MALICIOUS
184
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and multiple external URIs, including one pointing to a raw IP address, indicating malicious intent. The heuristics suggest the PDF is part of a link farm hosted on compromised WordPress sites and disposable hosting, likely serving as a lure to phishing or malware download pages. The embedded JavaScript is likely responsible for redirecting the user to these malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9785
Heuristics 8
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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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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://robinio.de/wp-content/plugins/super-forms/uploads/php/files/p80r7fdkcjggu1kmbmnpg8rh89/75916066219.pdf In PDF document text
- http://xn----8sbpvg0afdbe.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/vk8jlea4oavq6b52jjnbd00pl3/katazakupobadane.pdfIn PDF document text
- https://performanshost.com/calisma2/files/uploads/58341376450.pdfIn PDF document text
- https://yuktiedu.com/wp-content/plugins/super-forms/uploads/php/files/f1f8116258f38052fcf44d64e1e7cf9a/sunitukulepijamu.pdfIn PDF document text
- http://www.auditsi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607e97f050317---63124066020.pdfIn PDF document text
- https://www.idromeccanicasrl.com/idromeccanicasrl.com/wp-content/plugins/super-forms/uploads/php/files/0482bb24592f36a38860dd75d581638e/fapoguzireboxorejubadumug.pdfIn PDF document text
- https://sevsport.info/wp-content/plugins/super-forms/uploads/php/files/a07c020b6503084584c18b900e78bb73/80447828285.pdfIn PDF document text
- http://jointrilogy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a658436dbb8---zuvapoj.pdfIn PDF document text
- http://kalmi.ru/upfiles/files/papirelivevedebe.pdfIn PDF document text
- https://soudurelauziere.com/upload/editor/file/41154586511.pdfIn PDF document text
- https://flycam.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16084b944aebe6---87877928579.pdfIn PDF document text
- https://dacoma.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160781f11e658b---79495224297.pdfIn PDF document text
- http://tgtech-auto.com/userfiles/file/76980043217.pdfIn PDF document text
- http://garageanything.com/js/upload/files/35864979876.pdfIn PDF document text
- http://104.156.58.56/~web2inbox/wp-content/plugins/formcraft/file-upload/server/content/files/160b98df268fe9---xamefaliwidopab.pdfPDF link annotation
- http://hattrick-sports.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084cedf4c198---nedisoxinolubojalona.pdfIn PDF document text
- https://bluetact.com/locktactyuma/userfiles/file/13953871985.pdfIn PDF document text
- http://harchovyk.com/userfiles/file/85044096176.pdfIn PDF document text
- http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607e3aa6b0780---25976459910.pdfIn PDF document text
- https://www.emmabowman.com/wp-content/plugins/super-forms/uploads/php/files/a2c211bcc5963b5540bf37cf695d46c3/31125370829.pdfIn PDF document text
- http://dspec-car.com/js/upload/files/fasafowapaw.pdfIn PDF document text
- https://www.superioreagle.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cb9575d969b---refebe.pdfIn PDF document text
- http://www.marcelasemper.com/wp-content/plugins/formcraft/file-upload/server/content/files/160724a285d8d0---91646247518.pdfIn PDF document text
- http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/6ee88372fef0193eccb30d90286591b9/73177422161.pdfIn PDF document text
- https://grand-forge.ru/wp-content/plugins/super-forms/uploads/php/files/d462b638a27459cd06c49a422a9f7ae4/vexasokiwumuvovedizireza.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=see+you+next+tuesdayPDF 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 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
stream_003_off00011fe9.bin |
decompressed-pdf-stream | PDF FlateDecoded stream at offset 0x11FE9 | 18328 bytes |
SHA-256: d9f5e66163d907df9b2c2f031b8906ab183602eda4757f3e8ef428a9cf922d60 |
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font_00_sfnt_off0000e904.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE904 | 22432 bytes |
SHA-256: df52c0b5daf65a29f640408f481a1d8b75be31bf247077a6bf67a9b5a41c2308 |
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font_02_sfnt_off00013d8a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13D8A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_03_sfnt_off000155a1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x155A1 | 10392 bytes |
SHA-256: 9cac1276e5823a1eec65dfb3c3c82587490ba738dc98e9530c73480cad56cde3 |
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font_04_sfnt_off00016d58.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16D58 | 3464 bytes |
SHA-256: a8161c2f5ba9235eb51b4fcc43b6bb219725019365cb8d38f9ec25dfe5ce54ff |
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