MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains multiple links to external resources hosted on compromised WordPress sites, indicating an attempt to host and distribute a malicious payload. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution. The presence of PDF_RANDOM_URL_LINK and PDF_SEO_DISPOSABLE_LINK_FARM heuristics further supports the classification of this PDF as malicious, aiming to redirect users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
Heuristics 8
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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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://www.sgestrecho.es/wp-content/plugins/formcraft/file-upload/server/content/files/160a3327f11af9---karobijifagutuvujadulol.pdf
- http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/160c1dea44727a---mapukoxex.pdf
- http://phrabat.net/UserFiles/File/42383471778.pdf
- http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/idana74ooeu6re79v9ll1smb61/65204660306.pdf
- https://prosperitas.be/data/assets/file/21180380148.pdf
- https://info-jimukyoku.jp/lot/upload/files/zasudez.pdf
- https://agilitynd.com/wp-content/plugins/super-forms/uploads/php/files/9d9a450d1921615d5be27fe2be227ac3/61989981613.pdf
- http://otoozevran.com/resimler/files/19652504714.pdf
- https://www.gml.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a83ed42da92---fiwikoji.pdf
- https://stillwaiting.org/userfiles/file/95405485604.pdf
- http://drive4smilesontario.com/clients/e/ed/ed023a0734c265ca673a92d1d81de675/File/13934537501.pdf
- http://eske.hu/wp-content/plugins/formcraft/file-upload/server/content/files/1608ce444b37ee---42174844306.pdf
- https://quatcongnghieput.com/uploads/files/xasaxafoduxe.pdf
- http://scottleddy.net/clients/862555/File/zimito.pdf
- https://vinisfarm.com/wp-content/plugins/super-forms/uploads/php/files/077d8b71da6024832af0e2bed9961af0/1352667265.pdf
- http://thehawthornnyc.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606fee8d429b3---revitalosipaxarov.pdf
- http://barrarioservicos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607a650c6a636---52204808307.pdf
- https://arerp.kr/data/file///62632580202.pdf
- https://wonkingchina.com/d/files/60939639000.pdf
- https://lashmakerpro.it/wp-content/plugins/super-forms/uploads/php/files/gihch13k0cuq2g33jsg7hgt1a7/kuvomabogezemer.pdf
- http://www.movingintofreedom.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b220b5bd8ef---90246716777.pdf
- https://drmarlenebothma.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc7b230464---3601952739.pdf
- https://amartzon.store/wp-content/plugins/super-forms/uploads/php/files/d60dee4619ea225aba23321d5f26ff5c/67987489834.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=new+york+trivia+questions+and+answers
- 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_off0000d894.binf93350c8be2797af15a72dd259b548acdecf6489fbba6809feb906082d4d5b26 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD894 | 17476 bytes |
font_01_sfnt_off0001060f.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1060F | 16792 bytes |
font_02_sfnt_off00011e26.bin5ef216d96694c6f83ecbb71f93cbac2dd7102ed3948b9c861818da1bc170cf3c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E26 | 10776 bytes |
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