MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, with numerous embedded URLs pointing to compromised WordPress sites, suggesting a phishing or malware distribution scheme. The document body is heavily obfuscated and unreadable, providing no direct content clues, but the overall structure and URL destinations strongly indicate a malicious purpose.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
Heuristics 6
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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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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 http://osullivanspressurewashing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ae8b687d3f9---52835545635.pdf In PDF document text
- http://smartmedicaleg.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077debf157e5---xitemotanox.pdfIn PDF document text
- http://peggylittlelawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/82928622471.pdfIn PDF document text
- http://bonfiremadigan.com/uploads/fckeditor/file/vakusoluximoxuxutututuju.pdfIn PDF document text
- http://master-br.ru/img/file/sadamiwonomokutotutaxixap.pdfIn PDF document text
- http://alibabashipping.com/userfiles/file/gepap.pdfIn PDF document text
- http://solentpodiatry.com/jackvl940/web/content/images_uploaded/file/mevepatolazejirudarof.pdfIn PDF document text
- http://tdjl.com/uploadfile/file///2021080916500641.pdfIn PDF document text
- https://patriot.ch/wp-content/plugins/super-forms/uploads/php/files/na34om6hk9inivk100iok1bnk6/jitetojomizakafo.pdfIn PDF document text
- http://atenngo.com/admin/sites/site/documents/69660231125.pdfIn PDF document text
- https://idfusionllc.com/wp-content/plugins/super-forms/uploads/php/files/6ed65f1c50b0ee418f680adc0f339ae7/fefegimunugewodurage.pdfIn PDF document text
- http://sbnjl.com/userfiles/files/funiminexofomoditaz.pdfIn PDF document text
- https://alfa-pechati.ru/wp-content/plugins/super-forms/uploads/php/files/1e4d6e0893154eec69aa8e1d2f022e42/renefo.pdfIn PDF document text
- http://xn----8sbaqfskngn1qi.xn--p1ai/userfiles/file/lolufadopesafujozezibaw.pdfIn PDF document text
- http://tuvanluatdanang.com/upload/ck/files/wusuje.pdfIn PDF document text
- https://robertmatzuzi-massagetherapist.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608587e3ed3ab---20613192125.pdfIn PDF document text
- https://akrmedia.no/ckfinder/userfiles/files/bajukekagimiko.pdfIn PDF document text
- https://christianklein.eu/Quansis/ckfinder/userfiles/files/xogudenabeziluma.pdfIn PDF document text
- https://imapcb.org/wp-content/plugins/super-forms/uploads/php/files/096e8112aa6ada79141d4cf68412d40a/26182833132.pdfIn PDF document text
- https://ntct.dz/ckfinder/userfiles/files/1900705976.pdfIn PDF document text
- https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609835cd79a4b---nawezudogukikukose.pdfIn PDF document text
- http://promador.pl/userfiles/file/tapiwikiziwedax.pdfIn PDF document text
- http://pomodorolennep.de/gfx/userfiles/files/vakedipisomiwiru.pdfIn PDF document text
- http://travisreunion.com/clients/1/1d/1d9c560ef9ee6310b862f4c9d288d7bd/File/19525164389.pdfIn PDF document text
- https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/7178f7e350286c6360d07cd5444e90ff/rimowizalapode.pdfIn PDF document text
- https://www.proctoloji.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607433eff3ee7---60224946697.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=vivaldi+four+seasons+easy+piano+sheet+musicPDF 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_off0000da06.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA06 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f218.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF218 | 16828 bytes |
SHA-256: b7e0b286cc981d2cbfaf3c0a7fc5e2df854b0aaf883d64b81f90cc8df4fb97fc |
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font_02_sfnt_off00011ddc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11DDC | 11132 bytes |
SHA-256: 17c4f221aa22caf661133a759da38ca7a5ab36906c9b6357433d1be16923f8e8 |
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