MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious. It contains a link farm pointing to various compromised WordPress upload directories and disposable hosting sites, likely intended to distribute malware or facilitate phishing. The presence of external URIs and a link farm suggests an attempt to redirect the user to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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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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://krisoc.ru/uplcv?utm_term=mapya+da+ladla+mp3+ringtone+download PDF link annotation
- http://www.communityheroesproject.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609c1cb426f10---58713891140.pdfIn PDF document text
- https://www.medipratik.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072893aaad7b---zunumivijalowujibutege.pdfIn PDF document text
- http://terapeutickemasaze.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1608a02fdeea5f---76717182668.pdfIn PDF document text
- https://www.d-table.com/wp-content/plugins/super-forms/uploads/php/files/875ac3429b563d49df2ed34faf50be80/96948612192.pdfIn PDF document text
- http://www.movingintofreedom.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ff563d6116---walibinetufefuf.pdfIn PDF document text
- http://mdbim.pl/ubezpiecz/obrazy/file/jilixulimovadonew.pdfIn PDF document text
- http://snookerfootball.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1609d4c4c755f2---43820241966.pdfIn PDF document text
- http://nowyhotelik.pl/userfiles/file/nobijibifufume.pdfIn PDF document text
- https://brahmagnanam.org/fck_uploads/file/manuzodila.pdfIn PDF document text
- http://www.naturapreserved.com/wp-content/plugins/formcraft/file-upload/server/content/files/160877a9f59bc0---36987254781.pdfIn PDF document text
- https://harpethvalleyhealth.com/wp-content/plugins/super-forms/uploads/php/files/45f49d1c764137eac43757b85bc774e3/wogaxeta.pdfIn PDF document text
- http://opalbiosciences.com/wp-content/plugins/formcraft/file-upload/server/content/files/16094537702fd1---geganu.pdfIn PDF document text
- http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a58969e5261---66701869094.pdfIn PDF document text
- http://guides2alpes.org/uploads/file/63472953631.pdfIn PDF document text
- https://ltgtrends.com/wp-content/plugins/super-forms/uploads/php/files/0a25873edea1686f659c08b561d57f8a/71714878031.pdfIn PDF document text
- https://sunwayhk.com/louis/STARKGROUP/ckfinder/userfiles/files/nixebokuvaguz.pdfIn PDF document text
- https://kuechentreff-schmid.de/wp-content/plugins/super-forms/uploads/php/files/o13sniheelgnjjmone39bsiskg/22878861296.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_off0000d253.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD253 | 5464 bytes |
SHA-256: 458307b548eaacef1ab251d8520b37a69d65122385ba00d954e1c55458a71f1a |
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font_01_sfnt_off0000e4f7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE4F7 | 10544 bytes |
SHA-256: 22bd32a839cec8e619d957077e693092e8aa1bb4657ead4187db5e3cfefc6f51 |
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