MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains numerous links, many pointing to compromised WordPress upload directories or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The presence of external URIs and link farm heuristics indicates an attempt to lure users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.7099
Heuristics 5
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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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External URI info PDF_URIPDF contains an external URL action
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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.ecvbrass.ch/user/web/file/wexababiboji.pdf In PDF document text
- https://polandpools.com/contents/files/linofotizaputoru.pdfIn PDF document text
- https://pabausa.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613eae2dacc57---tetapudoge.pdfIn PDF document text
- http://webspace.mysdam.net/images/newsletter/files/duvuvewisokowasura.pdfIn PDF document text
- http://jessie.vn/images/ckeditor/files/naxadoxenirofebexafatoxa.pdfIn PDF document text
- http://velomagazin.hu/UserFiles/file/17396523502.pdfIn PDF document text
- https://dursunguney.com/userfiles/files/nevex.pdfIn PDF document text
- https://ozanetiket.com/TasarimAcarnet/serhali/upload/files/dufirifif.pdfIn PDF document text
- http://srihemkuntsahibfgp.org/hemkunt/userfiles/file/gidowaxojuwopurisetezaf.pdfIn PDF document text
- https://taipeitccia.org/CKEdit/upload/files/xipeditogevo.pdfIn PDF document text
- http://borik.customreal.sk/data/files/45963516008.pdfIn PDF document text
- http://ahdjcm.com/upload/files/40494542561.pdfIn PDF document text
- http://splhardware.com/UploadFile/file/2021090909210373499.pdfIn PDF document text
- http://xn--o39a91gvwm83kbsn.net/FileData/ckfinder/files/20210902_B1383D486C1B0D0F.pdfIn PDF document text
- https://pixel.bg/img/file/kofot.pdfIn PDF document text
- https://schreinerheusi.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613c0c25ebf53---pawemegutizivekadegix.pdfIn PDF document text
- https://ibextrail.com/editor-images/pidegufapezujexitibudaxon.pdfIn PDF document text
- http://zamokugrofa.sk/admin/fckeditor/file/83809239450.pdfIn PDF document text
- https://xn--b8qxb801j.tw/upload/files/59058034796.pdfIn PDF document text
- http://www.deadclan.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613a6cbe5f23f---64368411298.pdfIn PDF document text
- http://skyrybupaslaugos.lt/uploads/files/89775609892.pdfIn PDF document text
- https://webbsoil.com/home/webb/public_html/ckfinder/userfiles/files/9391182281.pdfIn PDF document text
- http://lawyermo.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/76635069219.pdfIn PDF document text
- http://yuli-china.ru/d/files/82168827229.pdfIn PDF document text
- https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16141a6d624deb---35391921258.pdfIn PDF document text
- https://sg-design.top/wp-content/plugins/super-forms/uploads/php/files/248902b5c749a5aa5bfdbedcd8783316/53066161701.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=jesus+emoji+copy+and+pastePDF link annotation
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d7e9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7E9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f000.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF000 | 10864 bytes |
SHA-256: 89522949f9761bc79ea484678d3ad32c77ab3957950bb2a5f240ef7b59ac6c93 |
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