MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as 'Pdf.Phishing.Trojan'. It contains numerous external URIs and links to compromised WordPress upload storage and disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The presence of embedded URLs and the nature of the heuristics indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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://nomylo.ru/uplcv?utm_term=30000+calories+to+kg PDF link annotation
- http://ledspectrumthai.com/ckfinder/userfiles/files/22338466374.pdfIn PDF document text
- https://eliteswimmingpoolsinc.com/wp-content/plugins/super-forms/uploads/php/files/3vm0h9ugs0bbuhdhb77nb282l6/wupinokimusugumizepud.pdfIn PDF document text
- https://ratoempat.com/contents/files/12687957437.pdfIn PDF document text
- http://hamdannepal.com/userfiles/file/31282663474.pdfIn PDF document text
- https://www.a2zmedical.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1614358b0b5ff8---dazusup.pdfIn PDF document text
- https://didaktika.drmix.cz/uploads/files/59881799878.pdfIn PDF document text
- https://medius.sk/userfiles/file/92268243078.pdfIn PDF document text
- http://f-kcc.jp/user_data/userfiles/files/21587144405.pdfIn PDF document text
- http://manegedebuitenwijck.nl/uploads/file/48283602357.pdfIn PDF document text
- http://russia-ex.com/images/blog/file/44320314218.pdfIn PDF document text
- http://jenistudio.com/upload/FCK/file/kevemarugitowewatozunepur.pdfIn PDF document text
- https://www.playitdirect.ca/ckfinder/uploadfiles/files/puzavebofexogevazudizawel.pdfIn PDF document text
- http://skybuildinfraprojects.com/uploads/33581881338.pdfIn PDF document text
- http://aqs-group.it/userfiles/files/58891319306.pdfIn PDF document text
- http://rabotatver.ru/userfiles/admin/76258653818.pdfIn PDF document text
- https://www.costaverde.it/wp-content/plugins/formcraft/file-upload/server/content/files/1612f021a104e7---vumirineref.pdfIn PDF document text
- http://synagoge-stommeln.de/ckfinder/userfiles/files/dezewexamavone.pdfIn PDF document text
- http://pcwenhua.com/uploadimg/file/16330015131214867057.pdfIn PDF document text
- http://dh-cell.com/ckfinder/userfiles/files/58995228224.pdfIn PDF document text
- https://defi128.phpascal.com/userfiles/files/58543222000.pdfIn PDF document text
- http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/161625f78e0fbf---97104972393.pdfIn PDF document text
- https://eingangrad.ch/userfiles/files/80711882023.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_off0000b78a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB78A | 10588 bytes |
SHA-256: 5d85f1e88e201b119de5ca24c6836a05badc0c7300d6328d5ea4b45e340cb140 |
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font_01_sfnt_off0000cfdb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCFDB | 17836 bytes |
SHA-256: 8b3a024ead65cff1b4c3a5eac0aacf3aed9b82258e7b97bcb19276fd6b3c2f52 |
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font_02_sfnt_off0000fdf7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDF7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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