MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics suggest it functions as a link farm, pointing to compromised WordPress uploads and disposable hosting, likely to distribute further malicious content. The presence of invoice-related language further supports a phishing or scam lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9913
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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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 http://birons.net/wp-content/plugins/super-forms/uploads/php/files/11b3385e9c9596602140003c6eeb9f6e/97163890811.pdf
- https://humble-brag.com/wp-content/plugins/super-forms/uploads/php/files/86t5cfcqvkqja6hmum5jvdq4ht/15184290159.pdf
- http://immodraft.nrw/images/architekten_agentur_images_/file/814467262.pdf
- http://lushexperiences.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cb3a618042---rozinarolodafasafobafopaw.pdf
- https://movesforfree.com/wp-content/plugins/super-forms/uploads/php/files/1om9ooomd3hq1sapa65oiqq9c5/witigobuxaseforokuj.pdf
- http://philippinesroadshow.com/wp-content/plugins/super-forms/uploads/php/files/6a647e8b21648d4c13899f973c5f608e/81642011491.pdf
- https://www.pferde-fuer-unsere-kinder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160be88b8494bd---7647130194.pdf
- http://beateromer.com/bilder/file/tolojulurenivafimame.pdf
- http://moscowprice.com/content/xuploadimages/file/retedogubarutije.pdf
- https://www.emma-solutions.de/wp-content/plugins/formcraft/file-upload/server/content/files/16091d42ab371e---bukugatawaborilonotiri.pdf
- https://iamtimeshare.com/userfiles/file/biwunivomej.pdf
- http://barsugo.com/ckfinder/userfiles/files/nexixe.pdf
- http://dgn89reunion.com/clients/862287/File/bifuwipuvix.pdf
- http://lifemartrealestateconnect.com/wp-content/plugins/super-forms/uploads/php/files/nbatrr096bkumnat5p1tdufsr3/sedekuwusavikuwibibon.pdf
- https://tidaksusah.com/contents//files/sifexoji.pdf
- http://0965818789.com/CKEdit/upload/files/jitikilar.pdf
- https://emergent-partners.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d7b0a6e2b2---lalajoromu.pdf
- http://maekuangudomthara.com/ckfinder/userfiles/files/lixasisosunonokokofawuker.pdf
- http://sanphamhanquocymy.com/uploads/files/77636254110.pdf
- https://hafa-verein.de/wp-content/plugins/super-forms/uploads/php/files/e4c0bc9eeb1f763620fa6c07271d8dba/wibeb.pdf
- http://antik-cafe-bergen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160928367dd5da---losiline.pdf
- http://zabradli-znerezu.cz/userfiles/file/bipaxefubufidupejefaxabo.pdf
- http://www.x454.com/wp-content/plugins/super-forms/uploads/php/files/n8ublh7md9livi21tdprpdjqo6/goxovoripogufet.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=principles+of+managerial+finance+by+lawrence+j+gitman+13th+edition+solutions+pdf
- 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_off0001fe61.bin62af9ddcc315af9454fe0f6df6cbd96e16e1d9ba25bbf2cf8e189b9e035dab80 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1FE61 | 11864 bytes |
font_01_sfnt_off00021a46.bind7741c0ef589df19e8e17b78f42a494de19631b695c0bf48262c7e693726d939 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x21A46 | 19300 bytes |
font_02_sfnt_off00024e16.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x24E16 | 16792 bytes |
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