MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by multiple heuristics, including ClamAV and an ML classifier, indicating malicious content. It contains numerous embedded URLs that form a link farm, with one URL specifically containing 'hack apk' in its parameters, suggesting a lure for potentially unwanted software or phishing. The presence of PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports the malicious intent of distributing links through compromised or disposable hosting.
Machine Learning
- Nyx PDF Classifier malicious score 0.9957
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 https://infrive.ru/uplcv?utm_term=euro+truck+evolution+hack+apk PDF link annotation
- http://terremeraude.com/userfiles/file/19339894158.pdfIn PDF document text
- http://chapaconoticias.com/assets/ckfinder/core/connector/php/uploads/files/8657231310.pdfIn PDF document text
- https://theloneranger.tv/clients/loneranger/ckfinder/userfiles/files/12148469421.pdfIn PDF document text
- https://safrano.pl/userfiles/file/45652617421.pdfIn PDF document text
- https://zzwgjx.com/d/files/71960926680.pdfIn PDF document text
- https://tungafilm.com/dorceiys/ckfinder/userfiles/files/99727474487.pdfIn PDF document text
- http://telecycling.org/files/file/vijizale.pdfIn PDF document text
- http://jcpingie.be/public/files/riwezow.pdfIn PDF document text
- http://putzlappenborner.at/editor_up/85159825739.pdfIn PDF document text
- http://www.holzbau-hoelzl.at/wp-content/plugins/formcraft/file-upload/server/content/files/1614d1158b4fa5---82281808193.pdfIn PDF document text
- http://hoachathoanggia.com/userfiles/file/76444762793.pdfIn PDF document text
- http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/b0cd8e81da0eaefa5f1ac1b1b045dc41/jizosugowesi.pdfIn PDF document text
- http://goldstecq.com/userfiles/file/35574178082.pdfIn PDF document text
- http://5lovestartw.com/CKEdit/upload/files/52904569354.pdfIn PDF document text
- http://superfishinglewood.com/uploads/files/46063529911.pdfIn PDF document text
- https://mlmrockstars.com/ckfinder/userfiles/files/58388795126.pdfIn PDF document text
- http://393citizen.com/upload/files/94977212394.pdfIn PDF document text
- http://aloisiquadri.it/userfiles/files/duvurapida.pdfIn PDF document text
- https://intelean.com/wp-content/plugins/formcraft/file-upload/server/content/files/161303ed90f3e3---jemidoridimuku.pdfIn PDF document text
- http://opalbiosciences.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135c95b17bfb---23103961692.pdfIn PDF document text
- http://ngnjl.com/userfiles/files/79675565589.pdfIn PDF document text
- http://grawerlik.pl/userfiles/file/9376960725.pdfIn PDF document text
- http://nscenter.cn/upload/files/nunokiruselarekuwivojajeb.pdfIn 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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ae47.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAE47 | 10544 bytes |
SHA-256: cc218495ddfe40cbf3cd9a50ef6fe2d66b7dad8e992aeaf179bb80efc4945278 |
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font_01_sfnt_off0000c63f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC63F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000de51.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE51 | 14688 bytes |
SHA-256: 9bc0a5097acc9468d5a616eb3cf88f8b34374b3d8a7c6ae87d637ef40c1e9a93 |
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