MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, directing users to multiple compromised websites, likely to facilitate the download of a secondary payload. The presence of numerous links on potentially compromised CMS uploads suggests a tactic to obscure the true origin of the malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 7
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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.nexidia.it/wp-content/plugins/super-forms/uploads/php/files/c6b635c44c092e491e8c415e2c4cbfd6/99345130370.pdf
- https://heatingboiler.ca/fck_upload/file/2374818610.pdf
- https://comesa.com.pe/wp-content/plugins/super-forms/uploads/php/files/hv627a1fohkueh05c1gk9o3mb7/64179167827.pdf
- http://dmn.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160c576373431a---ranumesikowogifigivati.pdf
- http://bienbao.org/uploads/files/fejufugomuponixezi.pdf
- https://jf-orvalho.pt/userfiles/file/lofuvinoxazelubaxawi.pdf
- https://esteticarcare.com/wp-content/plugins/super-forms/uploads/php/files/9114773920de5fd11382015b166603c4/70634216290.pdf
- https://finestblogger.de/wp-content/plugins/super-forms/uploads/php/files/sqvegpj6380mdple67b9o7ck6a/41388562286.pdf
- https://myhoorayhealth.com/wp-content/plugins/super-forms/uploads/php/files/070b0deb5ba60f28f6d525fc0fcb896f/detapakijezonasen.pdf
- https://migger.dk/userimages/file/72058314464.pdf
- https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/160963741214e3---71526813723.pdf
- https://cjsc.se/ckfinder/userfiles/files/98429447335.pdf
- https://www.americanapi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c2b88916a86---namagonix.pdf
- https://www.lightingdynamics.com/wp-content/plugins/super-forms/uploads/php/files/01fae9c3881bbcb41eaa1924a8b0c605/94057164233.pdf
- https://palezieux.com/ckfinder/userfiles/files/nixakuduzobanobijuvidized.pdf
- https://stakeoutllc.com/wp-content/plugins/super-forms/uploads/php/files/4f4ab889d2e936c35ccf9c7557ab56ed/fefomu.pdf
- https://accesoriosalmayor.com/images/userfiles/file/besotejimurasidofodojuri.pdf
- http://www.esthemed.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160b5dc1330661---vafefegewe.pdf
- http://joshuadacosta.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a7d6816f933---biwebududezimebi.pdf
- http://morethancars.nl/uploads/edytor/file/36126629014.pdf
- http://www.zav-mito.si/wp-content/plugins/formcraft/file-upload/server/content/files/160bcc44428037---bewimigikasa.pdf
- https://best-turbos.com/wp-content/plugins/super-forms/uploads/php/files/2ef2bec94f34cb43381d9dd87549ac19/14011160739.pdf
- https://sdyh.gr/wp-content/plugins/super-forms/uploads/php/files/r66uaum06279gpqdq38bp6rm36/63150848645.pdf
- https://businessservicesuk.com/userfiles/file/bepuwozoru.pdf
- http://www.teeintact.com/admin/fckeditor/editor/filemanager/connectors/php/img/file/99997200678.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=occupancy+agreement+form
- 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_off0000e9d9.bin67e6d137707ecca29105bcdbca419ed064609796895112d719fda333c86bbe7b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9D9 | 16744 bytes |
font_01_sfnt_off0001155c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1155C | 16792 bytes |
font_02_sfnt_off00012d73.binf01cfa8e5476e5a5012bb24adac58b84092459338971e2d08d42ccdd45e8e98b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D73 | 10756 bytes |
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