MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of external links, many of which point to compromised CMS upload directories or disposable hosting, indicating a link farm designed to lead users to potentially malicious content. The ClamAV detection and ML classifier further support its malicious nature, likely as a phishing or redirection tool.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
Heuristics 6
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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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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://jfe.hk/userfiles/bumeresamulewu.pdf In PDF document text
- https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613a0753ce24f---jetozowawedavo.pdfIn PDF document text
- https://livermore.com/wysiwygfiles/file/76419642252.pdfIn PDF document text
- http://hoadondientu-ptp.vn/images/ckeditor/files/8203602222.pdfIn PDF document text
- https://rajatotogroup1.com/contents/files/xogufamukuwavoduzunasexuk.pdfIn PDF document text
- http://rakkhunnursinghome.com/user_img/files/95402714716.pdfIn PDF document text
- http://gianniarnaudo.com/userfiles/files/3615099103.pdfIn PDF document text
- http://demo755.webbazaar.com/uploads/15050276044.pdfIn PDF document text
- https://affordans.com/ckfinder/userfiles/files/84218941711.pdfIn PDF document text
- http://bacsiha.com/public/ckfinder/userfiles/files/74661801711.pdfIn PDF document text
- http://mtcnx.com/upload/fckimagesfile/59196876157.pdfIn PDF document text
- https://daulte.ch/ckfinder/userfiles/files/tixifowuvepirejow.pdfIn PDF document text
- https://thefencedocumentary.ca/adminfiles/file/pubafozurefelo.pdfIn PDF document text
- https://immo-cjeanpaul.lu/userfiles/files/wukezorutupuguvisinud.pdfIn PDF document text
- https://carthink.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613b6d5ab2c20---fibutafalibetejawozitit.pdfIn PDF document text
- https://kanat.com/upload/ckfinder/files/65157247311.pdfIn PDF document text
- http://tks-forever.com/upload/2021/09/04/file/sudabopupola.pdfIn PDF document text
- http://milcontabil.com.br/wp-content/plugins/super-forms/uploads/php/files/sup045gobtsjidkjlq9t4eud42/pexunu.pdfIn PDF document text
- https://inprovitbrasil.com/ckfinder/userfiles/files/51185492957.pdfIn PDF document text
- https://holcom-solar.com/webroot/img/files/xidivavefonaso.pdfIn PDF document text
- http://sintellect.ru/Repository/file/51179110016.pdfIn PDF document text
- https://dintek.eu/uploads/file/50426573735.pdfIn PDF document text
- http://hasomedia.com/userfiles/file/72027451463.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=cctv+viewer+apkPDF 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_off0000d8ca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8CA | 10204 bytes |
SHA-256: 0735a6b9ffbe271f939e88f254d3869547c88be510cf66e7f502ada193da2383 |
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font_01_sfnt_off0000efe4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFE4 | 18308 bytes |
SHA-256: cbfa96b53f652366543ca0bb4bec87a57b9b67c6957dafaf67c9336139bb86e1 |
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font_02_sfnt_off00011fae.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11FAE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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