MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains an embedded JavaScript stream and multiple external URIs, many of which point to potentially compromised websites hosting PDF files. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' indicates the document likely instructs the user to download an archive, suggesting a multi-stage attack where the password protects the payload from initial scanning. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 8
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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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Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LUREDocument gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
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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://egyiksem.hu/uploads/file/19295941418.pdf
- http://www.awakohchang.com/image/upload/File/1916630340.pdf
- http://cpghollywood.com/userfiles/files/lozegotonetewitonimilop.pdf
- https://gazelletr.com/userfiles/files/dagawidejet.pdf
- http://xn--9w3b11kh5l.com/ckupload/files/totirosubamisegito.pdf
- http://www.pianoszimmermann.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16080983f65e42---rilarelugovefamuto.pdf
- http://underbutter.cz/download/foto/67651186127.pdf
- https://deepex.hu/hirek/files/62755383393.pdf
- http://markasib.ru/ckfinder/userfiles/files/fozovojififefak.pdf
- http://golden-candies.ru/webroot/files/files/zosaxotenizo.pdf
- http://computerdoki.hu/user/file/gavurakixozemegoxat.pdf
- http://rungrawin-itt.com/userfiles/files/85983999729.pdf
- http://toyotarenta.net/FileData/ckfinder/files/20210716_4F377562AACA1F3D.pdf
- http://ontheedgeofnow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b74c7a4dd55---zomabeledepotamotiwu.pdf
- http://hsound.ro/images/custom/file/54967026423.pdf
- https://nowackleverkusen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160d9c71082049---18788426460.pdf
- https://boldvision.tv/wp-content/plugins/formcraft/file-upload/server/content/files/16075eb003c6b8---97475489812.pdf
- https://giriconsultancy.com/content_files/files/gujedujeve.pdf
- http://t-p-fortune.com/userfiles/file/24573769241.pdf
- http://to-kajihan.net/js/upload/files/duketubiwodug.pdf
- https://www.mixedclass.com.au/wp-content/plugins/super-forms/uploads/php/files/04n7i0tnu5vr5tt6mogkecnhnj/xozajapib.pdf
- https://kachhiproperties.com/wp-content/plugins/super-forms/uploads/php/files/lcoqmtq4ra2hnml8tueu896oe3/58386375172.pdf
- https://ip-pharma.net/data/files/59284057057.pdf
- http://heninrealty.com/userfiles/files/54722894981.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=salton+electric+pressure+cooker+recipes+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_off0000dcdd.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCDD | 16792 bytes |
font_01_sfnt_off0000f4f4.bin813790373c5e455f5d145d71c6e90898541053068a5963728588efe375089ac0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4F4 | 10880 bytes |
font_02_sfnt_off00010e2f.bin684ba26acf2528b2dad7f1286c4c3cea57c60a5b1ce196e810212af3f2c1babf |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E2F | 19600 bytes |
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