MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of links pointing to other PDF files hosted on various domains, many of which appear to be disposable or compromised. This behavior is indicative of a link farm, likely used for SEO manipulation or to distribute malicious payloads. The ClamAV detection and ML classifier further support its malicious nature, classifying it as a phishing trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9911
Heuristics 6
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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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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://bcbc3399.com/upload/files/zuzanunitatafadetimisel.pdf In PDF document text
- http://oreade-breche.fr/userfiles/file/jitarupegidozemizilirikev.pdfIn PDF document text
- http://www.kmclogistics.com/wp-content/plugins/super-forms/uploads/php/files/37fbc24247b0c626c3de384864ce5632/43535428793.pdfIn PDF document text
- http://chiari-web.com/ckfinder/optimist/files/renogagomuditebefuzeru.pdfIn PDF document text
- http://onlinecommerce.bg/uploads/pages/files/powotomebituxigew.pdfIn PDF document text
- http://highspiritsmusic.com/ckfinder/userfiles/files/49775643.pdfIn PDF document text
- https://pointvirgule.ca/upload/editor/file/jiriwukofesisinenukese.pdfIn PDF document text
- https://birotex.rs/images/files/lidilapunerok.pdfIn PDF document text
- http://haphadoor.com/upload/files/28435970183.pdfIn PDF document text
- http://7166867.ru/ckfinder/userfiles/files/64932099442.pdfIn PDF document text
- http://osheamaloneynylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/60971930927.pdfIn PDF document text
- http://terapie-psi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160bbab8e4ed41---52793611299.pdfIn PDF document text
- https://joefairless.com/wp-content/plugins/super-forms/uploads/php/files/2b30daa48c62a2f69c4f6fc2a3b75f0d/tegadilojitodozig.pdfIn PDF document text
- https://tfnd.org/wp-content/plugins/super-forms/uploads/php/files/a61bf96e8d0546a9435262be3811cba1/65997473920.pdfIn PDF document text
- https://smobiil.eu/userfiles/files/9558831645.pdfIn PDF document text
- https://dadrarad.ro/userfiles/file/vijojewowojosikeda.pdfIn PDF document text
- http://geyikkimya.com/userfiles/upload/file/19218950312.pdfIn PDF document text
- http://www.farparts.cl/wp-content/plugins/formcraft/file-upload/server/content/files/1607b4f6456c78---64682990468.pdfIn PDF document text
- https://lionkingbali.com/uploads/file/90742551674.pdfIn PDF document text
- http://erulingua.hu/uploads/content_files/files/wodakigugelivajimoramuli.pdfIn PDF document text
- https://nevjegyzek.eu/uploads/file/8109602025.pdfIn PDF document text
- https://bluza-shop.ru/content/File/93063434779.pdfIn PDF document text
- http://stauarchitetti.eu/userfiles/files/1041138174.pdfIn PDF document text
- http://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/1608ff88ca6e6e---15190981396.pdfIn PDF document text
- http://dkyangmei.com/uploadfile/file/2021062003300673499.pdfIn PDF document text
- https://vvpta-irvine.org/userfiles/file/tozutematizi.pdfIn PDF document text
- https://www.hospedeagora.com.br/wp-content/plugins/super-forms/uploads/php/files/j38scjbhpold2t154j4ep0rkob/vawuxasimugudo.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=complete+watercolorist%27s+essential+notebook+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_off0000d6ae.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6AE | 18428 bytes |
SHA-256: e6cc74e3aaf69d65d7ae2579a4652e2eb6710d1a1c9aeacae008bdcdd8566312 |
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font_01_sfnt_off000106f3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x106F3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011f0a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F0A | 11164 bytes |
SHA-256: 38ad9cab15ce5d20e8dfbdd57bcafa56db9ad252f02ea1266b80360d41b80a53 |
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