MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a significant number of external URIs, many of which point to compromised WordPress sites or disposable hosting. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a link farm designed to manipulate search engine results, and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' suggests these links lead to malicious content hosted on compromised infrastructure. The embedded JavaScript likely facilitates the redirection to these malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
Heuristics 7
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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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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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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://topclassgreenery.nl/images/file/pifulu.pdf
- https://oncallanatomist.org/ckfinder/userfiles/files/kosugafizolazaw.pdf
- https://oiweld.com/wp-content/plugins/super-forms/uploads/php/files/2b586ee522c53c0a5af24c4ab1976014/tenexaraket.pdf
- http://www.photobreak.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16080bd3fb85b2---66453946692.pdf
- http://jyotiacademicpress.org/uploads/file/jilumenenaseka.pdf
- http://stylist.in.ua/wp-content/plugins/formcraft/file-upload/server/content/files/16079d8fae414a---ruwun.pdf
- https://creativesilhouettes.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16099dab0701cf---bigenelabulobarubenapot.pdf
- https://mrmusicfoundation.org/wp-content/plugins/super-forms/uploads/php/files/76fg0ml69e06j6lna2h7b7nfs1/62581209365.pdf
- http://mfcwestenkwartier.nl/beta/userfiles/file/54108026837.pdf
- http://www.hollyskauaicondo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160994389202f6---xijawakuxedidan.pdf
- http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/p60oa3nf4j945o1nshlfjvmhr5/15015156519.pdf
- http://www.jcca.co.in/wp-content/plugins/formcraft/file-upload/server/content/files/160c8ce18d2f40---moket.pdf
- https://www.drserapkagan.com/wp-content/plugins/super-forms/uploads/php/files/9ei2dop4v0mggo35h4udrq0egm/52838999140.pdf
- https://home18.ru/wp-content/plugins/super-forms/uploads/php/files/fae64e76b0ddfe15ddbc36b9433dbe2c/nikesusunedikukuvukajax.pdf
- https://movesforfree.com/wp-content/plugins/super-forms/uploads/php/files/guv04u6rl5n1rv5npgc3m1vil5/zijizuriboluj.pdf
- http://vitalchurchesinstitute.com/files/file/raleboguzoxiranelifivimas.pdf
- https://frennphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/160adbb793fe3d---lepategawova.pdf
- https://fokusmedia.com/images/uploads/wexupudidilidawuduvufikol.pdf
- https://www.dazzlingdecor.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16079209a4b041---79024946831.pdf
- https://web-sila.ru/wp-content/plugins/super-forms/uploads/php/files/791d6f719042a35259cfe1f8f8a78856/tatilorigoliwidi.pdf
- https://paperland.bg/uploads/file/54624245917.pdf
- https://microfocus-realize2020mea.com/wp-content/plugins/super-forms/uploads/php/files/9d255a34b82c6eb2008a8c5e4fd98775/22018872392.pdf
- http://karmand24.ir/basefile/ehotel724ir/files/nabazejanusitelalujajira.pdf
- http://titibbs.xyz/js/ckfinder/userfiles/files/49588811960.pdf
- https://atraba-holding.com/userfiles/file/walisofux.pdf
- https://fieldofgreen.com/wp-content/plugins/super-forms/uploads/php/files/17a28757195720c0dc19c229167758b4/remugegokatilapevas.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=protein+a+isoelectric+point
- 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://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f313.bin4776653b5b45c6c1b29cba33f18f3ae1a3068c4c9792339268a93adaf7608b01 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF313 | 17912 bytes |
font_01_sfnt_off00012214.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12214 | 16792 bytes |
font_02_sfnt_off00013a2b.bin4cf2b3a323fb8829767afd8ec48381a1a9b22e1973f4c3891820370fa640eb78 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13A2B | 10368 bytes |
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