MALICIOUS
104
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a significant number of external links. Many of these links lead to compromised CMS uploads or disposable hosting, indicating a likely attempt to redirect users to malicious content or phishing pages. The ML classifier also strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 0.9833
Heuristics 6
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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://smidgel.ru/uplcv?utm_term=structure+and+function+of+neurons+pdf PDF link annotation
- https://bya-ingenieria.com/ckfinder/userfiles/files/jojutanis.pdfIn PDF document text
- https://derfo.info/resimler/files/sinadutavesuduk.pdfIn PDF document text
- http://chinazzjx.com/d/files/nibuxe.pdfIn PDF document text
- https://www.scanworld.se/wp-content/plugins/formcraft/file-upload/server/content/files/16083463c74983---30700200627.pdfIn PDF document text
- http://fs-select.com/images/blog/file/medit.pdfIn PDF document text
- http://alnadaoil.com/userfiles/file/84928677849.pdfIn PDF document text
- https://www.mybizwebsites.com/wp-content/plugins/formcraft/file-upload/server/content/files/16095222716a22---69338581329.pdfIn PDF document text
- http://benhvientantao.com/img_duhoc/files/pujotezalujudorafotabe.pdfIn PDF document text
- http://kingsauto-bar.com/js/upload/files/29795852652.pdfIn PDF document text
- http://gsoam.ge/wp-content/plugins/formcraft/file-upload/server/content/files/16083b24bb6813---gasino.pdfIn PDF document text
- https://ita.kru.ac.th/ckfinder/userfiles/files/70247258242.pdfIn PDF document text
- http://mh-gartengestaltung.de/userfiles/file/zorarumubijavofirufori.pdfIn PDF document text
- https://thefencedocumentary.ca/adminfiles/file/60578366110.pdfIn PDF document text
- http://akicgiyim.com/userfiles/file/53377730588.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160758b0f13f0c---vojepawema.pdfIn PDF document text
- http://mawratanews.com/armedia/uploads/files/kakuzenomaxavaranilowu.pdfIn PDF document text
- http://brighterhealthcare.co.uk/wp-content/plugins/super-forms/uploads/php/files/i0fcfu8hs11jeaur4r6glpptbb/61328570252.pdfIn PDF document text
- https://popcouncilinstitute.org/wp-content/plugins/super-forms/uploads/php/files/ff2937cfb4427f18cf6581f5ee4479d0/mabelekaf.pdfIn PDF document text
- https://edoxmarketing.com/wp-content/plugins/super-forms/uploads/php/files/e6s7gtd4133s8v87ivqbql6g4q/faropewefudojoxodokore.pdfIn PDF document text
- https://patc.fr/imagesfile/55193623855.pdfIn PDF document text
- http://keemunblacktea.cn/uploads/file/030217163080.pdfIn PDF document text
- http://congluc.com/upload/files/40134838621.pdfIn PDF document text
- https://www.caesarstravel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612b0d977dbbc---18321098643.pdfIn PDF document text
- http://woodwork.pl/ubezpiecz/obrazy/file/44525320563.pdfIn PDF document text
- http://meghdoothsuzuki.com/uploads/zomipodi.pdfIn PDF document text
- http://fw-simple.com/uploads/files/95972248397.pdfIn PDF document text
- http://debeight.net/UserFiles/File/fomizobibitaje.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_off0000d2a9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD2A9 | 10744 bytes |
SHA-256: 7e4c0b405e04581cd1c240473c7d72505aed59d253148af98ee4dae7fde23c59 |
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font_01_sfnt_off0000eb7b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB7B | 16456 bytes |
SHA-256: c9a19479ca6dca9478f5fc7b91d5248945760145fbd239918e670a550607d827 |
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font_02_sfnt_off00011582.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11582 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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