MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was flagged by multiple heuristics and an ML classifier as malicious, with ClamAV detecting it as a phishing trojan. The document contains numerous links hosted on compromised CMS uploads, suggesting an attempt to trick users into downloading further malicious content. The presence of a 'download button' heuristic further supports this phishing lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9929
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://www.bouldersudbury.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a791a7d83e3---28591189608.pdf In PDF document text
- http://novaserv.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b7892c435a---lufimobudujegamipupasajuz.pdfIn PDF document text
- http://dailyxedayhang.com/userfiles/files/nufadixeko.pdfIn PDF document text
- https://catherinehourihan.art/wp-content/plugins/super-forms/uploads/php/files/f5444878bf6a43ca92c1b681a66f560e/rosixepefi.pdfIn PDF document text
- https://www.americansummercamps.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ca3cd1cc32---lofel.pdfIn PDF document text
- http://cuacuontoanthang.com/media/file/weteraginugojijanawozij.pdfIn PDF document text
- https://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bec1870aa87---68934978572.pdfIn PDF document text
- http://gongotour.com/FileData/ckfinder/files/20210709_D0D8F4842B1A4B03.pdfIn PDF document text
- http://tai-yang.tw/taiyang/upload/file/6284903510.pdfIn PDF document text
- https://baobihungphu.com/media/ftp/file/78387065332.pdfIn PDF document text
- http://madiagranitosilano.it/userfiles/files/dezokujawiwezutebibowemen.pdfIn PDF document text
- https://engravestone.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607328fdae3a6---51212364383.pdfIn PDF document text
- https://leicht-spb.ru/wp-content/plugins/super-forms/uploads/php/files/28a6e2db340be9bed83aa27b9f030ff3/1950919312.pdfIn PDF document text
- https://perleyparish.org/wp-content/plugins/super-forms/uploads/php/files/26998db22fbb1675378d8f9376686558/9341730670.pdfIn PDF document text
- https://muratay.nl/userfiles/file/65551418172.pdfIn PDF document text
- https://oknoplus-omsk.ru/wp-content/plugins/super-forms/uploads/php/files/ed3d221e6c7aaca43515387dd232375c/66802596676.pdfIn PDF document text
- http://momsystem.ru/public/file/tokovamunupi.pdfIn PDF document text
- https://beribuket.ru/wp-content/plugins/super-forms/uploads/php/files/81fdd64d95b107aba11ae46d89df8710/zutefiku.pdfIn PDF document text
- http://reclaimsplus.com/wp-content/plugins/super-forms/uploads/php/files/f38fe0ffd75d3e3c8672c7a98f8f9945/papupenukulusijalesase.pdfIn PDF document text
- http://baanpowertrain.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086cd5f900cb---kowajujafimofakiwazuwop.pdfIn PDF document text
- http://artecgroupservices.com/imagenes/file/rurazesifo.pdfIn PDF document text
- http://instant-image.net/UserFiles/Site/File/39198115604.pdfIn PDF document text
- http://turagent007.ru/userfiles/file/13124808448.pdfIn PDF document text
- http://ghhs1968.com/clients/5/57/5762190d0a265df614d1f295a7060a42/File/45449102633.pdfIn PDF document text
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607775bc7d378.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=psiphon+pro+download+for+androidPDF link annotation
- 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_off0001113b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1113B | 18296 bytes |
SHA-256: 0a362b909345ec7d317140425eb0703ab9da8b68ad616e3ccc5487d063799686 |
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font_01_sfnt_off0001414e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1414E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00015965.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15965 | 10452 bytes |
SHA-256: b8e5dad96647652a481acf17aefcbb8b89c078e49edd442fe437711bcd3756f1 |
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