MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains embedded links that are part of a link farm, with one critical link identified as a malicious redirector. The document body, though heavily obfuscated, contains text suggesting a lure related to 'dinosaur train colouring sheets' and includes the malicious URL. The ML classifier strongly flagged this PDF as malicious, indicating a high likelihood 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.com/pify?keyword=dinosaur+train+colouring+sheets
- http://xarakuxi.aandgcleaningdc.com/uploads/1/3/0/7/130776738/267355.pdf
- http://files.marcellamar.com/uploads/1/3/2/7/132710704/8492976.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0432/2007/4663/files/brinell_hardness_test_theory.pdf
- https://cdn.shopify.com/s/files/1/0437/7437/8142/files/luwexapawinerurovezegalu.pdf
- https://cdn.shopify.com/s/files/1/0437/0392/6938/files/36778136275.pdf
- https://cdn.shopify.com/s/files/1/0434/1448/7190/files/10568302156.pdf
- https://cdn.shopify.com/s/files/1/0434/6842/3334/files/bacteria_reproduction.pdf
- https://cdn.shopify.com/s/files/1/0447/9765/7248/files/osrs_pray_calc.pdf
- https://cdn.shopify.com/s/files/1/0435/3264/8602/files/22459556404.pdf
- https://cdn.shopify.com/s/files/1/0431/6564/7012/files/robipegegujozibutawor.pdf
- https://cdn.shopify.com/s/files/1/0431/8609/4241/files/levowabidebulabagazus.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_off00004d72.binb3a0e7a2134dbdd9190d190d0dc84b26a875f6dbc780b303745d73797f4bbdd2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4D72 | 5060 bytes |
font_01_sfnt_off00005e9f.binfe12cea781fdd4f2bc20df8497611b5f6920b9a3d90427290fb89d46d91de8c8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5E9F | 10144 bytes |
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