MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1190 Exploit Public-Facing Application
The PDF contains a large number of embedded links, with one pointing to a known malicious redirector. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external PDF links, suggesting an attempt to manipulate search engine results or distribute further malicious content. The ML classifier also strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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/wix?keyword=there+is+and+there+are+exercises+for
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0428/3629/5836/files/free_of_telegram_x_for_android.pdf
- https://cdn.shopify.com/s/files/1/0432/8692/1374/files/lazonikawute.pdf
- https://cdn.shopify.com/s/files/1/0464/7996/6360/files/c._i._d_online_form_2018.pdf
- https://cdn.shopify.com/s/files/1/0431/6676/1120/files/76062214581.pdf
- https://static.usrfiles.com/ugd/c20ea7_976204606b6749fb96a97b64e916a469.pdf
- https://static.usrfiles.com/ugd/e2f7e1_f246b58bfce943869528b2a441789511.pdf
- https://static.usrfiles.com/ugd/05900a_8af76dc7a6f8459ca532ae7f2f38d3c0.pdf
- https://static.usrfiles.com/ugd/374ce0_cfec934b39684ec18101f84c995932dc.pdf
- https://static.usrfiles.com/ugd/23e9be_045a6d0f2fbc42c988ce1119d3866db8.pdf
- https://cdn.shopify.com/s/files/1/0432/3190/3902/files/89452550406.pdf
- https://cdn.shopify.com/s/files/1/0434/0714/7162/files/87032988877.pdf
- https://cdn.shopify.com/s/files/1/0428/5592/3878/files/king_crimson_epitaph_lyrics.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000829f.binb43f70d7e6cff809f7501e74ca13d132ebbfe0c63a334afb080d7ca275712684 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x829F | 5096 bytes |
font_01_sfnt_off000093e3.bincd0f6fb5f0823c90d55124a876d771495c991b3ff5f772312d1bb7e349aa24c9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x93E3 | 10120 bytes |
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