MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ClamAV as a phishing trojan and by an ML classifier with high confidence. It contains numerous embedded URLs, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of external URI heuristics and link farm indicators strongly supports a phishing or malware distribution attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
Heuristics 6
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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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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://laborke.ru/uplcv?utm_term=dsi+emulator+apk PDF link annotation
- https://brusroom.com/wp-content/plugins/super-forms/uploads/php/files/ab5f4e633300f1da6276a82348e3665d/mebafotevudavininu.pdfIn PDF document text
- http://mousike.it/img_ins/files/rojalolanewusofuxidu.pdfIn PDF document text
- http://konikanarrowfab.com/ckfinder/userfiles/files/8603110368.pdfIn PDF document text
- http://dgkno.cn/upload/zijokarefofevozimu.pdfIn PDF document text
- http://czernavendeghaz.hu/admin1/file/taluzuwemeritude.pdfIn PDF document text
- http://writtenmail.com/upload_images/file/65687523445.pdfIn PDF document text
- https://harom.ro/files/file/86852115425.pdfIn PDF document text
- http://abpjse.news-read.com/upload/files/2775992260.pdfIn PDF document text
- http://www.bash.cl/media/file/nusid.pdfIn PDF document text
- http://rzn-house.ru/upload/file/43099826908.pdfIn PDF document text
- https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16133b2996cab6---jifejipo.pdfIn PDF document text
- http://mixline.ru/img/lib/file/rekanimajabamitidezuk.pdfIn PDF document text
- http://vitalbafitnessclub.eu/userfiles/files/jijedaxewonino.pdfIn PDF document text
- http://insightonafrica.in/userfiles/file/73226593216.pdfIn PDF document text
- https://freedomtampons.com/wp-content/plugins/super-forms/uploads/php/files/61a029968669bf56c51586172060dae1/47032737263.pdfIn PDF document text
- https://petek.biz/resimler/files/sexozanivokoxutati.pdfIn PDF document text
- http://buyyoutubelikes.com/ci/userfiles/files/zagik.pdfIn PDF document text
- http://kiapelhrimov.cz/UserFiles/File/filusojaje.pdfIn PDF document text
- http://prefinancovaniehypoteky.sk/res/file/wesoritozam.pdfIn PDF document text
- http://xn--krmer-dnnebacke-1kb72b.de/files/file/nafezurelizaxirukisut.pdfIn PDF document text
- http://www.integra-cr.cz/administrace/ckfinder/userfiles/files/86111222058.pdfIn PDF document text
- https://domilot.com/uploader/files/46667565210.pdfIn PDF document text
- http://constructionone.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1612f6036c259e---51570842417.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_off0000c4b6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC4B6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000dccd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCCD | 10500 bytes |
SHA-256: 18dc2c21aca03e0085b8f3f825899013e3ccc76310e1ec98efda3245be1dcdff |
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font_02_sfnt_off0000f4bb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4BB | 18632 bytes |
SHA-256: 8d6f6cce5641ebf20f64975a52be580a7bafa82667f57bccedb9841d1b84d893 |
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