MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample contains embedded JavaScript, which is a common technique for executing malicious code within PDFs. The heuristic firings indicate that this PDF acts as a link farm, directing users to multiple compromised WordPress upload directories. This suggests an attempt to distribute malware or conduct phishing attacks by luring users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9948
Heuristics 7
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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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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 http://www.191seo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c1b49c891a---taluvikav.pdf
- http://www.julitolaschools.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609930a851de3---vojezemiguvugejozule.pdf
- https://www.hotwaterfactory.com.au/wp-content/plugins/super-forms/uploads/php/files/fcfe9de39d3b408b63567817984dc2de/88997351851.pdf
- https://www.bouldersudbury.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608732d32989d---nepolexa.pdf
- https://centar-znr-zop.hr/wp-content/plugins/formcraft/file-upload/server/content/files/16087c9f6b02f2---3327023348.pdf
- http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/1606fa3868c26a---84663991171.pdf
- https://www.spreefahrten-berlin.de/wp-content/plugins/super-forms/uploads/php/files/q5uv31riqk1tr5tj6tngq3p6ii/51468586022.pdf
- https://f1com.ge/wp-content/plugins/super-forms/uploads/php/files/6f234bb3d4fdb3d3331ce59faddd7d66/kixanipoxotefesatef.pdf
- http://www.jesuseslaroca.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607e6e8274185---15189537941.pdf
- http://premiumresourcing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f2c0de81fc1---67000745263.pdf
- https://xo-sound.ru/userfiles/file/62895955586.pdf
- http://www.rebranded.tv/wp-content/plugins/formcraft/file-upload/server/content/files/160b45baeca47d---dosefij.pdf
- http://www.agrosystem.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160b37cf00b5fc---tipoganutabufotaxes.pdf
- http://geology.ie/wp-content/plugins/formcraft/file-upload/server/content/files/160824db67a932---xerotavewakotojenexibixo.pdf
- http://www.celso.org/download/muzenusature.pdf
- http://www.acefence.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082e06003e98---65780628706.pdf
- https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/5b9919b0f5aa78c70efcee2ec9a19e0c/69054284311.pdf
- https://infravoip.com/wp-content/plugins/super-forms/uploads/php/files/e7be0b817e193cfadfcf6cd9357f04b1/xadazoxedosi.pdf
- http://c2r-auto.com/uploadfiles/file/2021062818203173499.pdf
- http://yossy.biz/userfiles/file/72441743184.pdf
- http://geology.ie/wp-content/plugins/formcraft/file-upload/server/content/files/1607b5b0acdeba---94228415911.pdf
- https://soyana.de/js/ckfinder/userfiles/files/supukeseguvofaf.pdf
- https://deewo.de/wp-content/plugins/formcraft/file-upload/server/content/files/16073f23f36390---33964844974.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=largest+cruise+companies+in+world
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ffa8.binb5de0e5d5a83091a3784f67827cb9a69ef77e8ac6cf1e1ea7fa71f01bca01aad |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFA8 | 17028 bytes |
font_01_sfnt_off00012c2d.bin20eeecf7422496db1063a74922d58ad4dd4b2c0f58660bec4b5969e6af1ce110 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12C2D | 11000 bytes |
font_02_sfnt_off00014592.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14592 | 16792 bytes |
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