MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many of which are hosted on compromised CMS platforms or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of embedded URLs and the nature of the heuristics point towards a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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.grandiosa.is/wp-content/plugins/super-forms/uploads/php/files/u46te81s1k1vdtdfou7261p765/48662531661.pdf
- http://www.sparkprototypes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160712f7a20af6---gokatamiwefodedoputebeli.pdf
- https://digireg.cz/upload/80783158080.pdf
- https://psychotherapie-dr-albrecht.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b7a1299433c---67264042932.pdf
- https://kindliving.org/wp-content/plugins/super-forms/uploads/php/files/tmp/vonozizasiresajefipif.pdf
- http://www.recetasyconsejos.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b37261b1c86---vonotufiv.pdf
- http://ledseoul.com/userData/board/file/pesigefinira.pdf
- https://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c8c17fbc64a---5094470758.pdf
- http://shop-cartuning.pl/userfiles/file/8302976557.pdf
- https://www.scilights.com/wp-content/plugins/super-forms/uploads/php/files/1e6e8ce38d8aacd4f64ee45b8685e6bf/79481230093.pdf
- https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab866d6ab96---51504619949.pdf
- http://paintingservicesonline.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16080b95901be9---vivesukupawojalewexik.pdf
- http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cd1bc240cae---mizojoresekizerazodose.pdf
- http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/1608afabc2d859---41466815402.pdf
- http://anonelectronics.com/admin/fckeditor/editor/filemanager/connectors/php/upload_jpg/file/202104300026306381.pdf
- http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/1608287509a0ef---88694896823.pdf
- http://finsura-lifedirect.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16084763283fdf---dadimajekiw.pdf
- http://faradbox.pl/files/file/jebejopinun.pdf
- https://burkina-businessschool.com/business_school/uploads/file/72935612583.pdf
- https://www.azulejositurry.com/wp-content/plugins/super-forms/uploads/php/files/1udfdufh6lkn12qjg73jgbit75/20640977382.pdf
- https://alihuata.com/userfiles/file/27847663060.pdf
- https://robertmatzuzi-massagetherapist.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160cacf0919a49---vumotasowenarelipiwukur.pdf
- http://hrt-foto.hu/_user/file/jafevaxezanuxap.pdf
- http://hoangnamjsc.com/upload/files/23179648384.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=comprehension+worksheet+for+class+5
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ea00.binbbdd8eaca7b855d3b574b1bb084fb4331375e1ccf5c6a2b8c311625c00e83d3c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA00 | 11088 bytes |
font_01_sfnt_off000103d1.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103D1 | 16792 bytes |
font_02_sfnt_off00011be3.bince496a20c513df84c931aefd50d50b0e220b0985d97fb3f0b458e3d3b166eafd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11BE3 | 17216 bytes |
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