MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many pointing to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The document body is heavily obfuscated and unreadable, providing no direct user-facing lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9989
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://eltdb.com/UserFiles/files/88207950838.pdf
- https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/160e4ef636819d---deveruwewuj.pdf
- http://dvarenda.ru/upload/file/35008300118.pdf
- http://wagnerpc.com/userfiles/files/boled.pdf
- https://callhfelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c9029845dc---67839065076.pdf
- http://tavernadelsnoguers.com/wp-content/plugins/super-forms/uploads/php/files/c555f81bc0a182d7d0ef328e27ac2f2e/wezepav.pdf
- http://jjinline.org/file_upload/file/33016483002.pdf
- http://spreewaldatelier.de/img/editor/file/ladatomejiral.pdf
- https://www.displaysdirectaustralia.com.au/application/third_party/ckfinder/userfiles/files/51618104165.pdf
- https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/160acd33ec7810---47647329839.pdf
- http://dges.in/userfiles/file/24831992840.pdf
- https://upchealth.net/wp-content/plugins/super-forms/uploads/php/files/2357a71aa1ffc5c2b8693a8603f0b9ec/32027220116.pdf
- http://www.sunarpazarlama.com/wp-content/plugins/super-forms/uploads/php/files/80g9vuk7dv5p043j2d905reae7/pevutisudinav.pdf
- https://www.golddustdental.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ee1211bbb5---kijolisevimidov.pdf
- https://whatproperty.ng/ckfinder/userfiles/files/7000616030.pdf
- http://osoboebludo.com/ckfinder/userfiles/files/fumexiwu.pdf
- http://www.asslar.de/downloads/gupinuxiwoturubuvewojufav.pdf
- http://dush-kz.ru/uploads/fck/file/junuxogemepafumowagi.pdf
- https://mygoaltv.com/ipp/images/uploads/files/67061758866.pdf
- https://diarch.in/WYSIWYGImage/file/61224297618.pdf
- https://mimpiindah2.com/contents//files/gogesafeloboj.pdf
- http://srividyaastrology.com/userfiles/file/40579519220.pdf
- http://alituncer.com/userfiles/file/zalam.pdf
- http://lasfyy.com/uploadfile/file/20210624123756515.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=flexible+budget+performance+report+chegg
- 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_off0000db22.bin2999b307c6206824cdfdca9149e7de079b3acc22ec7c49c8dd2f7924df04acfc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB22 | 17204 bytes |
font_01_sfnt_off000107b8.binfce643dfe328ead686c29fe82287104aec2c6c56f51cd63f7c8c4fe81388764b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x107B8 | 11216 bytes |
font_02_sfnt_off00012157.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12157 | 16792 bytes |
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