MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file identified as malicious by ClamAV and an ML classifier. It contains embedded JavaScript and a significant number of external URIs, many of which point to compromised WordPress sites or disposable hosting, forming a link farm. The embedded JavaScript likely serves to facilitate the redirection or further malicious actions.
Machine Learning
- Nyx PDF Classifier malicious score 0.9971
Heuristics 7
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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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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 http://pngroup.pl/ckfinder/userfiles/files/46601077457.pdf In PDF document text
- http://lmnn.ru/userfiles/file/vafaveluxaropu.pdfIn PDF document text
- https://tkpmission.org/wp-content/plugins/formcraft/file-upload/server/content/files/16131b2d404cfd---86836878128.pdfIn PDF document text
- http://195exim.com/datas/files/19880937899.pdfIn PDF document text
- https://xn-----6kcabagcgfjsxjciriy6alkh6a7aqk.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/af7ad828ffc1608368b9109a18cde23a/robilup.pdfIn PDF document text
- http://farmandari-sarvestan.ir/images/news/files/68593451518.pdfIn PDF document text
- https://leunamgroup.com/wp-content/plugins/super-forms/uploads/php/files/73c67c70bff9ddcf401e688f8f0eda4b/sabigibisozunazojasuf.pdfIn PDF document text
- http://videocycling.info/files/file/woxusixutiwafus.pdfIn PDF document text
- https://mimpishiodua.com/contents/files/guzovopi.pdfIn PDF document text
- http://foxhill101.com/userimages/fozibarajelobukezijofef.pdfIn PDF document text
- https://ancoraeducacion.com/images/xevoxisupujibejujusew.pdfIn PDF document text
- http://www.libroparlatolions.it/backoffice/ckfinder/userfiles/files/kupavurup.pdfIn PDF document text
- https://10fci.org/userfiles/file/58651935036.pdfIn PDF document text
- https://floraplant.gr/FCKeditor/userimages/file/dijutamefedixa.pdfIn PDF document text
- https://bookmyexcellence.com/bookmyexcellence/js/ckfinder/userfiles/files/karuguso.pdfIn PDF document text
- https://wolfgang-photography.com/userfiles/files/nopupuvovelamiriwom.pdfIn PDF document text
- https://ismet.com.br/ckfinder/userfiles/files/69661951425.pdfIn PDF document text
- http://vipnjl.com/userfiles/files/70388012090.pdfIn PDF document text
- http://umartravel.com/files/nojepixu.pdfIn PDF document text
- http://cheniou.handysociality.com/upload/files/bolazogilawixejonoparadu.pdfIn PDF document text
- http://isspskola.lv/userfiles/files/97827871774.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=mutants+genetic+gladiators+hack+apkPDF link annotation
- 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_off0000c22f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC22F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000da46.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA46 | 10976 bytes |
SHA-256: 45b4114aa985ce64a810009a50c71870aed45e458bf6ebc67fc9be971048f18e |
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font_02_sfnt_off0000f372.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF372 | 16072 bytes |
SHA-256: 928d0c59df2a72c6fa991081feb405966c420c2af09dde0175d9719ec754e660 |
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