MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as Pdf.Phishing.Trojan. The document contains numerous embedded URLs that point to compromised WordPress sites and disposable domains, suggesting it functions as a link farm. These links are likely intended to redirect users to phishing pages or download further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
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://philabc.ru/uplcv?utm_term=ncert+7th+class+science+question+answer
- https://hse.tw/upload/file/58744604622.pdf
- https://kolodezrus.ru/wp-content/plugins/super-forms/uploads/php/files/ccf85b3d0871fef5f865b4559069b1a3/popasadonajedakaz.pdf
- http://www.unidacardoso.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16082615f066aa---vuxogepiri.pdf
- https://promocionesnma.com/wp-content/plugins/super-forms/uploads/php/files/2838bc39d899b048a12ec6ac04e6733c/wifibuzonodujojika.pdf
- http://aliglobshop.com/userfiles/file/27323390697.pdf
- https://useoneconvo.com/wp-content/plugins/super-forms/uploads/php/files/a5bcc6fc0271bfd9966420ae59f59ae0/nudagowetojeluliwexura.pdf
- https://xn----8sbaavnccwq4am.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/8cba395285549024dfa07b738a8cb9ff/sifuxanukedowufas.pdf
- http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/160c93849c7188---jevupevuxesugamolu.pdf
- http://theydeserveastamp.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609f778a6e2a3---92835266443.pdf
- https://narimasu-chintai.net/jcfiles/file/68615702463.pdf
- http://miele-service-center.ru/uploads/files/63380690643.pdf
- http://plenar.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1606f053238ead---desotarevebijifezamikana.pdf
- https://www.cfo-search.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b137d90433b---439155387.pdf
- http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/160bc0f1371472---lugikuj.pdf
- http://bergfin.se/wp-content/plugins/formcraft/file-upload/server/content/files/160722e625a3da---80138492734.pdf
- http://cargo3030.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607b2c3d2fb9a---56083826023.pdf
- http://ekotop.eu/userfiles/file/sunetexejisibubedajibulip.pdf
- https://www.auditek.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160c84cf1b9512---wuvajevokazaladurivarotov.pdf
- http://truthtube.com/UserFiles/file/mowujubaf.pdf
- http://amoy-art.com/Upload/file/gofifu.pdf
- http://www.nisbd.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077afc64021a---73022798291.pdf
- http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a68bb7b6e19---nebavi.pdf
- https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/086ec505130f234085d534917f2e0aea/92091186320.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_off0000f8b2.bin85dab649511bf54d5942b79c1d594b14cbe24b8a274f5fb6688ca556beae54c4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8B2 | 16496 bytes |
font_01_sfnt_off00012327.bin14da9435dfc39a67523d7e442ef954b597d9e83e594eb5cda959d4eaf0364447 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12327 | 10688 bytes |
font_02_sfnt_off00013bbd.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13BBD | 16792 bytes |
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