MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous external links, many of which are hosted on compromised websites or disposable domains, suggesting a link farm designed to redirect users to malicious content. The presence of a ClamAV detection for 'Pdf.Phishing.Trojan' and ML classifier flagging further supports its malicious nature. The document body, though heavily obfuscated, indicates it was generated by wkhtmltopdf, a tool often used to create PDF documents from web content, aligning with the phishing lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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://synerhu.ru/uplcv?utm_term=download+google+play+store+app+white+shopping+bag PDF link annotation
- https://www.cukoyem.com.tr/wp-content/plugins/super-forms/uploads/php/files/hd68ajg7gqd3ffurfntp8v93i3/gikapopavevizewubevimuguv.pdfIn PDF document text
- https://alansglobalservices.com/ckfinder/userfiles/files/xojotojufubo.pdfIn PDF document text
- https://lean-ds.com/upload/editor/file/77982960878.pdfIn PDF document text
- http://transgusto.ch/userfiles/file/zuluvafafajuxipavimiwu.pdfIn PDF document text
- https://www.ijestr.com/ckfinder/userfiles/files/4628279323.pdfIn PDF document text
- https://hzautomatisering.nl/userfiles/file/85107179373.pdfIn PDF document text
- https://kipass.fr/userfiles/file/79132977819.pdfIn PDF document text
- http://tecsun-moscow.ru/docs/file/86828130475.pdfIn PDF document text
- http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/16150f408a42a1---gujofivu.pdfIn PDF document text
- http://liderzy.natura2000.pl/imgturysta/files/74700370195.pdfIn PDF document text
- http://www.omt.ntou.edu.tw/ckfinder/userfiles/files/17481375342.pdfIn PDF document text
- http://absolutelyneon.com/userfiles/file/76445826853.pdfIn PDF document text
- http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130174bdbf86---38616845369.pdfIn PDF document text
- http://agro-vostok.ru/userfiles/file/5792429558.pdfIn PDF document text
- http://cancunday.com/travela/img/files/47928724140.pdfIn PDF document text
- http://studiosiriosrl.it/userfiles/files/penabug.pdfIn PDF document text
- https://dongytueduc.com/wp-content/plugins/super-forms/uploads/php/files/7v5qerthrrbc64q1ou92jju3vd/35819601519.pdfIn PDF document text
- http://cornaredo.gattinonimondodivacanze.it/themes/userfiles/files/wemas.pdfIn PDF document text
- https://xn--1--8kcai1ck2bs.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/1ac94686068aae1c134befb1a48ce027/kezawukowawizokasuzugiru.pdfIn PDF document text
- http://agroanaliz.by/upload/editor/files/japofawumoduxisesiviraj.pdfIn PDF document text
- http://asid.rw/userfiles/file/girisawiliwaroma.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_off0000ab25.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAB25 | 11012 bytes |
SHA-256: 8136d99b089f2d7f8396b9efd1dad00656dee819a95f616eca467f0b819fcad3 |
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font_01_sfnt_off0000c44e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC44E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000dc60.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC60 | 14512 bytes |
SHA-256: 5dec6957306011bade263dc2b1ac0950a28ec9ce31e689523be544eee821fcd9 |
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