MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains a large number of embedded URLs, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm designed to lure victims to malicious content. The document body is heavily obfuscated and appears to be generated by wkhtmltopdf, providing no direct user-facing lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
Heuristics 6
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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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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://irlanc.ru/uplcv?utm_term=lord+of+the+rings+fire PDF link annotation
- https://umartravel.com/files/57894756530.pdfIn PDF document text
- http://asokmontridental.com/userfiles/file/duvimuranowuniritedox.pdfIn PDF document text
- http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a1ff5537521---20638354982.pdfIn PDF document text
- http://www.anieliasfx.com/uploads/textareas/file/siximopibosexawazubaxof.pdfIn PDF document text
- http://appli-veolia.net/ckfinder/userfiles/files/36128603517.pdfIn PDF document text
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a371fe7ea38---kexizabebasavobixa.pdfIn PDF document text
- https://bonpetsupply.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084c2c7b61df---lebikoru.pdfIn PDF document text
- http://mikomisushiwc.com/uploads/files/warapamelimisitojogur.pdfIn PDF document text
- https://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b115a52e608---gabawibamatamoja.pdfIn PDF document text
- http://local-minicab.com/survey/userfiles/files/77107908744.pdfIn PDF document text
- http://moon-villa123.com/CKEdit/upload/files/bobabodebaroku.pdfIn PDF document text
- http://vtvxm.vn/userfiles/file/82559485959.pdfIn PDF document text
- http://www.leesii.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b7aae38d75---70766290909.pdfIn PDF document text
- http://www.suffaheducation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c0728b3943c---sakikunodenovewigipimut.pdfIn PDF document text
- http://sns-russia.ru/userfiles/file/tagamakemigemubabuta.pdfIn PDF document text
- https://irantruck.ir/data/file/bedejaguxarumiwewi.pdfIn PDF document text
- http://odpadykj.cz/UserFiles/File/lesaza.pdfIn PDF document text
- https://elicopter-de-inchiriat.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16071dba43fe02---23742464795.pdfIn PDF document text
- http://golfproradost.cz/webpagebuilder/ckfinder/userfiles/files/vufekarekirubepafaji.pdfIn PDF document text
- http://www.melodypods.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079a89a352d4---doropowewebuxemajutufid.pdfIn PDF document text
- https://balance-global.com/wp-content/plugins/super-forms/uploads/php/files/8dvh0rrlj5mmrur485ktiqa7i0/32385566589.pdfIn PDF document text
- https://bykevin.com/wp-content/plugins/super-forms/uploads/php/files/e36e9be0372c1f38765c36920db56f53/40613916552.pdfIn PDF document text
- http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608058f0ae362---boparagapube.pdfIn PDF document text
- https://snqrsl.quebec/upload/editor/file/91286984378.pdfIn PDF document text
- http://mediaworld.pro/ckfinder/userfiles/files/39882006563.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ed65.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED65 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0001057c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1057C | 10384 bytes |
SHA-256: 27200f354d77a767a07242489d9b6d26336fde7c38ab822721bf92ea39e96d1a |
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font_02_sfnt_off00011ca4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11CA4 | 18124 bytes |
SHA-256: 8fab7768610433d787d020a10ea3f7a7f7ddc0495fcb48084fb07034b34e84f7 |
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