MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous URLs pointing to compromised WordPress uploads and other disposable hosting, suggesting a link farm designed to redirect users. The PDF structure and embedded content indicate it's likely part of a phishing campaign, potentially using embedded JavaScript to facilitate redirection or further payload delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
Heuristics 6
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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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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=circuitos+serie+paralelo+y+mixto+ejercicios+resueltos+pdf PDF link annotation
- http://imhkayseri.com/resimler/files/luvejusirojulimijutalab.pdfIn PDF document text
- https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/13a9f1d2a2a77464d148670a36160899/ravulaguxikopewatox.pdfIn PDF document text
- http://laboratoriologos.it/userfiles/files/xoxukibedituwovef.pdfIn PDF document text
- https://evocative.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160a8719dd91f4---99971283062.pdfIn PDF document text
- http://novaserv.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076b61f30d1a---26019120987.pdfIn PDF document text
- http://www.miamiairportlimo.net/wp-content/plugins/formcraft/file-upload/server/content/files/160864218c4a23---vonigu.pdfIn PDF document text
- https://mymovingestimate.com/wp-content/plugins/super-forms/uploads/php/files/bb627d9c3766defbe8ba48a4258ef4c0/bodilujezasanobuxixigijub.pdfIn PDF document text
- https://swotin.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cf3a70436a8---notewida.pdfIn PDF document text
- https://www.chesapeake-lighting.com/wp-content/plugins/super-forms/uploads/php/files/b4bb0c031b93cf65b47c2d2f4ce3f585/ranomofov.pdfIn PDF document text
- http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2138b20ada---femuxibumisanepi.pdfIn PDF document text
- https://chocoinmobiliario.com/wp-content/plugins/super-forms/uploads/php/files/ccdbe5dcee2af74e48c332cff3ef05dc/kodikinituzezetonedumug.pdfIn PDF document text
- http://taborcapitalpayment.com/clients/d/d0/d0a3925ee25d0adc8806453b18bccccc/File/29236774841.pdfIn PDF document text
- http://bfr-bialapodlaska.pl/userfiles/file/31556416489.pdfIn PDF document text
- https://acryl-bg.com/userfiles/file/vavijijuzupu.pdfIn PDF document text
- https://afanasyev-design.ru/wp-content/plugins/super-forms/uploads/php/files/bb98cdfb9900b44403a1215e3af46325/20540347975.pdfIn PDF document text
- http://szyldkj.com/luodan/images/userfiles/file/89416438772.pdfIn PDF document text
- http://dioceseofniranam.org/userfiles/file/31514186411.pdfIn PDF document text
- https://ijp2.com/contents//files/74216999344.pdfIn PDF document text
- http://x-site.by/upload/editor/files/puzugan.pdfIn PDF document text
- http://www.farparts.cl/wp-content/plugins/formcraft/file-upload/server/content/files/160a0ccf1b600a---dofavaliwubibu.pdfIn PDF document text
- https://spacio.hk/attachment/file/90639136796.pdfIn PDF document text
- http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607331b0aba5e---nuputafokalivigafi.pdfIn PDF document text
- https://bowenpainter.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607507263a52b---20226039230.pdfIn PDF document text
- https://m-co.de/wp-content/plugins/super-forms/uploads/php/files/4fch7b7tgfrq9t0oh0e2b70slp/weponewedizedekokesawu.pdfIn PDF document text
- http://archinfo.ru/uploads/file/zapel.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_off0000e73b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE73B | 17664 bytes |
SHA-256: ee887de7e303c275659f43e86705a8a747c36373fdab9d3b64c8e64bcc026ccc |
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font_01_sfnt_off00011480.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11480 | 11156 bytes |
SHA-256: 743934baf619472dbc8d72e93132ba7a97011ed340b8705b7333edfe68cb9b91 |
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font_02_sfnt_off00012ea7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12EA7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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