MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF was flagged by a machine learning classifier and ClamAV as malicious. It contains numerous links to compromised WordPress sites and disposable hosting, indicating a link farm designed to redirect users to malicious content. The presence of embedded URLs and the nature of the heuristics suggest it is likely used for phishing or to deliver a second-stage payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9935
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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://www.uniqueartzz.com/wp-content/plugins/super-forms/uploads/php/files/odp6s4rktocn48s24ssuh8cpsg/tiniwatine.pdf In PDF document text
- http://sistarelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/35554439531.pdfIn PDF document text
- https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b481ea3325---gojekidonit.pdfIn PDF document text
- https://www.domaine-vrignaud.com/ckfinder/userfiles/files/nugikuguzexiwuvijodu.pdfIn PDF document text
- http://www.x454.com/wp-content/plugins/super-forms/uploads/php/files/t3ovj2kjqqfrkbkv84943ifa65/noger.pdfIn PDF document text
- https://winston-woodward.com/wp-content/plugins/super-forms/uploads/php/files/0b65b3ffec76db638de51e175bdce07c/28976464813.pdfIn PDF document text
- http://www.circoloaletrium.it/wp-content/plugins/formcraft/file-upload/server/content/files/1608f5b1bd22e7---41514927374.pdfIn PDF document text
- http://zakuskymoser.cz/www/ckfinder/userfiles/files/kenizewimekogibezulavab.pdfIn PDF document text
- https://flvirginia.com/wp-content/plugins/super-forms/uploads/php/files/ad77857971e2b9cdf72a62da270f68ef/41104456963.pdfIn PDF document text
- https://www.kadeavenue.com/wp-content/plugins/super-forms/uploads/php/files/65ca08997864062536faffad2eb8ca2f/bazavod.pdfIn PDF document text
- https://cruiseship.cruises/wp-content/plugins/super-forms/uploads/php/files/3g2ugfffanhdnoaq65j81km8f7/gijefazopusiri.pdfIn PDF document text
- http://ballarioarchitetti.eu/userfiles/files/nasipedinolob.pdfIn PDF document text
- http://www.dj-csnl.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606d14f2851cc---90640944507.pdfIn PDF document text
- http://themetamorphoseprogram.com/userfiles/file/zawukupepuku.pdfIn PDF document text
- https://pisangmanis.com/contents//files/31029031143.pdfIn PDF document text
- https://edebmachine.com/images/media/files/wesusubamas.pdfIn PDF document text
- https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607835ccdb2b1---xowesesigivizuwukuxumawe.pdfIn PDF document text
- http://xn--b1adrijbbb.xn--p1ai/upload_picture/87531515525.pdfIn PDF document text
- http://www.virtualaid.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160911e698337e---konafubujosowanewura.pdfIn PDF document text
- https://action-roofing.com/wp-content/plugins/super-forms/uploads/php/files/5b85ca754b8be73275ebc98805b4f69c/jimexel.pdfIn PDF document text
- https://floridainvestment.cz/files/file/64343296135.pdfIn PDF document text
- https://www.arphplumbing.co.uk/wp-content/plugins/super-forms/uploads/php/files/ir2hg8uiul0f2nrt10jluce1vn/juwisaxaxaxukopirax.pdfIn PDF document text
- https://aryaayur.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084df0ac4635---gamerufixurelamubezizojo.pdfIn PDF document text
- http://avs-market.ru/admin/ckfinder/userfiles/files/40731706093.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=kenmore+water+softener+manual+400PDF 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://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_off00010bc7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BC7 | 10660 bytes |
SHA-256: 95e883c1d703a357e7f1c3b44e08733c18f1b40b962a35afdc63dcc29a74e4ab |
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font_01_sfnt_off00012454.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12454 | 17792 bytes |
SHA-256: 8a9c2cd08770756f8e119214d489644e4814bc857340bbbc88d75842bca8ebb3 |
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font_02_sfnt_off00015252.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15252 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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