MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, directing users to multiple external URLs hosted on potentially compromised websites. The presence of numerous links, including one with a 'utm_term' parameter suggesting tracking, points towards a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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=run+in+background+android PDF link annotation
- http://trainternational.in/wp-content/plugins/formcraft/file-upload/server/content/files/1613599aa4c6f7---namupelakijasage.pdfIn PDF document text
- http://uro-medical.pl/zdjecia/fotki/file/33232633473.pdfIn PDF document text
- https://www.tristar-technology.com/ckfinder/userfiles/files/73349423815.pdfIn PDF document text
- https://powerliteaac.com/userfiles/file/47421016739.pdfIn PDF document text
- http://musicpark-live.com/userfiles/file/rijizoxo.pdfIn PDF document text
- https://pakistanchristiancongress.org/userfiles/file/64718998556.pdfIn PDF document text
- http://xn--or3bi2da319p.com/upload/fckeditor/file/nijemulexatepaluga.pdfIn PDF document text
- http://terwaarde.be/ckfinder/userfiles/files/98193230294.pdfIn PDF document text
- http://naphogacomposite.com/upload/files/vajakimomidanidagom.pdfIn PDF document text
- http://capesociety.ca/uploads/files/81734485472.pdfIn PDF document text
- https://gastriklandsbf.se/UserFiles/files/18591989992.pdfIn PDF document text
- http://mamnonkitty.com/webroot/img/posts/files/91057182535.pdfIn PDF document text
- https://leavereview.com/customerinterview/ckfinder/userfiles/files/72578318836.pdfIn PDF document text
- http://bbu.vn/Images_upload/files/gotadogurasirit.pdfIn PDF document text
- http://laibros.com/ckeditor/userfiles/files/1628620840.pdfIn PDF document text
- https://kluchar.net/klucharnet/images/file/45739559991.pdfIn PDF document text
- http://bitite.lv/media/txt/122/file/33432015582.pdfIn PDF document text
- https://glosunspa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614032045d8fb---37320090330.pdfIn PDF document text
- http://eros-arena.name/eros/userfiles/file/jivudolilasa.pdfIn PDF document text
- https://wickedcheesy.com/images/file/fuguvixoloba.pdfIn PDF document text
- https://greenfuturevietnam.com/Upload/files/dabafoxog.pdfIn PDF document text
- https://maydongy.com/wp-content/plugins/super-forms/uploads/php/files/9vmeehh8bmtbq3mjcd0ckdeurs/68342824727.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_off0000d4bd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD4BD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000eccf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECCF | 17520 bytes |
SHA-256: 1e4f77aa306c503d78624ef01d0dec11559ca28b01b967f0653d7589ec673aa8 |
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font_02_sfnt_off00011a66.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A66 | 10480 bytes |
SHA-256: 51243c6d097a04638fa2f209881dcff70fd957702957aae8ab7329bc54c0e02f |
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