MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The file is identified as malicious by ML classifiers and ClamAV, with multiple heuristics indicating it functions as a link farm. The PDF contains numerous external URIs pointing to compromised WordPress sites, which in turn host other PDF files. This suggests a multi-stage attack designed to lead users to malicious content, likely for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9833
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://genesisbehaviorcenter.com/wp-content/plugins/super-forms/uploads/php/files/5c3d0c610f029495650b8c76dc771f1c/29306546278.pdf
- https://www.helpfulhunks.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160a6757cc86ee---16348628448.pdf
- http://hum-lucknow.org/test/fckeditor/file/guvotopedowolazirowivom.pdf
- http://lbs.ac.at/wp-content/plugins/super-forms/uploads/php/files/fka4d2uksu6j0o1ddslgtbp7i1/gemobatiridufetaluj.pdf
- https://thejasmineway.net/wp-content/plugins/super-forms/uploads/php/files/nfn7r118rvfmnq6lp69hmg3vtv/78449454656.pdf
- http://sakaryakasaplarodasi.org/userfiles/file/didilikemadinura.pdf
- https://searchlink.org/userfiles//file/58666050239.pdf
- http://entryexpress.online/chapter_images/files/89489143350.pdf
- http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f6398347b7---vurabif.pdf
- http://alpha-cp.com/userfiles/file/vulelajiputazozibopivogo.pdf
- http://afgventuregroup.com/cfiles/file/sinamameva.pdf
- https://footballsod.com/images/ck-uploads/files/xikowixul.pdf
- http://olimpic.hu/ckfinder/userfiles/files/83187879244.pdf
- https://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7f0f28b145---bagepobolife.pdf
- https://www.diktu.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078b17a6b523---30979402474.pdf
- http://xn--80aadq3ae7aa5k.xn--p1ai/upload/file/safawagemeluvujiga.pdf
- http://www.alexgis.com/siteuploads/editorimg/file/boxukoj.pdf
- https://szaktel.hu/uploads/file/52236235242.pdf
- https://polinagerz.ru/wp-content/plugins/super-forms/uploads/php/files/9dlfskgkkprt5clapj1s5cdgs2/tivopokukojabuluxe.pdf
- https://www.charityweiss.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b7c7646300b---97406183866.pdf
- https://bladmedyczny24.pl/wp-content/plugins/super-forms/uploads/php/files/a7362c6e1eaa2a7206dbb78376f9e7f0/bupofumodekurani.pdf
- http://www.kindytennis.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084fcfd2ecb2---guzadasirugezabad.pdf
- https://singaporenotarypublic.com/wp-content/plugins/super-forms/uploads/php/files/9ba1d8c5fc14308d415d391a3912db6b/90261858475.pdf
- http://studiobaliva.eu/userfiles/files/99700576649.pdf
- https://creationstationdance.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079dc3b50e37---nisonuk.pdf
- https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/16086ffcfde065---54200156686.pdf
- http://protech.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/160879a2da222e---jinotijove.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=would+you+rather+challenge+game
- 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_off0000de12.bin2aaa08abe5146bf6ec07cf340d37130a9dac29181dd4f0f97f5e6c3091472655 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE12 | 17172 bytes |
font_01_sfnt_off00010acd.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10ACD | 16792 bytes |
font_02_sfnt_off000122e4.binc32764e77dc6b7e9f970f1846ef49ffaccdcd8510ff2fc0de6f24f72019aecdb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x122E4 | 10764 bytes |
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