MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF file detected by ClamAV as Pdf.Phishing.Trojan. Heuristics indicate it functions as a link farm, pointing to multiple compromised WordPress upload storage locations and other disposable hosting. These links likely serve as a lure to redirect users to malicious sites, potentially for phishing or further malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9986
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://www.majbrno.cz/uploads/files/tixirijorot.pdf
- http://datavincity.com/uploads/ckfinder/files/56045214086.pdf
- https://bizdrive.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/16075dc37d6202---xinejetelezof.pdf
- https://www.bluegreenshouseboats.in/wp-content/plugins/formcraft/file-upload/server/content/files/16092478cf0a52---pavijanologegasovemenuteg.pdf
- https://cashmeredreams.com/wp-content/plugins/super-forms/uploads/php/files/83565654a3ccb5a7bd570f23fe022c3c/ponizozoze.pdf
- http://visit-pune.com/userfiles/file/32849232743.pdf
- http://vidol.nl/userfiles/file/82812176110.pdf
- http://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/c6bfadc56f3428e38d86c36138dc44eb/polalidetof.pdf
- http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160b5c3ad71752---15542323461.pdf
- https://clubsecurite.fr/webroot/upload/files/61921421818.pdf
- https://ccveg.org/wp-content/plugins/super-forms/uploads/php/files/h01v5kcl3kotqei5s4hv13jah9/16086378847.pdf
- http://studiosaletta.it/userfiles/files/97419737327.pdf
- http://hoclaixebinhthuan.com/upload/contentFile/file/tebinexolategir.pdf
- http://protech.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/16111b6458e738---99981347819.pdf
- https://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a16c64b283d---defogif.pdf
- http://kamnitikamini.si/upload/files/47499288984.pdf
- https://www.generalutilities.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080dfb02b69c---29857928750.pdf
- https://www.numberoneporthill.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b0b830acc05---pejajixujotolejaritetuv.pdf
- http://isagenixmakessense.com/ckfinder/userfiles/files/56602959944.pdf
- http://amfmeg.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a4f40fbf432---58826070112.pdf
- http://cbestdesign.com/ckfinder/images_store/files/78280562504.pdf
- http://cheers-gifts.com/userfiles/jogawibud.pdf
- http://ndt-tl.ru/upload/file/tanenakakedamevadufobe.pdf
- http://mirembeestate.co.ug/wp-content/plugins/formcraft/file-upload/server/content/files/160bc53af14509---56146806310.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=nitrification+in+water
- 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_off0000f04e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF04E | 16792 bytes |
font_01_sfnt_off00010865.bin4868d3df8e168a6c57c1388480e82d75e4cfb2df060b8e0b1c16548bef5ff344 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10865 | 10176 bytes |
font_02_sfnt_off00011f64.bin04332f8e7cbdab49b72c9e355cda3322a826f3bf4016c08636ce04e4e3272a59 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F64 | 19060 bytes |
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