MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains numerous external links, many pointing to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The presence of embedded URLs and the nature of the heuristics indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://pistant.ru/uplcv?utm_term=cheat+piano+tiles+3 PDF link annotation
- https://hongming-eco.com/userfiles/file/66699875089.pdfIn PDF document text
- http://funagamex.vn/PhuongNamGroup/userfiles/files/9003824079.pdfIn PDF document text
- https://lerong.vn/wp-content/plugins/super-forms/uploads/php/files/63f55f1c65d992b5d9bc8a96494efa9a/lefojebugi.pdfIn PDF document text
- http://lex.tj/img/file/15814657856.pdfIn PDF document text
- http://jtravel.clickis.kr/FileData/ckfinder/files/20210916_596099D0C93D0927.pdfIn PDF document text
- http://hanlacsclub.com/ckupload/files/witewesawiten.pdfIn PDF document text
- http://abbeytraining.net/userfiles/file/11703846194.pdfIn PDF document text
- http://socialbomjesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1614b260ee89b4---12717465047.pdfIn PDF document text
- https://museuminiaturesbesalu.com/files/puvivixozapimizo.pdfIn PDF document text
- http://www.telsercom.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141476edc008---wukolitojabuwipusal.pdfIn PDF document text
- https://villamishkan.com/310renonew/front/images/files/buriperagovemodotefij.pdfIn PDF document text
- http://polimak.pl/userfiles/file/pabidiwenuveras.pdfIn PDF document text
- http://yurisolomko.com/userfiles/file/33028107548.pdfIn PDF document text
- http://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614e271cd0df2---88793719945.pdfIn PDF document text
- https://rolcsi-bau.hu/userfiles/files/limotataxegesuxogo.pdfIn PDF document text
- https://songhongresort.com/img/files/nitotorakitepazaxipelow.pdfIn PDF document text
- https://torrentclub.vip/wp-content/plugins/super-forms/uploads/php/files/n0fsr55mg99i2hrabksp3kd56l/22619417405.pdfIn PDF document text
- http://rurisnet.org/images/file/liwezelijegatejisase.pdfIn PDF document text
- https://alzubidi.com/userfiles/files/zorutinorozudodo.pdfIn PDF document text
- https://portalkucharski.pl/app/webroot/media/files/widemitex.pdfIn PDF document text
- https://cissud.eu/uploads/ck_editor/files/8700397577.pdfIn PDF document text
- http://perseverance.cyou/updatefiles/file/4304658475.pdfIn PDF document text
- http://qdjshg.com/files/file/22317364106.pdfIn PDF document text
- http://swvocal.com/data/se2/file/2740677402.pdfIn PDF document text
- http://mebel-moscow.com/content/xuploadimages/file/danatasuvuduzoz.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_off0000b225.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB225 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ca3c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA3C | 10452 bytes |
SHA-256: b76e1bb271bc698bd4a801d5390c63b4a4732edaa08ce383a6c002cf6711bfdf |
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font_02_sfnt_off0000e1ef.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1EF | 14684 bytes |
SHA-256: 3b7fbf2ccbff7d5c498b8112b1e8cf7a3c13cf606af74e2a24e542a025b6075c |
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