MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. It contains numerous links to external websites, many hosted on compromised WordPress installations, suggesting a link farm designed to redirect users to malicious content. The presence of embedded URLs and the nature of the heuristics point towards a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
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://saraelv.no/wp-content/plugins/formcraft/file-upload/server/content/files/16072c0c8bab18---90337877893.pdf In PDF document text
- https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1606c786e48df5---tuxigej.pdfIn PDF document text
- http://www.auditsi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa13550a1c8---68699760110.pdfIn PDF document text
- http://amtusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9c18412439---butijetuf.pdfIn PDF document text
- http://botanicgardenscafe.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160c96c4094853---59814971135.pdfIn PDF document text
- http://irmascaritasdejesus.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608ca7be774f5---mitaduba.pdfIn PDF document text
- http://www.julitolaschools.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081d59e53592---toxukeba.pdfIn PDF document text
- https://alianzatours.com/imagenes/file/denegexo.pdfIn PDF document text
- http://www.saraviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160acca4c74c18---1149338804.pdfIn PDF document text
- https://triosms.com/userfiles/file/97883533843.pdfIn PDF document text
- http://thegreenlegacykeepers.com/clients/e/e8/e8dc17949b7ef813e9937e453902477f/File/5543867533.pdfIn PDF document text
- http://unipell.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b54bb360976---59815476095.pdfIn PDF document text
- https://limpjet.com.br/wp-content/plugins/super-forms/uploads/php/files/c55d33d8a6353e54eeae332d38ce0b08/7029053320.pdfIn PDF document text
- https://malimbe.africa/wp-content/plugins/super-forms/uploads/php/files/fcf700b9f9fa94dcff4ee990b30affcd/jomirigesumu.pdfIn PDF document text
- http://cnzhongkui.com/fckeditor/editor/filemanager/connectors/php/uploads/file/050112436399.pdfIn PDF document text
- https://keralatemples.info/ckfinder/userfiles/files/52148115535.pdfIn PDF document text
- http://rencontres-icare.org/userfiles/file/26560487553.pdfIn PDF document text
- https://jnfarley.com/wp-content/plugins/super-forms/uploads/php/files/mga34lkj153vic4eh70lo8t875/79538191136.pdfIn PDF document text
- http://stopasbestos.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16089103cb01b4---52334553598.pdfIn PDF document text
- http://evola.it/userfiles/files/zodugebodu.pdfIn PDF document text
- http://baschin-heizung.com/meineBilderAlbertGrundschule/file/lekal.pdfIn PDF document text
- http://grupomarsamo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16095b147c7a9f---42099513151.pdfIn PDF document text
- https://www.swissfillon.com/wp-content/plugins/super-forms/uploads/php/files/996db212f6a34baca19d27c9d01344f2/jetijikuvagalefor.pdfIn PDF document text
- https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/a0d13b44fbf103fe4a499475824599d9/77750336040.pdfIn PDF document text
- https://www.lipfish.no/wp-content/plugins/formcraft/file-upload/server/content/files/160bbeebbc5d2f---48644200498.pdfIn PDF document text
- https://gz-topstar.com/wp-content/plugins/super-forms/uploads/php/files/a50b4316c6add5e47cddd00f25e92bad/98798126242.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=mother%27s+day+dinner+recipesPDF 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_off0000f1d9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1D9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000109eb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109EB | 16616 bytes |
SHA-256: a4299f865a21c29db8fb40c464b126cbbfb5099b3183ce831515bc735028c877 |
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font_02_sfnt_off0001350d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1350D | 10704 bytes |
SHA-256: b1edd27ffff895de069753ac3f01acd34f8a64f544fbb2dbc967b456090435fb |
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