MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file exhibits malicious characteristics, primarily through its use of redirector links pointing to known malicious infrastructure and a large number of SEO-optimized links designed to lure users. The ML classifier strongly indicates maliciousness. The document body contains text related to 'understanding business law 9th edition pdf' and a URL that appears to be a lure for downloading this content, which is likely a pretext for distributing malware.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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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
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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/wb?keyword=understanding%20business%20law%209th%20edition%20pdf In PDF document text
- http://files.jbirdmultisportcoaching.com/uploads/1/3/0/7/130740625/valof.pdfIn PDF document text
- http://files.adamwilliamchalmers.com/uploads/1/3/2/8/132815791/vilujegol.pdfIn PDF document text
- http://rogug.feministlibrarian.co/uploads/1/3/0/7/130776680/lesikikoburufisufopa.pdfIn PDF document text
- http://rilejiluw.honeypotcreativecafe.com/uploads/1/3/1/3/131398368/3b051e011c0.pdfIn PDF document text
- http://files.oilfieldfrclothing.com/uploads/1/3/1/3/131383629/talepodesafamixa.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/1/0431/3799/0813/files/60501818785.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/4587/7922/files/adaptive_learning_technology.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0513/2456/files/32686550022.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9826/6016/files/1972_cutlass_supreme.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/7786/8443/files/baduw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2809/4882/files/nazawafita.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7959/8229/files/mujivovaf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0517/4179/files/buwejobexemi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9286/0327/files/phonics_lesson_plans_for_1st_grade.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8904/3358/files/ditibiludukum.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8425/9231/files/buwemovagapix.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7321/6412/files/noxumubukapazuzumugepa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7738/6918/files/super_mario_bros_3_online.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_off0000745e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x745E | 5684 bytes |
SHA-256: cc265654f21c19f7ec82a58f9483c23614bca2434b63236ad0863579e868d35b |
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font_01_sfnt_off000087b0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x87B0 | 12772 bytes |
SHA-256: d48868461e0cbce77659c6ae65669bef34e522442afc5a5e995dd1d262156954 |
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