MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links that point to a malicious redirector, disguised with keywords like 'area of trapezium worksheet class 8'. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM indicate that this document is part of a link farm designed to redirect users to malicious sites. The ML classifier also strongly flagged this PDF as malicious.
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.me/wix?keyword=area+of+trapezium+worksheet+class+8 In PDF document text
- http://files.movetoamendpdx.org/uploads/1/3/1/8/131857140/3969869.pdfIn PDF document text
- http://files.eatwatchgo.com/uploads/1/3/1/4/131413148/xigorokaxe-lewasovari.pdfIn PDF document text
- http://files.tilicho.fr/uploads/1/3/2/6/132681763/nikujevosuk.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/1/0433/0687/7080/files/xorufolikuvuzinekotawoxo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9426/8320/files/fesukofasimaze.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4828/7912/files/alter_ego_plus_b1_gratis.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8784/6806/files/61780908009.pdfIn PDF document text
- https://3d4160c6-00a9-4766-95ed-895f92264bbc.filesusr.com/ugd/5de1df_847bd5a7b9ba4c44987353f54c8178f6.pdf?index=trueIn PDF document text
- https://4c1c5d33-d5c5-4e71-8300-6b8feb42dba5.filesusr.com/ugd/bcb9fd_318e63ce917041d392ea3845c7e38000.pdf?index=trueIn PDF document text
- https://12bfd732-7687-4955-9476-ad647f841298.filesusr.com/ugd/dec231_ec35c81168ad4fb194681389d1a01238.pdf?index=trueIn PDF document text
- https://f9ad431b-d0bc-41a4-9534-df98e13e52b9.filesusr.com/ugd/501a20_a13a346c83ed4b48a8cb8a99ce0cdb27.pdf?index=trueIn PDF document text
- https://14c72064-8bb9-48be-8bbd-936e2405a338.filesusr.com/ugd/aff7ca_6b3ad3ccb7c7453298db97efb8950fa9.pdf?index=trueIn PDF document text
- https://a602dd6a-dff1-4289-b341-eab35cd2b447.filesusr.com/ugd/d7ba0f_cf79c0c3f5814e7fa6cca3198cbd57cd.pdf?index=trueIn PDF document text
- https://84d1550a-255b-4d30-b1cf-c174426c7e55.filesusr.com/ugd/696117_52ec98439a204ea9a5d88654fcc2da20.pdf?index=trueIn 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_off00006ab6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6AB6 | 5644 bytes |
SHA-256: 71de319fc465b46ed0ecb67b3fbe73ef1ba452e88140405a3797842d438fc50d |
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font_01_sfnt_off00007de2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7DE2 | 13240 bytes |
SHA-256: 86db73da81b23ad8ff64e2b0e051e9b887bb050c200fda5d2196d6558ac870b0 |
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font_02_sfnt_off0000a80f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA80F | 16088 bytes |
SHA-256: ccd0ea095085b9379100d4de0d13d045157d8501f46cd3db2ef5c00475687e02 |
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