MALICIOUS
142
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a link disguised as a download for 'heat transfer worksheets printable'. Heuristics indicate this link points to known malicious redirector infrastructure, specifically 'https://traffking.ru/123?keyword=heat+transfer+worksheets+printable'. The ML classifier also strongly flagged this PDF as malicious. While no scripts were extracted, the presence of a malicious redirector URL within the document body strongly suggests an attempt to lure the user to a malicious site.
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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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://traffking.ru/123?keyword=heat+transfer+worksheets+printable In PDF document text
- https://vozutadisifik.weebly.com/uploads/1/3/1/4/131483249/250429.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4381551/normal_5f951b094b05a.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/cadce87a-88a0-4549-be66-615f9f06a835/nanda_nursing_diagnosis_2018_fre.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/00364573-8269-43b2-aaea-02d9a3cd8a8a/65947329458.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/1d05b379-4e27-4cf2-8494-ae80d933610f/15802937953.pdfIn PDF document text
- https://nizowowe.files.wordpress.com/2020/11/midesifitir.pdfIn PDF document text
- https://s3.amazonaws.com/gogonof/electrician_tools_name_in_hindi_download.pdfIn PDF document text
- https://s3.amazonaws.com/likadojivivofu/nufubiviwi.pdfIn PDF document text
- https://s3.amazonaws.com/lulelepese/antecedentes_de_la_administracion_de_riesgos.pdfIn PDF document text
- https://tuxabavijig.files.wordpress.com/2020/11/37940387668.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7c44bc02-c6fb-48f0-87f4-f0edaa1885ac/gexefupoxobe.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/67d22f70-e4a1-48c4-bdb9-494b3d98c08e/davawuxibutowojora.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e534166f-3eb4-4ffa-a144-7396201d7839/effective_practices_in_early_childho.pdfIn PDF document text
- https://s3.amazonaws.com/welutizenop/voripudunok.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 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006a70.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6A70 | 5248 bytes |
SHA-256: f064d288f5282f083b9b6b80ed0c30064d9a55d994befc0de0e9c2b9c30db1b6 |
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font_01_sfnt_off00007c50.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7C50 | 10692 bytes |
SHA-256: 37a30727cce4e99267797b81be2ddfd20f4adf9e25322b3b2a4ea1acab1520cf |
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