MALICIOUS
194
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 pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL and text related to 'addition subtraction multiplication division worksheets for 4th grade pdf', suggesting a lure. The PDF also contains a mass external PDF link farm, with many links hosted on cdn.shopify.com, indicating a potential SEO spam campaign.
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.com/pify?keyword=addition+subtraction+multiplication+division+worksheets+for+4th+grade+pdf In PDF document text
- http://files.sojeonglee.com/uploads/1/3/2/6/132680860/sitoxetiderugap.pdfIn PDF document text
- http://files.academyofnatureandwildlifearts.org/uploads/1/3/1/8/131872054/wigepufaxub.pdfIn PDF document text
- http://files.foranbrothers.com/uploads/1/3/2/6/132680781/razebupirugi.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/1/0435/5643/8165/files/jenen.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4194/5760/files/rebazimixoni.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9614/6073/files/gapebalekapekijozi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8344/0030/files/tesimilanimowijowofekave.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/9906/0392/files/44743813745.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7446/2631/files/75368764313.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/8143/1195/files/21770747673.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7792/7072/files/rufexorakixizisavibaxus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6341/9815/files/ziterakovigo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8722/4214/files/84770444984.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8905/2316/files/58242272949.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/1595/4847/files/57966219853.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9029/7507/files/ruxitimosoribojutomexadu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4516/7008/files/golapijukojon.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_off0000ab93.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAB93 | 2828 bytes |
SHA-256: b7f317aa0f29cd34df008dc84d8f376d2685882a57a4a5cd0d86477d0adf885a |
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font_01_sfnt_off0000b58e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB58E | 6004 bytes |
SHA-256: b68cfcef0949f48436c7863a8f669d622ace55a22ba507b777a231881619189e |
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font_02_sfnt_off0000c9ed.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC9ED | 9648 bytes |
SHA-256: 20f0298c88469cfd009ac36b43462fb548652358801674e7f0ce2eda64c97f36 |
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