MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links, many pointing to compromised WordPress upload directories, suggesting a link farm used for phishing or malware distribution. The document body is heavily obfuscated and unreadable, providing no direct clues to its purpose beyond the embedded URLs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9987
Heuristics 6
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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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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://action-roofing.com/wp-content/plugins/super-forms/uploads/php/files/da2616a5e9836853b002c12433d2a7c3/58278031221.pdf
- http://bhavalaya.org/ckfinder/userfiles/files/74398394490.pdf
- https://www.nestroots.com/wp-content/plugins/super-forms/uploads/php/files/34s2m3vf78nilu0pcurdakk3e5/mufasibuviwijabexebev.pdf
- http://rauvuonsach.net/images/uploads/files/48599872971.pdf
- https://sanruouvang.net/images/uploaded/file/74460827763.pdf
- https://renesens21.com/ressources/upload/files/15485475038.pdf
- http://royalproductsonline.com/userfiles/file/18465644680.pdf
- http://lycee-elm.info/userfiles/file/rebexaremifisajuvafow.pdf
- https://parisautotravel.com/wp-content/plugins/super-forms/uploads/php/files/op7amndm5uiaatf4tqh68riht0/3912582171.pdf
- https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a940172ddab---11261798353.pdf
- http://richmore.kr/uploadfile/fckeditor/file/xewudobuxi.pdf
- https://refundsrefunds.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609cf1fa42872---42817943514.pdf
- http://anhopphat.com/uploads/files/buxinewazujobixifenino.pdf
- https://vestol.bg/files/file/60664596195.pdf
- http://www.injamal.es/nueva/ckfinder/userfiles/files/20522794358.pdf
- http://elcampoeco.org/FCKeditor/file/donim.pdf
- http://forter.vn/hinhanh/file/puwalexotab.pdf
- http://stsaischoolamritsar.com/slbdavbatala/userfiles/file/36124865105.pdf
- https://rmp-familienanzeigen.de/cms/files/kobanolanukubis.pdf
- http://vasvaripalmuzeum.hu/upload/file/nilijapexofew.pdf
- http://debnine.net/UserFiles/File/32620707701.pdf
- http://drthchowdary.net/userfiles/file/fezadenezebowumikiso.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/GLLx1DTH0VQ/uplcv?utm_term=libro+de+ingl%C3%A9s+3+de+secundaria+contestado+2020
- 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_off0000ead7.bin747dbd0882778872022977cd300e58f6c2f0d19068669d6ead2bd808b5c29033 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEAD7 | 11308 bytes |
font_01_sfnt_off00010517.bina270138313eedaafcb4d13849a039da53a270643a821227ce47cdede3a52d8ba |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10517 | 17340 bytes |
font_02_sfnt_off000130b6.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x130B6 | 16792 bytes |
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