MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a link farm designed to redirect users to malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM heuristics. The document body, though heavily obfuscated, contains the URL that triggers the redirector. The primary malicious URL identified is https://ttraff.ru/pify?keyword=i+stand+all+amazed+violin+sheet+music, which is likely used to deliver a secondary payload.
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=i+stand+all+amazed+violin+sheet+music In PDF document text
- http://files.herdreamherdoctorate.com/uploads/1/3/1/3/131398360/semosonozifo.pdfIn PDF document text
- http://files.myentouragemusic.com/uploads/1/3/0/8/130814466/perepaluwo_zaxepokomoju_maxelaraka_kuradoj.pdfIn PDF document text
- http://files.darlingtonlecture.org.uk/uploads/1/3/1/4/131453213/pamarefizo.pdfIn PDF document text
- http://files.newhorizonstextilegroup.com/uploads/1/3/2/3/132303035/6811210.pdfIn PDF document text
- http://nerax.aimeekalmus.com/uploads/1/3/1/3/131379732/9920681.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/1/0433/7706/6140/files/the_theoretical_minimum.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4748/3552/files/briquettes_mobile_al_menu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9173/8277/files/3471642364.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6810/4602/files/16271038975.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2132/0870/files/71359898339.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vuvitew.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5516/9182/files/98653401689.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/51108684678.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6469/6732/files/adventure_time_season_4.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4555/2290/files/babemimew.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0446/3493/1363/files/paruxekuf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5843/8039/files/fusionner_deux_pdf_avec_adobe_acrobat_pro.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4101/4438/files/xagibotifogi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/7577/8198/files/averages_from_frequency_tables.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_off00005981.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5981 | 5128 bytes |
SHA-256: 42c94d137f4fefa70c897e15037c2b4f1e4d7bdd6c90770b510f5a1bdc044399 |
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font_01_sfnt_off00006ace.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6ACE | 10736 bytes |
SHA-256: f5f6c75c15b3efcb082f8ec2dd30f1ceaba6447c020691be952850977c273227 |
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