MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by ClamAV and an ML classifier. It contains numerous embedded URLs that form a link farm, pointing to compromised CMS uploads and disposable hosting. These links are likely intended to lure users to phishing sites or download further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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=human+anatomy+and+physiology+1+book+for+b+pharmacy+pdf PDF link annotation
- http://elhammagazine.com/ckfinder/userfiles/files/6903927254.pdfIn PDF document text
- http://plantessentialoil.com/upload/files/57612590046.pdfIn PDF document text
- https://stillwaiting.org/userfiles/file/24689536727.pdfIn PDF document text
- http://evo-models.com/uploads/userfiles/files/wokizaxuvevorop.pdfIn PDF document text
- http://dominopark.pl/public/upload/ckfinder/userfiles/files/72525800899.pdfIn PDF document text
- https://777mto.info/contents/files/70546212472.pdfIn PDF document text
- http://nayyaralidada.com/alpha/ckfinder/userfiles/files/dedijilafojukoxirorapi.pdfIn PDF document text
- https://northcoteplaza.com/userfiles/file/sokuzebadokodinutoxi.pdfIn PDF document text
- http://ilsungwarehouse.com/userData/ebizro_board/file/gerinubudezelowag.pdfIn PDF document text
- https://blgjad.com/upload/files/jozuzopixug.pdfIn PDF document text
- http://socialbomjesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1614d3e6293001---50820130039.pdfIn PDF document text
- https://lacaune.hu/userfiles/file/95486249921.pdfIn PDF document text
- http://www.tiendadelbordado.com/ckfinder/userfiles/files/gebipimubepok.pdfIn PDF document text
- http://dossalas.com/wp-content/plugins/super-forms/uploads/php/files/5febccff782169f84ddbfdb5c1108a5a/7820377637.pdfIn PDF document text
- https://archcosmeticstudio.com.au/wp-content/plugins/super-forms/uploads/php/files/d500add33c1ef8cc4b3cfc52df5f4618/jugag.pdfIn PDF document text
- http://onlinetalk.jp/app/webroot/img/fckfiles/file/67081254663.pdfIn PDF document text
- https://szpital-sulecin.pl/images/fckfiles/file/31488662990.pdfIn PDF document text
- http://h-st.nl/bestanden/files/80660536363.pdfIn PDF document text
- http://anapharmata.hu/ckfinder/core/connector/php/files/tikimego.pdfIn PDF document text
- http://www.chiringuitomediterraneo.com/ckfinder/userfiles/files/vamosi.pdfIn PDF document text
- https://led7.ru/file/zemilax.pdfIn PDF document text
- https://bibonatura.com/ckfinder/userfiles/files/17297312165.pdfIn PDF document text
- http://fanti-fitness.pl/uploads/assets/file/tumulijabemejivuna.pdfIn PDF document text
- http://teenmag.cz/userfiles/file/83800123112.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_off0000af1d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAF1D | 14880 bytes |
SHA-256: 784b77c3eab4c32b6046a5a31ab99724d24fead721c2f86b2505a90b69aee483 |
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font_01_sfnt_off0000d457.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD457 | 11424 bytes |
SHA-256: cca3c2bbdb6a58e5b356424c83c7e38414dccd944fd0b2be0c90ecbde904ba24 |
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font_02_sfnt_off0000eeb9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEB9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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