MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains embedded links that redirect to malicious infrastructure, specifically identified by the 'PDF_MALICIOUS_REDIRECTOR_LINK' heuristic. The document body, though heavily obfuscated, contains text related to 'area of circle proof pdf', likely a lure. The presence of numerous external PDF links, many hosted on Shopify, suggests a link farm designed to improve SEO for malicious content. The ML classifier also strongly indicated maliciousness.
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=area+of+circle+proof+pdf In PDF document text
- http://files.flocrowcroft.co.uk/uploads/1/3/0/8/130814346/11e77c7.pdfIn PDF document text
- http://files.synodalcatholicsse.org/uploads/1/3/1/4/131452953/xuxig.pdfIn PDF document text
- http://files.cozykidsembroidery.com/uploads/1/3/1/4/131409170/ninebafakafekip.pdfIn PDF document text
- http://files.chikuniradiozm.org/uploads/1/3/0/7/130739991/gixinetuwuk-beruwidopax.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/1/0431/6856/3355/files/golasabigizejusudavijitu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/0705/7825/files/purubidejurupefedu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/0304/4263/files/fagutonaxovirusajusasunu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/7522/1142/files/wixijowisakavivevap.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/84574839703.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0799/1208/files/lepowoka.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1129/2829/files/tejemazaxadevudofub.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/1263/6322/files/renerabirawupaxunuse.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3096/0549/files/jenosubesar.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9072/3487/files/jabimolujebit.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/9239/3640/files/juremanijexodijo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9070/6589/files/70058471689.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6237/0210/files/belujigapuwotuxus.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c370.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC370 | 4560 bytes |
SHA-256: 9933763c274951b3b823ec069487ea1feb6dddb25ed55c547489005933c44009 |
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font_01_sfnt_off0000d2fa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD2FA | 16504 bytes |
SHA-256: 9d078c97c665844497d39fe41853f7156f2075e860890bcf4104ec36905d7cbb |
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font_02_sfnt_off000106ad.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x106AD | 16448 bytes |
SHA-256: b8a2e53040bcab2b98db4c9f842eed0ae66586d7fbe41681925ba7ed377ef4a2 |
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