MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a critical heuristic firing indicating a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=windows+10+iso+image+free'. This URL is presented in a context that suggests a lure for downloading a Windows 10 ISO image. The presence of a large number of external PDF links, many pointing to benign Shopify URLs but some to unknown domains, further supports a link farm or redirection strategy. The ML classifier also strongly flagged this PDF as malicious.
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=windows+10+iso+image+free In PDF document text
- http://newiraxi.samuelpakart.com/uploads/1/3/1/4/131453247/8def6f9c7.pdfIn PDF document text
- http://files.hightechtintplus.com/uploads/1/3/2/3/132302973/47aff28564.pdfIn PDF document text
- http://xovowupe.sambaguleyart.com/uploads/1/3/2/7/132712315/kofanavazezenu.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/1/0437/6428/5601/files/automotive_repair_business_plan.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5851/1510/files/6th_grade_vocabulary_packet.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5528/4378/files/honda_hrv_2020_manual.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9181/2767/files/activity_network_diagram.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6633/6167/files/4721645547.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0462/7346/2434/files/cherry_tree_software.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6749/7884/files/lagixekisokavivupulisiv.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8649/5397/files/chillerama_2011_subtitle_indonesia.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5459/5224/files/jefubunomokuxeroja.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7937/6798/files/fox_converter.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5271/9515/files/unix_shell_script_tutorial.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_off000059ac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x59AC | 5496 bytes |
SHA-256: 7c8bc50cfcf844ae36c2dba06d4bb0d9626efd27d98737b054bf581fb4e6337d |
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font_01_sfnt_off00006c5d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6C5D | 2896 bytes |
SHA-256: 02340a4244946fd5e5b190c7e691f58cd15dad492a7383255ab998f799431cd1 |
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font_02_sfnt_off00007888.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7888 | 10148 bytes |
SHA-256: fa056cdb90fbecbfeb2338da2d94fb72e0ec4df571dd4075abfc91fc842d81f5 |
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font_03_sfnt_off00009b8b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9B8B | 16396 bytes |
SHA-256: 321c59ea334f0b0b74574b3bd1f22bdeea3b9bbf2ccfe3a2dd9e77010036b98e |
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