MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to PDF files hosted on compromised CMS uploads or disposable hosting, suggesting a link farm or SEO poisoning tactic. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a phishing or malicious redirection attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9928
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://csc0451.com/userfiles/file/20210713222710_pmfs2u.pdf In PDF document text
- http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/160702cabe815e---78610747875.pdfIn PDF document text
- http://donaldnathanlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/7075337778.pdfIn PDF document text
- http://pwmtqatar.net/userfiles/file/lamuletutixen.pdfIn PDF document text
- http://duocmyphamcongty.com/app/webroot/uploads/files/7898903843.pdfIn PDF document text
- https://infravoip.com/wp-content/plugins/super-forms/uploads/php/files/1492e3bb25c8a7add83c4b417502167f/vejuvasataxer.pdfIn PDF document text
- http://coss-wynn-reunion.com/clients/d/db/dbe3622004495b304d8703879a486b7d/File/52946996301.pdfIn PDF document text
- https://www.karavanlakesfet.com/wp-content/plugins/super-forms/uploads/php/files/25c3c8b7d2d518dda223eb84aa64df2e/65713340090.pdfIn PDF document text
- http://www.recko.ru/ckfinder/userfiles/files/56452498574.pdfIn PDF document text
- http://jentretiens.ch/uploadimage/98529296590.pdfIn PDF document text
- https://www.theknowledgeonline.com/files/lib/ckfinder/userfiles/files/6610191874.pdfIn PDF document text
- http://i-dron.cz/data/file/88427389196.pdfIn PDF document text
- https://gpuhub.net/wp-content/plugins/super-forms/uploads/php/files/ap41oqkdem68er7pudlh31tmrh/sibuni.pdfIn PDF document text
- http://dataction.org/demo/dataction/media/mupedesepoxowukadeki.pdfIn PDF document text
- http://in-dapt.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608de082311e6---wakozazigulunima.pdfIn PDF document text
- http://zonweringbelgie.com/ckfinder/userfiles/files/diriwefe.pdfIn PDF document text
- http://bochosushi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609dfc37ad53d---zururi.pdfIn PDF document text
- http://mikomisushi.com/uploads/files/duguruzomerojogixalaw.pdfIn PDF document text
- https://www.formwork.co.uk/wp-content/plugins/super-forms/uploads/php/files/006c256jalka7ta3qibi0am276/4227419247.pdfIn PDF document text
- https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609263223ab0f---89881003922.pdfIn PDF document text
- https://www.kbstephens.com/wp-content/plugins/super-forms/uploads/php/files/e5684dd5c7d26d5f065e874fe3ff5b83/94242179363.pdfIn PDF document text
- https://harpethvalleyhealth.com/wp-content/plugins/super-forms/uploads/php/files/c7149564f7d94285e147adf10327d33e/26373875817.pdfIn PDF document text
- https://avis-medical.ma/wp-content/plugins/super-forms/uploads/php/files/ba276554c7788ec5a3a9c276fc4b0b32/40619674269.pdfIn PDF document text
- https://jahanchart.ir/data/files/file/tokobevus.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=fluid+mechanics+fundamentals+and+applications+3rd+editionPDF 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_off0001190c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1190C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0001311e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1311E | 18268 bytes |
SHA-256: 13c4ab7563eeffa98f3616a41b4aa540f4d5ae5160aff34d391901a095b62a7b |
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font_02_sfnt_off000160d8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x160D8 | 11136 bytes |
SHA-256: c7bc26b9b152be814cb4580818536668b37cfabb67683487c62d6b37fb0256f7 |
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