MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains a large number of embedded URLs, many of which point to compromised WordPress sites hosting further PDF documents. This structure strongly suggests a link farm designed to direct users to malicious content, likely for phishing or malware distribution. The ML classifier and ClamAV detection further support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://hps-gruppe.com/wp-content/plugins/super-forms/uploads/php/files/l97ekth9set36973l66r1kkqiv/51765225881.pdf
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160767e1222b35---25396921711.pdf
- http://visit-pune.com/userfiles/file/74022858822.pdf
- https://makemycake.gr/wp-content/plugins/super-forms/uploads/php/files/iul11o1qd5s8b7063j96o7b4bh/13083823812.pdf
- https://thetitangroup.ca/wp-content/plugins/super-forms/uploads/php/files/2ce978f10f8da59a22e624f6088e0d22/69862956447.pdf
- https://www.hed-endo.hr/wp-content/plugins/formcraft/file-upload/server/content/files/16100b8703935a---navowuxezizowilusigifi.pdf
- https://mrdak.cc/uploadfile/files/xinekugatilubetajerufun.pdf
- http://www.skup.it/wp-content/plugins/formcraft/file-upload/server/content/files/1606f202650661---99306846267.pdf
- http://yaqeen-eg.com/userfiles/file/lorubosurukegipixo.pdf
- http://dfwsedan.com/nbloom/fckuploads/file/57068774362.pdf
- https://mimpishio2bet.com/contents//files/kuzameparodomoguluk.pdf
- http://babyindex.nl/images/uploads/82721652293.pdf
- https://www.intermediastudios.com.mx/wp-content/plugins/super-forms/uploads/php/files/50c06bde58bed9bec4fc8c6e1f94db6d/detosukibebojoligo.pdf
- https://fieldofgreen.com/wp-content/plugins/super-forms/uploads/php/files/489b6813178b6526db5387cc5b433e1a/jotug.pdf
- https://ankaratemizlikcim.com/depo/sayfaresim/file/wekafamufovubuluv.pdf
- http://www.luminicaambiental.com/wp-content/plugins/formcraft/file-upload/server/content/files/160801e9ec005b---saniwikimaxolezego.pdf
- http://omni-links.com/images/blog//file/labonijemanukegeb.pdf
- https://mattweidnerlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c9802c54589---68157146342.pdf
- https://shotclock.ca/wp-content/plugins/super-forms/uploads/php/files/be81d4715660885d22dc2b0dd68a588a/94148029070.pdf
- http://chekeeh.ir/basefile/chekeehir/files/luxet.pdf
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160a57e9c262c0---wewaxubisux.pdf
- http://agierresrl.it/userfiles/files/segexogivurivipipilutaf.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=structure+of+academic+text+pdf
- 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_off0000dd18.bin41daca22c4166884733ce391e7d0cafda438f2571506c08bfc6ce14ef6d497ea |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD18 | 17220 bytes |
font_01_sfnt_off000109bf.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109BF | 16792 bytes |
font_02_sfnt_off000121d6.bin168abdb1d67b4aac60e337df9dc62f6c06e4242b961cfe976d7d67f4bb189ba5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x121D6 | 10740 bytes |
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