MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, with the primary heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains text related to exceptions and wkhtmltopdf, suggesting it's a lure. The ML classifier strongly indicates maliciousness.
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.ru/pify?keyword=nested+exception+is+java.+lang.+numberformatexception
- http://files.buildteacherhub.org/uploads/1/3/1/4/131406505/8552289.pdf
- http://files.save4salud.com/uploads/1/3/0/8/130813458/4218209.pdf
- http://files.sdena.org/uploads/1/3/1/8/131871850/557dcb45b0610aa.pdf
- https://cdn.shopify.com/s/files/1/0429/5163/9196/files/serorolepuruxefebibuwu.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/89573664631.pdf
- https://cdn.shopify.com/s/files/1/0431/1266/1152/files/vodewotubumodagesegikatup.pdf
- https://cdn.shopify.com/s/files/1/0431/3301/0081/files/90822143383.pdf
- https://cdn.shopify.com/s/files/1/0429/1792/0934/files/nirufebadupexiwa.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/9467339244.pdf
- https://cdn.shopify.com/s/files/1/0431/2619/4342/files/varizemumekikelix.pdf
- https://cdn.shopify.com/s/files/1/0434/7147/0742/files/delalofeze.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/76106621034.pdf
- https://cdn.shopify.com/s/files/1/0434/0881/8333/files/jekibaledu.pdf
- https://cdn.shopify.com/s/files/1/0429/2991/4012/files/18458644561.pdf
- https://cdn.shopify.com/s/files/1/0429/1058/0903/files/20566230371.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_off00007faa.bin2b557b6593865da601abe3b27e963c360bf4eb606f8c32faf206508898429faf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7FAA | 5704 bytes |
font_01_sfnt_off00009310.binfb0f91d8f7d6292e0eb1d57f5e6efd382116eaa0c0f4e57d3cc82b08bffd72e2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9310 | 10564 bytes |
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