MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, directing users to download other PDFs from compromised WordPress sites and disposable hosting, disguised as a user manual. Embedded JavaScript is present, likely used to facilitate the download or exploit vulnerabilities.
Machine Learning
- Nyx PDF Classifier malicious score 0.9961
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://profession-your-dr.com/uploads/files/202108171237309933.pdf In PDF document text
- https://playworkspartnership.ca/sites/default/files/file/20674078430.pdfIn PDF document text
- https://www.crossfitparamaribo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b559e9d340a---16031241921.pdfIn PDF document text
- http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a554157b5b4---dopujuzefitulixepunumet.pdfIn PDF document text
- http://global-poseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/161041e4949119---6604670593.pdfIn PDF document text
- http://cerescommoditiesltd.com/Images_upload/files/79222935145.pdfIn PDF document text
- http://bellezaeimagen.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160c900c39ac85---baberarag.pdfIn PDF document text
- http://www.leads-bd.org/app/webroot/js/ckfinder/userfiles/files/tawimurarezububozeravu.pdfIn PDF document text
- http://buyyoutubelikes.com/ci/userfiles/files/posinotuxewixeliv.pdfIn PDF document text
- https://www.pal-kont.hu/wp-content/plugins/super-forms/uploads/php/files/c4ae43b0f8a3fa015874d601d8c5dcde/visulata.pdfIn PDF document text
- https://bibonatura.com/ckfinder/userfiles/files/48399397214.pdfIn PDF document text
- http://pressvaluation.net/userfiles/file/jarufiperixirojiroxokigo.pdfIn PDF document text
- https://www.darrellstuckey.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609e51a634357---daxafaz.pdfIn PDF document text
- https://jaunimodienos.lt/wp-content/plugins/super-forms/uploads/php/files/17jnl2iauo55vjk9c1spkvun56/1733896622.pdfIn PDF document text
- http://bellezaeimagen.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160ad05bf5f2ed---nevonemudadekalimobizu.pdfIn PDF document text
- https://www.sahabatkeluargahomecare.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e07c650e776---39017965574.pdfIn PDF document text
- http://www.photobreak.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160ac950bd75a0---widovaxarumativuk.pdfIn PDF document text
- http://agataklimowska.pl/userfiles/file/70972216735.pdfIn PDF document text
- https://www.willmarshelter.com/ckfinder/userfiles/files/49626526575.pdfIn PDF document text
- https://myphi.biz/nbloom/fckuploads/file/tefowodosunaxosizufex.pdfIn PDF document text
- https://eternalbliss.net/file/72243251626.pdfIn PDF document text
- http://abwlanham.com/uploads/files/bolulexajaxavoxipe.pdfIn PDF document text
- http://elite-nails.pl/Upload/file/45517581152.pdfIn PDF document text
- https://www.hed-endo.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160ad51ec4329d---11136397711.pdfIn PDF document text
- http://romengo.com/ckfinder/userfiles/files/werigamidono.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=braun+age+precision+digital+thermometer+user+manualPDF 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_off00012e74.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12E74 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00014686.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14686 | 19112 bytes |
SHA-256: bbce3cc72ef86ef709e0aaab473d9467b97aed4c66d2ca6372000bb045c7c649 |
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font_02_sfnt_off000177f5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x177F5 | 11112 bytes |
SHA-256: bbbc8e099949b6b4f94fe05960dc5f2c5438425b6aaee1daf2bee47bbd3cb61e |
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