MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links to external websites, many of which are hosted on compromised WordPress installations. The 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' heuristics indicate a pattern of using disposable hosting and compromised sites to host files, likely for phishing or distributing further malicious content. ClamAV detection as 'Pdf.Phishing.Trojan' further supports the malicious classification.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://wbbray.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606fa8de27f76---tutobutemememe.pdf
- http://www.yoko-ono.be/images/userfiles/file/73046024487.pdf
- http://www.melloecastro.com/wp-content/plugins/formcraft/file-upload/server/content/files/160767f31ecf5f---37284116542.pdf
- https://aguiapromocional.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608332fa0bd6e---kobirupofomek.pdf
- http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/160cf628bda056---59518526927.pdf
- http://technocom.pl/editor/file/towexuxinerepegen.pdf
- https://soudurelauziere.com/upload/editor/file/31409542225.pdf
- https://ikima.fr/uploads/file/webaxiwuk.pdf
- https://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a959d506736---22193838181.pdf
- https://robertmatzuzi-massagetherapist.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b8426a88e7a---55796542222.pdf
- http://sad-azov.ru/wp-content/plugins/super-forms/uploads/php/files/37174bdcdb16e2d26ceba4397f017fe3/tamagaf.pdf
- http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160c65469138c7---takoniwuvebi.pdf
- http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/cip89st96d1bkh2t2rrn8r56l4/tafowe.pdf
- http://dongxuyen.org/upload/files/vedifarura.pdf
- https://cremeconferences.com/wp-content/plugins/super-forms/uploads/php/files/a6cd2c80697f9e7d83c46228a348f209/xugilanakawu.pdf
- http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607ca4c3efc83---rodowabogevurixitunel.pdf
- http://agataklimowska.pl/userfiles/file/fodaki.pdf
- http://www.x454.com/wp-content/plugins/super-forms/uploads/php/files/r8gpl5jop007n9ode9obvclsg7/33737986418.pdf
- https://uleshuzatabc.hu/files/file/kinumu.pdf
- https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607bc6fabd16d---fovuzugofaguje.pdf
- https://elicopter-de-inchiriat.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160b48f95d8f2c---jibebedivarefowekuxudeb.pdf
- https://www.pharmaright.ca/wp-content/plugins/super-forms/uploads/php/files/7bgjegosnsnqc2430qq5222v16/tajonel.pdf
- https://alphaveneers.co.uk/wp-content/plugins/super-forms/uploads/php/files/b99f8f97f916c2597541969e87c502a1/79496680212.pdf
- http://www.patricktennis.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca16e85a6a---pizonagosi.pdf
- http://www.telsercom.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a57ed80c657---pigivisewitikux.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=interference+of+light+is+evidence+that
- http://kioskcondoweb.wpengine.com/wp-content/plugins/formcraft/file-upload/server/content/files/160949147495c6---35900235649.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_off00010439.bin532c424881466f862405942c02f4c93887458bbbb88e5456024fbb06d045f3c9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10439 | 17564 bytes |
font_01_sfnt_off00013262.bin214afe7049c1f3c43fdab7fb67782f6ceb7ca4fc689f3b593408ac45f1b7a6c9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13262 | 10772 bytes |
font_02_sfnt_off00014aee.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14AEE | 16792 bytes |
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