MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of external URIs and links to compromised CMS uploads, indicating it functions as a link farm. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or distributing further malware. The document body is unreadable, but the heuristics point to a malicious link distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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://queure.ru/uplcv?utm_term=how+to+silence+a+kidde+smoke+alarm
- http://www.icodar.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab18501de6f---rezunakomugevalezanibit.pdf
- https://infiniteprospects.com/FCKeditor/file/xagesodigito.pdf
- https://newsru.md/upload/userfiles/files/dabejasusibevamenigozufel.pdf
- https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/1608174a02ef2a---lililapaju.pdf
- https://traveltokiev.com/wp-content/plugins/super-forms/uploads/php/files/asgg9vd7rasqnaer9fqg5prhh1/36420221587.pdf
- http://thermogroup.ru/uploads/files/xoporep.pdf
- http://ya-ke.cn/admin/upload/47513338151.pdf
- https://fieldofgreen.com/wp-content/plugins/super-forms/uploads/php/files/ca9e34df595962837c859eed611e13eb/94852244361.pdf
- https://hosvagyok.hu/userfiles/file/35733388780.pdf
- http://www.jamesbgriffinlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091e20886e57---kowulowomes.pdf
- http://la-roofers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160891b73661d8---gukudadobi.pdf
- http://sns.hu/_user/file/52942221340.pdf
- http://kazenergy.kz/wp-content/plugins/formcraft/file-upload/server/content/files/160820d8b879d4---32092182520.pdf
- http://kinocosmik.ru/sadm_files/77623227579.pdf
- http://www.bewegeninarnhem.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a636db8630e---52812057109.pdf
- http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/1608d5ef6ae137---42033513308.pdf
- http://timelessmebel.ru/wp-content/plugins/super-forms/uploads/php/files/fdd4587e921f3f10234f540a866a2676/54971900621.pdf
- http://cck-brno.cz/ckfinder/userfiles/files/57883659681.pdf
- http://drive4smilesquebec.ca/clients/f/f5/f58105ca183540932673f5bf18e62671/File/duxitunosemebenuloki.pdf
- https://lightspec.com/wp-content/plugins/super-forms/uploads/php/files/9937e22d991416e111ad1ab692f5c695/xiwameluvamigugidapa.pdf
- 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_off0000e431.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE431 | 16792 bytes |
font_01_sfnt_off0000fc43.binb5475fa8ecb483d0fd6751c56c8dbfe0a631b0bfe764c53ed92e20b764b842a1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC43 | 17304 bytes |
font_02_sfnt_off0001293a.bine1232bfd987a189ee1f6148f383c46e077c475d5484680e27dfcd0a269f07a0b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1293A | 10700 bytes |
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