MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF was detected as malicious by ML classifiers and ClamAV, indicating it likely exploits a vulnerability or contains malicious content. The heuristics reveal it acts as a link farm, directing users to compromised WordPress sites hosting further PDF files, such as http://104.156.58.56/~web2inbox/wp-content/plugins/formcraft/file-upload/server/content/files/1607fb89e76b5b---5965342597.pdf. This suggests a phishing or credential harvesting attempt by luring users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
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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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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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 http://104.156.58.56/~web2inbox/wp-content/plugins/formcraft/file-upload/server/content/files/1607fb89e76b5b---5965342597.pdf PDF link annotation
- https://myhoorayhealth.com/wp-content/plugins/super-forms/uploads/php/files/qnoeggn68mf51b4t73ur5sobi3/53449825144.pdfIn PDF document text
- https://www.hungryalex.com/wp-content/plugins/super-forms/uploads/php/files/gc2jja34rvgco8bfdmjqhg70jj/36430695671.pdfIn PDF document text
- http://sy-smile.com/upload/files/kuzuvid.pdfIn PDF document text
- http://www.misshandicap.ch/wp-content/plugins/formcraft/file-upload/server/content/files/16073a9731eaee---97692853013.pdfIn PDF document text
- http://www.lbf-cosmetics.com/website/wp-content/plugins/formcraft/file-upload/server/content/files/160852de6e124c---ximirekumamugugomi.pdfIn PDF document text
- https://grand-forge.ru/wp-content/plugins/super-forms/uploads/php/files/32743373a806b5c8202846cc8b516034/lagamolowuxulev.pdfIn PDF document text
- https://mosoptagro.ru/wp-content/plugins/super-forms/uploads/php/files/2bfe6a2554205fcfb3a6d6db08b8e68b/poxuretofedebelifedumezo.pdfIn PDF document text
- http://atenngo.com/admin/sites/site/documents/74047925090.pdfIn PDF document text
- https://him-home.ru/wp-content/plugins/super-forms/uploads/php/files/f661bb4acf926b607b98e673ab0d65be/tokudurasunezigipiwat.pdfIn PDF document text
- http://csc0898.com/userfiles/file/20210621232603_tk3dxr.pdfIn PDF document text
- http://www.majorisinvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c17faf86b1b---25474767011.pdfIn PDF document text
- https://autoschiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c9005482bf6---zerowidudij.pdfIn PDF document text
- http://sneedfamilyct.com/clients/44919/File/12147408842.pdfIn PDF document text
- https://mandalaconfeccao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608fde07483e7---pejapekezudelidugibuxifi.pdfIn PDF document text
- http://cybernet.asia/UserFiles/File/wojozavoxomuxevo.pdfIn PDF document text
- http://ukicda.com/admin/fckeditor_upfiles/file/2021062106242380554.pdfIn PDF document text
- http://africansafaris-spain.com/FCKeditor/editor/filemanager/connectors/php/connector.php?Command=FileUpload&Type=File&CurrentFolder=%2Ffile/89345818214.pdfIn PDF document text
- https://wscnaturalhealings.com/wp-content/plugins/super-forms/uploads/php/files/f3a9a958635e20b2d66ed00f33c3eeca/pavasowewazujabuxadimire.pdfIn PDF document text
- https://stmarys-perthamboy.com/upload/File/dejemekizar.pdfIn PDF document text
- https://vakukh.ru/wp-content/plugins/super-forms/uploads/php/files/7899705d9874a807149ce792b68cae6e/lesevojeme.pdfIn PDF document text
- http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a067205bd42---kamudurumosenomerinijejur.pdfIn PDF document text
- http://gps-ambroisie.com/ressource/site-image/files/95325335721.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=how+to+prevent+copy+paste+in+pdfPDF 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_off000101ed.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101ED | 18332 bytes |
SHA-256: 01136d5c359310cb7d6ab0c86ade18f936de3d5b90e443ec6d29c73fd09390e5 |
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font_01_sfnt_off00013279.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13279 | 10824 bytes |
SHA-256: 69b638a72b7eb0e41a75274ed56c90a1f52249098adb02239f4382df4fe4a6fc |
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font_02_sfnt_off00014ba5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14BA5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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