MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a large number of embedded links, many of which point to external sites. One critical heuristic identified a link to a known malicious redirector, ttraff.com, which is presented in the document body as an 'English unlimited placement test pdf'. This suggests a social engineering lure to trick users into clicking the link. The file also contains numerous other links to Shopify-hosted PDFs, likely part of a link farm to improve search engine ranking for malicious content. No scripts were extracted, but the primary attack vector appears to be the malicious redirector.
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.com/pify?keyword=english+unlimited+placement+test+pdf In PDF document text
- http://files.ucointernational.com/uploads/1/3/1/4/131453969/satikivowabu-vajukopuzig-gubarodixekuba-jurowob.pdfIn PDF document text
- http://files.dassiedahan-author.com/uploads/1/3/1/4/131436971/wixodasa.pdfIn PDF document text
- http://files.loveglitter.com/uploads/1/3/1/3/131398362/4106793.pdfIn PDF document text
- http://files.canyoncitygrill.com/uploads/1/3/1/4/131407459/719052.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/1/0438/2264/5408/files/cash_flow_forecasting_in_software_project_management.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0844/2020/files/verypdf_to_word_ocr_converter_serial_key.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/4227/4471/files/inkscape_manual_free_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/4746/1788/files/74174794581.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/9700/5981/files/ap_grama_sachivalayam_syllabus_2020_in_telugu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6772/8279/files/2383872361.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2973/2248/files/fubetirilota.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/6565103434.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4346/2037/files/bojupemoxoselu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/6885/9303/files/54567983993.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5150/7094/files/6114024340.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2585/8711/files/duwipuzinosin.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8383/3249/files/54555945884.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3573/7755/files/d_alembert_principle.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_off00005bb4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5BB4 | 5432 bytes |
SHA-256: 7d39ca14f2eda49f8fb09afaf7dc4538af2999e6a23974655954e48603428de6 |
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font_01_sfnt_off00006e06.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6E06 | 10412 bytes |
SHA-256: fb35211248b1d9c43a0c45d10c63e22534aaf970be506ecc3a1887c92ba5e69e |
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