MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links, with a primary link identified as a malicious redirector. The document body, though heavily obfuscated, contains the malicious URL and appears to be a lure for free downloads, a common tactic for phishing or malware distribution. The ML classifier strongly indicated maliciousness, and the presence of a redirector link reinforces this assessment.
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/pify?keyword=concerto+di+aranjuez+spartito+per+chitarra+pdf In PDF document text
- http://files.mchsapchemistry.com/uploads/1/3/1/4/131406234/vopikexatemixox.pdfIn PDF document text
- http://files.drenner.net/uploads/1/3/1/4/131453065/28835.pdfIn PDF document text
- http://files.crazydaisymarketing.com/uploads/1/3/1/4/131407918/2752167.pdfIn PDF document text
- http://fazabikif.levelten.shop/uploads/1/3/2/3/132303382/xifolavabo.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0431/1705/2053/files/turning_back_the_clock_umberto_eco.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4852/6246/files/zagubo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tujekozovazufurujujazer.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/3789/1477/files/woc_pneumonia_pada_anak.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/5567/5542/files/xoxegufaf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/5553/8591/files/case_study_method.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7925/4694/files/54208576438.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2931/5229/files/kubed.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9472/1187/files/komag.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/4329/9234/files/rabinegojuwegebasupitabi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7929/5385/files/67938840678.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5857/7046/files/dujotugizapol.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/15125842299.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5545/6164/files/62816105492.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004f2c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4F2C | 5240 bytes |
SHA-256: c027a48f3e47446a4f14dda0a71c81ec1531e94c98a9b5420b3caf66c95c90cb |
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font_01_sfnt_off00006101.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6101 | 10644 bytes |
SHA-256: 268e9c1d84e098d54f83f655b935fe2ecd3a09939d12b8cb996de0721e360632 |
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font_02_sfnt_off0000846c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x846C | 4324 bytes |
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3 |
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