MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous links to external websites, many of which appear to be compromised CMS upload directories or disposable hosting, suggesting a link farm designed to distribute malware. The presence of a download button lure and ClamAV detection as 'Pdf.Phishing.Trojan' further supports a malicious intent to trick users into downloading harmful files. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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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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External URI info PDF_URIPDF contains an external URL action
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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://nomylo.ru/uplcv?utm_term=auto+cheats+esp+apk+download PDF link annotation
- https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb27669ec76---46049485800.pdfIn PDF document text
- http://goldnumber.info/userfiles/file/14180543513.pdfIn PDF document text
- http://www.mtpartnersfl.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606da3a4b7b00---zitanenoduvu.pdfIn PDF document text
- https://freedomhypnosisnyc.com/wp-content/plugins/super-forms/uploads/php/files/5f5a44a48bab6e156f6db81d6c78f1ed/84350695157.pdfIn PDF document text
- http://assytekservizi.com/userfiles/files/bubujazeboguparikepi.pdfIn PDF document text
- https://phase1acoustics.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c5cf5a6bd07---28856462570.pdfIn PDF document text
- https://primax.fr/wp-content/plugins/super-forms/uploads/php/files/qp7jqn26eclg0u7lan9f9vnft2/37319359198.pdfIn PDF document text
- https://40parables.com/wp-content/plugins/super-forms/uploads/php/files/795f53da536a81d63d263932466b7a41/vapojugap.pdfIn PDF document text
- http://etasystem.net/userfiles/files/gekobokuxozitor.pdfIn PDF document text
- http://texmet.pl/userimages/file/72270282986.pdfIn PDF document text
- https://a2designbg.com/userfiles/file/nimaxajowo.pdfIn PDF document text
- https://soudurelauziere.com/upload/editor/file/wulerusaxemije.pdfIn PDF document text
- https://thriveelearning.com/wp-content/plugins/super-forms/uploads/php/files/8913a20e06d5d99c0bc5febb85ae617b/najifunisajisojupokamu.pdfIn PDF document text
- http://alvasari.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b25e205cf3---dilesutebotasuza.pdfIn PDF document text
- http://terminsk.by/pics/files/rinob.pdfIn PDF document text
- http://alfavit.tv/userfiles/file/lexapow.pdfIn PDF document text
- http://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/1609b62179f649---87448497943.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000fffa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFFA | 5208 bytes |
SHA-256: f4f1099db0b1a6ae73d9146256e28cfea5201f6e47dbc6945490ded9957dfb17 |
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font_01_sfnt_off000111c3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111C3 | 11120 bytes |
SHA-256: aefed79e8a8a0884f20f16e69702e3cbaa2f311d4fd4fdb2edcea3ad262a28cd |
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