MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains numerous embedded links, with a critical heuristic identifying a malicious redirector. The document body, though partially corrupted, contains text related to 'Maths paper 1 foundation 2019 answers' and a URL that appears to be a lure. The primary malicious URL identified is ttraff.ru, which is used in conjunction with a keyword search to disguise the malicious intent. The file also contains a large number of links to Shopify-hosted PDFs, suggesting a link farm for SEO poisoning.
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=maths+paper+1+foundation+2019+answers In PDF document text
- http://files.gobe-everyday.com/uploads/1/3/2/6/132695596/cd88879e8d.pdfIn PDF document text
- http://files.maximilianlaw.com/uploads/1/3/0/8/130874361/jikawulijek.pdfIn PDF document text
- http://files.franceswatkinsartist.com/uploads/1/3/2/6/132681150/61021a9326.pdfIn PDF document text
- http://bifopisaf.jeanisaacson.com/uploads/1/3/1/3/131380600/sodelupojekanakavo.pdfIn PDF document text
- http://files.jacobjosephpiano.com/uploads/1/3/1/3/131379174/4874819.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/1/0430/9811/2167/files/gulapifeg.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0443/9700/2918/files/html5_boilerplate_github.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1501/2511/files/viral_pathogenicity.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3546/7682/files/netomaz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/2728/1558/files/my_hero_acoustic_tab.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/7772/9432/files/napasexafuxevozijaz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1315/2673/files/76783215427.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/0683/5358/files/blessed_assurance_sheet_music.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7427/2924/files/saudi_anti_bribery_law.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8140/9436/files/24748803182.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1614/2497/files/23003956750.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4665/8463/files/vunilojugaxopikusod.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6888/3106/files/33472632422.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8146/6005/files/36485260426.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_off000062fb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x62FB | 5556 bytes |
SHA-256: 759f8fb4d3a4b79c95a1afd66fab94df2841b3aa87fa90e108aad61b887651ea |
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font_01_sfnt_off000075ef.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x75EF | 10180 bytes |
SHA-256: 10e878fa8c9a56483e4f546c9a92c5f93888ec22b2a8af95112b923d3ed3c003 |
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font_02_sfnt_off000098ae.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x98AE | 4324 bytes |
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34 |
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