MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links, many pointing to compromised WordPress upload storage and other disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of a 'download button' heuristic further supports the lure-based attack pattern. Although no scripts were explicitly extracted, the PDF structure and link farm heuristics strongly suggest it's part of a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9860
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://yuemeism.com/uploadfiles/files/91779537521.pdf
- https://camile.vn/wp-content/plugins/super-forms/uploads/php/files/ks6urj64ekaappdup07oevh485/66594747969.pdf
- http://pijntherapie.be/uploads/files/gogozut.pdf
- http://geredekombiservisi.com/userfiles/file/69803728099.pdf
- http://mijinmotor.com/fckeditor/userfiles/file/detilomod.pdf
- https://korzayithalat.com/spot/admin/fckeditor/userfiles/file/96444031989.pdf
- http://immobiliareborghi.com/userfiles/files/97114561839.pdf
- http://itcbeautytrainingschool.com/userfiles/file/bijajozovak.pdf
- http://taixingchem.com/uploadfile/file/20210914175807289.pdf
- https://satnamunicipalcorporation.com/admin/ckfinder/userfiles/files/jifujumetawujegoduj.pdf
- https://volandovia.it/public/fileeditor/file/sugegelopuvakibexixiw.pdf
- http://studiovalentini.eu/userfiles/files/zewojax.pdf
- http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/1613a84d09fd26---70735670328.pdf
- http://de.ruben.pl/ckfinder/userfiles/files/5592588828.pdf
- https://www.projectorrentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613fdc38b10d0---50377570984.pdf
- https://resulgame.com/calisma2/files/uploads/50321435783.pdf
- http://www.weilandensemble.nl/ckfinder/userfiles/files/tipip.pdf
- http://popeyebio.com/upload/files/mopoko.pdf
- http://torby.kbo.pl/ckfinder/userfiles/files/82143034281.pdf
- http://sun-green.nl/ckfinder/userfiles/files/12415029183.pdf
- http://sarkanyhajo.hu/files/file/26583456551.pdf
- https://highfieldhousehotel.net/nbloom/fckuploads/file/zisepipijewo.pdf
- https://k-barrierfree.com/FileData/ckfinder/files/20210904_DFD404712450D083.pdf
- https://rwd1.thadv.com/upload/files/93183342464.pdf
- http://sualpturizm.com/userfiles/file/bafewujo.pdf
- http://instant-image.net/UserFiles/Site/File/86943166517.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=essential+grammar+in+use+4th+edition+pdf+download+free
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e6ae.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE6AE | 16792 bytes |
font_01_sfnt_off0000fec5.binb3e6a5476cd40a7d3b76a6ac9e3c8368fbed41b7c271868ca0f7690edd5b1218 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFEC5 | 11192 bytes |
font_02_sfnt_off000118ae.bin06164d92641b96689abd21b35686f15fb72361efdc8f650c83dbba3ba3e0e90e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118AE | 18176 bytes |
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