MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier as malicious. It contains embedded JavaScript and a large number of external links, many of which point to compromised WordPress sites or disposable hosting, suggesting a phishing or malware distribution campaign. The presence of embedded JavaScript indicates an attempt to execute malicious code within the PDF viewer.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 7
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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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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://irlanc.ru/uplcv?utm_term=download+video+by+url+android PDF link annotation
- http://barrospizzadb.com/uploads/files/koboxugejasa.pdfIn PDF document text
- http://kazuma.ru/ckfinder/userfiles/files/6147519497.pdfIn PDF document text
- https://defi128.com/userfiles/files/wofuvegekijikiwexebab.pdfIn PDF document text
- http://cuacuonnhaxuongbinhduong.com/upload/files/84085066920.pdfIn PDF document text
- http://energcomb.net/cms_enercomb/sgi_userfiles/userfiles/files/1432770090.pdfIn PDF document text
- http://longarmquiltingacadamy.com/fckeditor/userfiles/file/pufimor.pdfIn PDF document text
- http://satit.nrru.ac.th/satit/_Adminis/ckfinder/userfiles/files/7513121180.pdfIn PDF document text
- https://jiu-hang.com/upfiles/editor/files/57927560412.pdfIn PDF document text
- https://bodzlomu.com/userfiles/file/60254990662.pdfIn PDF document text
- https://vilus.cz/userfiles/file/gojokifabixum.pdfIn PDF document text
- https://www.rogierstoel.nl/wp-content/plugins/super-forms/uploads/php/files/58q60suhseg5cc1du3d0197k1g/35026316625.pdfIn PDF document text
- http://exosushi.com/uploads/files/terudufunivom.pdfIn PDF document text
- http://lagrupacio.cat/file/ruvawoloniwigerekad.pdfIn PDF document text
- https://proff-doors.ru/wp-content/plugins/super-forms/uploads/php/files/5e49c28d30c1b2bb2d57ad211044a127/vigojosixubas.pdfIn PDF document text
- http://ukrkarta.ua/fckeditor/userfiles/file/vivijomewid.pdfIn PDF document text
- http://technoauto.jp/js/upload/files/29196508885.pdfIn PDF document text
- http://studiogiamberardino.it/userfiles/files/92088126275.pdfIn PDF document text
- http://musicpark-live.de/userfiles/file/551087889.pdfIn PDF document text
- http://everest-c.ru/ckfinder/userfiles/files/5516601688.pdfIn PDF document text
- https://www.dynasil.com/wp-content/plugins/super-forms/uploads/php/files/72d3540979ac84575606596237a1e7ae/jolebuwefifavukilodel.pdfIn PDF document text
- http://www.mmd.ntou.edu.tw/ckfinder/userfiles/files/89239929333.pdfIn PDF document text
- https://ksi-system.pl/editorfiles/file/wudabejulariwoxegefon.pdfIn PDF document text
- http://bikipvuikhoedep.com/app/webroot/files/editor_upload/files/kulojufi.pdfIn PDF document text
- https://rts-wm.com/ckfinder/userfiles/files/28373194494.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_off0000dda3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDDA3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f5ba.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5BA | 10484 bytes |
SHA-256: 7ef2995cfe48aeeee6bd324692497650ffd6047e6e3ae5e1668cb83e646c6091 |
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font_02_sfnt_off00010d99.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D99 | 17044 bytes |
SHA-256: 95c7aa183a97dd2b5d52e54a29c2120b193398ad2413aae19efd808f2bd46fb2 |
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