MALICIOUS
172
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1204.002 Malicious Link
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories, presents a deceptive download button and contains embedded JavaScript. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 8
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://empezo.xyz/js/ckfinder/userfiles/files/vavapajajafizejovijo.pdf In PDF document text
- http://batiment-tunisie.com/userfiles/file/65257800018.pdfIn PDF document text
- http://www.sg-callenberg.de/wp-content/plugins/formcraft/file-upload/server/content/files/160aebceae2480---14152001258.pdfIn PDF document text
- http://springswellness.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607e514e632e7---xebatiferem.pdfIn PDF document text
- http://ne-moloko.ee/wp-content/plugins/super-forms/uploads/php/files/5eadd3c86c64fd91b9600e1e77454831/mukob.pdfIn PDF document text
- https://independentmusicleague.com/wp-content/plugins/super-forms/uploads/php/files/8c3387de9bc48e23b8d03ef14cf540c0/84248655553.pdfIn PDF document text
- http://christembassydocklands.org/wp-content/plugins/super-forms/uploads/php/files/574335308191c6cd85ab6e75782a6dc4/24311086435.pdfIn PDF document text
- https://www.areatransfers.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073d367cb5fa---riragivujipupedosisifadek.pdfIn PDF document text
- http://abaj.cz/UserFiles/File/81842068353.pdfIn PDF document text
- http://middlegeorgiacoinclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cb985376b5---tabadenibuwopusasikuwo.pdfIn PDF document text
- https://www.hdontheroadnapoli.it/wp-content/plugins/formcraft/file-upload/server/content/files/16089a42279a60---87426100396.pdfIn PDF document text
- https://egca.fr/userfiles/file/66207748645.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=crafting+and+building+apk+modPDF link annotation
- 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_off0000d1ab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD1AB | 5292 bytes |
SHA-256: 73de19116d8503cc718122cab2c39eb9be1dd6bb736d50cc72ba98195d97b34b |
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font_01_sfnt_off0000e393.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE393 | 21968 bytes |
SHA-256: 9eff245211e588401d5c7a076103131bf848b1d9991d4e2ed3a7edff80485c09 |
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font_02_sfnt_off0001154b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1154B | 16080 bytes |
SHA-256: e8a2a40c81204f68d188656ee186563bb41cec9665ac8bf1c139965098426a80 |
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