MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. Heuristics identified it as a link farm hosted on compromised WordPress sites, with numerous links pointing to potentially malicious PDF files. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure suggests a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
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://astoriareiki.com/wp-content/plugins/super-forms/uploads/php/files/bdf45fa2166ec799fffe6224ca8b8eb7/4016818933.pdf In PDF document text
- http://modelkyujin.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076150917749---68215747276.pdfIn PDF document text
- http://rana-international.com/userfiles/files/korusuxumaxojow.pdfIn PDF document text
- https://susta.vn/userfiles/file/46771134197.pdfIn PDF document text
- http://parkettes.org/clients/b/b3/b30d687fb0e6fb0c44210170e51784d9/File/xabideropowutafiwaliji.pdfIn PDF document text
- http://www.clc-engineering.com/siteuploads/editorimg/file/68682940255.pdfIn PDF document text
- http://guoyangmoju.com/userfiles/files/razewegipov.pdfIn PDF document text
- https://yastudio.net/wp-content/plugins/super-forms/uploads/php/files/9fb683fa93e74f847e6c506485ea3912/mesobimeruvuvomifalotis.pdfIn PDF document text
- https://xn--mgbaf4adbs1bd2i.net/upload/ckfinder/files/wurulifuzozozedagipoto.pdfIn PDF document text
- http://adaviestransportltd.com/userfiles/file/leniledoxafetibax.pdfIn PDF document text
- http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085c3a65911e---84914153400.pdfIn PDF document text
- http://ineke-ott.nl/keramiek-beelden-imagesfile/vujaneronifo.pdfIn PDF document text
- http://knuhpharm.kr/userfiles/file/20210707224419.pdfIn PDF document text
- https://panegovernance.com/ourprojects/chowki/UserFiles/file/nakepuv.pdfIn PDF document text
- http://forglass.sk/userfiles/file/gonozawimumodejeto.pdfIn PDF document text
- http://www.laterveer-biesenbeek.nl/ckfinder/userfiles/files/74129353691.pdfIn PDF document text
- http://rittenhousereunion.com/clients/a/ad/ad7d26974070b67854a29702aed78614/File/bikovumitamoxazi.pdfIn PDF document text
- http://akcjonariusz.com/UserFiles/file/28668023027.pdfIn PDF document text
- http://mognational.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c7bfc7b445---39533759815.pdfIn PDF document text
- http://topnotchimports.com/ckfinder/userfiles/files/segosonivosimugok.pdfIn PDF document text
- http://qiangka.com/ckfinder/userfiles/files/nuxoni.pdfIn PDF document text
- http://ypcalumni.com/clients/2/24/24042806289e0d450134266962f0a0d8/File/napomiwotorogud.pdfIn PDF document text
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1607ab4a351f3b---pulififabaxuma.pdfIn PDF document text
- http://miamiwars.pl/wp-content/plugins/super-forms/uploads/php/files/24ff1b5026ced6076ff0e9e0a0669bb0/2282906650.pdfIn PDF document text
- https://palcev.ru/userfiles/file/69044246239.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=current+aud+to+inrPDF 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_off0000dd2d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD2D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f544.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF544 | 10160 bytes |
SHA-256: 47cd52ef37d5e0b5bf87716ccdfb656a099b907078b122800d16589dd385596e |
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font_02_sfnt_off00010c15.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C15 | 15764 bytes |
SHA-256: 287785ef449783cef97c9782f04c3452f00bedb6dca7d0f049dc5ec4f6b66da6 |
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