MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which point to benign Shopify URLs, but one critical link directs to a known malicious redirector. This suggests a tactic to disguise malicious activity within a large set of seemingly legitimate links, likely to evade detection or to appear as a legitimate resource. The ML classifier strongly supports the malicious nature of this PDF.
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=fly+sheets+for+draft+horses
- https://cdn.shopify.com/s/files/1/0431/9612/1251/files/mechanical_measurements_6th_edition_solutions_manual.pdf
- https://cdn.shopify.com/s/files/1/0435/5211/2804/files/zigekuzedeni.pdf
- https://cdn.shopify.com/s/files/1/0434/2792/2076/files/bible_study_guide_for_couples.pdf
- https://cdn.shopify.com/s/files/1/0434/4394/5628/files/jerumefen.pdf
- https://cdn.shopify.com/s/files/1/0429/5491/5993/files/24406685751.pdf
- https://cdn.shopify.com/s/files/1/0434/4145/5254/files/65171689576.pdf
- https://cdn.shopify.com/s/files/1/0427/5961/8716/files/xagawugu.pdf
- https://cdn.shopify.com/s/files/1/0463/2585/8459/files/the_economist_july_2019.pdf
- https://cdn.shopify.com/s/files/1/0432/2725/0850/files/regeroferiki.pdf
- https://static.usrfiles.com/ugd/b8c837_45a26af347bf4cd48890df87428c8328.pdf
- https://static.usrfiles.com/ugd/912de2_2752969cb00e453ca3ae5fb4ace59235.pdf
- https://static.usrfiles.com/ugd/4cf28d_861f2754d7c04dffadb4030824b826d9.pdf
- https://static.usrfiles.com/ugd/b8c837_8a5556bc64c6445db763bc5047ee6aeb.pdf
- https://static.usrfiles.com/ugd/b8c837_4f775621edb54757a96cd4dce0144ffc.pdf
- https://static.usrfiles.com/ugd/b8c837_43cdedc5c9ef437aaec158e14bc2b1c2.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/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000717a.bin4d7e82fabaa8ebea805d5f3229dbb7868914681854a6303e8568b4a6d8d54116 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x717A | 5052 bytes |
font_01_sfnt_off000082ab.binfc48482ef50cb0ccc219dcacd3f90d7f4b37d39e1cc84d439dce4ea1399ceb74 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x82AB | 10324 bytes |
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