MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by multiple heuristics as containing a link farm pointing to compromised WordPress uploads and disposable hosting. The ML classifier and ClamAV also identified it as malicious, specifically as a phishing trojan. The embedded URLs likely serve as lures to trick users into visiting malicious sites, potentially for credential harvesting or further malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://synerhu.ru/uplcv?utm_term=church+of+pentecost+2019+theme+songs+pdf PDF link annotation
- http://penoplex24.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16072cba28ceff---xazazonilox.pdfIn PDF document text
- https://neoville.ru/wp-content/plugins/super-forms/uploads/php/files/b16e39acb351bc173fa1e9c52b239a0d/loferazinemonenedefegemev.pdfIn PDF document text
- http://informerfitness.com/wp-content/plugins/super-forms/uploads/php/files/494a5f26b0964953bfa3286cb537a99f/sukujaxo.pdfIn PDF document text
- http://holzbau-napetschnig.at/6322783089.pdfIn PDF document text
- http://matras-devison.com/upload/file/75779496338.pdfIn PDF document text
- http://mywayrtk.info/userfiles/file/40647461795.pdfIn PDF document text
- https://glory-aqua.com/userfiles/file/xugakosuvumuresugobew.pdfIn PDF document text
- http://video-cycling.de/files/file/4682386082.pdfIn PDF document text
- http://timandlor.com/userfiles/file/82105061921.pdfIn PDF document text
- http://lahma.pl/_u/userfiles/file/fawow.pdfIn PDF document text
- https://dehayemek.net/upload/ckfinder/files/mirezajaxado.pdfIn PDF document text
- http://www.lauricedale.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607bf830439ea---mamolizaxovogilutenaduf.pdfIn PDF document text
- http://busankid.com/webfiles/board/file///zijavuki.pdfIn PDF document text
- http://for-rent-aalst.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071ae036ddf1---93993137763.pdfIn PDF document text
- https://sherwoodchamber.org/ckfinder/userfiles/files/wesagokuvovisivoraw.pdfIn PDF document text
- http://ednak.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c473d02b484---niwopaxofadutiweritasoj.pdfIn PDF document text
- http://vladjurnalist.ru/archive/file/gibarezatekujan.pdfIn PDF document text
- https://mama-light.net/business_school/uploads/file/bemerupatadezovurel.pdfIn PDF document text
- http://se-ty.ru/uploads/userfiles/file/41461648715.pdfIn PDF document text
- http://reversetheclocknow.com/ckfinder/userfiles/files/lufos.pdfIn PDF document text
- https://berbagiangka.com/contents//files/97582963790.pdfIn PDF document text
- http://sherwoodchambergolf.com/ckfinder/userfiles/files/disax.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_off0000d6ba.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6BA | 18768 bytes |
SHA-256: 7d95550a37de0971ba467346eb491f26856fb64c7b56af0d931cf5e7de3b9d09 |
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font_01_sfnt_off000107b9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x107B9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011fd0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11FD0 | 11360 bytes |
SHA-256: 832790cf2cb2647291580620c624dca95596cf5626a99e0ae60f94dfeef4d72c |
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