MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links, many pointing to a redirector URL (https://ttraff.ru/wb?keyword=adjective%20worksheet%20pdf%20grade%206), suggesting a link farm or phishing lure. The ML classifier strongly indicates maliciousness. While no scripts were extracted, the presence of malicious redirector links and the overall structure point to a phishing or malware distribution attempt.
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.ru/wb?keyword=adjective%20worksheet%20pdf%20grade%206 In PDF document text
- http://files.belarte-ardeco.com/uploads/1/3/0/8/130814065/padutu.pdfIn PDF document text
- http://files.mschwindtphotography.com/uploads/1/3/1/6/131607005/fawibe-lavizilifak.pdfIn PDF document text
- http://files.islandscounseling.com/uploads/1/3/1/4/131409055/8e3ce1394.pdfIn PDF document text
- http://files.foxwoodequestriancenter.com/uploads/1/3/2/7/132740498/795868.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/1/0431/4107/1016/files/negamixinikumotixuvud.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5127/7726/files/widejis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5054/0964/files/misajisowozodefaludeson.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7055/3250/files/dufodugukoxatugazot.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7728/0671/files/3776221561.pdfIn PDF document text
- https://dafowamu.files.wordpress.com/2020/07/pamokifasoluzuzamedunumaw.pdfIn PDF document text
- https://sebowokulu.files.wordpress.com/2020/07/96253018996.pdfIn PDF document text
- https://datoniv.files.wordpress.com/2020/07/gibenovetojizemu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2956/9429/files/pezavukekovokozapavo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8032/7076/files/32027611349.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9866/9220/files/6507014678.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2312/3100/files/91718318771.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kuvesagapixunijibofalase.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7166/7352/files/tozezusomilibodab.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3134/7868/files/81822985379.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/test_1879eb6a-339e-4d45-a409-571cd94a4742.pdf?v=1594212285In 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_off00006c18.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6C18 | 5500 bytes |
SHA-256: 0dd7305fdc4e2aa904fe3d49dd1b0843be2e45246607b93a51595b88174b8001 |
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font_01_sfnt_off00007efa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7EFA | 9836 bytes |
SHA-256: 994a4d9ec5b1c89a5a1dedf49a483d78d3e92b572d6666a13475804110cafdc3 |
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