MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as malicious by ClamAV and an ML classifier, with heuristics indicating it functions as a link farm. Multiple external URLs are present, including one hosted on a compromised WordPress site, suggesting a phishing or malware distribution attempt. The PDF structure and embedded links are consistent with techniques used to lure users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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=dauntless+jagged+spark+scale PDF link annotation
- https://ud-hobby.com/images/Upload/file/36831494148.pdfIn PDF document text
- https://12shio1.com/contents/files/7408824255.pdfIn PDF document text
- https://umartravel.com/files/46944489588.pdfIn PDF document text
- https://tl-systems.hu/files/files/78351979047.pdfIn PDF document text
- https://detector-billetes.com/Imagenes/file/7100126269.pdfIn PDF document text
- http://udmvdpo.ru/images/files/89105902741.pdfIn PDF document text
- https://harteron.ee/userfiles/file/24367421793.pdfIn PDF document text
- https://sanagustin.cl/files/buzapekojifir.pdfIn PDF document text
- http://zoo-foto.cz/userfiles/file/pebowavidamamasukebofak.pdfIn PDF document text
- http://e-hematologica.pl/users/file/kebifezurefetitikutujovev.pdfIn PDF document text
- http://diepdoanhmetals.com/media/ftp/file/pusipimojekopew.pdfIn PDF document text
- http://speednewslive24.com/assets/ckfinder/core/connector/php/uploads/files/39159567660.pdfIn PDF document text
- http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/161391b38b8365---kiwijirutuxubixo.pdfIn PDF document text
- http://dkind.net/userData/board/file/nuparubukopekuwesifew.pdfIn PDF document text
- http://condominiobrisasdelnorte.com/userfiles/file/3782533245.pdfIn PDF document text
- http://cheniou.handysociality.com/upload/files/53865099503.pdfIn PDF document text
- http://demo-jesma.shopcloud.es/ckfinder/userfiles/files/kotido.pdfIn PDF document text
- http://www.iqubz.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615e08b196c3e---fuzelalobi.pdfIn PDF document text
- http://kammatrans.com/userfiles/files/77833685320.pdfIn PDF document text
- https://kakvkusno26.ru/wp-content/plugins/super-forms/uploads/php/files/4a17a12d87e1d9b0b77f503d51efd637/denibizagavaja.pdfIn PDF document text
- https://namhunglogistic.vn/site/files/depunugajive.pdfIn PDF document text
- http://kcde.kr/userfiles/file/41407635399.pdfIn PDF document text
- http://baovethanglongmb.com/upload/files/fogilal.pdfIn PDF document text
- https://chaletsuenodesol.de/files/94450561597.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_off0000d4ea.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD4EA | 19248 bytes |
SHA-256: c6ac621943e36020d18e2fcc2d0fb57f5961709e99f25f1ec34a4ecefffc54f1 |
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font_01_sfnt_off00010707.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10707 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011f1e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F1E | 10800 bytes |
SHA-256: 731919e1ff971638a1e352270e4d8ec36fb2e93673c459f6dcfbae5b54663a63 |
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