MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment
T1059.001 Command and Scripting Interpreter: PowerShell
T1204.002 Malicious Link
The PDF contains a mass of external links, many of which are SEO-optimized and point to PDF files hosted on various domains, including a known malicious redirector. The primary lure appears to be 'IELTS listening test samples', directing users to `https://ttraff.ru/pify?keyword=ielts+listening+test+samples`. This suggests a phishing or scam campaign leveraging SEO techniques to distribute malicious links. No scripts were extracted, but the PDF structure itself is used for the malicious redirection.
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=ielts+listening+test+samples In PDF document text
- http://files.oatag.org/uploads/1/3/0/7/130775607/gififejavuwuza.pdfIn PDF document text
- http://files.ablepestinc.com/uploads/1/3/0/9/130969705/1637905.pdfIn PDF document text
- http://sezebebaf.rockingb5.ca/uploads/1/3/1/0/131070993/wakamazepesom-jobezomapemener-farerezapumuzi-nusaxe.pdfIn PDF document text
- http://files.soniabarneydesign.com/uploads/1/3/0/7/130775665/zoduzuwofumogilere.pdfIn PDF document text
- http://files.gsfchristianacademy.org/uploads/1/3/1/4/131409090/bilego-batijemosoresi-kajefux.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/1/0430/3237/9545/files/81421444729.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2631/7473/files/nugawujomipena.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/0496/6565/files/23942245264.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5386/6408/files/39445844077.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8558/6849/files/cyber_bullying_articles_philippines.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8801/1673/files/xuwumulebiwifivowule.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3773/6603/files/61828303724.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0350/1989/files/kufog.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7431/3621/files/vokamixaxobu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5491/4981/files/16951975923.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00009311.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9311 | 4656 bytes |
SHA-256: 1f0eb32cc356c3b8378e7bb295f0a741b8e426f532d36c4a9ac95630c064be94 |
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font_01_sfnt_off0000a2bb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xA2BB | 12404 bytes |
SHA-256: 483a3023648064c20f55d392e244c7ee9ebaa733f715a61da54a6298a6da0c3c |
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font_02_sfnt_off0000ca8f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA8F | 4324 bytes |
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333 |
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