MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains embedded links that lead to a redirector service, which in turn points to other potentially malicious PDF files. The document body, though heavily obfuscated, contains text related to a 'cognitive ability test' and the malicious URL, suggesting a phishing or scam lure. The presence of numerous external PDF links further indicates a link farm or redirection strategy.
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/wb?keyword=cognitive%20ability%20test%20free%20pdf
- http://xezuxuxaw.mahachimeadowsdesigns.com/uploads/1/3/1/3/131380213/0f8c8fdb2fc2b03.pdf
- http://files.ronnielane.com/uploads/1/3/1/3/131398504/wifeletag.pdf
- http://files.designbydecorum.com/uploads/1/3/0/8/130873880/96bc2.pdf
- http://xewopawe.vccburlington.org/uploads/1/3/1/6/131606289/pekagapapefomuja.pdf
- http://files.pippayoga.co.uk/uploads/1/3/0/9/130969182/3866155.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0433/7614/8638/files/kufasadisulevutupemujipak.pdf
- https://cdn.shopify.com/s/files/1/0429/6107/6387/files/34105624243.pdf
- https://cdn.shopify.com/s/files/1/0438/3866/8965/files/canon_5d_mark_iii_tutorial.pdf
- https://cdn.shopify.com/s/files/1/0435/9910/2115/files/pedifovisimajarunenesubu.pdf
- https://cdn.shopify.com/s/files/1/0437/2827/3562/files/securecrt_7._3_full.pdf
- https://cdn.shopify.com/s/files/1/0427/7898/4614/files/mixesavuponofob.pdf
- https://cdn.shopify.com/s/files/1/0428/8688/9625/files/70472623105.pdf
- https://cdn.shopify.com/s/files/1/0455/6816/4005/files/zuzovoxawi.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_off00006c3a.bin712431bfc3db10d5b357fb4a5c83c331a39e864e5ecbb7b1fb78afdf0fb6b305 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6C3A | 5416 bytes |
font_01_sfnt_off00007eb7.bin755ac77679414a477c81af008d6df7beea85350927e63faff78a17900812d832 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7EB7 | 10128 bytes |
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