MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
T1059.001 PowerShell
The PDF document contains numerous links, many of which point to a link farm designed to manipulate search engine results. One prominent link, 'https://ttraff.ru/wb?keyword=circular%20motion%20notes%20pdf', is identified as a malicious redirector. The document body, though heavily obfuscated, contains this same URL, suggesting the primary intent is to redirect the user to malicious infrastructure via a lure of academic content.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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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=circular%20motion%20notes%20pdf In PDF document text
- http://files.trinityreese.com/uploads/1/3/1/4/131406269/f87ed.pdfIn PDF document text
- http://files.txlpcsupervision.com/uploads/1/3/1/3/131384679/pejoloxomarum.pdfIn PDF document text
- http://lavifakip.thepaintedpalm.com/uploads/1/3/1/4/131454012/lunowusoz-binuxu-mivepapisifedag-biwurob.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8733/1481/files/liberalisme_dalam_hubungan_internasional.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/9902/7611/files/advanced_level_english_book.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/1629/7368/files/29164160464.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7328/2983/files/pojitedaligebuvu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6889/1040/files/6426223100.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1791/9912/files/57135982020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1814/1347/files/nezagejatubabi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6254/9910/files/kulesinazimivalo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/1402562920.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1077/6478/files/botw_title_key.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/1557/5464/files/80678770592.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9761/0657/files/zabix.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c120.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC120 | 5208 bytes |
SHA-256: 383319bd44700aa9ad24d42c61b307a88fac8acc6d96c727e902918d3ca3c82b |
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font_01_sfnt_off0000d2b4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD2B4 | 12324 bytes |
SHA-256: 23e3a5f03de9dba28999b922b9a6a679dce6074b19b024e1d7c36b779031577f |
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font_02_sfnt_off0000fd60.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD60 | 16064 bytes |
SHA-256: 1396562ca3b520584892f4bd50ff39b0722e014cdbc1625119a677b71e1270af |
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