MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous external links, many pointing to compromised CMS uploads or disposable hosting, suggesting a link farm or phishing lure. The PDF structure and embedded URLs are consistent with a phishing attack, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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 https://huntic.ru/uplcv?utm_term=no+worries+meaning+in+english PDF link annotation
- https://jotelek.hu/files/file/10647824018.pdfIn PDF document text
- https://legend-chang.com/UserFiles/files/2958614738.pdfIn PDF document text
- http://lammensfilip.be/uploads/files/nemosupurawoxebipipaf.pdfIn PDF document text
- http://trevelci.ru/ckfinder/userfiles/files/binatixu.pdfIn PDF document text
- http://www.playerclub.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16140be0572307---90509592820.pdfIn PDF document text
- http://chamaeleon-produktion.cz/www/files/file/7019213465.pdfIn PDF document text
- http://jfac.kr/ckfinder/userfiles/files/notusemiselaroxig.pdfIn PDF document text
- https://yunglin.com/uploadpic/files/40263345475.pdfIn PDF document text
- http://tauben-buchmeier.de/kleinberliner-schuetzen/userfiles/files/pemagaparo.pdfIn PDF document text
- http://gamax-motor.cz/data/dokumenty/46911390425.pdfIn PDF document text
- http://botosani.ro/img/uploads/file/88701801494.pdfIn PDF document text
- https://hobbyschuurtje-webwinkel.be/images/userfiles/file/tesemezumojizimaj.pdfIn PDF document text
- http://savages.lu/imagesRTE/files/5241632855.pdfIn PDF document text
- http://www.restorationservice.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161419f73bd4ee---46186060875.pdfIn PDF document text
- https://thuaphatlaihanoi.net/uploads/files/matizasux.pdfIn PDF document text
- https://getracemirates.com/userfiles/files/93279531240.pdfIn PDF document text
- http://babijie.com/upload_fck/file/2021-9-13/20210913141732858675.pdfIn PDF document text
- https://voicelux.ru/wp-content/plugins/super-forms/uploads/php/files/0481e3d41a0193b45b8923921a5dfec4/ruropulajigam.pdfIn PDF document text
- http://hydrogears.com/survey/userfiles/files/zeludosanuxel.pdfIn PDF document text
- https://mmoxx.mn/userfiles/files/20333752576.pdfIn PDF document text
- http://ashioke.com/images/library/File/54449926081.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_off0000aed0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAED0 | 18276 bytes |
SHA-256: 952106aa798f6960c970eaef74d0fe5dc9183ed406dde3054d6de82d4e1e8060 |
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font_01_sfnt_off0000ddc8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDDC8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f5df.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5DF | 10520 bytes |
SHA-256: e349a5e2f6e3d5f11c77bea63420e01e06d273c32f52c90acff91c8711ef0426 |
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