MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link to a redirector service, which is a common tactic for distributing malware or leading users to phishing sites. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms this behavior. The document body, though heavily obfuscated, contains text related to 'electrical engineering books pdf free download sites', suggesting a lure to trick users into clicking the malicious link.
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=electrical+engineering+books+pdf+free+download+sites
- http://files.benmarshallwriter.com/uploads/1/3/2/3/132302892/6427534.pdf
- http://files.lengbeau.com/uploads/1/3/2/7/132740445/sojobeguxijizaluv.pdf
- http://files.tatendadalu.com/uploads/1/3/1/8/131856917/vozisobarudoratav.pdf
- http://files.beautyblissbylisa.com/uploads/1/3/1/4/131438869/pifupititojewe.pdf
- http://files.beautyblissb
- https://cdn.shopify.com/s/files/1/0432/8154/7424/files/67816839980.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fadanamimurusekebunom.pdf
- https://cdn.shopify.com/s/files/1/0439/3854/5819/files/novusilefefadepivul.pdf
- https://cdn.shopify.com/s/files/1/0433/4757/4949/files/21939432098.pdf
- https://cdn.shopify.com/s/files/1/0434/7949/8917/files/86805348379.pdf
- https://cdn.shopify.com/s/files/1/0435/3123/9588/files/tetumaxokuxoxox.pdf
- https://cdn.shopify.com/s/files/1/0431/3127/3365/files/27596942227.pdf
- https://cdn.shopify.com/s/files/1/0435/4162/7029/files/92620628084.pdf
- https://cdn.shopify.com/s/files/1/0439/9860/9566/files/rubufipepewafafaki.pdf
- https://cdn.shopify.com/s/files/1/0431/8222/7617/files/62752620729.pdf
- https://cdn.shopify.com/s/files/1/0435/0499/2408/files/30233581654.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_off0000b715.bina69e87e7181bd6c4f141ba8e3baea900390f3bd8f3590e398133aaeb6b91ecab |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB715 | 5364 bytes |
font_01_sfnt_off0000c960.bine179f0263c43a13b1ac028984de2b4d15315daaf8690d438be053d0b78174fe2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC960 | 10904 bytes |
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