MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, many pointing to compromised CMS upload directories, suggesting it functions as a link farm to distribute malicious content or phish for credentials. The presence of external URIs and link farms points towards a tactic of directing users to potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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://ecomassage.pt/wp-content/plugins/super-forms/uploads/php/files/14rjg77d65l5gi71sv8k4m97oa/kozun.pdf
- https://yziact.fr/wp-content/plugins/super-forms/uploads/php/files/ikfvauetp2s74aaq1u0ms1j8bb/nasulit.pdf
- https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/16083addfeaa7d---31439150167.pdf
- http://jjmcp.jp/userfiles/Image/file/viferegakisa.pdf
- http://sobsai.com/ckfinder/userfiles/files/33154590790.pdf
- http://oneself.pro/wp-content/plugins/formcraft/file-upload/server/content/files/16074a16c4e279---30620280590.pdf
- http://zoncmswebsitebeheer.nl/files/editor/file/32179810022.pdf
- http://haithuanphat.com/uploads/files/60260911167.pdf
- https://inncredel.com/uploads/87417595179.pdf
- http://zavalinka.by/var/upload/file/vowopipusiwadewazuxa.pdf
- https://stpetejazz.com/wp-content/plugins/super-forms/uploads/php/files/l5uact1ae2l7ace2tuorsl5nga/9492751636.pdf
- https://bamfieldrental.com/userfiles/file/xomuwidumugijolosumorune.pdf
- https://christianboudreau.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086c5ede2e73---95494937687.pdf
- https://militarynetwork.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160764bb51b6ab---73191505632.pdf
- https://www.a2zmedical.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160ee659cc5abc---23034925884.pdf
- http://jhroseclassof77.com/clients/45984/File/pufibuxetazinoxiv.pdf
- https://idfusionllc.com/wp-content/plugins/super-forms/uploads/php/files/2c516de941341b5b7077c2a93a87326d/89395204142.pdf
- https://reniuved.it/file/janotexobigezaxapim.pdf
- http://dedanskecasinoer.dk/userfiles/file/52824385926.pdf
- https://www.alphaveneers.com/wp-content/plugins/super-forms/uploads/php/files/72120f8811c0b016363faa68509d3d0b/71585133503.pdf
- https://balajitutorial.com/admin/userfiles/file/kumovirumazek.pdf
- https://www.lumisolar.pe/wp-content/plugins/formcraft/file-upload/server/content/files/16080ba0594b2a---80428802179.pdf
- http://www.uds-myanmar.com/image/upload/File/64216052051.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=how+to+redeem+free+robux+codes+on+mobile
- 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_off0000f141.binb2b691e019a2eccbac071737f9c050e800029a1ca5b60898ae22e542cec92c15 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF141 | 10892 bytes |
font_01_sfnt_off00010a72.bin78720dccbd3021a2cdf63ac7a2fbcff0b2c03ba66cac6b44c9c9dd141d9b17f4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A72 | 17516 bytes |
font_02_sfnt_off0001387a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1387A | 16792 bytes |
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