MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. The heuristics reveal it functions as a link farm, directing users to numerous external URLs hosted on potentially compromised or disposable domains. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM firings strongly suggests a phishing or malware distribution campaign.
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=power+of+attorney+in+fact PDF link annotation
- https://kaktutzhit.by/uploads/files/27049357372.pdfIn PDF document text
- https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608318e1ac30c---50050366839.pdfIn PDF document text
- https://blueridgelightingandcontrols.com/wp-content/plugins/super-forms/uploads/php/files/7f42b8f9be42bcd5797a9e58adfde37c/fabowub.pdfIn PDF document text
- http://coeb.eu/userfiles/files/17602093249.pdfIn PDF document text
- https://brahmagnanam.org/fck_uploads/file/nisutududu.pdfIn PDF document text
- http://nyett.hk/uploads/news/files/48592038109.pdfIn PDF document text
- https://shiphangnhanh.net/uploads/image/files/82307898926.pdfIn PDF document text
- https://textolinguisticsolutions.com/upload/editor/file/28448979387.pdfIn PDF document text
- http://parkwestresidences.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609fd25902493---76125398011.pdfIn PDF document text
- http://digjamaica.com/app/webroot/files/melakuzunevisunegawuga.pdfIn PDF document text
- http://www.infranetltd.com/wp-content/plugins/formcraft/file-upload/server/content/files/16105e9585e1db---27852093821.pdfIn PDF document text
- http://xn--h49al71atridzo.com/userData/board/file/wepalub.pdfIn PDF document text
- https://lakeshoresmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/at3c4id5es4nstercvshk1d282/barusekumuxigesif.pdfIn PDF document text
- http://mpu-beratung-brendle.de/userfiles/file/xajixetagegalolorosuniz.pdfIn PDF document text
- https://www.hemoroidklinigi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606eee74ebe46---65804079997.pdfIn PDF document text
- http://www.elitagida.com.tr/wp-content/plugins/super-forms/uploads/php/files/dntb3napvdsjp60jdgaoe6pmq3/bewozowoziwunamem.pdfIn PDF document text
- https://yar-net.ru/userfiles/file/pesopile.pdfIn PDF document text
- https://astoriareiki.com/wp-content/plugins/super-forms/uploads/php/files/4262de353d6f4e4696ebdebfb528a308/wosores.pdfIn PDF document text
- http://aksaaydinlatma.com/img/editor/image/file/34186427472.pdfIn PDF document text
- http://teledirk.com/d/files/40214065209.pdfIn PDF document text
- http://gardenofsound.com/userfiles/files/44531762026.pdfIn PDF document text
- https://louvre.lv/res/wysiwyg/file/ginarimemowemoguzamoz.pdfIn PDF document text
- https://spazmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bdd00ce6fae---48592046784.pdfIn PDF document text
- http://eurekaelearning.com/upload/news/file/mofapurazexupidagejozi.pdfIn PDF document text
- https://sancarspune.com/wp-content/plugins/super-forms/uploads/php/files/dd4ce3c9c63cb0e4b3e90c59fedf9171/82670159332.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_off0000ea89.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA89 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0001029b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1029B | 17256 bytes |
SHA-256: bfb57f5e20589019fac958f940cd83f4acf90909842c3417ddc65360e2b3495b |
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font_02_sfnt_off00012ee2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12EE2 | 10316 bytes |
SHA-256: ebc66a9446df5a27c16051a93866a38e3e4e0e4ef64dee19a274a128a116a6ca |
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