MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded URLs, many of which point to other PDFs hosted on compromised or disposable domains. This behavior is consistent with a link farm designed to distribute malicious content or phish for information. The ClamAV detection and ML classifier further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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QR-code redirect lure medium SE_QR_LUREDocument instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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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://dolupin.com/calisma2/files/uploads/dorolerige.pdf In PDF document text
- http://tabletopad.com/images/file/pakuvipipi.pdfIn PDF document text
- http://otpetye.com/images/shared/file/37787305457.pdfIn PDF document text
- http://5mal4.de/moneyvidya/web/images/userfiles/file/sitoxafirel.pdfIn PDF document text
- http://thsport.dk/ckfinder/userfiles/files/fejuvaxa.pdfIn PDF document text
- https://elearning-chemistry.ro/userfiles/file/2167451005.pdfIn PDF document text
- http://barexkft.hu/userfiles/file/96930425150.pdfIn PDF document text
- http://www.77ice.com/upload/files/gisamuropelufuvivowax.pdfIn PDF document text
- https://www.gurkhasfinance.com.np/ckfinder/userfiles/files/53463132984.pdfIn PDF document text
- https://editionsitaliques.com/userfiles/file/kalowuvegivuwe.pdfIn PDF document text
- http://evolutionchonburi.com/userfiles/files/tosuwogurabarulafoxag.pdfIn PDF document text
- https://marmetal.cevhertemizlik.com/userfiles/files/79291324354.pdfIn PDF document text
- http://viettranslators.com/webroot/img/files/mupidupowaler.pdfIn PDF document text
- http://sieckultury.pl/wp-content/plugins/super-forms/uploads/php/files/45d31e358afe57be090fb3a145a856f0/xagepipegiwixitijoripugem.pdfIn PDF document text
- https://elperrocallejero.info/ckfinder/files/gagazokovazas.pdfIn PDF document text
- http://elard-group.com/ckfinder/userfiles/files/fexupot.pdfIn PDF document text
- http://slowjamsundays.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f02e0c2fff---76028802617.pdfIn PDF document text
- http://turchifiltri.com/userfiles/files/vezovexaj.pdfIn PDF document text
- http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613c7b0d84e23---limusozenumorawulawiwukeb.pdfIn PDF document text
- http://chuaphucluong.com/uploads/image/files/fasepukiz.pdfIn PDF document text
- https://cungcapthitdetuoi.com/app/webroot/files/images/pages/files/30452669489.pdfIn PDF document text
- https://aymfly.com/aym_image/files/dijisukaliwavogajam.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=snooker+online+apkPDF 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_off0000bdd9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBDD9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d5eb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD5EB | 17928 bytes |
SHA-256: 1e5d642ca15328439a8f9fefa461c7d58208894a8166e4911b4904c174f1e89a |
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font_02_sfnt_off000104bf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104BF | 10148 bytes |
SHA-256: f5c676f7c21539d3845727a03341a7b5460800c1dcf86a3c8ccbb43de3166d2e |
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