MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains a link farm with numerous URLs pointing to other PDF files hosted on various websites. Several of these URLs are associated with compromised CMS upload storage, indicating a potential distribution point for malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
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://maugli24.ru/wp-content/plugins/super-forms/uploads/php/files/b9ba4d499e0accd152801b4dfc7b9aa8/bidixapuduk.pdf
- http://brmhn.com/userfiles/file/20210522225921_7s63i0.pdf
- https://www.karavanlakesfet.com/wp-content/plugins/super-forms/uploads/php/files/b2ae6a655403dfb4ec6066c254ba9c8a/nuwudid.pdf
- http://gingerwooddesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc7069ad01c---92185689554.pdf
- https://yziact.fr/wp-content/plugins/super-forms/uploads/php/files/plr44omelb628kv7j370jblfhv/93630346630.pdf
- http://diclenakliyat.com/userfiles/file/97166593509.pdf
- https://paloaltospeakerseries.com/wp-content/plugins/super-forms/uploads/php/files/6f53b0d9c99fb57b9791e20a20cfb70d/tasexe.pdf
- http://teormech.ru/teormech/usrimg/file/47492512282.pdf
- https://yarsan.ru/wp-content/plugins/super-forms/uploads/php/files/07e384fc545e6c6fec760811b5f87d65/70154012097.pdf
- http://knshzj.com/CKEdit/upload/files/287540837.pdf
- http://www.garriagricola.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d017c2485d---bituperubodavat.pdf
- http://foodchemsino.com/d/files/veselumipi.pdf
- https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/fe66cf7e1eee7dd3c42b7f083b14de52/didojibabuma.pdf
- https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077a9ef37ecb---16183962220.pdf
- https://nowbali.co.id/wp-content/plugins/formcraft/file-upload/server/content/files/1607230d1a2ca0---94331529056.pdf
- https://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16077f541b3208---22422390550.pdf
- https://aftaplan.com/works/peepsparty/html/upload_files/file/69679406387.pdf
- http://www.consorcio.edu.pe/wp-content/plugins/formcraft/file-upload/server/content/files/16080a42318ab9---wogimamumaxal.pdf
- http://www.colegiometa.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/1608c80d00f6eb---kebenesejigifirugobog.pdf
- http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16087e7d7c89a6---zufadofilefogajimirelaga.pdf
- http://tjsijiqing.com/ckfinder/userfiles/files/2021/0603/0c87a14d8b6d379bffcbce87b74f8235.pdf
- https://freedomtampons.com/wp-content/plugins/super-forms/uploads/php/files/00afa95babaca76088a5097cc8ae9dbc/kegikawivusa.pdf
- https://fieldofgreen.com/wp-content/plugins/super-forms/uploads/php/files/ef500eae88722f50ecb3366c95678ebe/govesilev.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=the+grinch+2000
- 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_off00014fbe.binf6cb18cd3207f8dde5ebdd080299df31f4c2e83a879962a8410401c5a62cf1e4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14FBE | 10120 bytes |
font_01_sfnt_off00016646.bin131d835cb5847d9c2e372c86437cb6ea1d9b3d448d8d506190b3c7d07687c261 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16646 | 17692 bytes |
font_02_sfnt_off0001951c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1951C | 16792 bytes |
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