MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous links designed to appear as legitimate downloads, but they redirect to malicious infrastructure. The primary lure is a fake link for 'options futures and other derivatives 10th edition pdf free download'. The ML classifier strongly indicated maliciousness, and the PDF structure itself is suspicious due to a high volume of external links.
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/wb?keyword=options%20futures%20and%20other%20derivatives%2010th%20edition%20pdf%20free%20download In PDF document text
- http://files.thestationinclaresholm.ca/uploads/1/3/2/6/132682930/4e2b7c8c0.pdfIn PDF document text
- http://files.odinshorsewoodworks.com/uploads/1/3/1/4/131407406/dolibiguwe.pdfIn PDF document text
- http://files.tijaniya.org/uploads/1/3/1/3/131398022/f2d635f.pdfIn PDF document text
- http://files.makingsiliconebabies.com/uploads/1/3/1/1/131163859/bolumumojilid.pdfIn PDF document text
- http://files.dentalexcellenceindia.com/uploads/1/3/0/7/130776374/2798006.pdfIn PDF document text
- http://files.michaeljosephmurray.com/uploads/1/3/1/4/131407898/zemewu-tagejasabival.pdfIn PDF document text
- http://files.hd-crafts.com/uploads/1/3/1/1/131163914/gukusewavafa_zamopelumafimek.pdfIn PDF document text
- http://files.dalycitytowing.org/uploads/1/3/1/1/131164125/rukajad-bizevupigox-lapedanab-nutokuruzo.pdfIn PDF document text
- http://files.thepiteamofillinois.com/uploads/1/3/1/0/131071312/4059306.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://piledina.files.wordpress.com/2020/06/liluwowoxuzopofazemokes.pdfIn PDF document text
- https://rerazudo.files.wordpress.com/2020/07/66467685622.pdfIn PDF document text
- https://venazuburam.files.wordpress.com/2020/06/nizopejemesi.pdfIn PDF document text
- https://ribesed.files.wordpress.com/2020/06/20225856702.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zonixalekena.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/2226/2178/files/76625925445.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6191/1458/files/32559566824.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/4622/4551/files/zokuwutor.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2692/3172/files/ludonuden.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lugapib.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zipepatijexozuzazes.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_off000072f3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x72F3 | 5384 bytes |
SHA-256: 01be53719811f691aecd859fca0ff67d98d770174a75f7ba9e30a472d51b85d4 |
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font_01_sfnt_off0000854a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x854A | 10708 bytes |
SHA-256: 5b31607ac7513e282f4f869a0350ef2286706c1e7a9ded1af075949fb433a836 |
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