MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file was identified as malicious due to a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it contains links to known malicious redirector infrastructure. Additionally, the PDF_SEO_LINK_FARM heuristic indicates a mass of external PDF links, suggesting a link farm designed to distribute malicious content or phish users. The primary malicious URL identified is https://ttraff.ru/pify?keyword=headway+beginner+cd. No scripts were extracted from this sample.
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=headway+beginner+cd In PDF document text
- http://jirak.pensionplanningsolutions.com/uploads/1/3/1/4/131409508/8e77eb348.pdfIn PDF document text
- http://teromufu.wlcsj.com/uploads/1/3/0/8/130814328/7816440.pdfIn PDF document text
- http://files.wfut.org/uploads/1/3/1/6/131606331/nuximolefaxune.pdfIn PDF document text
- http://rotiwo.giltnercustomer.com/uploads/1/3/0/8/130874575/998272.pdfIn PDF document text
- http://sabetudu.mizunagardens.com/uploads/1/3/0/8/130814070/6651835.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/1/0431/1659/3312/files/jumugobanokuxiveloparen.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9602/3975/files/junurapigokegogopopozavej.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2762/0249/files/juzegawoxuxazulolesim.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/3473/6797/files/82986589027.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9257/3336/files/34333858923.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0451/2183/1065/files/40773497617.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/7927/7467/files/raxinopenefegedisomo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0450/3791/2214/files/lab_safety_signs.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5219/4202/files/quantitative_aptitude_solving_tricks.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5631/7091/files/73913519534.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7687/7478/files/deniniji.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1498/7674/files/air_brake_system_troubleshooting.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8967/3888/files/chhath_video_songs_2017.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_off00006251.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6251 | 5192 bytes |
SHA-256: 8faab0a8a6a42a343dec7bb3bacf12bf4dfabe32c9dd0326342eccc72774bb5b |
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font_01_sfnt_off00007417.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7417 | 12284 bytes |
SHA-256: f31c5a834d7fd633b709a6d9b9ac64fca9d656b888a00c72bd24a21beee40308 |
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