MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous external URIs and link farm patterns, indicating a likely attempt to redirect users to malicious websites. ClamAV detection and ML classification strongly suggest malicious intent, specifically identified as a phishing trojan. While no scripts were directly extracted, the PDF structure and embedded links are indicative of a spearphishing attachment designed to lead victims to compromised or disposable hosting sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://cructi.ru/uplcv?utm_term=xp+pro+sp3+iso PDF link annotation
- https://gz-topstar.com/wp-content/plugins/super-forms/uploads/php/files/97159fb5b19d15e2bda009f1a10bceed/94433755632.pdfIn PDF document text
- http://mazdooradda.com/userfiles/file/jikefudipuvexifuxuvatusa.pdfIn PDF document text
- https://qamarapps.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c2d5bbac518---6992002577.pdfIn PDF document text
- http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/16098596352252---90860586587.pdfIn PDF document text
- http://fresh-j.info/images/uploadedimages/file/88136104060.pdfIn PDF document text
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b21586748cb.pdfIn PDF document text
- https://noihoithanhtuan.com/media/ftp/file/8532147164.pdfIn PDF document text
- http://thepnguyentran.com/media/ftp/file/vewod.pdfIn PDF document text
- http://webscape.co.bw/wp-content/plugins/formcraft/file-upload/server/content/files/160b3115959871---lotekisidotepeluvabu.pdfIn PDF document text
- https://btsmstlucia.com/atomicsteps/upload/userfiles/file/nuloluluval.pdfIn PDF document text
- https://advancedcheckcashadvance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0c35ca0568---zavisebosi.pdfIn PDF document text
- https://isabellepieman.com/userfiles/file/juxufuzefabo.pdfIn PDF document text
- http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/k6c8ssg7ukrdcss4t0ipo323e1/juselimemixukatapamev.pdfIn PDF document text
- https://www.higher-energy-trampolineclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c89c9572512---1356147022.pdfIn PDF document text
- http://gaskinfamilyreunion.com/clients/b/b7/b798c9f9e2af69c3a5b950a06e4ade8e/File/31254337587.pdfIn PDF document text
- http://singer-island-condos.com/userfiles/files/1006442263.pdfIn PDF document text
- http://ehomeforeclosure.org/images/file/57526588830.pdfIn PDF document text
- http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160862130bf08b---suzejupefelijuwi.pdfIn PDF document text
- http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/160bf979a53501---10834792993.pdfIn PDF document text
- http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/c2ab7df45eac7a7ae8fd92a58c980241/jupiw.pdfIn PDF document text
- https://acronimocostanzo.com/userfiles/file/38093454372.pdfIn PDF document text
- https://www.cpro.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16071a68cecdec---bexobazom.pdfIn PDF document text
- http://copy2d.com/ftp/image/file/tezazovemipavupefevi.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_off00010987.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10987 | 17772 bytes |
SHA-256: e31e1930525188daccf3b6d6740fee4ff94fbc3e805b96ef3a8b0990ff1ce68d |
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font_01_sfnt_off0001383d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1383D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00015053.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15053 | 9880 bytes |
SHA-256: 9156ff3431eebdf654231aa0127f6a16f67ca052399e6d7bd7f6d8599b5d2d83 |
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