MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF file contains a mass external PDF link farm, with one prominent link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=piano+notes+cheat+sheet', which is also flagged by heuristics as a malicious redirector. This suggests the document is designed to trick users into clicking the link under the guise of accessing a cheat sheet, leading them to malicious infrastructure.
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=piano+notes+cheat+sheet In PDF document text
- http://gored.allensonarmory.com/uploads/1/3/2/6/132682233/1268394.pdfIn PDF document text
- http://files.paulinedodd.com/uploads/1/3/0/7/130775021/sonokorap-vitugefufike-zezeko-wuviwe.pdfIn PDF document text
- http://kejolagiw.philadelphiaeritreanchurch.com/uploads/1/3/0/7/130739935/ef19a481a1f5bb7.pdfIn PDF document text
- http://files.lovingthestart.com/uploads/1/3/2/7/132712093/509171.pdfIn PDF document text
- http://files.iboc.com.au/uploads/1/3/2/7/132740701/xonexo.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/1/0429/6769/5523/files/kokidatuzapeloxezokusokug.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/2843/8427/files/kibedaxib.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0450/0937/1286/files/libro_cabala_para_principiantes.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7320/7446/files/asap_mob_lord_never_worry.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7567/4012/files/25536063759.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6997/1363/files/85348439097.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8976/5279/files/samabutikoto.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0449/2158/5831/files/general_wave_equation.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tinoled.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_off000086ab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x86AB | 4760 bytes |
SHA-256: 7da22b35ec9b7eac198ba0295574023e82dbc8401769a4fcc3a9ea7597c59a24 |
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font_01_sfnt_off000096d3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x96D3 | 10076 bytes |
SHA-256: 34f40cdc878457e273eb374aa44da9d5723d7d7cda2d3aff387cdbac5249525f |
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font_02_sfnt_off0000b981.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB981 | 16180 bytes |
SHA-256: aab6463beb1dfb937ca1f77048b48cd85c073455dbfda49ee6805ceef6b5ca33 |
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