MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous links to compromised WordPress sites, identified by heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM'. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to lure users to malicious content or phishing pages. No scripts were extracted, but the link farm structure is a common tactic for distributing malware or conducting phishing campaigns.
Machine Learning
- Nyx PDF Classifier malicious score 0.9911
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.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d3b335f047---tudowuniwezivubibidaz.pdf
- http://jun-travel.com/userfiles/file/xelemozezo.pdf
- http://grupomarsamo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608300f0e36e1---97652959681.pdf
- https://aparcaderoshaddaichile.cl/uploads/images/files/serepenusegevu.pdf
- https://www.aceitedeoliva.com/wp-content/plugins/super-forms/uploads/php/files/435683fa8d2a1a02f18bcab928677a2b/34027864014.pdf
- https://dsodrecital.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b29b0b18ac---nasibap.pdf
- http://mesotects.com/wp-content/plugins/formcraft/file-upload/server/content/files/16108c94e60614---38563428657.pdf
- https://ncfouting.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc7f9737ac5---sogozedefokudeme.pdf
- https://www.engltg.com/wp-content/plugins/super-forms/uploads/php/files/2eb15331b5fd0dfb8c43b4c3069fc2a0/4415393125.pdf
- https://ecoinkworld.com/wp-content/plugins/super-forms/uploads/php/files/92bd0a5b4068b33eae29b6d4df775045/55638178031.pdf
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16085799da3473---zowijigibix.pdf
- https://istihdamhaberleri.com/upload/ckfinder/files/10631478364.pdf
- http://unipsyclinic.com/userfiles/file/20210605022547.pdf
- http://bukhatirhomes.com/userfiles/file/memigenesidagiseviv.pdf
- https://stcatherine.ac.ug/wp-content/plugins/formcraft/file-upload/server/content/files/1608fdd096d5f9---lekedivazujovate.pdf
- http://www.festivalmarrakech.info/wp-content/plugins/formcraft/file-upload/server/content/files/16083a33c7a486---bezemegomire.pdf
- http://www.reenactmentmarket.eu/images/wyswig_images/file/70901684066.pdf
- https://www.hemoroidklinigi.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080a7dd03f86---17645062672.pdf
- http://seoulsquare.com/userfiles/file/gabiledosutolasuvovi.pdf
- http://buddhavehicle.com/userfiles/file/mutaxazuvisatenijofozake.pdf
- http://gayaarchi.com/userfiles/file/20210619021352.pdf
- https://abugfreemind.com/userfiles/file/kixetane.pdf
- http://whkmradio.com/userfiles/file/49483086853.pdf
- https://harpethvalleyhealth.com/wp-content/plugins/super-forms/uploads/php/files/5fafb6445eb21a279fb594f514cd88de/93157780966.pdf
- https://zagorjeadventureteam.hr/files/48858367919.pdf
- https://helicopterleasingservices.com/userfiles/files/4713184911.pdf
- https://utilitydiscount.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a5655f9f477---49325446396.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=survivor+season+39+cast+left
- 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_off0000e444.bind3826e4a860c338188fd724992bab2a7543d77d78964540ff56c7d001e7c7884 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE444 | 10912 bytes |
font_01_sfnt_off0000fdb1.binb255c498990d940647466959e509b07f221302390a2b25c0de0f368469c88904 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDB1 | 17068 bytes |
font_02_sfnt_off000129ed.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x129ED | 16792 bytes |
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