MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected by ClamAV as Pdf.Phishing.Trojan and flagged by an ML classifier, indicating malicious intent. It contains embedded JavaScript and a link farm pointing to multiple distinct hosts, many of which appear to be compromised WordPress sites used for hosting PDF files. These links likely serve as a lure or redirect to a malicious payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://springswellness.net/wp-content/plugins/formcraft/file-upload/server/content/files/1606c7ffca5eb7---13641746041.pdf
- https://taichielite.com/louis/taichi/ckfinder/userfiles/files/doserojuzexobekatirunir.pdf
- https://aartipalette.com/userfiles/file/17091273802.pdf
- http://npxbyy.com/wang3_3_10_27/Upload/Upload/file/202167045131356.pdf
- http://webdulich.com/js/ckfinder/userfiles/files/vesikolilatudesubo.pdf
- http://pmdrecycling.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7d77e92712---xunufilijijifaveduxubapen.pdf
- http://test.uebersetzungen-nesselberger.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607853addfa08---wukuke.pdf
- http://onlineticketreview.com/images/file/saros.pdf
- https://mrmusicfoundation.org/wp-content/plugins/super-forms/uploads/php/files/s4osifr39qso98f8g7khn2pj5l/72452635736.pdf
- http://csc0535.com/userfiles/file/20210618001339_409efe.pdf
- http://dtcguild.org/clients/80367/File/83982056814.pdf
- http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/160babf9478e41---98496873767.pdf
- https://www.lavishlook.se/wp-content/plugins/super-forms/uploads/php/files/5324fcd77ae5af3ba7c7e32d40209168/bigiten.pdf
- http://thermogroup.ru/uploads/files/letuveb.pdf
- http://xn--82cac8d3ajrc0gd0bo4a7nf3qg.com/userfiles/files/24407643905.pdf
- http://abapaposentados.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607963f32b3aa---67435936714.pdf
- https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/1f1600b61dac97d1f5e10d0a62c8fb54/47063172191.pdf
- http://www.whirlpool-beachcomber.at/wp-content/plugins/formcraft/file-upload/server/content/files/1606e85b9c0f10---63929764156.pdf
- https://anitacalderon.com/ckfinder/userfiles/files/detesipegupuvamezojaxebul.pdf
- http://araonline.hu/uploads/file/42410458375.pdf
- http://modellszerviz.hu/userfiles/file/81141609775.pdf
- https://vizzzio.ru/wp-content/plugins/super-forms/uploads/php/files/481780bca97223d97a447279626e43da/fifunegotiw.pdf
- http://rauvuonsach.com/images/uploads/files/34066119570.pdf
- https://seroinstitute.com/wp-content/plugins/super-forms/uploads/php/files/bdd8ee4727cca1a2251ce250f6c9806c/23391574687.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=dungeons+and+dragons+bird+race
- 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_off0000ebea.bin8033caaaa5b960a90c46481746c4f13d32319b55106812ed61fd5bb17b202fad |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBEA | 17496 bytes |
font_01_sfnt_off00011956.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11956 | 16792 bytes |
font_02_sfnt_off0001316d.bin19fe752d990f604f080ceaf7e868dfc35a14f8748c94dc70c9a8fc4d40ab5d7f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1316D | 10640 bytes |
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