MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is a common technique for delivering malicious content. The PDF also contains numerous links to external websites, many of which are hosted on compromised WordPress sites, suggesting a link farm designed to redirect users to malicious destinations. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
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 http://www.radiopopiatej.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135ce8416d37---vusixazozifej.pdf In PDF document text
- http://irina-beha.com/ckfinder/userfiles/files/38492491025.pdfIn PDF document text
- http://emanuelmlevin.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/xopasevirosofuwase.pdfIn PDF document text
- http://airfa.it/userfiles/file/79191845004.pdfIn PDF document text
- http://ipai-bg.eu/img/file/nofewitanewid.pdfIn PDF document text
- http://maxbrio.kr/files/files/91113226874.pdfIn PDF document text
- https://www.pal-kont.hu/wp-content/plugins/super-forms/uploads/php/files/9d00de6e1c25facfe14aaf1982e45843/22862343728.pdfIn PDF document text
- http://nanoservice.cz/upload/file/49656183001.pdfIn PDF document text
- http://webcertain.net/contentupload/fckeditorUploads/organization_/file/40069640667.pdfIn PDF document text
- http://fasson.vip/images/editor/files/kusuxojufapifobimitakeji.pdfIn PDF document text
- https://ddnepal.com/assets/userfiles/files/55677925968.pdfIn PDF document text
- http://thegioicamdo.com/upload/files/worugotu.pdfIn PDF document text
- http://wwstationery.com/files/file/xupekofifemesunovuzupimeg.pdfIn PDF document text
- https://mhreng.com/userfiles/file/zirunitexirawe.pdfIn PDF document text
- https://faguaflowers.com/images/admin/file/67646433337.pdfIn PDF document text
- http://newkontakt.ru/userfiles/images/file/13560525101.pdfIn PDF document text
- http://hutnia.pl/userfiles/file/75099208693.pdfIn PDF document text
- https://pilot-nav.com/ckfinder/userfiles/files/jukazuwawaravunivigitudum.pdfIn PDF document text
- http://cps-mbstu.edu.bd/app/webroot/js/ckfinder/userfiles/files/suwixuwobeg.pdfIn PDF document text
- http://justsayhi365.com/uploads/file/gofawagixifi.pdfIn PDF document text
- https://roofmed.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1612f075fceb24---73018305253.pdfIn PDF document text
- http://klm-co.ru/foto/ck/files/95538695603.pdfIn PDF document text
- http://angarakshaksecurity.com/userfiles/file/43138798831.pdfIn PDF document text
- http://www.gunyagder.org.tr/wp-content/plugins/super-forms/uploads/php/files/o2hbkhs32pvl6tr682avmu2a77/zesogajoxokupamij.pdfIn PDF document text
- http://saxonrt.hu/img/userfiles/files/tazew.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=enable+screenshot+on+androidPDF 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_off0000d64c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD64C | 10592 bytes |
SHA-256: cf212e83546b5c2175b16e7a3c5833f50adbcd118ac7aa91441486acafa498db |
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font_01_sfnt_off0000ee63.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE63 | 18624 bytes |
SHA-256: b67ccafa22874ba4d4e5c1cf9f24a5b6a7f6d55fd97c263a6622d6e450bf6822 |
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font_02_sfnt_off00011ee7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11EE7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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