MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document contains a large number of embedded links, many of which point to external resources. One critical heuristic identified a link to known malicious redirector infrastructure at https://ttraff.ru/wb?keyword=adobe%20cutepdf%20printer%20free%20download. The document body, though heavily obfuscated, also contains this URL, suggesting it is the primary lure. The presence of numerous other PDF links indicates a link farm strategy to obscure the malicious destination.
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=adobe%20cutepdf%20printer%20free%20download In PDF document text
- http://files.cateringandcreations.net/uploads/1/3/0/8/130814513/9295549.pdfIn PDF document text
- http://files.glyncor.com/uploads/1/3/1/4/131409508/71ac6f0d48e71.pdfIn PDF document text
- http://files.hallingburychurches.co.uk/uploads/1/3/1/4/131409385/2468126.pdfIn PDF document text
- http://files.mtnspinweave.org/uploads/1/3/0/7/130739419/247dba6ea7e70ce.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://kusujeseb640712054.files.wordpress.com/2020/07/segigefagugobegunalujazop.pdfIn PDF document text
- https://koxebitiz.files.wordpress.com/2020/06/pebedajisimumugeworof.pdfIn PDF document text
- https://jejemapep.files.wordpress.com/2020/06/44496357400.pdfIn PDF document text
- https://livasif.files.wordpress.com/2020/07/97269778596.pdfIn PDF document text
- https://kejijewuna.files.wordpress.com/2020/06/27339876553.pdfIn PDF document text
- https://zuxipume.files.wordpress.com/2020/07/suxasexifavufaj.pdfIn PDF document text
- https://gelixoju890089821.files.wordpress.com/2020/06/dabobamunativ.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9903/7595/files/62882247471.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9853/0202/files/61099850379.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3446/0828/files/digalitiradunefa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/72710717911.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2230/2888/files/22720869644.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kurejala.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0151/2090/files/girivima.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/4195/6775/files/28975738324.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9000/9509/files/64627935806.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
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00006f00.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6F00 | 5076 bytes |
SHA-256: 97fbd846c994aeb6d2cfd7d32fcc60be1e5ee90edde28637328bde3d07f87372 |
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font_01_sfnt_off0000805a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x805A | 10188 bytes |
SHA-256: dfafa338b41b50754091fdbed4a48f2f85879f82167f3ed75932a00adae6882e |
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