MALICIOUS
216
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document is identified as a phishing lure, likely intended to trick users into downloading a second-stage payload or visiting a malicious website. The heuristics indicate it's an image-only document with a clickable link, a common tactic for phishing. Multiple URLs were extracted, many pointing to compromised WordPress sites, suggesting a broad campaign. The ClamAV detection and ML classifier further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 8
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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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LUREPDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 69 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
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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://oniceh.ru/uplcv?utm_term=zelda+twilight+princess+gamecube+download PDF link annotation
- https://gmonlinestore.com/wp-content/plugins/formcraft/file-upload/server/content/files/16150e1be6d0d7---rusolurekam.pdfIn PDF document text
- https://bbpartner.cz/userfiles/file/jipepamakunijijaxuzifepo.pdfIn PDF document text
- http://imobiliariaimperio.com/files/files/zapodiliwojiwavulox.pdfIn PDF document text
- http://letnipohar.cz/upload/file/27704552397.pdfIn PDF document text
- http://www.uvhk.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614ae7d8981f2---5218655477.pdfIn PDF document text
- https://shining4u.com/wp-content/plugins/super-forms/uploads/php/files/2da6027bb874d9fdc8d605e83f12d666/13454165078.pdfIn PDF document text
- http://robertoantoniz.com/resources/original/file/85939177541.pdfIn PDF document text
- http://hasicimosnov.cz/foto/Image/file/wakidirudolinijilunej.pdfIn PDF document text
- http://facyt.com.ar/ckfinder/userfiles/files/rovunexiwutu.pdfIn PDF document text
- http://lucidareemantenerepavimentifaidate.it/userfiles/files/9611711051.pdfIn PDF document text
- http://m-camper.ru/ckfinder/userfiles/files/doxujevivogiwosul.pdfIn PDF document text
- http://www.hollyskauaicondo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613eceac2de79---39054972269.pdfIn PDF document text
- http://alles-vom-schreiner.de/userfiles/file/30840966096.pdfIn PDF document text
- http://s2ipower.com/survey/userfiles/files/53223681702.pdfIn PDF document text
- http://mrspk.com/ckfinder/userfiles/files/85929908433.pdfIn PDF document text
- http://zensushidanapoint.com/uploads/files/46436584361.pdfIn PDF document text
- https://motoquadro.de/userfiles/file/47540873604.pdfIn PDF document text
- https://www.kadinlarsitesi.org/wp-content/plugins/formcraft/file-upload/server/content/files/1612fe2b2ed5f1---gupuretojifojuj.pdfIn PDF document text
- http://www.nandomoraes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161518cbe5c41a---98959402709.pdfIn PDF document text
- https://atlasautoglass.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ff5b387189---xetogeliwiwisodoma.pdfIn PDF document text
- http://giadinhmedia.com/uploads/files/kevajusezidolenej.pdfIn PDF document text
- https://www.yoursurveysurveyors.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1613928d7426a5---65560719111.pdfIn PDF document text
- http://kiko168.com/UploadFile/file/20210907000429496.pdfIn PDF document text
- http://wflyyxzrgs.com/uploadfile/file/f56089bb1869dd3b7ebc308238cfe094.pdfIn PDF document text
- https://tspinstruments.com/cache/fck_files/file/92999430663.pdfIn PDF document text
- 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_off0000b3eb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB3EB | 11248 bytes |
SHA-256: 453fcfd0c26b6e7f5086d8568667069d6558c188d9c5fea616e2daef4c1f6513 |
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font_01_sfnt_off0000cdba.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCDBA | 14064 bytes |
SHA-256: 765003fa08b6d9f63299bcffba5ddc8b2910bd535e2d105ef8b588d8349a49be |
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font_02_sfnt_off0000f095.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF095 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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