MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by a machine learning classifier and ClamAV, flagging it as a phishing trojan. Static analysis revealed it functions as a link farm, with numerous embedded URLs pointing to compromised WordPress sites and disposable hosting. These links likely serve to redirect users to malicious content or phishing pages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://yidinfo.net/wp-content/plugins/super-forms/uploads/php/files/50nqmdjsjmsj4a6vvfb8fgm6is/22371451178.pdf In PDF document text
- http://j1medical.com/uploaded/file/fezutirudo.pdfIn PDF document text
- http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/b35e18cd2e2e9dc4d2a1fdfce889b8c3/putuxujobixoromusedut.pdfIn PDF document text
- http://hattrick-sports.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078d157b7dbc---perosagarezefutev.pdfIn PDF document text
- http://www.ellisrasbetonwerke.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160bd62d4f3d60---73232426063.pdfIn PDF document text
- http://tofuyatogo.com/uploads/files/88309533049.pdfIn PDF document text
- http://zavalinka.by/var/upload/file/subitagazivelowamorujum.pdfIn PDF document text
- https://t2sc.me/userfiles/90843192490.pdfIn PDF document text
- http://bamt.be/wp-content/plugins/formcraft/file-upload/server/content/files/16072519019620---liduduvikegibolij.pdfIn PDF document text
- http://resheto.ru/users_images//fck/file/wufaneduraweliwade.pdfIn PDF document text
- https://gancza-yacht.pl/userfiles/file/sodosuguvidopefobo.pdfIn PDF document text
- http://baldonimarcostudio.eu/userfiles/files/bapiwu.pdfIn PDF document text
- http://topup-fight.com/ckfinder/userfiles/files/36650941318.pdfIn PDF document text
- http://vankouwenenmastop.nl/UserFiles/file/85279656717.pdfIn PDF document text
- http://omonetach.pl/foto/ilustracje/file/subev.pdfIn PDF document text
- http://www.siposferenc.hu/html/kasot.pdfIn PDF document text
- http://bascobrunswick.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16076570bf1fb3---bilezo.pdfIn PDF document text
- http://biosite.ru/images/news/file/96279064111.pdfIn PDF document text
- http://gfhs1978reunion.com/clients/56625/File/44562255673.pdfIn PDF document text
- https://alignerco.com/wp-content/plugins/super-forms/uploads/php/files/b4097dd1594f837e1c8024780eae45c9/romixidisawogikugazedo.pdfIn PDF document text
- http://fabrykakonwersji.pl/wp-content/plugins/super-forms/uploads/php/files/eb3db4ab5ee30196f992acc5c125c71f/81805890613.pdfIn PDF document text
- https://afd.me.uk/wp-content/plugins/super-forms/uploads/php/files/mieinio7on0o2toe0jh57je5q9/tawesegivakeranuma.pdfIn PDF document text
- http://deurenhanger.nl/userfiles/file/25111067798.pdfIn PDF document text
- https://keongracun.org/contents//files/jivewurubovaxuminoxob.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=miss+universe+philippines+question+and+answer+2019PDF 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_off0000f7ec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7EC | 11340 bytes |
SHA-256: 9eabb648b48b4975d0a6ee5a5f2bca2ea1eb8ed89083275ffcf30a8b18599e9a |
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font_01_sfnt_off00011278.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11278 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012a8a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A8A | 17928 bytes |
SHA-256: f1d22b0bcb3bc42dbdfe1af31ebf45f7619becfcda8c941fd7f1c66c2e22d884 |
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