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 ClamAV detection for 'Pdf.Phishing.Trojan'. The file contains an embedded JavaScript stream and numerous external URIs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users to malicious content. The ML classifier also assigned a high probability of maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://encoyun.com/calisma2/files/uploads/10662419847.pdf
- http://ormansagszive.hu/upload/file/todegivajuleradiloxalo.pdf
- http://seatraderhk.com/userfiles/18964649001.pdf
- https://myhoorayhealth.com/wp-content/plugins/super-forms/uploads/php/files/dc062993d815e1958b6ff74703306373/1238649457.pdf
- https://www.shamshabaddiocese.org/files/js/ckfinder/userfiles/files/61122468087.pdf
- https://cryptoshift.be/anaeter_capital/siteadmin/userfiles/files/77861131150.pdf
- https://kclandscapes.com/ckfinder/triplebuserfiles/file/rulabujobesupigidi.pdf
- http://gomsuhoangminh.com/app/webroot/uploads/files/26627490168.pdf
- https://hoffmanowska.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1613b12fe049d6---kigadabiw.pdf
- https://nuevocoach.co.uk/wp-content/plugins/super-forms/uploads/php/files/c3da6a4e1ce0eac9c0dcf4068bdc321e/80285256624.pdf
- http://studioschicchi.eu/userfiles/files/koravuxuf.pdf
- http://milcontabil.com.br/wp-content/plugins/super-forms/uploads/php/files/j9e7st3l4nrfo0opg6mlcbk603/nulevanobusojepowip.pdf
- http://metrocars.london/survey/userfiles/files/doxametuvaf.pdf
- http://naturalmis.com/userfiles/file/jepupafumezatu.pdf
- http://uts.edu.co/portal/app/ckfinder/userfiles/files/61406775316.pdf
- http://kbidc.kr/upload/editor/file/1630491261.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e41aeb8c96---41494852708.pdf
- http://iphonedown.com/ckfinder/userfiles/files/61635387821.pdf
- http://xn--2e0b30g3uq7pay7m.com/upload/fckeditor/file/15748694503.pdf
- http://sangtaoad.com/uploads/userfiles/file/tuliniw.pdf
- https://revive.fashion/upload/files/jotagitesemep.pdf
- http://swvocal.com/data/se2/file/83669784798.pdf
- http://www.combatsim.eu/wp-content/plugins/formcraft/file-upload/server/content/files/161329c3bdc050---sagevirademofog.pdf
- https://sdhouse.info/ckfinder/userfiles/files/pazezemuke.pdf
- http://taiwan-tsai.com/upload/files/dugexemutoximojuk.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=how+to+retrieve+deleted+messages+in+inbox
- 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_off0000e992.bine8bafd630a4d4bd8ace9a41a2335a4a95b93a60bbe3087d2c5e8f6092dbaea83 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE992 | 17420 bytes |
font_01_sfnt_off00011640.binff814dbfa16fcfc072548fe334ad5122ac02dc23624d1014d484de3e7e57b0b3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11640 | 10976 bytes |
font_02_sfnt_off00012f87.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12F87 | 16792 bytes |
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