MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a prominent link that masquerades as a download for IELTS listening test materials. This link redirects to a known malicious redirector, ttraff.ru, which is designed to lead users to further malicious content. The PDF also contains a large number of embedded links, many pointing to Shopify domains, suggesting a link farm or SEO manipulation tactic to distribute the malicious URL. The presence of a visual download button heuristic further supports the lure-based attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
-
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.
-
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.
-
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.
-
Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
-
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.
-
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+sample+test+pdf In PDF document text
- http://files.strongerdaybyday.com/uploads/1/3/1/6/131606335/tudawow.pdfIn PDF document text
- http://jukumovig.backcountryexplorers.com/uploads/1/3/2/3/132303382/nupakukeveg.pdfIn PDF document text
- http://files.smwvumc.com/uploads/1/3/1/4/131437513/9991759.pdfIn PDF document text
- http://vikabezo.ashleyssweetchips.com/uploads/1/3/2/6/132695663/rolumukukowevosute.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/1/0437/2951/8746/files/64246377103.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/8665/8213/files/bexokijarusedajugamozoxa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0215/0557/files/jatunoxokufiloxijukupide.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0448/5827/8050/files/knee_stretches.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/97253363073.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7618/2426/files/bsc_1st_year_zoology_syllabus_2020_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7494/5184/files/wofixujepiralirupupilipud.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0657/4240/files/tabasurukuzoze.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/3197/8403/files/burgreens_menu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7729/6543/files/30796611073.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6334/4294/files/big_ideas_math_algebra_1_california_edition.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_off0000621a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x621A | 5204 bytes |
SHA-256: fbbc4488ef6982f6804b876b182cf7b6083601e665f8930b91f30bf26e67347b |
|||
font_01_sfnt_off000073bb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x73BB | 10404 bytes |
SHA-256: ea69f37b4277a152d7291741663cb808be5c81f9c063baf56bf8e8a2ce2d4aba |
|||
Open this report in the interactive analyzer, or submit your own file for analysis.