincolor.com/uploads/1/3/0/7/130776111/kufimopiwubazinogi.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/1/0434/4935/2349/files/multiple_skype_launcher_3._8.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2483/4975/files/ditenetafijixipem.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5823/2480/files/ethiopian_airlines_crash_investigation_report.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9702/2879/files/52042186660.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/8879/6064/files/62113780890.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5804/4827/files/juvovowotax.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0451/2520/6169/files/cbse_class_9_syllabus_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7222/5442/files/evolve_resources_for_saunders_comprehensive_review_for_the_nclex-pn_examination_7th_edition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8646/2628/files/xuvibokiposej.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_off0000aebf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAEBF | 2828 bytes |
SHA-256: a17885b4fd577e0298a64705d5055d2ac7c2363fd7008e9cf236b3df412a17d8 |
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font_01_sfnt_off0000b8b9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB8B9 | 5600 bytes |
SHA-256: 9f75db4626a6cd0c4d21fe51c790adf8613f6b17f77a8931d8d26802e5720440 |
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font_02_sfnt_off0000cbaf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCBAF | 10372 bytes |
SHA-256: 0382efef654ea1737040d2b1355a9a07e8bef452424e03c58fc1d7f6f4f57ef0 |
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