MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a link that redirects to a known malicious URL, disguised as a "pen and ink drawing guide pdf download". The heuristic PDF_MALICIOUS_REDIRECTOR_LINK confirms this malicious redirector. Additionally, the PDF_SEO_LINK_FARM heuristic indicates the presence of numerous external links, suggesting a link farm or SEO poisoning tactic. No scripts were extracted, but the embedded link is the primary indicator of malicious intent.
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.cc/wix?keyword=pen+and+ink+drawing+a+simple+guide+pdf+download
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/7c3584_6ef5ed33e31b4da08025e0404dfc8726.pdf
- https://static.usrfiles.com/ugd/52b593_862340ed77ca41a1a28761dfcd067ac4.pdf
- https://static.usrfiles.com/ugd/a91264_98a1dd13abf349d38887804dd4d0772b.pdf
- https://static.usrfiles.com/ugd/b8c837_99708c189bd14f61846832929278c864.pdf
- https://static.usrfiles.com/ugd/98e298_24d3ee9e4628495b838af1501508026e.pdf
- https://static.usrfiles.com/ugd/b8c837_6be614b22c3548e18788740c7ce0d049.pdf
- https://static.usrfiles.com/ugd/8ba634_9108e023a3f543aca00cf5273a412f12.pdf
- https://static.usrfiles.com/ugd/4725f1_8a5932a903a54bc389eeac2b1f783ba2.pdf
- https://static.usrfiles.com/ugd/3b7182_c6dd0f963470421dbcc1f021ccd947b9.pdf
- https://cdn.shopify.com/s/files/1/0437/5887/8872/files/15011879443.pdf
- https://cdn.shopify.com/s/files/1/0465/1266/8830/files/everwing_unlimited_trophies.pdf
- https://cdn.shopify.com/s/files/1/0464/6885/8024/files/dokipufogum.pdf
- https://cdn.shopify.com/s/files/1/0440/7777/7061/files/3994402325.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_off000042eb.bin88b82ba631bbcda43b11c415d7fc90dc9ab67ddef17af47785dbf2a1b8ec6c8f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x42EB | 5516 bytes |
font_01_sfnt_off000055b1.binadf7312122c11219d9418d0eb9d165f61856e60e5c229e40c31b6b4a62f8206b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x55B1 | 9512 bytes |
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