MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF file flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains numerous links, many pointing to compromised WordPress upload directories and other potentially malicious domains, suggesting a link farm designed to redirect users to malicious content. The PDF structure itself appears to be a lure, possibly for phishing or to deliver a second-stage payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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 http://bezagsecurity.cz/userfiles/44468530079.pdf In PDF document text
- http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/b77842c4b4eb0a4f4d8d215d5f54ec96/94348233525.pdfIn PDF document text
- https://shopabrang.com/images/files/78361235171.pdfIn PDF document text
- https://www.superioreagle.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074122940f57---62655199842.pdfIn PDF document text
- https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/d7fe60f18d37e73300d1d7c3d2c03df8/mawobidavu.pdfIn PDF document text
- http://sva-jeanroze.com/xmedia/file/temujarojafo.pdfIn PDF document text
- http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/1608eb87fc20e4---99853549128.pdfIn PDF document text
- https://krimgranit.ru/wp-content/plugins/super-forms/uploads/php/files/33fb0ad06e70f9a47c0db13832893381/puwag.pdfIn PDF document text
- https://paloaltospeakerseries.com/wp-content/plugins/super-forms/uploads/php/files/6b1a98ea0de134c4d7a1ae09aabb9bee/63074767361.pdfIn PDF document text
- http://www.gradur.ba/wp-content/plugins/formcraft/file-upload/server/content/files/160887d552aa29---98326788986.pdfIn PDF document text
- https://cicadit.ro/UserFiles/file/58804869121.pdfIn PDF document text
- http://nhuaduongnhapkhauaz.com/upload/files/82304119276.pdfIn PDF document text
- http://totalfinance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1606d25a7f3d79---jowekikanenebuxalu.pdfIn PDF document text
- https://lea-inc.com/wp-content/plugins/super-forms/uploads/php/files/10031875f19a75c4d4a5923a58e5d548/32710798647.pdfIn PDF document text
- https://egyptsuntours.com/userfiles/files/kopikekemupanuradetopi.pdfIn PDF document text
- http://exactblue.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bfb24eae112---zarekonatofuvikobakebe.pdfIn PDF document text
- http://99hospitalitygroup.com/ckfinder/userfiles/files/mugesutewurabajad.pdfIn PDF document text
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160ada8171d870---roxapinabizuzuwisuwedosa.pdfIn PDF document text
- https://gionggiacam.com/ckfinder/userfiles/files/7261464829.pdfIn PDF document text
- http://ingpoggi.eu/userfiles/files/jepiposimibibotusesoraso.pdfIn PDF document text
- http://nzmbc1611.com/clients/e/e6/e6eb4f38db7021b04b945082fca6026d/File/8437360965.pdfIn PDF document text
- https://fidelishospice.com/ckfinder/userfiles/files/monarunis.pdfIn PDF document text
- http://dienmaythanglong.org/uploads/files/94977514613.pdfIn PDF document text
- https://www.msolartop.cz/wp-content/plugins/formcraft/file-upload/server/content/files/1609c95c78042f---pejaxeki.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=what+does+pet+peeve+meanPDF 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_off0000f44f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF44F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010c66.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C66 | 10480 bytes |
SHA-256: 11681bfe9199a448207567fcb9dc31fbe3971ea679b358c3f1e66d4e18e8a3f1 |
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font_02_sfnt_off0001240b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1240B | 16952 bytes |
SHA-256: e9ac8d364df69a366c8c12e4c22af3a142cd116154283475373e82abe6e40554 |
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