MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links, many of which point to a redirector service that is known to host malicious content. The document's content and structure suggest a phishing attempt disguised as a free download, aiming to trick users into visiting malicious sites. The ML classifier strongly supports the malicious verdict.
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.cc/wb?keyword=essential%20elements%20for%20strings%20viola%20book%201%20pdf In PDF document text
- http://files.maydaystudio.com/uploads/1/3/1/6/131637546/162127.pdfIn PDF document text
- http://files.knowyourhair.co.uk/uploads/1/3/0/8/130814187/pujumuxosefuk_lazugivogilaw_jibiwobowa_womow.pdfIn PDF document text
- http://files.morjimcocopalms.com/uploads/1/3/1/3/131384789/2a0aea98a146c0c.pdfIn PDF document text
- http://files.richlandchurch.com/uploads/1/3/0/8/130874567/1368173.pdfIn PDF document text
- http://files.visitwesternheritagecenter.org/uploads/1/3/0/7/130738719/bagiramik.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/1/0433/9813/5966/files/68969413617.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/3531/9711/files/sixoze.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/0670/5312/files/34521733524.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7560/9510/files/nenefunux.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/11067845032.pdfIn PDF document text
- https://tawumigudifo980931470.files.wordpress.com/2020/06/32878395093.pdfIn PDF document text
- https://wubewaritas.files.wordpress.com/2020/06/4991872570.pdfIn PDF document text
- https://kerejib.files.wordpress.com/2020/07/wojivezazuralozu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/38692385895.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/6083/8050/files/21821422723.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2135/3635/files/94220334898.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8421/0583/files/zojelugegagadepepojovilo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0649/2823/files/42302342098.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/646255477.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8579/0365/files/93380270533.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/ledoviz.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_off000078e1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x78E1 | 5420 bytes |
SHA-256: d5b8f680e4fdcf16ec383dcdff553d951e53db1468f22f5d5f6ec36809b0bc6a |
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font_01_sfnt_off00008b38.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8B38 | 10096 bytes |
SHA-256: 5f2cde7fbfd5a8bec57a1db5d8d1b3f27bad9382d997c234ab3ad9d4d0dc7022 |
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