MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It functions as a link farm, directing users to multiple compromised websites and disposable hosting, likely for phishing or malware distribution. The presence of numerous unknown URLs and the 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic strongly support this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9880
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://vakukh.ru/wp-content/plugins/super-forms/uploads/php/files/5e1efdf9f65569224fe13942de0533f6/61390213819.pdf In PDF document text
- http://verkoop-je-wagen.be/wp-content/plugins/formcraft/file-upload/server/content/files/160adec03590a9---rixarejepukes.pdfIn PDF document text
- http://amirafouad.com/uploaded_files/file/tamexizij.pdfIn PDF document text
- http://orgue-chantepie.info/FCKeditor/upload/file/lazuwuvoniwonodima.pdfIn PDF document text
- http://www.viksexteriors.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f9f183b902---vefemozu.pdfIn PDF document text
- https://www.c2commercial.com/wp-content/plugins/super-forms/uploads/php/files/85c8f2e1ed0dfef0a512640360cb4590/konelo.pdfIn PDF document text
- https://alfa-pechati.ru/wp-content/plugins/super-forms/uploads/php/files/64c0131393233af54ad8551127ee2f71/95989897593.pdfIn PDF document text
- http://goodwill.pl/userfiles/file/jarokowubejes.pdfIn PDF document text
- https://biothiennam.com/media/ftp/file/6046031885.pdfIn PDF document text
- https://inchirieriavioane.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16085872b75921---99640573534.pdfIn PDF document text
- https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/ubej1t3qui0r9vdeuprfg3rdc0/bovepobikekojezuwege.pdfIn PDF document text
- https://www.caesarstravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a169f37bcb---damuxurirup.pdfIn PDF document text
- http://jkohut.pl/file/rixofuregopowu.pdfIn PDF document text
- http://www.hkwebdesign.com.hk/wp-content/plugins/formcraft/file-upload/server/content/files/1607c5f208f5ab---33570461501.pdfIn PDF document text
- http://bhk-aindling.com/userfiles/files/63602931798.pdfIn PDF document text
- http://verkoop-je-wagen.be/wp-content/plugins/formcraft/file-upload/server/content/files/1609ea195d07e4---nekenunakegixuzujuke.pdfIn PDF document text
- http://otvorene-srdce.sk/userfiles/file/86744279548.pdfIn PDF document text
- http://allaboutdowney.com/userimages/fonogebapezesifaxaladuz.pdfIn PDF document text
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607836218054b.pdfIn PDF document text
- http://www.inhd.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b8b8be2463b---vofupag.pdfIn PDF document text
- https://hsegroup.ru/wp-content/plugins/super-forms/uploads/php/files/hjjgbjphqdimd8sq1r6uumkgn7/11149903149.pdfIn PDF document text
- http://narcisse.sk/editor_uploads/files/womanadugeralos.pdfIn PDF document text
- http://giustizianuova.it/userfiles/file/nonoguxegavabemabakifawoz.pdfIn PDF document text
- http://www.communityheroesproject.org/wp-content/plugins/formcraft/file-upload/server/content/files/160c8ed28ebe04---24020221028.pdfIn PDF document text
- http://bhk-aindling.com/userfiles/files/26399360218.pdfIn PDF document text
- https://ost-fogging.com/upload/files/66766930086.pdfIn PDF document text
- http://vipavtoufa.ru/wp-content/plugins/super-forms/uploads/php/files/ee7f0e1ca0e2991f836524a65223b58b/fuzanirejukonadememezapef.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=project+x+online+streamPDF 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_off0000fd01.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD01 | 10624 bytes |
SHA-256: 2ff34adf1e079c3610aa56ad20627286bbc195b83b62579fa9d8f89a76fbe712 |
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font_01_sfnt_off00011548.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11548 | 17008 bytes |
SHA-256: 2941b497850c4d7ec31bda95c8f4712d3d554f05f7ae2c0ab0722cc33162641a |
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font_02_sfnt_off00014194.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14194 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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