MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 User Execution: Malicious Link
T1059.001 PowerShell
The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL identified is https://ttraff.com/pify?keyword=ubuntu+repo+list, which is part of a link farm hosted on Shopify. The document body, though heavily obfuscated, contains references to 'Ubuntu repo list' and appears to be generated by wkhtmltopdf, suggesting a lure to trick users into downloading or accessing malicious content. No scripts were extracted, but the presence of numerous links and the redirector heuristic strongly indicate a phishing or malware distribution attempt.
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=ubuntu+repo+list
- http://files.charhdof.com/uploads/1/3/2/6/132681317/4727078.pdf
- http://files.ceresdiary.co.uk/uploads/1/3/0/7/130739039/kezivunejafot.pdf
- http://files.michelandcotrading.com/uploads/1/3/2/6/132695200/1345366.pdf
- https://cdn.shopify.com/s/files/1/0428/1312/8863/files/savujoxojibosalazuzatov.pdf
- https://cdn.shopify.com/s/files/1/0428/8148/2919/files/78430976609.pdf
- https://cdn.shopify.com/s/files/1/0431/4179/1895/files/93903507823.pdf
- https://cdn.shopify.com/s/files/1/0438/4794/2294/files/xesireli.pdf
- https://cdn.shopify.com/s/files/1/0432/5516/9182/files/xeselewofav.pdf
- https://cdn.shopify.com/s/files/1/0431/4152/9754/files/79496024978.pdf
- https://cdn.shopify.com/s/files/1/0430/8228/5216/files/77238628899.pdf
- https://cdn.shopify.com/s/files/1/0436/1093/1358/files/17554726972.pdf
- https://cdn.shopify.com/s/files/1/0431/4464/2715/files/61514868371.pdf
- https://cdn.shopify.com/s/files/1/0437/7726/1729/files/bawokozekumex.pdf
- https://cdn.shopify.com/s/files/1/0428/9655/6191/files/51585776817.pdf
- https://cdn.shopify.com/s/files/1/0435/9448/1823/files/miwil.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_off00005d47.binf720be7c9f1332d1539b0ed76178557d2e5e6834d67a233922901961b15f5874 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5D47 | 4732 bytes |
font_01_sfnt_off00006d6b.bin0cc469668d2010b70e5c7b1511e725d844583fe8f043a8c75645189f657b56e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D6B | 10772 bytes |
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