MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 User Execution: Malicious File
T1059.007 JavaScript
The PDF file contains multiple links to external websites, many of which are hosted on compromised WordPress installations or use IP address literals, indicating a phishing or credential harvesting attempt. The document body, though heavily obfuscated, suggests a lure related to 'museum exhibit proposal guidelines'. The presence of PDF_URI and PDF_SEO_DISPOSABLE_LINK_FARM heuristics further supports the malicious intent of directing users to potentially harmful content.
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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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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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://paloaltospeakerseries.com/wp-content/plugins/super-forms/uploads/php/files/e765368af168451ad179dac8ef869dab/muges.pdf
- https://www.sanier.pl/wp-content/plugins/super-forms/uploads/php/files/9s4ksdo0uce6a8vannu66a7a9m/vinukaleru.pdf
- http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083c8454ca3e---gusalurel.pdf
- https://www.nobleorthodontic.com/wp-content/plugins/super-forms/uploads/php/files/cee6a08d503b6c2440c53388b176a3eb/wawilozexogodusemasotiw.pdf
- https://www.prowallpanama.com/wp-content/plugins/super-forms/uploads/php/files/6aa934fa1acb827a5b5cd0e2e3c3fc08/xuneretel.pdf
- https://fizjolech.pl/userfiles/file/79350729172.pdf
- https://xn--64-mlcufjjaii0l.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/c4e838e9469c4d5fea5ad767414a8ef0/13928275298.pdf
- http://trendymamy.pl/userfiles/file/50605045293.pdf
- http://vilaportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074a143c2e9a---kixujadinujusakade.pdf
- https://www.siemers-deutschmann.de/wp-content/plugins/super-forms/uploads/php/files/peo0pmm7vurn5tnu90iv5g3fr0/68371234611.pdf
- https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606e83d4b2743---94567205394.pdf
- http://104.156.58.56/~web2inbox/wp-content/plugins/formcraft/file-upload/server/content/files/160775e9214a43---fubelu.pdf
- https://sv-fin.ru/wp-content/plugins/super-forms/uploads/php/files/f0b81995eed382ace6c437cfb2f4a7cc/83623476285.pdf
- https://edoxmarketing.com/wp-content/plugins/super-forms/uploads/php/files/4lcapugdji8i2f4sgtdmribae1/lesidevuforipogibed.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=museum+exhibit+proposal+guidelines
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d08c.binbbe845ade8fb0c25ef922dff14e651fdfc629e1f9f6bd690b3a5e21c11f57933 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD08C | 5584 bytes |
font_01_sfnt_off0000e364.bin452456f0667dd78b1b81b53c7bba2ad268bace63277e0d7ae0a7817b54561d82 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE364 | 10448 bytes |
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