MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. It contains embedded JavaScript and a large number of external URIs, many of which point to compromised CMS uploads or disposable hosting, forming a link farm. The embedded JavaScript likely facilitates the redirection to these malicious sites, aiming to phish users or deliver further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
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 https://queure.ru/uplcv?utm_term=buy+here+pay+here+archdale+nc
- http://machi-tomo.xyz/js/ckfinder/userfiles/files/78862823939.pdf
- http://zhouzhuank.com/v15/Upload/file/2021724142961934.pdf
- https://maloneslandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608163ad2639e---sijab.pdf
- https://otartufo.com/ckfinder/tartufofiles/files/84881555242.pdf
- https://www.hasmow.com.au/application/third_party/ckfinder/userfiles/files/34890441395.pdf
- http://goldenbaycruisesagent.com/userfiles/file/73698047526.pdf
- http://peach2560.xyz/js/ckfinder/userfiles/files/wowisu.pdf
- http://windcampus.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074b9be1214d---50910851188.pdf
- http://matrixuniverzum.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1608c1a4ef2e32---nevanif.pdf
- http://www.hptindia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609932b95e44d---41071738203.pdf
- http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/1609dede31707c---rotewad.pdf
- https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1611018f4f1d8a---49854225472.pdf
- https://rittenhousesmiles.com/wp-content/plugins/super-forms/uploads/php/files/04a766120c2e0904be4fcceffa048dcd/87286433820.pdf
- http://lamarchesainterita.be/lamarchesainterita/imgdb/news/files/ripuxov.pdf
- https://floresdeserrezuela.com/aym_image/files/95854305884.pdf
- https://flycam.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1606f0dbb03f29---rorimukurukiwuzedo.pdf
- http://cameronhaddock.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e11c5f13308---zukafulanenawevevupateza.pdf
- https://www.3dreamchurch.com/wp-content/plugins/super-forms/uploads/php/files/3200c0b9cf445fe6a0d8dd2f8fa44cae/liviteb.pdf
- https://sumangold.net.vn/wp-content/plugins/super-forms/uploads/php/files/42797ginb1lngo49l102hpe7ph/gakewilal.pdf
- http://pathtojanna.com/userfiles/files/28873917787.pdf
- http://chrislahoda.ca/userfiles/file/xedixujidirunofelogevofu.pdf
- https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/160bf7a4293bc9---81407538153.pdf
- https://www.dazzlingdecor.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16070f439d9677---wukalupusewot.pdf
- http://bagpack.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/160c8a1aae8d9c---7489424597.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_off0000da6c.bin22403b52cdc582b367a598824137927c026c9f4e277594de87d053f8771e886b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA6C | 10400 bytes |
font_01_sfnt_off0000f1e8.bin2717856e2624652d4ea7157ce7e078bf9c15aa051170115fb9bc97546212965b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1E8 | 17792 bytes |
font_02_sfnt_off00011fd8.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11FD8 | 16792 bytes |
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