MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to external resources, many of which point to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to redirect users. The PDF structure and link farm behavior are consistent with phishing or malware distribution campaigns.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
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 https://signika.pl/Upload/file/gibinegojumore.pdf In PDF document text
- http://chothuexeninhbinh.net/data/dulieu/files/78336447983.pdfIn PDF document text
- http://alimentosldm.com/userfiles/file/kokafikodusomiji.pdfIn PDF document text
- https://alatheir.com/atheirwsfiles/file/vuwofozuvizodojawe.pdfIn PDF document text
- https://www.vedaaz.com/wp-content/plugins/super-forms/uploads/php/files/9504f64f43f2e9ca9c415abe3f94e6e6/zizajagefetisudelasi.pdfIn PDF document text
- https://www.lang-mayer.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607dd29dd260d---13660120529.pdfIn PDF document text
- https://gsm.company/ckfinder/userfiles/files/kabafibekokefekides.pdfIn PDF document text
- https://centrobrands.com/wp-content/plugins/super-forms/uploads/php/files/4dfc2022f3e138bece1a2c89529b7e49/27704849428.pdfIn PDF document text
- http://driscollandgibson.com/images/edit_images/file/saguxufukarex.pdfIn PDF document text
- http://3duct.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073cb0b848af---97085143442.pdfIn PDF document text
- https://nutritie-metabolism-sanatate.ro/app/webroot/files/userfiles/files/79712327352.pdfIn PDF document text
- https://bf-pomosch.ru/wp-content/plugins/super-forms/uploads/php/files/f5ekno4iflgt429r9olv68emh3/lipani.pdfIn PDF document text
- http://lightningriskassessment.com/ci/userfiles/files/bixelafexarasej.pdfIn PDF document text
- https://gmonlinestore.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cff9b7a79c---34711850376.pdfIn PDF document text
- https://www.couleurs-et-jardin.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160b5bfd62559c---gigopowawavitune.pdfIn PDF document text
- http://kotolantopeni.cz/file/21184188969.pdfIn PDF document text
- http://traditionsradio.com/wp-content/plugins/super-forms/uploads/php/files/a27fead2c353b932785c36f88629ab26/zovurewomefibamamagurajiw.pdfIn PDF document text
- http://www.mondzorgvesa-voorschoten.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16074ad15e65bb---wedixuko.pdfIn PDF document text
- https://baileyelectrical.services/wp-content/plugins/super-forms/uploads/php/files/921kte3a84anr7qrq02culjba2/21050945011.pdfIn PDF document text
- https://kop-trans.pl/uploads/userfiles/files/72168763816.pdfIn PDF document text
- http://www.emporiocaritaspisa.it/wordpress/wp-content/plugins/formcraft/file-upload/server/content/files/16082e8ea0daff---karosoxuxin.pdfIn PDF document text
- https://www.sharpeningfactory.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d1248eaaf6---gamaba.pdfIn PDF document text
- http://svsteinfurth.de/radsportfiles/file/32665677102.pdfIn PDF document text
- https://congtydaihai.com/upload/files/zupajomadumegudawe.pdfIn PDF document text
- http://morecoredesign.com/images/imageUps/files/zarosorozabolefubagafavo.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=combretum+paniculatum+pdfPDF 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_off0000d7c9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7C9 | 10884 bytes |
SHA-256: 86df2eb3c0520dc46f5ec981b66b852d1d91f747b5bdca7589ce9e822a824996 |
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font_01_sfnt_off0000f0b4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0B4 | 18344 bytes |
SHA-256: 9a5f6e0db1e2a2a093510f7f508c513fec9e1d6cca1380839356d687aa6edc88 |
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font_02_sfnt_off0001201a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1201A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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