MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a significant number of external URIs, many of which point to compromised CMS uploads or disposable hosting, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://pistant.ru/uplcv?utm_term=zombie+tsunami+cracked+apk PDF link annotation
- https://bisnismedsos.com/userfiles/file/suwifumogupewubekopig.pdfIn PDF document text
- https://xn--bankkrtya-41a.hu/js/ckfinder/userfiles/files/pivulolon.pdfIn PDF document text
- http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/1613718ed2ad63---welakifujizasamorifid.pdfIn PDF document text
- http://brenna-ski.pl/userfiles/file/77829232845.pdfIn PDF document text
- http://bawaconstructions.com/editorData/file/89512367029.pdfIn PDF document text
- http://arsvet.ru/img/upload/9099363796.pdfIn PDF document text
- http://landpas.pl/upload/file/xebawosuzikige.pdfIn PDF document text
- https://magazinul-de-instalatii-sanitare.ro/app/webroot/files/userfiles/files/gojenev.pdfIn PDF document text
- http://footstepfloor.com/upfiles/files/79564955108.pdfIn PDF document text
- https://pharmawell.eu/ckfinder/userfiles/files/3541577048.pdfIn PDF document text
- http://seritour.com/rsm/files/5596777598.pdfIn PDF document text
- http://charivne.info/images/file/beduwewenujaserawetibum.pdfIn PDF document text
- https://immsac.pe/sgi_userfiles/userfiles/files/15050577212.pdfIn PDF document text
- https://cabsfromheathrow.com/userfiles/file/wumoziteluxib.pdfIn PDF document text
- http://www.impactit.in/ckfinder/userfiles/files/liwabegopub.pdfIn PDF document text
- https://www.penyembuhanholistikreiki.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132fad523755---vinefoxukopuruxow.pdfIn PDF document text
- http://absolutelyneon.com/userfiles/file/tupebogebir.pdfIn PDF document text
- https://greenlandpark.com/uploads/files/11314568686.pdfIn PDF document text
- http://xn----itbbfrdrdbd4bgy6gi.xn--p1ai/webroot/files/files/dasigiv.pdfIn PDF document text
- http://ichieh.tw/uploads/files/202109160913492622.pdfIn PDF document text
- https://piphoto.tw/uploads/files/202109101533038409.pdfIn PDF document text
- http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142366579616---76713415156.pdfIn PDF document text
- http://caacoding.net/wp-content/plugins/formcraft/file-upload/server/content/files/16132d2956def0---talobanemezatox.pdfIn PDF document text
- http://www.oomewatersport.nl/upload/files/vamev.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_off0000da01.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA01 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f213.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF213 | 18152 bytes |
SHA-256: 228dcb3c5b0d69ea13956f0c9c453e7767f9d159a3371a6622882763fa02163d |
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font_02_sfnt_off00012164.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12164 | 10924 bytes |
SHA-256: f3a123a52ab348ad5d659b33128996661ab0c8cd1c071829be923b9769f2825a |
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