MALICIOUS
176
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs pointing to various domains, many of which are associated with compromised WordPress sites or disposable hosting, indicating a link farm for phishing or malware distribution. The ClamAV detection and ML classifier strongly suggest malicious intent, specifically identified as a phishing trojan. While no scripts were directly extracted, the nature of the URLs and the heuristic firings point towards a phishing or malware delivery scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 7
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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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Clickable URI points to raw IP address medium PDF_URI_IP_LITERALPDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
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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=born+rich+pdf PDF link annotation
- https://doitsolutions.co/wp-content/plugins/super-forms/uploads/php/files/2ed9de8129b0639964783c0aa753ab1b/lokaro.pdfIn PDF document text
- http://www.tiande-global.com/ckfinder/userfiles/files/93746501442.pdfIn PDF document text
- https://humanistbeauty.com/wp-content/plugins/super-forms/uploads/php/files/25fgilqp1kajlm9ku7blmv3rhi/9486376220.pdfIn PDF document text
- https://thegioibaobicarton.com/Images_upload/files/23097884374.pdfIn PDF document text
- http://tencanpowder.com/d/files/sulilemabe.pdfIn PDF document text
- https://gmnavarra.es/ckeditor/files/sidegemubigubebudupi.pdfIn PDF document text
- http://xinshifm.com/userfiles/file/zosaganebexuwijowen.pdfIn PDF document text
- http://mijinmotor.com/fckeditor/userfiles/file/12550865881.pdfIn PDF document text
- http://140.121.125.49/ckfinder/userfiles/files/20210901_070014.pdfPDF link annotation
- http://www.stemcellhairclinic.com/files/files/49500096250.pdfIn PDF document text
- http://gardatrans.com/content/Files/35480564802.pdfIn PDF document text
- https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612fc100388d4---46452970467.pdfIn PDF document text
- https://icnj.net/ckeditor/ckfinder/userfiles/files/bogodomujizibenaf.pdfIn PDF document text
- https://ubranni.com/uploader/files/9763252080.pdfIn PDF document text
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613c8072700f6---xokefimopenebawazox.pdfIn PDF document text
- http://ladna.pl/user_images/file/51976062911.pdfIn PDF document text
- http://architettosirocco.it/userfiles/files/kumikosanomazadoripulava.pdfIn PDF document text
- https://vonia.mikludava.lt/images/files/11902129180.pdfIn PDF document text
- https://wsbe17hongkong.hk/_bin/ckfinder/userfiles/files/laloxolojud.pdfIn PDF document text
- https://www.bevillelecomte.com/ckfinder/userfiles/files/lexifizujupi.pdfIn PDF document text
- http://www.ondebiz.com/userfiles/file/zuzikibadoxixupemakin.pdfIn PDF document text
- http://elma-itc.ru/!upload/files/jobonajaj.pdfIn PDF document text
- http://www.fred-robin.com/ckfinder/userfiles/files/79162119640.pdfIn PDF document text
- https://self-storage.sg/images/uploadedimages/file/fevudador.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_off0000f1b0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1B0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000109c7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109C7 | 10164 bytes |
SHA-256: f5de7878c4661536dc3732ddeddf858a7e66f3649d5a01dd38d62098928eed6f |
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font_02_sfnt_off00012058.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12058 | 18488 bytes |
SHA-256: 306a5482bd75bfc7d345336d67b487570834874576b8279664761261b3c496d5 |
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