MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF document contains a large number of links, many pointing to disposable hosting or compromised CMS upload directories, indicative of a link farm used for phishing or malware distribution. The ML classifier and ClamAV detection strongly suggest malicious intent. No scripts were extracted, but the structure and URL patterns point towards a common tactic of luring users to external sites.
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.risingstars.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/161121d171d3aa---86455052615.pdf In PDF document text
- http://myjobcareer.net/userfiles/file/2021052006215473499.pdfIn PDF document text
- https://travelworld.ro/userfiles/file/55760695534.pdfIn PDF document text
- http://orlickachata.cz/files/files/vaxewubipedog.pdfIn PDF document text
- http://progettarecasa.com/userfiles/files/96458413428.pdfIn PDF document text
- https://cuisinescartier.ca/upload/editor/file/norumubinizozimu.pdfIn PDF document text
- http://aci-immobilier-douai.fr/userfiles/files/8665869784.pdfIn PDF document text
- https://biovuspharma.net/userfiles/files/dejutebakorediwozubiweje.pdfIn PDF document text
- https://worldkelo.com/wp-content/plugins/super-forms/uploads/php/files/f004a9ff852c31b90c44bfc254484489/rigegodirovojagateven.pdfIn PDF document text
- http://robbinsfamilyhealthcare.com/clients/2/2c/2c787fa606fc56c3a3a24dfc5409695f/File/32626330780.pdfIn PDF document text
- http://laptopplus.be/app/webroot/files/userfiles/files/89009640802.pdfIn PDF document text
- http://noxsun.com/jingkelun/userfiles/files/20210804064703.pdfIn PDF document text
- http://namkhoabacninh.com/images/files/lolajimavadaxipurug.pdfIn PDF document text
- http://dietaltop.com/userfiles/files/xazesapukegabibepop.pdfIn PDF document text
- http://imreelectric.sk/uploads/file/mapikurojotob.pdfIn PDF document text
- http://agcslohian.com/userfiles/file/nejivugopigoguvojuvag.pdfIn PDF document text
- http://vistobrasil.net/uploads/file/zurirupopezaniteg.pdfIn PDF document text
- https://przyklejki.pl/userfiles/gapirudaniponepawul.pdfIn PDF document text
- http://www.gaviprintpack.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607174dcb7944---zavuvijinapa.pdfIn PDF document text
- http://distributoram.com/files/file/98978089844.pdfIn PDF document text
- https://spectrumohio.com/wp-content/plugins/super-forms/uploads/php/files/1ab4ee639e5127a3d5da8ec239e210ef/wobirisuvuwotozeme.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=tcpdf+error+%2Fstrong+image+unable+to+get+imagePDF link annotation
- 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_off0000b25b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB25B | 15708 bytes |
SHA-256: 2df54460b0206ff9f1cf0bc0730cea74e0bc1688c341cf463cbb756625aa7d0b |
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font_01_sfnt_off0000daaa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDAAA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f2c1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2C1 | 11200 bytes |
SHA-256: 729a5d410c526f7561b513b8ca258a9fdd574296d7156e7a4cea8611ec4a7c47 |
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