MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a link farm directing to multiple compromised CMS uploads, identified by heuristics like PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware delivery via these external links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9849
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://philippinesroadshow.com/wp-content/plugins/super-forms/uploads/php/files/4440ee89962b98e5e70322142947224f/54176919583.pdf
- https://www.keystonecare.co.uk/wp-content/plugins/super-forms/uploads/php/files/d7ea6358e3b0c717bff737d87b3d8cbb/pukojenesuxikudepovuvab.pdf
- http://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609aa3b45bafe---bukuregufez.pdf
- https://atlasautoglass.com/wp-content/plugins/formcraft/file-upload/server/content/files/16070850a5ea0e---36808488143.pdf
- https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/625afa55abcc8b9167d3da7d17410d7f/33891093537.pdf
- https://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/1608ddabd6f92a---rajatatebigivutinozid.pdf
- https://www.engltg.com/wp-content/plugins/super-forms/uploads/php/files/1edb0ae69cb457331b4b6a553c063099/98737191568.pdf
- http://www.urbanwaterways.info/files/fipikadepirasuloxewu.pdf
- https://luminex.pl/upload/file/jusaxujebopixadefutuvip.pdf
- https://aashianarealty.com/file/kufujagakolomulenusu.pdf
- https://psychotherapie-dr-albrecht.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a25fce5d6cc---moluzisipipatavi.pdf
- http://abwingssuffolk2.com/uploads/files/90284895541.pdf
- https://bangvetthuong.com/luutru/files/24830427166.pdf
- http://chalappuram.com/userfiles/file/sebipagafopezu.pdf
- https://toskov-yordanov.com/userfiles/file/dunoxidezavosiji.pdf
- https://tehnol.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607fd2e750001---bedagakakenasaponu.pdf
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160973a209d0ac---79110793951.pdf
- https://adm.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/7d6419f4b99ae6dbb7ee17fff3e7cf80/79428842583.pdf
- http://nc2e.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160968f862eea1---kebap.pdf
- http://robalton.es/Albums/images/file///42230406231.pdf
- https://vashadvokat82.ru/wp-content/plugins/super-forms/uploads/php/files/d52bd8c3338105348ab8d572b762d667/98048651205.pdf
- https://bandotrading.it/uploads/file/83357044406.pdf
- https://bursakaynak.net/userfiles/file/43045238821.pdf
- http://jjmcp.jp/userfiles/Image/file/piwukekolux.pdf
- https://datatech-int.com/userfiles/file/76426695654.pdf
- http://gospel-pour-100-voix.com/fichiers/newsletter/file/gizelugunapugelizopu.pdf
- http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/251fa9fea274275dfa59f32a9ded391a/62923608233.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/FevRqgeaUVY/uplcv?utm_term=inherited+and+learned+behaviors
- 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_off0000ed03.bin1cd904031e05ce8637b6f14bd614e41feda57b09692cccbd28cabdb885b24386 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED03 | 10504 bytes |
font_01_sfnt_off000104d1.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104D1 | 16792 bytes |
font_02_sfnt_off00011ce3.bin9127240e217d592e052895a193c8131a18f1892b95ed246055fe6c179f5bb43f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11CE3 | 16416 bytes |
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