MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
The sample was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, directing users to multiple compromised CMS upload storage locations and disposable hosting sites. This pattern suggests an attempt to distribute phishing content or further malware payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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 http://zrdb-drogbud.pl/Upload/file/14770817067.pdf
- https://haps.company/wp-content/plugins/super-forms/uploads/php/files/as77etim7hn5gejmei4h4af0c4/65480783758.pdf
- http://www.grundys.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160979d545859b---remixofila.pdf
- http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607c29bee48c0---duwukefe.pdf
- https://vakukh.ru/wp-content/plugins/super-forms/uploads/php/files/ff385eec965288d1c9a12dfda77eadc9/65619861766.pdf
- http://bartuceviri.com/userfiles/file/34881835236.pdf
- http://wrtour.com/FileData/ckfinder/files/20210531_809C5F46741E1E10.pdf
- https://esteticarcare.com/wp-content/plugins/super-forms/uploads/php/files/5d990dfd1b268d5e0f025a2d0cf97fc0/86424962543.pdf
- https://socialchangefactory.org/wp-content/plugins/super-forms/uploads/php/files/b50fb044451dd7f69663b7233ffdedf7/gakasawezejikidoxoleju.pdf
- http://kystop.com/wp-content/plugins/super-forms/uploads/php/files/lgpqqq2kb2saej3jgbgs55c227/29689059634.pdf
- http://kurier48.pl/files/userfiles/file/1626205328.pdf
- https://magatek.com/documents/file/74200678376.pdf
- https://www.okcfarmersmarket.com/wp-content/plugins/super-forms/uploads/php/files/9e86e0eb6a4f11d0b51afc97ccca4335/70566428188.pdf
- http://delawaretravelmedicine.com/wp-content/plugins/formcraft/file-upload/server/content/files/160732e1ed3890---61503840790.pdf
- https://swimproject.eu/wp-content/plugins/super-forms/uploads/php/files/dbc3dfd674db06c8b9e1b51592c0724b/zulunijilositovexuda.pdf
- http://www.zav-mito.si/wp-content/plugins/formcraft/file-upload/server/content/files/160865453b8b46---mojosizev.pdf
- http://afghansolar.com/userfiles/file/befujoguneginila.pdf
- https://limpjet.com.br/wp-content/plugins/super-forms/uploads/php/files/52e147ae1505b148221ac438ce7a9d4a/45397017544.pdf
- http://jyjwqj.com/uploadfile/file///2021060511505530.pdf
- https://www.ibyservice.com/wp-content/plugins/super-forms/uploads/php/files/c20e2964f5f491c6c8b6a9036557fafa/fipagizameworipipakunaw.pdf
- http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c2aa276357b---keregeravexovagap.pdf
- http://timebank.ru/sites/default/files/photos/pagefile/81853145717.pdf
- http://frederickfollows.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b4f2d3af5f8---rurarepareribovavetapeko.pdf
- https://kindliving.org/wp-content/plugins/super-forms/uploads/php/files/tmp/18444648910.pdf
- http://ekolojikweb.net/upld/userfiles/file/vanopabumevesenuzewufob.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=ripening+of+fruits+is+a
- 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_off0000f963.bin7a710089d02a26b1b5f1d2ace39151a0e4d44898c9dbe8a8beee5586604d90c5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF963 | 10632 bytes |
font_01_sfnt_off000111da.bin0ab55cf44bae5095d58d6d116a49c5056f65619efe1073c556dc41c26fe29c40 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111DA | 18280 bytes |
font_02_sfnt_off000141ff.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x141FF | 16792 bytes |
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