MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by multiple heuristics as malicious, including a high-confidence ML classifier and ClamAV detection. It contains numerous links, many pointing to compromised CMS upload directories or disposable hosting, indicating a link farm designed to redirect users. The document body is heavily obfuscated and unreadable, suggesting an attempt to conceal its malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://www.phoenixdentalacademy.co.uk/wp-content/plugins/super-forms/uploads/php/files/e527a4821135d223ad109b8cab52ecf9/vavoxelelidopuwomor.pdf In PDF document text
- http://fullcolorspandoeken.nl/userfiles/file/subugabapodijewawug.pdfIn PDF document text
- http://iideree.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607d85cd8061e---97446675152.pdfIn PDF document text
- http://langeline.com/ckeditor/upload/files/20134242807.pdfIn PDF document text
- https://hps-gruppe.com/wp-content/plugins/super-forms/uploads/php/files/kd48s2ps0s8m8oput68mid8ln4/88984905071.pdfIn PDF document text
- http://jpind.pl/userfiles/file/12714123208.pdfIn PDF document text
- http://asdgolfclubtoscana.com/writable/public/userfiles/file/77511470984.pdfIn PDF document text
- http://zonweringnederland.com/ckfinder/userfiles/files/4965269561.pdfIn PDF document text
- http://osrclass1967.com/clients/8/84/84e84eb3bb32f45446e669e24fea3ebc/File/wirekevuvezebijomo.pdfIn PDF document text
- http://dentherapia.hu/files/file/lurojofupitog.pdfIn PDF document text
- https://conexus-study-abroad-travel.com/ckfinder/userfiles/file/muwodukuxa.pdfIn PDF document text
- http://geredekombiservisi.com/userfiles/file/11473795345.pdfIn PDF document text
- https://cambodiadriverservice.com/userfiles/file/24781008163.pdfIn PDF document text
- http://kppzp.pl/userfiles/file/13682524637.pdfIn PDF document text
- http://coffee33.ru/archive/file/keromafodiresevefo.pdfIn PDF document text
- https://primax.fr/wp-content/plugins/super-forms/uploads/php/files/a9b8gtckfukq68n1kbe08hke87/97241142278.pdfIn PDF document text
- http://scbczy.cn/up_files/file/20210624_005345.pdfIn PDF document text
- http://www.virtualaid.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160a2b2b7c74b2---42649344654.pdfIn PDF document text
- http://chinasoftcore.com/userfiles/file///2432468473.pdfIn PDF document text
- https://extremetour74.ru/wp-content/plugins/super-forms/uploads/php/files/e648d3425c012165388da13cbd6ccb3c/jixirudunuxasiferokuzifu.pdfIn PDF document text
- https://xn--1--8kcai1ck2bs.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/2f96cfe3848729e00f6529da1ac9acc0/merobepidapakumorid.pdfIn PDF document text
- https://eduinfinite.com/wp-content/plugins/super-forms/uploads/php/files/91af73c343a3679fa8138b0cb12d5c3f/90921919823.pdfIn PDF document text
- http://ebiocell.com/uploadfile/file///2021052218483930.pdfIn PDF document text
- http://gaskinfamilyreunion.com/clients/b/b7/b798c9f9e2af69c3a5b950a06e4ade8e/File/rebofemajodepeninibe.pdfIn PDF document text
- http://www.agrosystem.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160831c80a105c---nakokabenumes.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=ohm%27s+law+definition+class+12PDF 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_off0000cb27.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB27 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e339.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE339 | 17568 bytes |
SHA-256: 9616bcdd90233a3aa1e333eac139c8f139899d2ce6d3e8f85e8c79b87abb0325 |
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font_02_sfnt_off000111a6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111A6 | 10960 bytes |
SHA-256: 5632470d110045e0532973df173231e1b8488aa8c5a18f7d5ea807f83ddb2128 |
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