MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs pointing to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The document body, though heavily obfuscated, contains metadata related to its creation by wkhtmltopdf and a title suggesting it is an answer key, likely a lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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://crewmak.ru/uplcv?utm_term=foundations+personal+finance+answer+key PDF link annotation
- https://pilotcenter.gr/wp-content/plugins/super-forms/uploads/php/files/igur1v7n51af52s1ah9hki08tq/99057241685.pdfIn PDF document text
- https://relleno-acidohialuronico.com/wp-content/plugins/super-forms/uploads/php/files/b6e768d646cd742577247c929c8f59af/gekivepeko.pdfIn PDF document text
- https://bowenpainter.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bffd082317b---36712795843.pdfIn PDF document text
- http://nuraski.pl/wsg/userfiles/lafiwuwosivol.pdfIn PDF document text
- https://pablohernandes.com/wp-content/plugins/super-forms/uploads/php/files/ded9db23049f1d4dffbc1ef408a46c42/38122656365.pdfIn PDF document text
- http://bagpack.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/1608e698b370d1---kemizituzobotopajifagipoz.pdfIn PDF document text
- http://goodwill.pl/userfiles/file/sajejo.pdfIn PDF document text
- http://northcity.rs/slike/files/kejulabageserilugabigi.pdfIn PDF document text
- http://broadviewlibrary.org/uploaded_bvlib/file/pakutibidepu.pdfIn PDF document text
- https://xn--80adj7cxa.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/05c2cc05cde1adfbd5662ea706fbc144/90899200367.pdfIn PDF document text
- http://a-kamen.com/userfiles/file/56885189135.pdfIn PDF document text
- http://abwingsva.com/uploads/files/26451630832.pdfIn PDF document text
- https://www.sir.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b444434d6a5---35645058010.pdfIn PDF document text
- https://rybczewice.pl/userfiles/file/xuporuzaz.pdfIn PDF document text
- http://irmascaritasdejesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607a230272186---febutojemerirowavokijita.pdfIn PDF document text
- https://lllk.ru/wp-content/plugins/super-forms/uploads/php/files/afe25c0da778750338e2ad88f033b934/dopobetorijiresili.pdfIn PDF document text
- https://otdelkamos.ru/wp-content/plugins/super-forms/uploads/php/files/b657d65cc209d20637f54ec7d4ad5cea/jiwotubuzadi.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00012188.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12188 | 5244 bytes |
SHA-256: 002168fad0612a6da7c1489929b900122f389332d650e6fe421cf0978ffb40d5 |
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font_01_sfnt_off0001338a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1338A | 11888 bytes |
SHA-256: 669418f537903575fefdb8caa05add9e840c883dd9dc26e9bb128ada7c0f50ae |
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font_02_sfnt_off00015b64.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15B64 | 4324 bytes |
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e |
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