MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing indicating a malicious redirector link, specifically 'https://ttraff.ru/pify?keyword=for+the+first+time+piano+sheet+music+pdf'. This link is likely part of a phishing or malware distribution scheme. The document also exhibits characteristics of a PDF SEO link farm, with numerous embedded links pointing to various PDF files, many hosted on Shopify. The ML classifier strongly supports the malicious verdict.
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=for+the+first+time+piano+sheet+music+pdf In PDF document text
- http://files.ghvmsband.org/uploads/1/3/0/7/130775518/ebe25b12d46.pdfIn PDF document text
- http://files.antonybolante.com/uploads/1/3/0/7/130776644/7945403.pdfIn PDF document text
- http://varosub.thinkdifferentgomez.com/uploads/1/3/0/7/130776445/606969.pdfIn PDF document text
- http://files.modernhomebuyers.us/uploads/1/3/0/7/130738524/3024126.pdfIn PDF document text
- http://dujanogog.islandcitypublishing.com/uploads/1/3/1/6/131606490/tukokesidozuzuxit.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/1/0434/7189/6736/files/essential_grammar_in_use_supplementary_exercises_fourth_edition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5395/6758/files/35378773692.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6963/5746/files/50779075333.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6089/4627/files/12035215518.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2216/3876/files/mipibefuje.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9413/8277/files/bukoludozowunipuranojedup.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/1586/2434/files/minecraft_puzzle_maps_3_player.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8921/6163/files/40460541404.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9037/8909/files/vexevexixed.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/2690/6264/files/gisugozazozogotegoka.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3905/5253/files/lirotusesevobatizelodiwin.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00007399.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7399 | 5200 bytes |
SHA-256: cd0d1e75fcec8eb538958cc2ef7fa540ec297f094eb3dcf5f8d2fc481298f664 |
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font_01_sfnt_off0000851d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x851D | 9860 bytes |
SHA-256: 40e3ab0bcac36e542f94ca6dbe7bababdb7a3ee586d2809e54e1ff9d77b7ea55 |
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font_02_sfnt_off0000a71a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA71A | 16100 bytes |
SHA-256: d973db94ba2c448c661c26f08d051ac794e7cb4f3c7daa33c2141e8036f071b6 |
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font_03_sfnt_off0000bbe8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBBE8 | 4324 bytes |
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e |
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