MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to a known malicious redirector (ttraff.com). The document body, though heavily obfuscated, contains text related to 'fraction number line worksheets grade 4', suggesting a lure to disguise the malicious intent. The primary heuristic indicates the PDF links to known malicious redirector infrastructure.
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=fraction+number+line+worksheets+grade+4 In PDF document text
- http://files.birdhousebaby.com/uploads/1/3/0/7/130740522/siniwuluzisu_mazogal.pdfIn PDF document text
- http://rozitad.n2d.shop/uploads/1/3/1/0/131069839/ca21b60a7d.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/1/0449/7784/8488/files/xibiz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1267/0111/files/afinador_de_guitarra_apk_android_2._3.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/97897646990.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2790/6206/files/business_case_study_book.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/4340/4441/files/durasivizaxuzaledobikumap.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3745/7574/files/80334855630.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3686/8762/files/gifojur.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8364/5599/files/90820824986.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7633/8335/files/asa_guidelines_for_secondary_prevention_of_stroke.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6187/7665/files/fifodesuwulogojas.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/29878061118.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6071/4904/files/90984032347.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9724/4316/files/11419703373.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3417/1797/files/mojiw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/6549/2127/files/didupejebevigupifem.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00008ce5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8CE5 | 5692 bytes |
SHA-256: a8deafd46f149f6e5f20769afa3ce26de55215571deea83560cad3aac327c5d3 |
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font_01_sfnt_off0000a026.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA026 | 9712 bytes |
SHA-256: 744c36ecdee2253eb25184e493f302501458394c5218aa50a9d180020972ede3 |
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font_02_sfnt_off0000c1a6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC1A6 | 16116 bytes |
SHA-256: edc33fe94617b35fa5734827a91efdc9665031ac3a5a8b8018a6396f4204b3d2 |
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