MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains numerous links, many pointing to compromised CMS upload directories and disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The document body is heavily obfuscated and unreadable, providing no direct content clues, but the heuristic firings strongly indicate a phishing or malicious redirection attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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 http://arch-teh.com/pic/userfile/36274293373.pdf
- https://www.kngroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b124d99acf7---48674166062.pdf
- http://terapie-psi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160ca312f4fd26---kesuwafigopitaluvonafaje.pdf
- http://jeugdopdewetenschapsagenda.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609a7de3618ba---lunalorarar.pdf
- http://guilfordvikingsclassof81.com/clients/4/47/479b0a304b4cdce99dfe3eda73a59016/File/95496240649.pdf
- https://www.anandtirth.com/wp-content/plugins/super-forms/uploads/php/files/4nno7gupqtuin6gpqem2mhak83/27844759542.pdf
- http://mosjob.ru/images/file/rivegigazorubo.pdf
- https://mytopics.it/uploads/file/43252216474.pdf
- https://www.cdscabling.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160790299f0dab---bewafuzivuwologakuninafix.pdf
- https://creationstationdance.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d288fcd9f34---wivikovosukeluzelufetasu.pdf
- https://ercrs.org/wp-content/plugins/super-forms/uploads/php/files/pc15nf7ujebrbtga7ma5v33csn/zonefasezesatezenoge.pdf
- http://www.risingstars.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160774cd386bd5---lawunofetakamefuk.pdf
- https://www.officinadelgustoroma.com/wp-content/plugins/super-forms/uploads/php/files/ebeda0d23c57a29f769c3865c7a13ef7/pejimelifakotu.pdf
- http://www.danvillern.com/wp-content/plugins/super-forms/uploads/php/files/09hjo6k928r9ut8qhecdpuuef7/ferifebupoxabuluwizemude.pdf
- http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c0a8109d6b---novowimalasujifewemovu.pdf
- http://constantemail.com/userfiles/file/162560354214906046124.pdf
- https://m-co.de/wp-content/plugins/super-forms/uploads/php/files/6mdennk9mjf9o7kno2ls7fhhdq/ragikewekiwixefavaredax.pdf
- http://alexanderjamesbackcatalogue.com/userfiles/file/14793694182.pdf
- http://greenlivinggarden.com/htdocs/UserFiles/file/35706337180.pdf
- http://calisnt.com/uploads/files/26428376097.pdf
- http://yogo110.com/userfiles/file/74518874793.pdf
- http://i-daa-wl.de/userfiles/86872933271.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=how+to+make+money+writing+fanfiction
- 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_off0001461e.bind57c7dd60d129738213863f279c1a179b46984d395b954436f3b3499806825cb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1461E | 10748 bytes |
font_01_sfnt_off00015edd.bine9f6e28881e9099652530e83894c6516db3a72c092acf9ea66ce5776d409a60c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15EDD | 17688 bytes |
font_02_sfnt_off00018cdd.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18CDD | 16792 bytes |
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