MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a link farm and a redirector URL, indicating a phishing or scam attempt. The embedded document body text, though corrupted, contains keywords related to IELTS and a URL that is also present in the heuristics, suggesting a lure for academic-related content. The ML classifier strongly flagged this PDF as malicious, and the presence of numerous external links points to an SEO poisoning or link farm tactic.
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+writing+task+1+academic+answer+sheet+pdf In PDF document text
- http://files.wholistichelp.com/uploads/1/3/2/3/132302859/3404040.pdfIn PDF document text
- http://files.intuitivemew.ca/uploads/1/3/0/9/130969077/b02aa93.pdfIn PDF document text
- http://files.homefromhomechildcarers.co.uk/uploads/1/3/0/8/130873840/xawepoko.pdfIn PDF document text
- http://files.howardstantencoaching.com/uploads/1/3/1/8/131856433/495847.pdfIn PDF document text
- http://jujax.em2profiles.com/uploads/1/3/0/7/130739204/futudewekedi.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/1/0431/8353/8331/files/guvowejimonadeveweb.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6737/5777/files/787751245.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5540/6494/files/bepiguvatazun.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2469/4939/files/xapofa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/6665/3858/files/24531725333.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0127/3750/files/befaladosomesojajuxokef.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1708/4833/files/83900640043.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9898/1030/files/miriwo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/1161/8462/files/avenue_q_songs.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1202/1662/files/college_physics_giambattista_4th_edition.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9959/4656/files/49274607172.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/73792904944.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6074/8695/files/95790696455.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9173/9295/files/firanuruxofalududelasasev.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_off00004c5d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4C5D | 5716 bytes |
SHA-256: 2e057dc757342c4aac958efb810e3486ec025404f9858419dd3a7491090c17b2 |
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font_01_sfnt_off00005fc2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5FC2 | 14260 bytes |
SHA-256: 03921cbdfcce3afc41eb66b4dd329bbdab858c85286457e66a9a30aaaaa3ef64 |
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